diff --git a/build.sbt b/build.sbt
index a7231dfe..f4669e8e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -31,17 +31,18 @@ resConfigs := Seq("ja", "ru", "zh-rCN", "zh-rTW")
 
 resolvers += Resolver.jcenterRepo
 libraryDependencies ++=
+  "com.android.support" % "cardview-v7" % "25.1.0" ::
   "com.android.support" % "design" % "25.1.0" ::
   "com.android.support" % "gridlayout-v7" % "25.1.0" ::
   "com.android.support" % "preference-v14" % "25.1.0" ::
   "com.evernote" % "android-job" % "1.1.3" ::
-  "com.github.clans" % "fab" % "1.6.4" ::
   "com.github.jorgecastilloprz" % "fabprogresscircle" % "1.01" ::
   "com.github.kevinsawicki" % "http-request" % "6.0" ::
   "com.google.android.gms" % "play-services-ads" % "10.0.1" ::
   "com.google.android.gms" % "play-services-analytics" % "10.0.1" ::
   "com.google.android.gms" % "play-services-gcm" % "10.0.1" ::
   "com.j256.ormlite" % "ormlite-android" % "5.0" ::
+  "com.mikepenz" % "materialdrawer" % "5.8.1" ::
   "com.twofortyfouram" % "android-plugin-api-for-locale" % "1.0.2" ::
   "dnsjava" % "dnsjava" % "2.1.7" ::
   "eu.chainfire" % "libsuperuser" % "1.0.0.201608240809" ::
diff --git a/src/main/AndroidManifest.xml b/src/main/AndroidManifest.xml
index 6ac582fd..7238022b 100644
--- a/src/main/AndroidManifest.xml
+++ b/src/main/AndroidManifest.xml
@@ -38,7 +38,7 @@
                    android:value="AEdPqrEAAAAI_zVxZthz2HDuz9toTvkYvL0L5GA-OjeUIfBeXg"/>
 
         <activity
-                android:name=".Shadowsocks"
+                android:name=".MainActivity"
                 android:label="@string/app_name"
                 android:launchMode="singleTask">
             <intent-filter>
@@ -49,28 +49,6 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES" />
             </intent-filter>
-            <meta-data android:name="android.app.shortcuts"
-                       android:resource="@xml/shortcuts"/>
-        </activity>
-
-        <activity
-                android:name=".ShadowsocksRunnerActivity"
-                android:theme="@android:style/Theme.Translucent.NoTitleBar"
-                android:excludeFromRecents="true"
-		android:taskAffinity=""
-                android:launchMode="singleTask">
-        </activity>
-
-        <activity
-                android:name=".ProfileManagerActivity"
-                android:label="@string/profiles"
-                android:parentActivityName=".Shadowsocks"
-                android:excludeFromRecents="true"
-                android:launchMode="singleTask">
-            <intent-filter>
-                <action android:name="com.github.shadowsocks.ProfileManagerActivity"/>
-                <category android:name="android.intent.category.DEFAULT"/>
-            </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.VIEW"/>
                 <category android:name="android.intent.category.DEFAULT"/>
@@ -82,18 +60,34 @@
                 <category android:name="android.intent.category.DEFAULT"/>
                 <data android:scheme="ss" />
             </intent-filter>
+            <meta-data android:name="android.app.shortcuts"
+                       android:resource="@xml/shortcuts"/>
         </activity>
 
+        <activity
+                android:name=".ProfileConfigActivity"
+                android:excludeFromRecents="true"
+                android:label="Profile config"
+                android:launchMode="singleTask"
+                android:parentActivityName=".MainActivity"/>
+
+        <activity
+                android:name=".ShadowsocksRunnerActivity"
+                android:theme="@android:style/Theme.Translucent.NoTitleBar"
+                android:excludeFromRecents="true"
+		android:taskAffinity=""
+                android:launchMode="singleTask"/>
+
         <activity
                 android:name=".ScannerActivity"
                 android:label="@string/add_profile_methods_scan_qr_code"
-                android:parentActivityName=".ProfileManagerActivity"
+                android:parentActivityName=".MainActivity"
                 android:excludeFromRecents="true"/>
 
         <activity
                 android:name=".AppManager"
                 android:label="@string/proxied_apps"
-                android:parentActivityName=".Shadowsocks"
+                android:parentActivityName=".ProfileConfigActivity"
                 android:excludeFromRecents="true"
                 android:launchMode="singleTask"/>
 
diff --git a/src/main/java/com/github/shadowsocks/DialogFragment.java b/src/main/java/com/github/shadowsocks/DialogFragment.java
new file mode 100644
index 00000000..b05b2ade
--- /dev/null
+++ b/src/main/java/com/github/shadowsocks/DialogFragment.java
@@ -0,0 +1,15 @@
+package com.github.shadowsocks;
+
+import android.app.Activity;
+
+/**
+ * This helper class is used to solve Java-Scala interop problem. Use onAttach(Context) and remove this class
+ * when minSdkVersion >= 23.
+ *
+ * @author Mygod
+ */
+public class DialogFragment extends android.app.DialogFragment {
+    protected void superOnAttach(Activity activity) {
+        super.onAttach(activity);
+    }
+}
diff --git a/src/main/res/drawable/ic_action_delete.xml b/src/main/res/drawable/ic_action_delete.xml
new file mode 100644
index 00000000..89c372c3
--- /dev/null
+++ b/src/main/res/drawable/ic_action_delete.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+            android:fillColor="#FFFFFFFF"
+            android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>
+</vector>
diff --git a/src/main/res/drawable/ic_action_done.xml b/src/main/res/drawable/ic_action_done.xml
new file mode 100644
index 00000000..33a117f6
--- /dev/null
+++ b/src/main/res/drawable/ic_action_done.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+            android:fillColor="#FFFFFFFF"
+            android:pathData="M9,16.2L4.8,12l-1.4,1.4L9,19 21,7l-1.4,-1.4L9,16.2z"/>
+</vector>
diff --git a/src/main/res/drawable/ic_image_edit.xml b/src/main/res/drawable/ic_image_edit.xml
new file mode 100644
index 00000000..2ab2fb75
--- /dev/null
+++ b/src/main/res/drawable/ic_image_edit.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>
+</vector>
diff --git a/src/main/res/drawable/ic_social_share.xml b/src/main/res/drawable/ic_social_share.xml
deleted file mode 100644
index e3fe874d..00000000
--- a/src/main/res/drawable/ic_social_share.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="24dp"
-        android:height="24dp"
-        android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
-    <path
-        android:fillColor="#FF000000"
-        android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
-</vector>
diff --git a/src/main/res/layout/layout_global_settings.xml b/src/main/res/layout/layout_global_settings.xml
new file mode 100644
index 00000000..38261be2
--- /dev/null
+++ b/src/main/res/layout/layout_global_settings.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+    <include layout="@layout/toolbar_light_dark" />
+    <fragment android:id="@+id/content"
+              class="com.github.shadowsocks.GlobalConfigFragment"
+              android:layout_width="match_parent"
+              android:layout_height="0dp"
+              android:layout_weight="1"/>
+</LinearLayout>
diff --git a/src/main/res/layout/layout_main.xml b/src/main/res/layout/layout_main.xml
index 59b3a58b..957f7fde 100644
--- a/src/main/res/layout/layout_main.xml
+++ b/src/main/res/layout/layout_main.xml
@@ -3,83 +3,87 @@
                 xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
                 android:layout_width="match_parent" android:layout_height="match_parent"
                 tools:ignore="UnknownIdInLayout" android:clipChildren="false">
-    <LinearLayout android:id="@+id/title_bar" android:layout_width="match_parent" android:layout_height="wrap_content"
-                  android:orientation="vertical" android:layout_below="@+id/toolbar"
-                  android:animateLayoutChanges="true">
-        <include layout="@layout/toolbar_light_dark" />
-        <LinearLayout android:id="@+id/stat" android:elevation="4dp" android:visibility="gone"
-                      android:layout_width="match_parent" android:layout_height="wrap_content"
-                      android:minHeight="?android:attr/listPreferredItemHeight" android:gravity="center_vertical"
-                      android:paddingStart="16dip" android:paddingEnd="16dip" android:focusable="true"
-                      android:paddingTop="16dip" android:paddingBottom="16dip"
-                      android:background="@drawable/background_stat" android:orientation="vertical"
-                      android:nextFocusRight="@+id/fab">
-            <LinearLayout android:layout_width="match_parent"
-                          android:layout_height="wrap_content">
-                <TextView android:text="@string/stat"
-                          android:textSize="16sp"
-                          android:textColor="?android:attr/textColorPrimary"
-                          android:ellipsize="marquee"
-                          android:layout_width="wrap_content"
-                          android:layout_height="wrap_content"/>
-                <TextView android:id="@+id/connection_test"
-                          android:gravity="end"
-                          android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary"
-                          android:layout_width="0dp"
-                          android:layout_height="wrap_content"
-                          android:layout_weight="1"/>
-            </LinearLayout>
-            <android.support.v7.widget.GridLayout android:layout_width="match_parent"
-                                                  android:layout_height="wrap_content"
-                                                  android:paddingEnd="72dip"
-                                                  app:columnCount="4">
-                <TextView app:layout_column="0" style="@style/TextAppearance.AppCompat.Body2"
-                          android:ellipsize="marquee" android:text="@string/sent"
-                          android:layout_width="wrap_content" android:layout_height="wrap_content"
-                          android:layout_marginEnd="24dp"
-                          android:gravity="end"/>
-                <TextView app:layout_column="1" android:id="@+id/tx" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
-                          android:layout_width="0dp" android:layout_height="wrap_content"
-                          app:layout_columnWeight="1" app:layout_gravity="fill_horizontal"/>
-                <TextView app:layout_column="2" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary"
-                          android:ellipsize="marquee" android:text="▲"
-                          android:layout_width="wrap_content" android:layout_height="wrap_content"/>
-                <TextView app:layout_column="3" android:id="@+id/txRate" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
-                          android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
-                          app:layout_gravity="fill_horizontal" android:gravity="end"/>
-                <TextView app:layout_row="1" app:layout_column="0" style="@style/TextAppearance.AppCompat.Body2"
-                          android:layout_width="wrap_content" android:layout_height="wrap_content"
-                          android:layout_marginEnd="24dp"
-                          android:gravity="end"
-                          android:ellipsize="marquee" android:text="@string/received"/>
-                <TextView app:layout_row="1" app:layout_column="1" android:id="@+id/rx" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
-                          android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
-                          app:layout_gravity="fill_horizontal" />
-                <TextView app:layout_row="1" app:layout_column="2" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
-                          android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="▼"/>
-                <TextView app:layout_row="1" app:layout_column="3" android:id="@+id/rxRate" android:textSize="14sp"
-                          android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
-                          android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
-                          app:layout_gravity="fill_horizontal" android:gravity="end"/>
-            </android.support.v7.widget.GridLayout>
+    <FrameLayout android:id="@+id/content"
+                 android:layout_width="match_parent"
+                 android:layout_height="match_parent"
+                 android:layout_above="@+id/stat"/>
+    <LinearLayout android:id="@+id/stat"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:elevation="4dp"
+                  android:paddingStart="16dip"
+                  android:paddingEnd="16dip"
+                  android:paddingTop="16dip"
+                  android:paddingBottom="16dip"
+                  android:focusable="true"
+                  android:background="@drawable/background_stat"
+                  android:orientation="vertical"
+                  android:nextFocusRight="@+id/fab"
+                  android:layout_alignParentBottom="true">
+        <LinearLayout android:layout_width="match_parent"
+                      android:layout_height="wrap_content">
+            <TextView android:text="@string/stat"
+                      android:textSize="16sp"
+                      android:textColor="?android:attr/textColorPrimary"
+                      android:ellipsize="marquee"
+                      android:layout_width="wrap_content"
+                      android:layout_height="wrap_content"/>
+            <TextView android:id="@+id/connection_test"
+                      android:gravity="end"
+                      android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary"
+                      android:layout_width="0dp"
+                      android:layout_height="wrap_content"
+                      android:layout_weight="1"/>
         </LinearLayout>
+        <android.support.v7.widget.GridLayout android:layout_width="match_parent"
+                                              android:layout_height="wrap_content"
+                                              android:paddingEnd="72dip"
+                                              app:columnCount="4">
+            <TextView app:layout_column="0" style="@style/TextAppearance.AppCompat.Body2"
+                      android:ellipsize="marquee" android:text="@string/sent"
+                      android:layout_width="wrap_content" android:layout_height="wrap_content"
+                      android:layout_marginEnd="24dp"
+                      android:gravity="end"/>
+            <TextView app:layout_column="1" android:id="@+id/tx" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
+                      android:layout_width="0dp" android:layout_height="wrap_content"
+                      app:layout_columnWeight="1" app:layout_gravity="fill_horizontal"/>
+            <TextView app:layout_column="2" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary"
+                      android:ellipsize="marquee" android:text="▲"
+                      android:layout_width="wrap_content" android:layout_height="wrap_content"/>
+            <TextView app:layout_column="3" android:id="@+id/txRate" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
+                      android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
+                      app:layout_gravity="fill_horizontal" android:gravity="end"/>
+            <TextView app:layout_row="1" app:layout_column="0" style="@style/TextAppearance.AppCompat.Body2"
+                      android:layout_width="wrap_content" android:layout_height="wrap_content"
+                      android:layout_marginEnd="24dp"
+                      android:gravity="end"
+                      android:ellipsize="marquee" android:text="@string/received"/>
+            <TextView app:layout_row="1" app:layout_column="1" android:id="@+id/rx" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
+                      android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
+                      app:layout_gravity="fill_horizontal" />
+            <TextView app:layout_row="1" app:layout_column="2" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
+                      android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="▼"/>
+            <TextView app:layout_row="1" app:layout_column="3" android:id="@+id/rxRate" android:textSize="14sp"
+                      android:textColor="?android:attr/textColorSecondary" android:ellipsize="marquee"
+                      android:layout_width="0dp" android:layout_height="wrap_content" app:layout_columnWeight="1"
+                      app:layout_gravity="fill_horizontal" android:gravity="end"/>
+        </android.support.v7.widget.GridLayout>
     </LinearLayout>
-    <fragment android:name="com.github.shadowsocks.ShadowsocksSettings"
-              android:id="@android:id/content" android:layout_below="@+id/title_bar"
-              android:layout_width="match_parent" android:layout_height="match_parent"/>
-    <com.github.jorgecastilloprz.FABProgressCircle android:id="@+id/fabProgressCircle" app:reusable="true"
+    <com.github.jorgecastilloprz.FABProgressCircle android:id="@+id/fabProgressCircle"
+                                                   app:reusable="true"
                                                    android:layout_width="wrap_content"
-                                                   android:layout_height="wrap_content" android:elevation="6dp"
-                                                   android:layout_alignBottom="@+id/title_bar"
+                                                   android:layout_height="wrap_content"
+                                                   android:elevation="6dp"
+                                                   android:layout_alignTop="@+id/stat"
                                                    android:layout_alignParentEnd="true"
                                                    android:layout_marginEnd="16dp"
-                                                   android:layout_marginBottom="@dimen/fab_margin_bottom">
+                                                   android:layout_marginTop="@dimen/fab_margin_top">
         <android.support.design.widget.FloatingActionButton android:id="@+id/fab" android:layout_width="wrap_content"
                                                             android:layout_height="wrap_content"
                                                             app:backgroundTint="@color/material_blue_grey_700"
diff --git a/src/main/res/layout/layout_profile_config.xml b/src/main/res/layout/layout_profile_config.xml
new file mode 100644
index 00000000..62b2ba58
--- /dev/null
+++ b/src/main/res/layout/layout_profile_config.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+    <include layout="@layout/toolbar_light_dark" />
+    <fragment android:id="@+id/content"
+              class="com.github.shadowsocks.ProfileConfigFragment"
+              android:layout_width="match_parent"
+              android:layout_height="0dp"
+              android:layout_weight="1"/>
+</LinearLayout>
diff --git a/src/main/res/layout/layout_profiles.xml b/src/main/res/layout/layout_profiles.xml
index ac543fe5..e8a868b6 100644
--- a/src/main/res/layout/layout_profiles.xml
+++ b/src/main/res/layout/layout_profiles.xml
@@ -1,68 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
               android:layout_width="match_parent"
-              android:orientation="vertical"
-              android:layout_height="match_parent">
-    <include layout="@layout/toolbar_light_dark" />
-    <android.support.design.widget.CoordinatorLayout android:layout_width="match_parent"
-                                                     android:layout_height="0dp" android:layout_weight="1">
-        <android.support.v7.widget.RecyclerView android:id="@+id/profilesList"
-                                                android:layout_width="match_parent"
-                                                android:layout_height="match_parent"/>
-        <com.github.clans.fab.FloatingActionMenu
-            android:id="@+id/menu"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_gravity="bottom|end"
-            android:layout_marginBottom="16dp"
-            android:layout_marginEnd="16dp"
-            app:menu_colorNormal="@color/material_primary_500"
-            app:menu_colorPressed="@color/material_primary_700"
-            app:fab_colorRipple="@android:color/white"
-            app:layout_behavior="com.github.shadowsocks.widget.FloatingActionMenuBehavior">
-
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/fab_manual_add"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_colorNormal="@color/material_primary_500"
-                app:fab_colorPressed="@color/material_primary_700"
-                app:fab_colorRipple="@android:color/white"
-                app:fab_size="mini"
-                app:fab_label="@string/add_profile_methods_manual_settings"
-                />
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/fab_qrcode_add"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_colorNormal="@color/material_primary_500"
-                app:fab_colorPressed="@color/material_primary_700"
-                app:fab_colorRipple="@android:color/white"
-                app:fab_size="mini"
-                app:fab_label="@string/add_profile_methods_scan_qr_code"
-                />
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/fab_nfc_add"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_colorNormal="@color/material_primary_500"
-                app:fab_colorPressed="@color/material_primary_700"
-                app:fab_colorRipple="@android:color/white"
-                app:fab_size="mini"
-                app:fab_label="NFC"
-                />
-            <com.github.clans.fab.FloatingActionButton
-                android:id="@+id/fab_import_add"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                app:fab_colorNormal="@color/material_primary_500"
-                app:fab_colorPressed="@color/material_primary_700"
-                app:fab_colorRipple="@android:color/white"
-                app:fab_size="mini"
-                app:fab_label="@string/action_import"
-                />
-        </com.github.clans.fab.FloatingActionMenu>
-    </android.support.design.widget.CoordinatorLayout>
-
+              android:layout_height="match_parent"
+              android:orientation="vertical">
+    <include layout="@layout/toolbar_light_dark"/>
+    <android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+                                            android:id="@+id/profilesList"
+                                            android:layout_width="match_parent"
+                                            android:layout_height="0dp"
+                                            android:layout_weight="1"
+                                            android:paddingBottom="8dp"/>
 </LinearLayout>
diff --git a/src/main/res/layout/layout_profiles_item.xml b/src/main/res/layout/layout_profiles_item.xml
index d1f856b3..45447659 100644
--- a/src/main/res/layout/layout_profiles_item.xml
+++ b/src/main/res/layout/layout_profiles_item.xml
@@ -1,37 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Based on: https://github.com/android/platform_frameworks_base/blob/master/core/res/res/layout/select_dialog_singlechoice_material.xml -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:app="http://schemas.android.com/apk/res-auto"
-              android:layout_width="match_parent"
-              android:layout_height="wrap_content"
-              android:id="@+id/container"
-              android:background="?android:attr/selectableItemBackground"
-              android:paddingStart="20dp"
-              android:paddingEnd="?attr/dialogPreferredPadding"
-              android:focusable="true"
-              android:nextFocusRight="@+id/share">
-    <CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
-                     android:id="@android:id/text1"
-                     android:layout_width="0dp"
-                     android:layout_height="wrap_content"
-                     android:layout_gravity="center_vertical"
-                     android:layout_weight="1"
-                     android:minHeight="?android:attr/listPreferredItemHeightSmall"
-                     android:textAppearance="?android:attr/textAppearanceMedium"
-                     android:textColor="?android:attr/textColorAlertDialogListItem"
-                     android:gravity="center_vertical"
-                     android:drawableStart="?android:attr/listChoiceIndicatorSingle"
-                     android:drawablePadding="20dp"
-                     android:maxLines="4"
-                     android:scrollHorizontally="false" />
-    <ImageView android:id="@+id/share"
-               android:layout_width="wrap_content"
-               android:layout_height="wrap_content"
-               android:padding="5dp"
-               android:layout_gravity="center_vertical"
-               app:srcCompat="@drawable/ic_social_share"
-               android:background="?attr/selectableItemBackgroundBorderless"
-               android:contentDescription="@string/share"
-               android:focusable="true"
-               android:nextFocusLeft="@+id/container"/>
-</LinearLayout>
+<!-- Based on: https://github.com/android/platform_frameworks_base/blob/505e3ab/core/res/res/layout/simple_list_item_2.xml -->
+<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+                                    xmlns:app="http://schemas.android.com/apk/res-auto"
+                                    android:layout_width="match_parent"
+                                    android:layout_height="wrap_content"
+                                    android:background="?android:attr/selectableItemBackground"
+                                    android:focusable="true"
+                                    android:nextFocusRight="@+id/edit"
+                                    android:layout_marginTop="8dp"
+                                    android:layout_marginStart="8dp"
+                                    android:layout_marginEnd="8dp">
+    <LinearLayout android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:orientation="vertical"
+                  android:layout_margin="8dp">
+        <LinearLayout android:layout_width="match_parent"
+                      android:layout_height="wrap_content"
+                      android:id="@+id/container">
+            <TextView android:id="@android:id/text1"
+                      android:layout_width="0dp"
+                      android:layout_height="wrap_content"
+                      android:layout_gravity="center_vertical"
+                      android:layout_weight="1"
+                      android:textAppearance="?android:attr/textAppearanceLarge"
+                      android:textColor="?android:attr/textColorPrimary"
+                      android:gravity="center_vertical"
+                      android:maxLines="2"
+                      android:ellipsize="end"/>
+            <ImageView android:id="@+id/edit"
+                       android:layout_width="wrap_content"
+                       android:layout_height="wrap_content"
+                       android:padding="4dp"
+                       android:layout_gravity="top"
+                       app:srcCompat="@drawable/ic_image_edit"
+                       android:background="?attr/selectableItemBackgroundBorderless"
+                       android:contentDescription="Edit"
+                       android:focusable="true"
+                       android:nextFocusLeft="@+id/container"/>
+        </LinearLayout>
+        <TextView android:id="@android:id/text2"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:textAppearance="?android:attr/textAppearanceMedium"
+                  android:textColor="?android:attr/textColorSecondary"/>
+    </LinearLayout>
+</android.support.v7.widget.CardView>
diff --git a/src/main/res/menu/profile_config_menu.xml b/src/main/res/menu/profile_config_menu.xml
new file mode 100644
index 00000000..2b4a8dea
--- /dev/null
+++ b/src/main/res/menu/profile_config_menu.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item android:title="@string/share"
+          android:icon="@drawable/abc_ic_menu_share_mtrl_alpha"
+          android:alphabeticShortcut="s"
+          android:numericShortcut="1"
+          app:showAsAction="always">
+        <menu>
+            <item android:id="@+id/action_qr_code_nfc"
+                  android:title="QR code/NFC"
+                  android:alphabeticShortcut="q"
+                  android:numericShortcut="1"/>
+            <item android:id="@+id/action_export"
+                  android:title="@string/action_export"
+                  android:alphabeticShortcut="e"
+                  android:numericShortcut="2"/>
+        </menu>
+    </item>
+    <item android:id="@+id/action_delete"
+          android:title="Delete"
+          android:icon="@drawable/ic_action_delete"
+          android:alphabeticShortcut="d"
+          android:numericShortcut="2"
+          app:showAsAction="always"/>
+    <item android:id="@+id/action_apply"
+          android:title="Apply"
+          android:icon="@drawable/ic_action_done"
+          android:alphabeticShortcut="a"
+          android:numericShortcut="3"
+          app:showAsAction="always"/>
+</menu>
diff --git a/src/main/res/menu/profile_manager_menu.xml b/src/main/res/menu/profile_manager_menu.xml
index e087585f..e5fae051 100644
--- a/src/main/res/menu/profile_manager_menu.xml
+++ b/src/main/res/menu/profile_manager_menu.xml
@@ -1,6 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
       xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item android:title="@string/add_profile"
+          android:icon="@drawable/ic_content_add"
+          android:alphabeticShortcut="a"
+          android:numericShortcut="0"
+          app:showAsAction="always">
+        <menu>
+            <item android:id="@+id/action_scan_qr_code"
+                  android:title="@string/add_profile_methods_scan_qr_code"
+                  android:alphabeticShortcut="s"
+                  android:numericShortcut="1"/>
+            <item android:id="@+id/action_import"
+                  android:title="@string/action_import"
+                  android:alphabeticShortcut="i"
+                  android:numericShortcut="2"/>
+            <item android:id="@+id/action_manual_settings"
+                  android:title="@string/add_profile_methods_manual_settings"
+                  android:alphabeticShortcut="m"
+                  android:numericShortcut="3"/>
+        </menu>
+    </item>
     <item android:id="@+id/action_export"
           android:title="@string/action_export"
           android:alphabeticShortcut="e"
diff --git a/src/main/res/values-v21/dimen.xml b/src/main/res/values-v21/dimen.xml
index 4c95daeb..605379c3 100644
--- a/src/main/res/values-v21/dimen.xml
+++ b/src/main/res/values-v21/dimen.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <dimen name="fab_margin_bottom">-28dp</dimen>
+    <dimen name="fab_margin_top">-28dp</dimen>
 </resources>
diff --git a/src/main/res/values/colors.xml b/src/main/res/values/colors.xml
index afb029ba..d0374a8a 100644
--- a/src/main/res/values/colors.xml
+++ b/src/main/res/values/colors.xml
@@ -3,12 +3,13 @@
 <resources>
 
   <color name="material_green_700">#388E3C</color>
+  <color name="material_green_a700">#00C853</color>
   <color name="material_blue_grey_300">#90A4AE</color>
   <color name="material_blue_grey_500">#607D8B</color>
   <color name="material_blue_grey_700">#455A64</color>
   <color name="material_primary_300">@color/material_blue_grey_300</color>
   <color name="material_primary_500">@color/material_blue_grey_500</color>
   <color name="material_primary_700">@color/material_blue_grey_700</color>
-  <color name="material_accent_200">@color/material_blue_grey_500</color>
+  <color name="material_accent_200">@color/material_green_a700</color>
 
 </resources>
diff --git a/src/main/res/values/dimen.xml b/src/main/res/values/dimen.xml
index f8e782e7..c11d2a7a 100644
--- a/src/main/res/values/dimen.xml
+++ b/src/main/res/values/dimen.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <!-- TODO: Remove when this issue is fixed: https://github.com/JorgeCastilloPrz/FABProgressCircle/issues/19 -->
-    <dimen name="fab_margin_bottom">-44dp</dimen>
+    <dimen name="fab_margin_top">-44dp</dimen>
 </resources>
diff --git a/src/main/res/values/styles.xml b/src/main/res/values/styles.xml
index e9d26c2d..34c54e0a 100644
--- a/src/main/res/values/styles.xml
+++ b/src/main/res/values/styles.xml
@@ -6,11 +6,11 @@
         <item name="android:textSize">24sp</item>
     </style>
 
-    <style name="Theme.MaterialBase" parent="Theme.AppCompat.Light.NoActionBar">
+    <style name="Theme.MaterialBase" parent="MaterialDrawerTheme.Light.DarkToolbar">
         <!--suppress NewApi -->
         <item name="android:navigationBarColor">@color/material_primary_700</item>
         <item name="colorAccent">@color/material_primary_500</item>
-        <item name="colorButtonNormal">@color/material_primary_500</item>
+        <item name="colorButtonNormal">@color/material_accent_200</item>
         <item name="colorPrimary">@color/material_primary_500</item>
         <item name="colorPrimaryDark">@color/material_primary_700</item>
         <item name="preferenceTheme">@style/Theme.Material.PreferenceThemeOverlay</item>
diff --git a/src/main/res/xml/pref_global.xml b/src/main/res/xml/pref_global.xml
new file mode 100644
index 00000000..81fb6ae8
--- /dev/null
+++ b/src/main/res/xml/pref_global.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <SwitchPreference android:key="isAutoConnect"
+                      android:persistent="false"
+                      android:summary="@string/auto_connect_summary"
+                      android:title="@string/auto_connect"/>
+    <SwitchPreference android:key="tcp_fastopen"
+                      android:summary="@string/tcp_fastopen_summary"
+                      android:title="TCP Fast Open"/>
+    <SwitchPreference android:key="isNAT"
+                      android:title="@string/nat"
+                      android:summary="@string/nat_summary"/>
+    <Preference android:key="recovery"
+                android:title="@string/recovery"
+                android:summary="@string/recovery_summary"/>
+</PreferenceScreen>
diff --git a/src/main/res/xml/pref_all.xml b/src/main/res/xml/pref_profile.xml
similarity index 69%
rename from src/main/res/xml/pref_all.xml
rename to src/main/res/xml/pref_profile.xml
index 0efe9261..6599ca4b 100644
--- a/src/main/res/xml/pref_all.xml
+++ b/src/main/res/xml/pref_profile.xml
@@ -7,44 +7,37 @@
 
         <be.mygod.preference.EditTextPreference
                 android:key="profileName"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/profile_name"/>
         <be.mygod.preference.EditTextPreference
                 android:key="proxy"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/proxy"/>
         <be.mygod.preference.NumberPickerPreference
                 app:min="1"
                 app:max="65535"
                 android:key="remotePortNum"
-                android:persistent="false"
                 android:summary="%d"
                 android:title="@string/remote_port"/>
         <be.mygod.preference.NumberPickerPreference
                 app:min="1025"
                 app:max="65535"
                 android:key="localPortNum"
-                android:persistent="false"
                 android:summary="%d"
                 android:title="@string/port"/>
         <be.mygod.preference.EditTextPreference
                 android:inputType="textPassword"
                 android:key="sitekey"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/sitekey"/>
         <DropDownPreference
                 android:key="encMethod"
-                android:persistent="false"
                 android:entries="@array/enc_method_entry"
                 android:entryValues="@array/enc_method_value"
                 android:summary="%s"
                 android:title="@string/enc_method"/>
         <SwitchPreference
                 android:key="isAuth"
-                android:persistent="false"
                 android:summary="@string/onetime_auth_summary"
                 android:title="@string/onetime_auth"/>
 
@@ -55,7 +48,6 @@
 
         <DropDownPreference
                 android:key="route"
-                android:persistent="false"
                 android:entries="@array/route_entry"
                 android:entryValues="@array/route_value"
                 android:summary="%s"
@@ -63,20 +55,17 @@
         <be.mygod.preference.EditTextPreference
                 android:key="remoteDns"
                 android:title="@string/remote_dns"
-                android:summary="@string/remote_dns_summary"/>
+                android:summary="%s"/>
         <SwitchPreference
                 android:key="isIpv6"
-                android:persistent="false"
                 android:summary="@string/ipv6_summary"
                 android:title="@string/ipv6"/>
         <SwitchPreference
                 android:key="isProxyApps"
-                android:persistent="false"
                 android:summary="@string/proxied_apps_summary"
                 android:title="@string/proxied_apps"/>
         <SwitchPreference
                 android:key="isUdpDns"
-                android:persistent="false"
                 android:summary="@string/udp_dns_summary"
                 android:title="@string/udp_dns"/>
 
@@ -87,7 +76,6 @@
 
         <SwitchPreference
                 android:key="kcp"
-                android:persistent="false"
                 android:summary="@string/kcp_summary"
                 android:title="@string/kcp"/>
 
@@ -95,41 +83,14 @@
                 app:min="1"
                 app:max="65535"
                 android:key="kcpPort"
-                android:persistent="false"
                 android:summary="@string/kcp_port_summary"
                 android:title="@string/kcp_port"/>
 
         <be.mygod.preference.EditTextPreference
                 android:key="kcpcli"
-                android:persistent="false"
                 android:summary="%s"
                 android:title="@string/kcpcli"/>
 
     </be.mygod.preference.PreferenceCategory>
 
-    <be.mygod.preference.PreferenceCategory android:title="@string/misc_cat">
-
-        <SwitchPreference
-                android:key="isAutoConnect"
-                android:persistent="false"
-                android:summary="@string/auto_connect_summary"
-                android:title="@string/auto_connect"/>
-
-        <SwitchPreference
-                android:key="tcp_fastopen"
-                android:summary="@string/tcp_fastopen_summary"
-                android:title="TCP Fast Open"/>
-
-        <SwitchPreference android:key="isNAT"
-                          android:title="@string/nat"
-                          android:summary="@string/nat_summary"/>
-
-        <Preference android:key="recovery" android:title="@string/recovery"
-            android:summary="@string/recovery_summary"/>
-
-        <Preference android:key="about" android:title="@string/about"/>
-
-    </be.mygod.preference.PreferenceCategory>
-
-
 </PreferenceScreen>
diff --git a/src/main/scala/com/github/shadowsocks/AppManager.scala b/src/main/scala/com/github/shadowsocks/AppManager.scala
index 810e21d7..3aa828c9 100644
--- a/src/main/scala/com/github/shadowsocks/AppManager.scala
+++ b/src/main/scala/com/github/shadowsocks/AppManager.scala
@@ -98,10 +98,7 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
         proxiedApps.add(item.packageName)
         check.setChecked(true)
       }
-      if (!appsLoading.get) {
-        profile.individual = proxiedApps.mkString("\n")
-        app.profileManager.updateProfile(profile)
-      }
+      if (!appsLoading.get) app.editor.putString(Key.individual, proxiedApps.mkString("\n")).apply()
     }
   }
 
@@ -124,9 +121,9 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
   private var loadingView: View = _
   private val appsLoading = new AtomicBoolean
   private var handler: Handler = _
-  private val profile = app.currentProfile.orNull
 
-  private def initProxiedApps(str: String = profile.individual) = proxiedApps = str.split('\n').to[mutable.HashSet]
+  private def initProxiedApps(str: String = app.settings.getString(Key.individual, null)) =
+    proxiedApps = str.split('\n').to[mutable.HashSet]
 
   override def onDestroy() {
     instance = null
@@ -143,7 +140,7 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
       case R.id.action_apply_all =>
         app.profileManager.getAllProfiles match {
           case Some(profiles) =>
-            val proxiedAppString = profile.individual
+            val proxiedAppString = app.settings.getString(Key.individual, null)
             profiles.foreach(p => {
               p.individual = proxiedAppString
               app.profileManager.updateProfile(p)
@@ -153,8 +150,8 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
         }
         return true
       case R.id.action_export =>
-        val bypass = profile.bypass
-        val proxiedAppString = profile.individual
+        val bypass = app.settings.getBoolean(Key.bypass, false)
+        val proxiedAppString = app.settings.getString(Key.individual, null)
         val clip = ClipData.newPlainText(Key.individual, bypass + "\n" + proxiedAppString)
         clipboard.setPrimaryClip(clip)
         Toast.makeText(this, R.string.action_export_msg, Toast.LENGTH_SHORT).show()
@@ -170,8 +167,7 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
                 val (enabled, apps) = if (i < 0) (proxiedAppString, "")
                   else (proxiedAppString.substring(0, i), proxiedAppString.substring(i + 1))
                 bypassSwitch.setChecked(enabled.toBoolean)
-                profile.individual = apps
-                app.profileManager.updateProfile(profile)
+                app.editor.putString(Key.individual, apps).apply()
                 Toast.makeText(this, R.string.action_import_msg, Toast.LENGTH_SHORT).show()
                 appListView.setVisibility(View.GONE)
                 loadingView.setVisibility(View.VISIBLE)
@@ -194,8 +190,6 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
   protected override def onCreate(savedInstanceState: Bundle) {
     super.onCreate(savedInstanceState)
 
-    if (profile == null) finish()
-
     handler = new Handler()
 
     this.setContentView(R.layout.layout_apps)
@@ -211,23 +205,16 @@ class AppManager extends AppCompatActivity with OnMenuItemClickListener {
     toolbar.inflateMenu(R.menu.app_manager_menu)
     toolbar.setOnMenuItemClickListener(this)
 
-    if (!profile.proxyApps) {
-      profile.proxyApps = true
-      app.profileManager.updateProfile(profile)
-    }
+    if (!app.settings.getBoolean(Key.proxyApps, false)) app.editor.putBoolean(Key.proxyApps, true).apply()
     findViewById(R.id.onSwitch).asInstanceOf[Switch]
       .setOnCheckedChangeListener((_, checked) => {
-        profile.proxyApps = checked
-        app.profileManager.updateProfile(profile)
+        app.editor.putBoolean(Key.proxyApps, checked).apply()
         finish()
       })
 
     bypassSwitch = findViewById(R.id.bypassSwitch).asInstanceOf[Switch]
-    bypassSwitch.setChecked(profile.bypass)
-    bypassSwitch.setOnCheckedChangeListener((_, checked) => {
-      profile.bypass = checked
-      app.profileManager.updateProfile(profile)
-    })
+    bypassSwitch.setChecked(app.settings.getBoolean(Key.bypass, false))
+    bypassSwitch.setOnCheckedChangeListener((_, checked) => app.editor.putBoolean(Key.bypass, checked).apply())
 
     initProxiedApps()
     loadingView = findViewById(R.id.loading)
diff --git a/src/main/scala/com/github/shadowsocks/GlobalConfigFragment.scala b/src/main/scala/com/github/shadowsocks/GlobalConfigFragment.scala
new file mode 100644
index 00000000..6cd64e1c
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/GlobalConfigFragment.scala
@@ -0,0 +1,69 @@
+package com.github.shadowsocks
+
+import android.app.ProgressDialog
+import android.os.{Bundle, Handler, Message}
+import android.support.design.widget.Snackbar
+import android.support.v14.preference.SwitchPreference
+import be.mygod.preference.PreferenceFragment
+import com.github.shadowsocks.ShadowsocksApplication.app
+import com.github.shadowsocks.utils.{Key, TcpFastOpen, Utils}
+
+class GlobalConfigFragment extends PreferenceFragment {
+  private var progressDialog: ProgressDialog = _
+
+  override def onCreatePreferences(bundle: Bundle, key: String) {
+    addPreferencesFromResource(R.xml.pref_global)
+    val switch = findPreference(Key.isAutoConnect).asInstanceOf[SwitchPreference]
+    switch.setOnPreferenceChangeListener((_, value) => {
+      BootReceiver.setEnabled(getActivity, value.asInstanceOf[Boolean])
+      true
+    })
+    if (getPreferenceManager.getSharedPreferences.getBoolean(Key.isAutoConnect, false)) {
+      BootReceiver.setEnabled(getActivity, true)
+      getPreferenceManager.getSharedPreferences.edit.remove(Key.isAutoConnect).apply()
+    }
+    switch.setChecked(BootReceiver.getEnabled(getActivity))
+
+    val tfo = findPreference(Key.tfo).asInstanceOf[SwitchPreference]
+    tfo.setChecked(TcpFastOpen.sendEnabled)
+    tfo.setOnPreferenceChangeListener((_, v) => {
+      val value = v.asInstanceOf[Boolean]
+      val result = TcpFastOpen.enabled(value)
+      if (result != null && result != "Success.")
+        Snackbar.make(getActivity.findViewById(android.R.id.content), result, Snackbar.LENGTH_LONG).show()
+      value == TcpFastOpen.sendEnabled
+    })
+    if (!TcpFastOpen.supported) {
+      tfo.setEnabled(false)
+      tfo.setSummary(getString(R.string.tcp_fastopen_summary_unsupported, java.lang.System.getProperty("os.version")))
+    }
+
+    findPreference("recovery").setOnPreferenceClickListener(_ => {
+      app.track("GlobalConfigFragment", "reset")
+      Utils.stopSsService(getActivity)
+      val h = showProgress(R.string.recovering)
+      Utils.ThrowableFuture {
+        app.copyAssets()
+        h.sendEmptyMessage(0)
+      }
+      true
+    })
+  }
+
+  private def showProgress(msg: Int): Handler = {
+    clearDialog()
+    progressDialog = ProgressDialog.show(getActivity, "", getString(msg), true, false)
+    new Handler {
+      override def handleMessage(msg: Message) {
+        clearDialog()
+      }
+    }
+  }
+
+  def clearDialog() {
+    if (progressDialog != null && progressDialog.isShowing) {
+      if (!getActivity.isDestroyed) progressDialog.dismiss()
+      progressDialog = null
+    }
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/GlobalSettingsFragment.scala b/src/main/scala/com/github/shadowsocks/GlobalSettingsFragment.scala
new file mode 100644
index 00000000..d46c8b68
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/GlobalSettingsFragment.scala
@@ -0,0 +1,14 @@
+package com.github.shadowsocks
+
+import android.os.Bundle
+import android.view.{LayoutInflater, View, ViewGroup}
+
+class GlobalSettingsFragment extends ToolbarFragment {
+  override def onCreateView(inflater: LayoutInflater, container: ViewGroup, savedInstanceState: Bundle): View =
+    inflater.inflate(R.layout.layout_global_settings, container, false)
+
+  override def onViewCreated(view: View, savedInstanceState: Bundle) {
+    super.onViewCreated(view, savedInstanceState)
+    toolbar.setTitle(R.string.settings)
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala b/src/main/scala/com/github/shadowsocks/MainActivity.scala
similarity index 65%
rename from src/main/scala/com/github/shadowsocks/Shadowsocks.scala
rename to src/main/scala/com/github/shadowsocks/MainActivity.scala
index 6d979b90..076a00ac 100644
--- a/src/main/scala/com/github/shadowsocks/Shadowsocks.scala
+++ b/src/main/scala/com/github/shadowsocks/MainActivity.scala
@@ -22,69 +22,58 @@ package com.github.shadowsocks
 
 import java.lang.System.currentTimeMillis
 import java.net.{HttpURLConnection, URL}
-import java.util
-import java.util.{GregorianCalendar, Locale}
+import java.util.Locale
 
+import android.app.Activity
 import android.app.backup.BackupManager
-import android.app.{Activity, ProgressDialog}
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener
 import android.content._
-import android.graphics.Typeface
-import android.net.VpnService
-import android.os._
+import android.net.{Uri, VpnService}
+import android.nfc.{NdefMessage, NfcAdapter}
+import android.os.{Build, Bundle, Handler}
 import android.support.design.widget.{FloatingActionButton, Snackbar}
 import android.support.v4.content.ContextCompat
-import android.support.v7.app.AppCompatActivity
-import android.support.v7.widget.Toolbar
+import android.support.v7.app.AlertDialog
+import android.support.v7.widget.RecyclerView.ViewHolder
+import android.text.TextUtils
 import android.util.Log
-import android.view.{View, ViewGroup}
-import android.widget._
+import android.view.View
+import android.webkit.{WebView, WebViewClient}
+import android.widget.{TextView, Toast}
 import com.github.jorgecastilloprz.FABProgressCircle
 import com.github.shadowsocks.ShadowsocksApplication.app
 import com.github.shadowsocks.aidl.IShadowsocksServiceCallback
-import com.github.shadowsocks.database._
-import com.github.shadowsocks.utils.CloseUtils._
+import com.github.shadowsocks.database.Profile
+import com.github.shadowsocks.utils.CloseUtils.autoDisconnect
 import com.github.shadowsocks.utils._
-import com.google.android.gms.ads.{AdRequest, AdSize, AdView}
+import com.google.android.gms.ads.AdView
+import com.mikepenz.materialdrawer.model.interfaces.IDrawerItem
+import com.mikepenz.materialdrawer.model.{PrimaryDrawerItem, SecondaryDrawerItem}
+import com.mikepenz.materialdrawer.{Drawer, DrawerBuilder}
 
-import scala.util.Random
-
-object Typefaces {
-  def get(c: Context, assetPath: String): Typeface = {
-    cache synchronized {
-      if (!cache.containsKey(assetPath)) {
-        try {
-          cache.put(assetPath, Typeface.createFromAsset(c.getAssets, assetPath))
-        } catch {
-          case e: Exception =>
-            Log.e(TAG, "Could not get typeface '" + assetPath + "' because " + e.getMessage)
-            app.track(e)
-            return null
-        }
-      }
-      return cache.get(assetPath)
-    }
-  }
-
-  private final val TAG = "Typefaces"
-  private final val cache = new util.Hashtable[String, Typeface]
-}
-
-object Shadowsocks {
-  // Constants
-  private final val TAG = "Shadowsocks"
+object MainActivity {
+  private final val TAG = "MainActivity"
   private final val REQUEST_CONNECT = 1
+
+  private final val DRAWER_PROFILES = 0L
+  // sticky drawer items have negative ids
+  private final val DRAWER_GLOBAL_SETTINGS = -1L
+  private final val DRAWER_ABOUT = -2L
 }
 
-class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
-  import Shadowsocks._
+class MainActivity extends Activity with ServiceBoundContext with Drawer.OnDrawerItemClickListener
+  with OnSharedPreferenceChangeListener {
+  import MainActivity._
 
   // Variables
   var serviceStarted: Boolean = _
   var fab: FloatingActionButton = _
   var fabProgressCircle: FABProgressCircle = _
-  var progressDialog: ProgressDialog = _
   var state = State.STOPPED
   var currentProfile = new Profile
+  var drawer: Drawer = _
+  private lazy val profilesFragment = new ProfilesFragment()
+  private lazy val globalSettingsFragment = new GlobalSettingsFragment()
 
   // Services
   private val callback = new IShadowsocksServiceCallback.Stub {
@@ -96,8 +85,7 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
             fab.setImageResource(R.drawable.ic_start_busy)
             fab.setEnabled(false)
             fabProgressCircle.show()
-            preferences.setEnabled(false)
-            stat.setVisibility(View.GONE)
+            //stat.setVisibility(View.GONE)
           case State.CONNECTED =>
             fab.setBackgroundTintList(greenTint)
             if (state == State.CONNECTING) {
@@ -107,7 +95,6 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
             }
             fab.setEnabled(true)
             changeSwitch(checked = true)
-            preferences.setEnabled(false)
             stat.setVisibility(View.VISIBLE)
             if (app.isNatEnabled) connectionTestText.setVisibility(View.GONE) else {
               connectionTestText.setVisibility(View.VISIBLE)
@@ -121,20 +108,17 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
             if (m != null) {
               val snackbar = Snackbar.make(findViewById(android.R.id.content),
                 getString(R.string.vpn_error).formatLocal(Locale.ENGLISH, m), Snackbar.LENGTH_LONG)
-              if (m == getString(R.string.nat_no_root)) snackbar.setAction(R.string.switch_to_vpn,
-                (_ => preferences.natSwitch.setChecked(false)): View.OnClickListener)
+              if (m == getString(R.string.nat_no_root)) addDisableNatToSnackbar(snackbar)
               snackbar.show()
               Log.e(TAG, "Error to start VPN service: " + m)
             }
-            preferences.setEnabled(true)
-            stat.setVisibility(View.GONE)
+            //stat.setVisibility(View.GONE)
           case State.STOPPING =>
             fab.setBackgroundTintList(greyTint)
             fab.setImageResource(R.drawable.ic_start_busy)
             fab.setEnabled(false)
             if (state == State.CONNECTED) fabProgressCircle.show()  // ignore for stopped
-            preferences.setEnabled(false)
-            stat.setVisibility(View.GONE)
+            //stat.setVisibility(View.GONE)
         }
         state = s
       })
@@ -159,11 +143,14 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
     updateState()
     if (Build.VERSION.SDK_INT >= 21 && app.isNatEnabled) {
       val snackbar = Snackbar.make(findViewById(android.R.id.content), R.string.nat_deprecated, Snackbar.LENGTH_LONG)
-      snackbar.setAction(R.string.switch_to_vpn, (_ => preferences.natSwitch.setChecked(false)): View.OnClickListener)
+      addDisableNatToSnackbar(snackbar)
       snackbar.show()
     }
   }
 
+  private def addDisableNatToSnackbar(snackbar: Snackbar) = snackbar.setAction(R.string.switch_to_vpn, (_ =>
+    if (state == State.STOPPED) app.editor.putBoolean(Key.isNAT, false)): View.OnClickListener)
+
   override def onServiceDisconnected() {
     if (fab != null) fab.setEnabled(false)
   }
@@ -184,10 +171,13 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
   private lazy val greyTint = ContextCompat.getColorStateList(this, R.color.material_blue_grey_700)
   private lazy val greenTint = ContextCompat.getColorStateList(this, R.color.material_green_700)
   private var adView: AdView = _
-  private lazy val preferences =
-    getFragmentManager.findFragmentById(android.R.id.content).asInstanceOf[ShadowsocksSettings]
 
   val handler = new Handler()
+  private val connectedListener: BroadcastReceiver = (_, _) =>
+    if (app.isNatEnabled) connectionTestText.setVisibility(View.GONE) else {
+      connectionTestText.setVisibility(View.VISIBLE)
+      connectionTestText.setText(getString(R.string.connection_test_pending))
+    }
 
   private def changeSwitch(checked: Boolean) {
     serviceStarted = checked
@@ -198,21 +188,6 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
     }
   }
 
-  private def showProgress(msg: Int): Handler = {
-    clearDialog()
-    progressDialog = ProgressDialog.show(this, "", getString(msg), true, false)
-    new Handler {
-      override def handleMessage(msg: Message) {
-        clearDialog()
-      }
-    }
-  }
-
-  def cancelStart() {
-    clearDialog()
-    changeSwitch(checked = false)
-  }
-
   def prepareStartService() {
     Utils.ThrowableFuture {
       if (app.isNatEnabled) serviceLoad() else {
@@ -227,27 +202,30 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
   }
 
   override def onCreate(savedInstanceState: Bundle) {
-
     super.onCreate(savedInstanceState)
     setContentView(R.layout.layout_main)
-    // Initialize Toolbar
-    val toolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
-    toolbar.setTitle("shadowsocks") // non-translatable logo
-    toolbar.setTitleTextAppearance(toolbar.getContext, R.style.Toolbar_Logo)
-    val field = classOf[Toolbar].getDeclaredField("mTitleTextView")
-    field.setAccessible(true)
-    val title = field.get(toolbar).asInstanceOf[TextView]
-    title.setFocusable(true)
-    title.setGravity(0x10)
-    title.getLayoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT
-    title.setOnClickListener(_ => startActivity(new Intent(this, classOf[ProfileManagerActivity])))
-    val typedArray = obtainStyledAttributes(Array(R.attr.selectableItemBackgroundBorderless))
-    title.setBackgroundResource(typedArray.getResourceId(0, 0))
-    typedArray.recycle()
-    val tf = Typefaces.get(this, "fonts/Iceland.ttf")
-    if (tf != null) title.setTypeface(tf)
-    title.setCompoundDrawablesWithIntrinsicBounds(0, 0, R.drawable.ic_arrow_drop_down, 0)
-
+    drawer = new DrawerBuilder()
+      .withActivity(this)
+      // TODO: .withHeader(R.drawable.some_header)
+      .addDrawerItems(
+        new PrimaryDrawerItem()
+          .withIdentifier(DRAWER_PROFILES)
+          .withName(R.string.profiles)
+        // TODO: withIcons
+      )
+      .addStickyDrawerItems(
+        new SecondaryDrawerItem()
+          .withIdentifier(DRAWER_GLOBAL_SETTINGS)
+          .withName(R.string.settings),
+        new SecondaryDrawerItem()
+          .withIdentifier(DRAWER_ABOUT)
+          .withName(R.string.about)
+          .withSelectable(false)
+      )
+      .withOnDrawerItemClickListener(this)
+      .withActionBarDrawerToggle(true)
+      .build()
+    if (savedInstanceState == null) displayFragment(profilesFragment)
     stat = findViewById(R.id.stat)
     connectionTestText = findViewById(R.id.connection_test).asInstanceOf[TextView]
     txText = findViewById(R.id.tx).asInstanceOf[TextView]
@@ -297,8 +275,8 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
     fab = findViewById(R.id.fab).asInstanceOf[FloatingActionButton]
     fabProgressCircle = findViewById(R.id.fabProgressCircle).asInstanceOf[FABProgressCircle]
     fab.setOnClickListener(_ => if (serviceStarted) serviceStop()
-      else if (bgService != null) prepareStartService()
-      else changeSwitch(checked = false))
+    else if (bgService != null) prepareStartService()
+    else changeSwitch(checked = false))
     fab.setOnLongClickListener((v: View) => {
       Utils.positionToast(Toast.makeText(this, if (serviceStarted) R.string.stop else R.string.connect,
         Toast.LENGTH_SHORT), fab, getWindow, 0, Utils.dpToPx(this, 8)).show()
@@ -307,6 +285,81 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
     updateTraffic(0, 0, 0, 0)
 
     handler.post(attachServiceCallback)
+    app.settings.registerOnSharedPreferenceChangeListener(this)
+    registerReceiver(connectedListener, new IntentFilter(Action.CONNECTED))
+
+    val intent = getIntent
+    if (intent != null) handleShareIntent(intent)
+  }
+
+  override def onNewIntent(intent: Intent) {
+    super.onNewIntent(intent)
+    handleShareIntent(intent)
+  }
+
+  def handleShareIntent(intent: Intent) {
+    val sharedStr = intent.getAction match {
+      case Intent.ACTION_VIEW => intent.getData.toString
+      case NfcAdapter.ACTION_NDEF_DISCOVERED =>
+        val rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES)
+        if (rawMsgs != null && rawMsgs.nonEmpty)
+          new String(rawMsgs(0).asInstanceOf[NdefMessage].getRecords()(0).getPayload)
+        else null
+      case _ => null
+    }
+    if (TextUtils.isEmpty(sharedStr)) return
+    val profiles = Parser.findAll(sharedStr).toList
+    if (profiles.isEmpty) {
+      // TODO: show error msg
+      return
+    }
+    val dialog = new AlertDialog.Builder(this)
+      .setTitle(R.string.add_profile_dialog)
+      .setPositiveButton(android.R.string.yes, ((_, _) =>
+        profiles.foreach(app.profileManager.createProfile)): DialogInterface.OnClickListener)
+      .setNegativeButton(android.R.string.no, null)
+      .setMessage(profiles.mkString("\n"))
+      .create()
+    dialog.show()
+  }
+
+  def onSharedPreferenceChanged(pref: SharedPreferences, key: String): Unit = key match {
+    case Key.isNAT => handler.post(() => {
+      detachService()
+      attachServiceCallback()
+    })
+    case _ =>
+  }
+
+  private def displayFragment(fragment: ToolbarFragment) {
+    getFragmentManager.beginTransaction().replace(R.id.content, fragment).commitAllowingStateLoss()
+    drawer.closeDrawer()
+  }
+
+  override def onItemClick(view: View, position: Int, drawerItem: IDrawerItem[_, _ <: ViewHolder]): Boolean = {
+    drawerItem.getIdentifier match {
+      case DRAWER_PROFILES => displayFragment(profilesFragment)
+      case DRAWER_GLOBAL_SETTINGS => displayFragment(globalSettingsFragment)
+      case DRAWER_ABOUT =>
+        app.track(TAG, "about")
+        val web = new WebView(this)
+        web.loadUrl("file:///android_asset/pages/about.html")
+        web.setWebViewClient(new WebViewClient() {
+          override def shouldOverrideUrlLoading(view: WebView, url: String): Boolean = {
+            try startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url))) catch {
+              case _: android.content.ActivityNotFoundException => // Ignore
+            }
+            true
+          }
+        })
+        new AlertDialog.Builder(this)
+          .setTitle(getString(R.string.about_title).formatLocal(Locale.ENGLISH, BuildConfig.VERSION_NAME))
+          .setNegativeButton(getString(android.R.string.ok), null)
+          .setView(web)
+          .create()
+          .show()
+    }
+    true  // unexpected cases will throw exception
   }
 
   private def hideCircle() {
@@ -317,97 +370,44 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
     }
   }
 
-  private def updateState(resetConnectionTest: Boolean = true) {
+  private def updateState() {
     if (bgService != null) {
       bgService.getState match {
         case State.CONNECTING =>
           fab.setBackgroundTintList(greyTint)
           serviceStarted = false
           fab.setImageResource(R.drawable.ic_start_busy)
-          preferences.setEnabled(false)
           fabProgressCircle.show()
-          stat.setVisibility(View.GONE)
+          //stat.setVisibility(View.GONE)
         case State.CONNECTED =>
           fab.setBackgroundTintList(greenTint)
           serviceStarted = true
           fab.setImageResource(R.drawable.ic_start_connected)
-          preferences.setEnabled(false)
           fabProgressCircle.postDelayed(hideCircle, 100)
           stat.setVisibility(View.VISIBLE)
-          if (resetConnectionTest || state != State.CONNECTED)
-            if (app.isNatEnabled) connectionTestText.setVisibility(View.GONE) else {
-              connectionTestText.setVisibility(View.VISIBLE)
-              connectionTestText.setText(getString(R.string.connection_test_pending))
-            }
         case State.STOPPING =>
           fab.setBackgroundTintList(greyTint)
           serviceStarted = false
           fab.setImageResource(R.drawable.ic_start_busy)
-          preferences.setEnabled(false)
           fabProgressCircle.show()
-          stat.setVisibility(View.GONE)
+          //stat.setVisibility(View.GONE)
         case _ =>
           fab.setBackgroundTintList(greyTint)
           serviceStarted = false
           fab.setImageResource(R.drawable.ic_start_idle)
-          preferences.setEnabled(true)
           fabProgressCircle.postDelayed(hideCircle, 100)
-          stat.setVisibility(View.GONE)
+          //stat.setVisibility(View.GONE)
       }
       state = bgService.getState
     }
   }
 
-  private def updateCurrentProfile() = {
-    // Check if current profile changed
-    if (preferences.profile == null || app.profileId != preferences.profile.id) {
-      updatePreferenceScreen(app.currentProfile match {
-        case Some(profile) => profile // updated
-        case None =>                  // removed
-          app.switchProfile((app.profileManager.getFirstProfile match {
-            case Some(first) => first
-            case None => app.profileManager.createDefault()
-          }).id)
-      })
-
-      if (serviceStarted) serviceLoad()
-
-      true
-    } else {
-      preferences.refreshProfile()
-      false
-    }
-  }
-
   protected override def onResume() {
     super.onResume()
 
-    app.refreshContainerHolder
+    app.refreshContainerHolder()
 
-    updateState(updateCurrentProfile())
-  }
-
-  private def updatePreferenceScreen(profile: Profile) {
-    if (profile.host == "198.199.101.152") if (adView == null) {
-      adView = new AdView(this)
-      adView.setAdUnitId("ca-app-pub-9097031975646651/7760346322")
-      adView.setAdSize(AdSize.SMART_BANNER)
-      preferences.getView.asInstanceOf[ViewGroup].addView(adView, 1)
-
-      // Demographics
-      val random = new Random()
-      val adBuilder = new AdRequest.Builder()
-      adBuilder.setGender(AdRequest.GENDER_MALE)
-      val year = 1975 + random.nextInt(40)
-      val month = 1 + random.nextInt(12)
-      val day = random.nextInt(28)
-      adBuilder.setBirthday(new GregorianCalendar(year, month, day).getTime)
-
-      // Load Ad
-      adView.loadAd(adBuilder.build())
-    } else adView.setVisibility(View.VISIBLE) else if (adView != null) adView.setVisibility(View.GONE)
-
-    preferences.setProfile(profile)
+    updateState()
   }
 
   override def onStart() {
@@ -417,30 +417,22 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
   override def onStop() {
     super.onStop()
     unregisterCallback()
-    clearDialog()
   }
 
   override def onDestroy() {
     super.onDestroy()
+    unregisterReceiver(connectedListener)
+    app.settings.unregisterOnSharedPreferenceChangeListener(this)
     detachService()
     new BackupManager(this).dataChanged()
     handler.removeCallbacksAndMessages(null)
   }
 
-  def recovery() {
-    if (serviceStarted) serviceStop()
-    val h = showProgress(R.string.recovering)
-    Utils.ThrowableFuture {
-      app.copyAssets()
-      h.sendEmptyMessage(0)
-    }
-  }
-
   override def onActivityResult(requestCode: Int, resultCode: Int, data: Intent): Unit = resultCode match {
     case Activity.RESULT_OK =>
       serviceLoad()
     case _ =>
-      cancelStart()
+      changeSwitch(checked = false)
       Log.e(TAG, "Failed to start VpnService")
   }
 
@@ -456,11 +448,4 @@ class Shadowsocks extends AppCompatActivity with ServiceBoundContext {
       changeSwitch(checked = false)
     }
   }
-
-  def clearDialog() {
-    if (progressDialog != null && progressDialog.isShowing) {
-      if (!isDestroyed) progressDialog.dismiss()
-      progressDialog = null
-    }
-  }
 }
diff --git a/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala b/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala
new file mode 100644
index 00000000..34d2264b
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala
@@ -0,0 +1,20 @@
+package com.github.shadowsocks
+
+import android.app.Activity
+import android.os.Bundle
+import android.support.v7.widget.Toolbar
+import android.support.v7.widget.Toolbar.OnMenuItemClickListener
+
+class ProfileConfigActivity extends Activity {
+  override def onCreate(savedInstanceState: Bundle) {
+    super.onCreate(savedInstanceState)
+    setContentView(R.layout.layout_profile_config)
+    val toolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
+    toolbar.setTitle("Profile config")  // TODO
+    toolbar.setNavigationIcon(R.drawable.ic_navigation_close)
+    toolbar.setNavigationOnClickListener(_ => finish())
+    toolbar.inflateMenu(R.menu.profile_config_menu)
+    toolbar.setOnMenuItemClickListener(getFragmentManager.findFragmentById(R.id.content)
+      .asInstanceOf[OnMenuItemClickListener])
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala b/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala
new file mode 100644
index 00000000..47e03cc2
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala
@@ -0,0 +1,103 @@
+/*******************************************************************************/
+/*                                                                             */
+/*  Copyright (C) 2016 by Max Lv <max.c.lv@gmail.com>                          */
+/*  Copyright (C) 2016 by Mygod Studio <contact-shadowsocks-android@mygod.be>  */
+/*                                                                             */
+/*  This program is free software: you can redistribute it and/or modify       */
+/*  it under the terms of the GNU General Public License as published by       */
+/*  the Free Software Foundation, either version 3 of the License, or          */
+/*  (at your option) any later version.                                        */
+/*                                                                             */
+/*  This program is distributed in the hope that it will be useful,            */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of             */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              */
+/*  GNU General Public License for more details.                               */
+/*                                                                             */
+/*  You should have received a copy of the GNU General Public License          */
+/*  along with this program. If not, see <http://www.gnu.org/licenses/>.       */
+/*                                                                             */
+/*******************************************************************************/
+
+package com.github.shadowsocks
+
+import android.content._
+import android.os._
+import android.support.v14.preference.SwitchPreference
+import android.support.v4.content.LocalBroadcastManager
+import android.support.v7.app.AlertDialog
+import android.support.v7.preference.Preference
+import android.support.v7.widget.Toolbar.OnMenuItemClickListener
+import android.view.MenuItem
+import be.mygod.preference._
+import com.github.shadowsocks.ShadowsocksApplication.app
+import com.github.shadowsocks.database.Profile
+import com.github.shadowsocks.preferences.KcpCliPreferenceDialogFragment
+import com.github.shadowsocks.utils.{Action, Key, Utils}
+
+class ProfileConfigFragment extends PreferenceFragment with OnMenuItemClickListener {
+  private lazy val clipboard = getActivity.getSystemService(Context.CLIPBOARD_SERVICE).asInstanceOf[ClipboardManager]
+  private var profile: Profile = _
+  private var isProxyApps: SwitchPreference = _
+
+  override def onCreatePreferences(bundle: Bundle, key: String) {
+    app.profileManager.getProfile(getActivity.getIntent.getIntExtra(Action.EXTRA_PROFILE_ID, -1)) match {
+      case Some(p) =>
+        profile = p
+        profile.serialize(app.editor).apply()
+      case None => getActivity.finish()
+    }
+    addPreferencesFromResource(R.xml.pref_profile)
+    if (Build.VERSION.SDK_INT >= 25 && getActivity.getSystemService(classOf[UserManager]).isDemoUser) {
+      findPreference(Key.host).setSummary("shadowsocks.example.org")
+      findPreference(Key.remotePort).setSummary("1337")
+      findPreference(Key.password).setSummary("\u2022" * 32)
+    }
+    isProxyApps = findPreference(Key.proxyApps).asInstanceOf[SwitchPreference]
+    isProxyApps.setEnabled(Utils.isLollipopOrAbove || app.isNatEnabled)
+    isProxyApps.setOnPreferenceClickListener(_ => {
+      startActivity(new Intent(getActivity, classOf[AppManager]))
+      isProxyApps.setChecked(true)
+      false
+    })
+  }
+
+  override def onResume() {
+    super.onResume()
+    isProxyApps.setChecked(app.settings.getBoolean(Key.proxyApps, false)) // fetch proxyApps updated by AppManager
+  }
+
+  override def onDisplayPreferenceDialog(preference: Preference): Unit = preference.getKey match {
+    case Key.kcpcli => displayPreferenceDialog(Key.kcpcli, new KcpCliPreferenceDialogFragment())
+    case _ => super.onDisplayPreferenceDialog(preference)
+  }
+
+  override def onMenuItemClick(item: MenuItem): Boolean = item.getItemId match {
+    case R.id.action_qr_code_nfc =>
+      getFragmentManager.beginTransaction().add(new QRCodeDialog(profile.toString), "").commitAllowingStateLoss()
+      true
+    case R.id.action_export =>
+      clipboard.setPrimaryClip(ClipData.newPlainText(null, profile.toString))
+      true
+    case R.id.action_delete =>
+      new AlertDialog.Builder(getActivity)
+        .setTitle("Confirm?") // TODO
+        .setPositiveButton(android.R.string.yes, ((_, _) => {
+          app.profileManager.delProfile(profile.id)
+          LocalBroadcastManager.getInstance(getActivity)
+            .sendBroadcast(new Intent(Action.PROFILE_REMOVED).putExtra(Action.EXTRA_PROFILE_ID, profile.id))
+          getActivity.finish()
+        }): DialogInterface.OnClickListener)
+        .setNegativeButton(android.R.string.no, null)
+        .create()
+        .show()
+      true
+    case R.id.action_apply =>
+      profile.deserialize(app.settings)
+      app.profileManager.updateProfile(profile)
+      LocalBroadcastManager.getInstance(getActivity)
+        .sendBroadcast(new Intent(Action.PROFILE_CHANGED).putExtra(Action.EXTRA_PROFILE_ID, profile.id))
+      getActivity.finish()
+      true
+    case _ => false
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/ProfileManagerActivity.scala b/src/main/scala/com/github/shadowsocks/ProfileManagerActivity.scala
deleted file mode 100644
index a567aa4e..00000000
--- a/src/main/scala/com/github/shadowsocks/ProfileManagerActivity.scala
+++ /dev/null
@@ -1,425 +0,0 @@
-/*******************************************************************************/
-/*                                                                             */
-/*  Copyright (C) 2016 by Max Lv <max.c.lv@gmail.com>                          */
-/*  Copyright (C) 2016 by Mygod Studio <contact-shadowsocks-android@mygod.be>  */
-/*                                                                             */
-/*  This program is free software: you can redistribute it and/or modify       */
-/*  it under the terms of the GNU General Public License as published by       */
-/*  the Free Software Foundation, either version 3 of the License, or          */
-/*  (at your option) any later version.                                        */
-/*                                                                             */
-/*  This program is distributed in the hope that it will be useful,            */
-/*  but WITHOUT ANY WARRANTY; without even the implied warranty of             */
-/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              */
-/*  GNU General Public License for more details.                               */
-/*                                                                             */
-/*  You should have received a copy of the GNU General Public License          */
-/*  along with this program. If not, see <http://www.gnu.org/licenses/>.       */
-/*                                                                             */
-/*******************************************************************************/
-
-package com.github.shadowsocks
-
-import java.nio.charset.Charset
-
-import android.app.TaskStackBuilder
-import android.content._
-import android.content.pm.PackageManager
-import android.nfc.NfcAdapter.CreateNdefMessageCallback
-import android.nfc.{NdefMessage, NdefRecord, NfcAdapter, NfcEvent}
-import android.os.{Build, Bundle, Handler, UserManager}
-import android.provider.Settings
-import android.support.v7.app.{AlertDialog, AppCompatActivity}
-import android.support.v7.widget.RecyclerView.ViewHolder
-import android.support.v7.widget.Toolbar.OnMenuItemClickListener
-import android.support.v7.widget._
-import android.support.v7.widget.helper.ItemTouchHelper
-import android.support.v7.widget.helper.ItemTouchHelper.SimpleCallback
-import android.text.style.TextAppearanceSpan
-import android.text.{SpannableStringBuilder, Spanned, TextUtils}
-import android.view._
-import android.widget.{CheckedTextView, ImageView, LinearLayout, Toast}
-import com.github.clans.fab.{FloatingActionButton, FloatingActionMenu}
-import com.github.shadowsocks.ShadowsocksApplication.app
-import com.github.shadowsocks.aidl.IShadowsocksServiceCallback
-import com.github.shadowsocks.database.Profile
-import com.github.shadowsocks.utils.{Key, Parser, TrafficMonitor, Utils}
-import com.github.shadowsocks.widget.UndoSnackbarManager
-import net.glxn.qrgen.android.QRCode
-
-import scala.collection.mutable.ArrayBuffer
-
-final class ProfileManagerActivity extends AppCompatActivity with OnMenuItemClickListener with ServiceBoundContext
-  with View.OnClickListener with CreateNdefMessageCallback {
-
-  private final class ProfileViewHolder(val view: View) extends RecyclerView.ViewHolder(view)
-    with View.OnClickListener with View.OnKeyListener {
-
-    var item: Profile = _
-    private val text = itemView.findViewById(android.R.id.text1).asInstanceOf[CheckedTextView]
-    itemView.setOnClickListener(this)
-    itemView.setOnKeyListener(this)
-
-    {
-      val shareBtn = itemView.findViewById(R.id.share)
-      shareBtn.setOnClickListener(_ => {
-        val url = item.toString
-        if (isNfcBeamEnabled) {
-          nfcAdapter.setNdefPushMessageCallback(ProfileManagerActivity.this,ProfileManagerActivity.this)
-          nfcShareItem = url.getBytes(Charset.forName("UTF-8"))
-        }
-        val image = new ImageView(ProfileManagerActivity.this)
-        image.setLayoutParams(new LinearLayout.LayoutParams(-1, -1))
-        val qrcode = QRCode.from(url)
-          .withSize(Utils.dpToPx(ProfileManagerActivity.this, 250), Utils.dpToPx(ProfileManagerActivity.this, 250))
-          .asInstanceOf[QRCode].bitmap()
-        image.setImageBitmap(qrcode)
-
-        val dialog = new AlertDialog.Builder(ProfileManagerActivity.this)
-          .setCancelable(true)
-          .setPositiveButton(R.string.close, null)
-          .setNegativeButton(R.string.copy_url, ((_, _) =>
-            clipboard.setPrimaryClip(ClipData.newPlainText(null, url))): DialogInterface.OnClickListener)
-          .setView(image)
-          .setTitle(R.string.share)
-          .create()
-        if (!isNfcAvailable) dialog.setMessage(getString(R.string.share_message_without_nfc))
-        else if (!isNfcBeamEnabled) {
-          dialog.setMessage(getString(R.string.share_message_nfc_disabled))
-          dialog.setButton(DialogInterface.BUTTON_NEUTRAL, getString(R.string.turn_on_nfc),
-            ((_, _) => startActivity(new Intent(Settings.ACTION_NFC_SETTINGS))): DialogInterface.OnClickListener)
-        } else {
-          dialog.setMessage(getString(R.string.share_message))
-          dialog.setOnDismissListener(_ =>
-            nfcAdapter.setNdefPushMessageCallback(null, ProfileManagerActivity.this))
-        }
-        dialog.show()
-      })
-      shareBtn.setOnLongClickListener(_ => {
-        Utils.positionToast(Toast.makeText(ProfileManagerActivity.this, R.string.share, Toast.LENGTH_SHORT), shareBtn,
-          getWindow, 0, Utils.dpToPx(ProfileManagerActivity.this, 8)).show()
-        true
-      })
-    }
-
-    def updateText(txTotal: Long = 0, rxTotal: Long = 0) {
-      val builder = new SpannableStringBuilder
-      val tx = item.tx + txTotal
-      val rx = item.rx + rxTotal
-      builder.append(if (isDemoMode) "Profile #" + item.id else item.name)
-      if (tx != 0 || rx != 0) {
-        val start = builder.length
-        builder.append(getString(R.string.stat_profiles,
-          TrafficMonitor.formatTraffic(tx), TrafficMonitor.formatTraffic(rx)))
-        builder.setSpan(new TextAppearanceSpan(ProfileManagerActivity.this, android.R.style.TextAppearance_Small),
-          start + 1, builder.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
-      }
-      handler.post(() => text.setText(builder))
-    }
-
-    def bind(item: Profile) {
-      this.item = item
-      updateText()
-      if (item.id == app.profileId) {
-        text.setChecked(true)
-        selectedItem = this
-      } else {
-        text.setChecked(false)
-        if (selectedItem eq this) selectedItem = null
-      }
-    }
-
-    def onClick(v: View) {
-      app.switchProfile(item.id)
-      finish()
-    }
-
-    def onKey(v: View, keyCode: Int, event: KeyEvent): Boolean =
-      if (event.getAction == KeyEvent.ACTION_DOWN) keyCode match {
-        case KeyEvent.KEYCODE_DPAD_LEFT =>
-          val index = getAdapterPosition
-          if (index >= 0) {
-            profilesAdapter.remove(index)
-            undoManager.remove(index, item)
-            true
-          } else false
-        case _ => false
-      } else false
-  }
-
-  private class ProfilesAdapter extends RecyclerView.Adapter[ProfileViewHolder] {
-    var profiles = new ArrayBuffer[Profile]
-    profiles ++= app.profileManager.getAllProfiles.getOrElse(List.empty[Profile])
-
-    def getItemCount: Int = profiles.length
-
-    def onBindViewHolder(vh: ProfileViewHolder, i: Int): Unit = vh.bind(profiles(i))
-
-    def onCreateViewHolder(vg: ViewGroup, i: Int) =
-      new ProfileViewHolder(LayoutInflater.from(vg.getContext).inflate(R.layout.layout_profiles_item, vg, false))
-
-    def add(item: Profile) {
-      undoManager.flush()
-      val pos = getItemCount
-      profiles += item
-      notifyItemInserted(pos)
-    }
-
-    def move(from: Int, to: Int) {
-      undoManager.flush()
-      val step = if (from < to) 1 else -1
-      val first = profiles(from)
-      var previousOrder = profiles(from).userOrder
-      for (i <- from until to by step) {
-        val next = profiles(i + step)
-        val order = next.userOrder
-        next.userOrder = previousOrder
-        previousOrder = order
-        profiles(i) = next
-        app.profileManager.updateProfile(next)
-      }
-      first.userOrder = previousOrder
-      profiles(to) = first
-      app.profileManager.updateProfile(first)
-      notifyItemMoved(from, to)
-    }
-
-    def remove(pos: Int) {
-      profiles.remove(pos)
-      notifyItemRemoved(pos)
-    }
-    def undo(actions: Iterator[(Int, Profile)]): Unit = for ((index, item) <- actions) {
-      profiles.insert(index, item)
-      notifyItemInserted(index)
-    }
-    def commit(actions: Iterator[(Int, Profile)]): Unit = for ((_, item) <- actions) {
-      app.profileManager.delProfile(item.id)
-      if (item.id == app.profileId) app.profileId(-1)
-    }
-  }
-
-  private var selectedItem: ProfileViewHolder = _
-  private val handler = new Handler
-
-  private var menu : FloatingActionMenu = _
-
-  private lazy val profilesAdapter = new ProfilesAdapter
-  private var undoManager: UndoSnackbarManager[Profile] = _
-
-  private lazy val clipboard = getSystemService(Context.CLIPBOARD_SERVICE).asInstanceOf[ClipboardManager]
-  private lazy val isDemoMode = Build.VERSION.SDK_INT >= 25 && getSystemService(classOf[UserManager]).isDemoUser
-
-  private var nfcAdapter : NfcAdapter = _
-  private var nfcShareItem: Array[Byte] = _
-  private var isNfcAvailable: Boolean = _
-  private var isNfcEnabled: Boolean = _
-  private var isNfcBeamEnabled: Boolean = _
-
-  override def onCreate(savedInstanceState: Bundle) {
-    super.onCreate(savedInstanceState)
-    setContentView(R.layout.layout_profiles)
-
-    val toolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
-    toolbar.setTitle(R.string.profiles)
-    toolbar.setNavigationIcon(R.drawable.ic_navigation_close)
-    toolbar.setNavigationOnClickListener(_ => {
-      val intent = getParentActivityIntent
-      if (shouldUpRecreateTask(intent) || isTaskRoot)
-        TaskStackBuilder.create(this).addNextIntentWithParentStack(intent).startActivities()
-      else finish()
-    })
-    toolbar.inflateMenu(R.menu.profile_manager_menu)
-    toolbar.setOnMenuItemClickListener(this)
-
-    initFab()
-
-    app.profileManager.setProfileAddedListener(profilesAdapter.add)
-    val profilesList = findViewById(R.id.profilesList).asInstanceOf[RecyclerView]
-    val layoutManager = new LinearLayoutManager(this)
-    profilesList.setLayoutManager(layoutManager)
-    profilesList.setItemAnimator(new DefaultItemAnimator)
-    profilesList.setAdapter(profilesAdapter)
-    layoutManager.scrollToPosition(profilesAdapter.profiles.zipWithIndex.collectFirst {
-      case (profile, i) if profile.id == app.profileId => i
-    }.getOrElse(-1))
-    undoManager = new UndoSnackbarManager[Profile](profilesList, profilesAdapter.undo, profilesAdapter.commit)
-    new ItemTouchHelper(new SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN,
-      ItemTouchHelper.START | ItemTouchHelper.END) {
-      def onSwiped(viewHolder: ViewHolder, direction: Int) {
-        val index = viewHolder.getAdapterPosition
-        profilesAdapter.remove(index)
-        undoManager.remove(index, viewHolder.asInstanceOf[ProfileViewHolder].item)
-      }
-      def onMove(recyclerView: RecyclerView, viewHolder: ViewHolder, target: ViewHolder): Boolean = {
-        profilesAdapter.move(viewHolder.getAdapterPosition, target.getAdapterPosition)
-        true
-      }
-    }).attachToRecyclerView(profilesList)
-
-    attachService(new IShadowsocksServiceCallback.Stub {
-      def stateChanged(state: Int, profileName: String, msg: String): Unit = () // ignore
-      def trafficUpdated(txRate: Long, rxRate: Long, txTotal: Long, rxTotal: Long): Unit =
-        if (selectedItem != null) selectedItem.updateText(txTotal, rxTotal)
-    })
-
-    if (app.settings.getBoolean(Key.profileTip, true)) {
-      app.editor.putBoolean(Key.profileTip, false).apply()
-      new AlertDialog.Builder(this).setTitle(R.string.profile_manager_dialog)
-        .setMessage(R.string.profile_manager_dialog_content).setPositiveButton(R.string.gotcha, null).create().show()
-    }
-
-    val intent = getIntent
-    if (intent != null) handleShareIntent(intent)
-  }
-
-  def initFab() {
-    menu = findViewById(R.id.menu).asInstanceOf[FloatingActionMenu]
-    menu.setClosedOnTouchOutside(true)
-    val dm = AppCompatDrawableManager.get
-    val manualAddFAB = findViewById(R.id.fab_manual_add).asInstanceOf[FloatingActionButton]
-    manualAddFAB.setImageDrawable(dm.getDrawable(this, R.drawable.ic_content_create))
-    manualAddFAB.setOnClickListener(this)
-    val qrcodeAddFAB = findViewById(R.id.fab_qrcode_add).asInstanceOf[FloatingActionButton]
-    qrcodeAddFAB.setImageDrawable(dm.getDrawable(this, R.drawable.ic_image_camera_alt))
-    qrcodeAddFAB.setOnClickListener(this)
-    val nfcAddFAB = findViewById(R.id.fab_nfc_add).asInstanceOf[FloatingActionButton]
-    nfcAddFAB.setImageDrawable(dm.getDrawable(this, R.drawable.ic_device_nfc))
-    nfcAddFAB.setOnClickListener(this)
-    val importAddFAB = findViewById(R.id.fab_import_add).asInstanceOf[FloatingActionButton]
-    importAddFAB.setImageDrawable(dm.getDrawable(this, R.drawable.ic_content_paste))
-    importAddFAB.setOnClickListener(this)
-    menu.setOnMenuToggleListener(opened => if (opened) qrcodeAddFAB.setVisibility(
-      if (getPackageManager.hasSystemFeature(PackageManager.FEATURE_CAMERA)) View.VISIBLE else View.GONE))
-  }
-
-
-  override def onResume() {
-    super.onResume()
-    updateNfcState()
-  }
-
-  override def onNewIntent(intent: Intent) {
-    super.onNewIntent(intent)
-    handleShareIntent(intent)
-  }
-
-  override def onClick(v: View){
-    v.getId match {
-      case R.id.fab_manual_add =>
-        menu.toggle(true)
-        val profile = app.profileManager.createProfile()
-        app.profileManager.updateProfile(profile)
-        app.switchProfile(profile.id)
-        finish()
-      case R.id.fab_qrcode_add =>
-        menu.toggle(false)
-        val intent = new Intent(this, classOf[ScannerActivity])
-        startActivity(intent)
-      case R.id.fab_nfc_add =>
-        menu.toggle(true)
-        val dialog = new AlertDialog.Builder(ProfileManagerActivity.this)
-          .setCancelable(true)
-          .setPositiveButton(R.string.gotcha, null)
-          .setTitle(R.string.add_profile_nfc_hint_title)
-          .create()
-        if (!isNfcBeamEnabled) {
-          dialog.setMessage(getString(R.string.share_message_nfc_disabled))
-          dialog.setButton(DialogInterface.BUTTON_NEUTRAL, getString(R.string.turn_on_nfc), ((_, _) =>
-              startActivity(new Intent(Settings.ACTION_NFC_SETTINGS))
-            ): DialogInterface.OnClickListener)
-        } else {
-          dialog.setMessage(getString(R.string.add_profile_nfc_hint))
-        }
-        dialog.show()
-      case R.id.fab_import_add =>
-        menu.toggle(true)
-        if (clipboard.hasPrimaryClip) {
-          val profiles = Parser.findAll(clipboard.getPrimaryClip.getItemAt(0).getText)
-          if (profiles.nonEmpty) {
-            profiles.foreach(app.profileManager.createProfile)
-            Toast.makeText(this, R.string.action_import_msg, Toast.LENGTH_SHORT).show()
-            return
-          }
-        }
-        Toast.makeText(this, R.string.action_import_err, Toast.LENGTH_SHORT).show()
-    }
-  }
-
-  def updateNfcState() {
-    isNfcAvailable = false
-    isNfcEnabled = false
-    isNfcBeamEnabled = false
-    nfcAdapter = NfcAdapter.getDefaultAdapter(this)
-    if (nfcAdapter != null) {
-      isNfcAvailable = true
-      if (nfcAdapter.isEnabled) {
-        isNfcEnabled = true
-        if (nfcAdapter.isNdefPushEnabled) {
-          isNfcBeamEnabled = true
-          nfcAdapter.setNdefPushMessageCallback(null, ProfileManagerActivity.this)
-        }
-      }
-    }
-  }
-
-  def handleShareIntent(intent: Intent) {
-    val sharedStr = intent.getAction match {
-      case Intent.ACTION_VIEW => intent.getData.toString
-      case NfcAdapter.ACTION_NDEF_DISCOVERED =>
-        val rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES)
-        if (rawMsgs != null && rawMsgs.nonEmpty)
-          new String(rawMsgs(0).asInstanceOf[NdefMessage].getRecords()(0).getPayload)
-        else null
-      case _ => null
-    }
-    if (TextUtils.isEmpty(sharedStr)) return
-    val profiles = Parser.findAll(sharedStr).toList
-    if (profiles.isEmpty) {
-      finish()
-      return
-    }
-    val dialog = new AlertDialog.Builder(this)
-      .setTitle(R.string.add_profile_dialog)
-      .setPositiveButton(android.R.string.yes, ((_, _) =>
-        profiles.foreach(app.profileManager.createProfile)): DialogInterface.OnClickListener)
-      .setNegativeButton(android.R.string.no, ((_, _) => finish()): DialogInterface.OnClickListener)
-      .setMessage(profiles.mkString("\n"))
-      .create()
-    dialog.show()
-  }
-
-  override def onStart() {
-    super.onStart()
-    registerCallback
-  }
-  override def onStop() {
-    super.onStop()
-    unregisterCallback
-  }
-
-  override def onDestroy() {
-    detachService()
-    undoManager.flush()
-    app.profileManager.setProfileAddedListener(null)
-    super.onDestroy()
-  }
-
-  override def onBackPressed() {
-    if (menu.isOpened) menu.close(true) else super.onBackPressed()
-  }
-
-  def createNdefMessage(nfcEvent: NfcEvent) =
-    new NdefMessage(Array(new NdefRecord(NdefRecord.TNF_ABSOLUTE_URI, nfcShareItem, Array[Byte](), nfcShareItem)))
-
-  def onMenuItemClick(item: MenuItem): Boolean = item.getItemId match {
-    case R.id.action_export =>
-      app.profileManager.getAllProfiles match {
-        case Some(profiles) =>
-          clipboard.setPrimaryClip(ClipData.newPlainText(null, profiles.mkString("\n")))
-          Toast.makeText(this, R.string.action_export_msg, Toast.LENGTH_SHORT).show()
-        case _ => Toast.makeText(this, R.string.action_export_err, Toast.LENGTH_SHORT).show()
-      }
-      true
-    case _ => false
-  }
-}
diff --git a/src/main/scala/com/github/shadowsocks/ProfilesFragment.scala b/src/main/scala/com/github/shadowsocks/ProfilesFragment.scala
new file mode 100644
index 00000000..ebbc30cf
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/ProfilesFragment.scala
@@ -0,0 +1,270 @@
+/*******************************************************************************/
+/*                                                                             */
+/*  Copyright (C) 2016 by Max Lv <max.c.lv@gmail.com>                          */
+/*  Copyright (C) 2016 by Mygod Studio <contact-shadowsocks-android@mygod.be>  */
+/*                                                                             */
+/*  This program is free software: you can redistribute it and/or modify       */
+/*  it under the terms of the GNU General Public License as published by       */
+/*  the Free Software Foundation, either version 3 of the License, or          */
+/*  (at your option) any later version.                                        */
+/*                                                                             */
+/*  This program is distributed in the hope that it will be useful,            */
+/*  but WITHOUT ANY WARRANTY; without even the implied warranty of             */
+/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              */
+/*  GNU General Public License for more details.                               */
+/*                                                                             */
+/*  You should have received a copy of the GNU General Public License          */
+/*  along with this program. If not, see <http://www.gnu.org/licenses/>.       */
+/*                                                                             */
+/*******************************************************************************/
+
+package com.github.shadowsocks
+
+import android.app.Activity
+import android.content._
+import android.graphics.Typeface
+import android.os.{Build, Bundle, Handler, UserManager}
+import android.support.v4.content.LocalBroadcastManager
+import android.support.v7.widget.RecyclerView.ViewHolder
+import android.support.v7.widget.Toolbar.OnMenuItemClickListener
+import android.support.v7.widget._
+import android.support.v7.widget.helper.ItemTouchHelper
+import android.support.v7.widget.helper.ItemTouchHelper.SimpleCallback
+import android.view._
+import android.widget.{TextView, Toast}
+import com.github.shadowsocks.ShadowsocksApplication.app
+import com.github.shadowsocks.aidl.IShadowsocksServiceCallback
+import com.github.shadowsocks.database.Profile
+import com.github.shadowsocks.utils.{Action, Parser, TrafficMonitor, Utils}
+import com.github.shadowsocks.widget.UndoSnackbarManager
+
+import scala.collection.mutable.ArrayBuffer
+
+final class ProfilesFragment extends ToolbarFragment with OnMenuItemClickListener {
+  private final class ProfileViewHolder(val view: View) extends RecyclerView.ViewHolder(view)
+    with View.OnClickListener {
+
+    var item: Profile = _
+    private val text1 = itemView.findViewById(android.R.id.text1).asInstanceOf[TextView]
+    private val text2 = itemView.findViewById(android.R.id.text2).asInstanceOf[TextView]
+    itemView.setOnClickListener(this)
+
+    {
+      val edit = itemView.findViewById(R.id.edit)
+      edit.setOnClickListener(_ => startActivity(new Intent(getActivity, classOf[ProfileConfigActivity])
+        .putExtra(Action.EXTRA_PROFILE_ID, item.id)))
+      edit.setOnLongClickListener(_ => {
+        Utils.positionToast(Toast.makeText(getActivity, edit.getContentDescription, Toast.LENGTH_SHORT), edit,
+          getActivity.getWindow, 0, Utils.dpToPx(getActivity, 8)).show()
+        true
+      })
+    }
+
+    def updateText(txTotal: Long = 0, rxTotal: Long = 0) {
+      val tx = item.tx + txTotal
+      val rx = item.rx + rxTotal
+      var title = if (isDemoMode) "Profile #" + item.id else item.name
+      val builder = new StringBuilder()
+      val address = (if (item.host.contains(":")) "[%s]:%d" else "%s:%d").format(item.host, item.remotePort)
+      if (title == null || title.isEmpty) title = address else builder.append(address)
+      if (tx != 0 || rx != 0) {
+        if (builder.nonEmpty) builder.append('\n')
+        builder.append(getString(R.string.stat_profiles,
+          TrafficMonitor.formatTraffic(tx), TrafficMonitor.formatTraffic(rx)))
+      }
+      handler.post(() => {
+        text1.setText(title)
+        text2.setText(builder)
+        text2.setVisibility(if (builder.isEmpty) View.GONE else View.VISIBLE)
+      })
+    }
+
+    def bind(item: Profile) {
+      this.item = item
+      updateText()
+      if (item.id == app.profileId) {
+        text1.setTypeface(null, Typeface.BOLD)
+        selectedItem = this
+      } else {
+        text1.setTypeface(null, Typeface.NORMAL)
+        if (selectedItem eq this) selectedItem = null
+      }
+    }
+
+    def onClick(v: View): Unit = app.switchProfile(item.id)
+  }
+
+  private class ProfilesAdapter extends RecyclerView.Adapter[ProfileViewHolder] {
+    var profiles = new ArrayBuffer[Profile]
+    profiles ++= app.profileManager.getAllProfiles.getOrElse(List.empty[Profile])
+
+    def getItemCount: Int = profiles.length
+
+    def onBindViewHolder(vh: ProfileViewHolder, i: Int): Unit = vh.bind(profiles(i))
+
+    def onCreateViewHolder(vg: ViewGroup, i: Int) =
+      new ProfileViewHolder(LayoutInflater.from(vg.getContext).inflate(R.layout.layout_profiles_item, vg, false))
+
+    def add(item: Profile) {
+      undoManager.flush()
+      val pos = getItemCount
+      profiles += item
+      notifyItemInserted(pos)
+    }
+
+    def move(from: Int, to: Int) {
+      undoManager.flush()
+      val step = if (from < to) 1 else -1
+      val first = profiles(from)
+      var previousOrder = profiles(from).userOrder
+      for (i <- from until to by step) {
+        val next = profiles(i + step)
+        val order = next.userOrder
+        next.userOrder = previousOrder
+        previousOrder = order
+        profiles(i) = next
+        app.profileManager.updateProfile(next)
+      }
+      first.userOrder = previousOrder
+      profiles(to) = first
+      app.profileManager.updateProfile(first)
+      notifyItemMoved(from, to)
+    }
+
+    def remove(pos: Int) {
+      profiles.remove(pos)
+      notifyItemRemoved(pos)
+    }
+    def undo(actions: Iterator[(Int, Profile)]): Unit = for ((index, item) <- actions) {
+      profiles.insert(index, item)
+      notifyItemInserted(index)
+    }
+    def commit(actions: Iterator[(Int, Profile)]): Unit = for ((_, item) <- actions) {
+      app.profileManager.delProfile(item.id)
+      if (item.id == app.profileId) app.profileId(-1)
+    }
+
+    def refreshId(id: Int) {
+      val index = profiles.indexWhere(_.id == id)
+      profiles(index) = app.profileManager.getProfile(id).get
+      notifyItemChanged(index)
+    }
+    def removeId(id: Int) {
+      val index = profiles.indexWhere(_.id == id)
+      profiles.remove(index)
+      notifyItemRemoved(index)
+    }
+  }
+
+  private var selectedItem: ProfileViewHolder = _
+  private val handler = new Handler
+  private val profilesListener: BroadcastReceiver = (_, intent) => {
+    val id = intent.getIntExtra(Action.EXTRA_PROFILE_ID, -1)
+    intent.getAction match {
+      case Action.PROFILE_CHANGED => profilesAdapter.refreshId(id)
+      case Action.PROFILE_REMOVED => profilesAdapter.removeId(id)
+    }
+  }
+
+  private lazy val profilesAdapter = new ProfilesAdapter
+  private var undoManager: UndoSnackbarManager[Profile] = _
+
+  private lazy val clipboard = getActivity.getSystemService(Context.CLIPBOARD_SERVICE).asInstanceOf[ClipboardManager]
+  private lazy val isDemoMode = Build.VERSION.SDK_INT >= 25 &&
+    getActivity.getSystemService(classOf[UserManager]).isDemoUser
+
+  override def onCreateView(inflater: LayoutInflater, container: ViewGroup, savedInstanceState: Bundle): View =
+    inflater.inflate(R.layout.layout_profiles, container, false)
+
+  override def onViewCreated(view: View, savedInstanceState: Bundle) {
+    super.onViewCreated(view, savedInstanceState)
+    toolbar.setTitle(R.string.profiles)
+    toolbar.inflateMenu(R.menu.profile_manager_menu)
+    toolbar.setOnMenuItemClickListener(this)
+
+    app.profileManager.setProfileAddedListener(profilesAdapter.add)
+    val profilesList = view.findViewById(R.id.profilesList).asInstanceOf[RecyclerView]
+    val layoutManager = new LinearLayoutManager(getActivity)
+    profilesList.setLayoutManager(layoutManager)
+    profilesList.setItemAnimator(new DefaultItemAnimator)
+    profilesList.setAdapter(profilesAdapter)
+    layoutManager.scrollToPosition(profilesAdapter.profiles.zipWithIndex.collectFirst {
+      case (profile, i) if profile.id == app.profileId => i
+    }.getOrElse(-1))
+    undoManager = new UndoSnackbarManager[Profile](profilesList, profilesAdapter.undo, profilesAdapter.commit)
+    new ItemTouchHelper(new SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN,
+      ItemTouchHelper.START | ItemTouchHelper.END) {
+      def onSwiped(viewHolder: ViewHolder, direction: Int) {
+        val index = viewHolder.getAdapterPosition
+        profilesAdapter.remove(index)
+        undoManager.remove(index, viewHolder.asInstanceOf[ProfileViewHolder].item)
+      }
+      def onMove(recyclerView: RecyclerView, viewHolder: ViewHolder, target: ViewHolder): Boolean = {
+        profilesAdapter.move(viewHolder.getAdapterPosition, target.getAdapterPosition)
+        true
+      }
+    }).attachToRecyclerView(profilesList)
+    val filter = new IntentFilter(Action.PROFILE_CHANGED)
+    filter.addAction(Action.PROFILE_REMOVED)
+    LocalBroadcastManager.getInstance(getActivity).registerReceiver(profilesListener, filter)
+  }
+
+  override def onAttach(activity: Activity) {
+    super.onAttach(activity)
+    activity.asInstanceOf[ServiceBoundContext].attachService(new IShadowsocksServiceCallback.Stub {
+      def stateChanged(state: Int, profileName: String, msg: String): Unit = () // ignore
+      def trafficUpdated(txRate: Long, rxRate: Long, txTotal: Long, rxTotal: Long): Unit =
+        if (selectedItem != null) selectedItem.updateText(txTotal, rxTotal)
+    })
+  }
+
+  override def onStart() {
+    super.onStart()
+    getActivity.asInstanceOf[ServiceBoundContext].registerCallback()
+  }
+
+  override def onStop() {
+    super.onStop()
+    getActivity.asInstanceOf[ServiceBoundContext].unregisterCallback()
+  }
+
+  override def onDetach() {
+    getActivity.asInstanceOf[ServiceBoundContext].detachService()
+    undoManager.flush()
+    super.onDetach()
+  }
+
+  override def onDestroy() {
+    LocalBroadcastManager.getInstance(getActivity).unregisterReceiver(profilesListener)
+    super.onDestroy()
+  }
+
+  def onMenuItemClick(item: MenuItem): Boolean = item.getItemId match {
+    case R.id.action_scan_qr_code =>
+      startActivity(new Intent(getActivity, classOf[ScannerActivity]))
+      true
+    case R.id.action_import =>
+      if (clipboard.hasPrimaryClip) {
+        val profiles = Parser.findAll(clipboard.getPrimaryClip.getItemAt(0).getText)
+        if (profiles.nonEmpty) {
+          profiles.foreach(app.profileManager.createProfile)
+          Toast.makeText(getActivity, R.string.action_import_msg, Toast.LENGTH_SHORT).show()
+          return true
+        }
+      }
+      Toast.makeText(getActivity, R.string.action_import_err, Toast.LENGTH_SHORT).show()
+      true
+    case R.id.action_manual_settings =>
+      val profile = app.profileManager.createProfile()
+      app.profileManager.updateProfile(profile)
+    case R.id.action_export =>
+      app.profileManager.getAllProfiles match {
+        case Some(profiles) =>
+          clipboard.setPrimaryClip(ClipData.newPlainText(null, profiles.mkString("\n")))
+          Toast.makeText(getActivity, R.string.action_export_msg, Toast.LENGTH_SHORT).show()
+        case _ => Toast.makeText(getActivity, R.string.action_export_err, Toast.LENGTH_SHORT).show()
+      }
+      true
+    case _ => false
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/QRCodeDialog.scala b/src/main/scala/com/github/shadowsocks/QRCodeDialog.scala
new file mode 100644
index 00000000..7a8500a7
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/QRCodeDialog.scala
@@ -0,0 +1,41 @@
+package com.github.shadowsocks
+
+import java.nio.charset.Charset
+
+import android.app.Activity
+import android.nfc.{NdefMessage, NdefRecord, NfcAdapter}
+import android.os.Bundle
+import android.view.{LayoutInflater, View, ViewGroup}
+import android.widget.{ImageView, LinearLayout}
+import com.github.shadowsocks.utils.Utils
+import net.glxn.qrgen.android.QRCode
+
+final class QRCodeDialog(url: String) extends DialogFragment {
+  private lazy val nfcShareItem = url.getBytes(Charset.forName("UTF-8"))
+  private var adapter: NfcAdapter = _
+
+  override def onCreateView(inflater: LayoutInflater, container: ViewGroup, savedInstanceState: Bundle): View = {
+    val image = new ImageView(getActivity)
+    image.setLayoutParams(new LinearLayout.LayoutParams(-1, -1))
+    val qrcode = QRCode.from(url)
+      .withSize(Utils.dpToPx(getActivity, 250), Utils.dpToPx(getActivity, 250))
+      .asInstanceOf[QRCode].bitmap()
+    image.setImageBitmap(qrcode)
+    image
+  }
+
+  override def onAttach(activity: Activity) {
+    superOnAttach(activity)
+    adapter = NfcAdapter.getDefaultAdapter(getActivity)
+    if (adapter != null) adapter.setNdefPushMessage(new NdefMessage(Array(
+      new NdefRecord(NdefRecord.TNF_ABSOLUTE_URI, nfcShareItem, Array[Byte](), nfcShareItem))), activity)
+  }
+
+  override def onDetach() {
+    if (adapter != null) {
+      adapter.setNdefPushMessage(null, getActivity)
+      adapter = null
+    }
+    super.onDetach()
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/ServiceBoundContext.scala b/src/main/scala/com/github/shadowsocks/ServiceBoundContext.scala
index 7a0ba8ae..e0907b95 100644
--- a/src/main/scala/com/github/shadowsocks/ServiceBoundContext.scala
+++ b/src/main/scala/com/github/shadowsocks/ServiceBoundContext.scala
@@ -46,14 +46,14 @@ trait ServiceBoundContext extends Context with IBinder.DeathRecipient {
     }
   }
 
-  protected def registerCallback(): Unit = if (bgService != null && callback != null && !callbackRegistered) try {
+  def registerCallback(): Unit = if (bgService != null && callback != null && !callbackRegistered) try {
     bgService.registerCallback(callback)
     callbackRegistered = true
   } catch {
     case _: RemoteException => // Nothing
   }
 
-  protected def unregisterCallback() {
+  def unregisterCallback() {
     if (bgService != null && callback != null && callbackRegistered) try bgService.unregisterCallback(callback) catch {
       case _: RemoteException =>
     }
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksNotification.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksNotification.scala
index 2bf9ea09..6d27989d 100644
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksNotification.scala
+++ b/src/main/scala/com/github/shadowsocks/ShadowsocksNotification.scala
@@ -57,7 +57,7 @@ class ShadowsocksNotification(private val service: BaseService, profileName: Str
     .setColor(ContextCompat.getColor(service, R.color.material_primary_500))
     .setTicker(service.getString(R.string.forward_success))
     .setContentTitle(profileName)
-    .setContentIntent(PendingIntent.getActivity(service, 0, new Intent(service, classOf[Shadowsocks])
+    .setContentIntent(PendingIntent.getActivity(service, 0, new Intent(service, classOf[MainActivity])
       .setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT), 0))
     .setSmallIcon(R.drawable.ic_stat_shadowsocks)
   builder.addAction(R.drawable.ic_navigation_close,
diff --git a/src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala b/src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala
deleted file mode 100644
index b9c3a657..00000000
--- a/src/main/scala/com/github/shadowsocks/ShadowsocksSettings.scala
+++ /dev/null
@@ -1,286 +0,0 @@
-/*******************************************************************************/
-/*                                                                             */
-/*  Copyright (C) 2016 by Max Lv <max.c.lv@gmail.com>                          */
-/*  Copyright (C) 2016 by Mygod Studio <contact-shadowsocks-android@mygod.be>  */
-/*                                                                             */
-/*  This program is free software: you can redistribute it and/or modify       */
-/*  it under the terms of the GNU General Public License as published by       */
-/*  the Free Software Foundation, either version 3 of the License, or          */
-/*  (at your option) any later version.                                        */
-/*                                                                             */
-/*  This program is distributed in the hope that it will be useful,            */
-/*  but WITHOUT ANY WARRANTY; without even the implied warranty of             */
-/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              */
-/*  GNU General Public License for more details.                               */
-/*                                                                             */
-/*  You should have received a copy of the GNU General Public License          */
-/*  along with this program. If not, see <http://www.gnu.org/licenses/>.       */
-/*                                                                             */
-/*******************************************************************************/
-
-package com.github.shadowsocks
-
-import java.util.Locale
-
-import android.content.SharedPreferences.OnSharedPreferenceChangeListener
-import android.content.{Intent, SharedPreferences}
-import android.net.Uri
-import android.os.{Build, Bundle, UserManager}
-import android.support.design.widget.Snackbar
-import android.support.v14.preference.SwitchPreference
-import android.support.v7.app.AlertDialog
-import android.support.v7.preference.{DropDownPreference, Preference}
-import android.webkit.{WebView, WebViewClient}
-import com.github.shadowsocks.ShadowsocksApplication.app
-import com.github.shadowsocks.database.Profile
-import com.github.shadowsocks.preferences.KcpCliPreferenceDialogFragment
-import com.github.shadowsocks.utils.{Key, TcpFastOpen, Utils}
-import be.mygod.preference._
-
-object ShadowsocksSettings {
-  // Constants
-  private final val TAG = "ShadowsocksSettings"
-  private val PROXY_PREFS = Array(Key.name, Key.host, Key.remotePort, Key.localPort, Key.password, Key.method,
-    Key.auth, Key.kcp, Key.kcpPort, Key.kcpcli)
-  private val FEATURE_PREFS = Array(Key.route, Key.remoteDns, Key.proxyApps, Key.udpdns, Key.ipv6)
-
-  // Helper functions
-  def updateDropDownPreference(pref: Preference, value: String) {
-    pref.asInstanceOf[DropDownPreference].setValue(value)
-  }
-
-  def updateEditTextPreference(pref: Preference, value: String) {
-    pref.asInstanceOf[EditTextPreference].setText(value)
-  }
-
-  def updateNumberPickerPreference(pref: Preference, value: Int) {
-    pref.asInstanceOf[NumberPickerPreference].setValue(value)
-  }
-
-  def updateSwitchPreference(pref: Preference, value: Boolean) {
-    pref.asInstanceOf[SwitchPreference].setChecked(value)
-  }
-
-  def updatePreference(pref: Preference, name: String, profile: Profile, demo: Boolean = false) {
-    name match {
-      case Key.name =>
-        updateEditTextPreference(pref, profile.name)
-        pref.setSummary(if (demo) "Profile #" + profile.id else "%s")
-      case Key.host =>
-        updateEditTextPreference(pref, profile.host)
-        pref.setSummary(if (demo) "shadowsocks.example.org" else "%s")
-      case Key.remotePort =>
-        updateNumberPickerPreference(pref, profile.remotePort)
-        pref.setSummary(if (demo) "1337" else "%d")
-      case Key.localPort => updateNumberPickerPreference(pref, profile.localPort)
-      case Key.password =>
-        updateEditTextPreference(pref, profile.password)
-        pref.setSummary(if (demo) "\u2022" * 32 else "%s")
-      case Key.remoteDns =>
-        updateEditTextPreference(pref, profile.remoteDns)
-        if (profile.remoteDns != null)
-          pref.setSummary(if (demo) "8.8.8.8" else "%s")
-      case Key.method => updateDropDownPreference(pref, profile.method)
-      case Key.route => updateDropDownPreference(pref, profile.route)
-      case Key.proxyApps => updateSwitchPreference(pref, profile.proxyApps)
-      case Key.udpdns => updateSwitchPreference(pref, profile.udpdns)
-      case Key.auth => updateSwitchPreference(pref, profile.auth)
-      case Key.ipv6 => updateSwitchPreference(pref, profile.ipv6)
-      case Key.kcp => updateSwitchPreference(pref, profile.kcp)
-      case Key.kcpPort => updateNumberPickerPreference(pref, profile.kcpPort)
-      case Key.kcpcli => updateEditTextPreference(pref, profile.kcpcli)
-    }
-  }
-}
-
-class ShadowsocksSettings extends PreferenceFragment with OnSharedPreferenceChangeListener {
-  import ShadowsocksSettings._
-
-  private def activity = getActivity.asInstanceOf[Shadowsocks]
-  lazy val natSwitch: SwitchPreference = findPreference(Key.isNAT).asInstanceOf[SwitchPreference]
-
-  private var isProxyApps: SwitchPreference = _
-
-  override def onCreatePreferences(bundle: Bundle, key: String) {
-    addPreferencesFromResource(R.xml.pref_all)
-    getPreferenceManager.getSharedPreferences.registerOnSharedPreferenceChangeListener(this)
-
-    findPreference(Key.name).setOnPreferenceChangeListener((_, value) => {
-      profile.name = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.host).setOnPreferenceChangeListener((_, value) => {
-      profile.host = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.remotePort).setOnPreferenceChangeListener((_, value) => {
-      profile.remotePort = value.asInstanceOf[Int]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.localPort).setOnPreferenceChangeListener((_, value) => {
-      profile.localPort = value.asInstanceOf[Int]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.password).setOnPreferenceChangeListener((_, value) => {
-      profile.password = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.method).setOnPreferenceChangeListener((_, value) => {
-      profile.method = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.route).setOnPreferenceChangeListener((_, value) => {
-      profile.route = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.remoteDns).setOnPreferenceChangeListener((_, value) => {
-      profile.remoteDns = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-
-    findPreference(Key.kcp).setOnPreferenceChangeListener((_, value) => {
-      profile.kcp = value.asInstanceOf[Boolean]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.kcpPort).setOnPreferenceChangeListener((_, value) => {
-      profile.kcpPort = value.asInstanceOf[Int]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.kcpcli).setOnPreferenceChangeListener((_, value) => {
-      profile.kcpcli = value.asInstanceOf[String]
-      app.profileManager.updateProfile(profile)
-    })
-
-    isProxyApps = findPreference(Key.proxyApps).asInstanceOf[SwitchPreference]
-    isProxyApps.setOnPreferenceClickListener(_ => {
-      startActivity(new Intent(activity, classOf[AppManager]))
-      isProxyApps.setChecked(true)
-      false
-    })
-    isProxyApps.setOnPreferenceChangeListener((_, value) => {
-      profile.proxyApps = value.asInstanceOf[Boolean]
-      app.profileManager.updateProfile(profile)
-    })
-
-    findPreference(Key.udpdns).setOnPreferenceChangeListener((_, value) => {
-      profile.udpdns = value.asInstanceOf[Boolean]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.auth).setOnPreferenceChangeListener((_, value) => {
-      profile.auth = value.asInstanceOf[Boolean]
-      app.profileManager.updateProfile(profile)
-    })
-    findPreference(Key.ipv6).setOnPreferenceChangeListener((_, value) => {
-      profile.ipv6 = value.asInstanceOf[Boolean]
-      app.profileManager.updateProfile(profile)
-    })
-
-    val switch = findPreference(Key.isAutoConnect).asInstanceOf[SwitchPreference]
-    switch.setOnPreferenceChangeListener((_, value) => {
-      BootReceiver.setEnabled(activity, value.asInstanceOf[Boolean])
-      true
-    })
-    if (getPreferenceManager.getSharedPreferences.getBoolean(Key.isAutoConnect, false)) {
-      BootReceiver.setEnabled(activity, true)
-      getPreferenceManager.getSharedPreferences.edit.remove(Key.isAutoConnect).apply()
-    }
-    switch.setChecked(BootReceiver.getEnabled(activity))
-
-    val tfo = findPreference(Key.tfo).asInstanceOf[SwitchPreference]
-    tfo.setChecked(TcpFastOpen.sendEnabled)
-    tfo.setOnPreferenceChangeListener((_, v) => {
-      val value = v.asInstanceOf[Boolean]
-      val result = TcpFastOpen.enabled(value)
-      if (result != null && result != "Success.")
-        Snackbar.make(activity.findViewById(android.R.id.content), result, Snackbar.LENGTH_LONG).show()
-      value == TcpFastOpen.sendEnabled
-    })
-    if (!TcpFastOpen.supported) {
-      tfo.setEnabled(false)
-      tfo.setSummary(getString(R.string.tcp_fastopen_summary_unsupported, java.lang.System.getProperty("os.version")))
-    }
-
-    findPreference("recovery").setOnPreferenceClickListener(_ => {
-      app.track(TAG, "reset")
-      activity.recovery()
-      true
-    })
-
-    findPreference("about").setOnPreferenceClickListener(_ => {
-      app.track(TAG, "about")
-      val web = new WebView(activity)
-      web.loadUrl("file:///android_asset/pages/about.html")
-      web.setWebViewClient(new WebViewClient() {
-        override def shouldOverrideUrlLoading(view: WebView, url: String): Boolean = {
-          try {
-            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)))
-          } catch {
-            case _: android.content.ActivityNotFoundException => // Ignore
-          }
-          true
-        }
-      })
-
-      new AlertDialog.Builder(activity)
-        .setTitle(getString(R.string.about_title).formatLocal(Locale.ENGLISH, BuildConfig.VERSION_NAME))
-        .setNegativeButton(getString(android.R.string.ok), null)
-        .setView(web)
-        .create()
-        .show()
-      true
-    })
-  }
-
-  override def onDisplayPreferenceDialog(preference: Preference): Unit = preference.getKey match {
-    case Key.kcpcli => displayPreferenceDialog(Key.kcpcli, new KcpCliPreferenceDialogFragment())
-    case _ => super.onDisplayPreferenceDialog(preference)
-  }
-
-  def refreshProfile() {
-    profile = app.currentProfile match {
-      case Some(p) => p
-      case None =>
-        app.profileManager.getFirstProfile match {
-          case Some(p) =>
-            app.profileId(p.id)
-            p
-          case None =>
-            val default = app.profileManager.createDefault()
-            app.profileId(default.id)
-            default
-        }
-    }
-    isProxyApps.setChecked(profile.proxyApps)
-  }
-
-  override def onDestroy() {
-    super.onDestroy()
-    app.settings.unregisterOnSharedPreferenceChangeListener(this)
-  }
-
-  def onSharedPreferenceChanged(pref: SharedPreferences, key: String): Unit = key match {
-    case Key.isNAT =>
-      activity.handler.post(() => {
-        activity.detachService()
-        activity.attachServiceCallback()
-      })
-    case _ =>
-  }
-
-  private var enabled = true
-  def setEnabled(enabled: Boolean) {
-    this.enabled = enabled
-    for (name <- Key.isNAT #:: PROXY_PREFS.toStream #::: FEATURE_PREFS.toStream) {
-      val pref = findPreference(name)
-      if (pref != null) pref.setEnabled(enabled &&
-        (name != Key.proxyApps || Utils.isLollipopOrAbove || app.isNatEnabled))
-    }
-  }
-
-  var profile: Profile = _
-  def setProfile(profile: Profile) {
-    this.profile = profile
-    val demo = Build.VERSION.SDK_INT >= 25 && activity.getSystemService(classOf[UserManager]).isDemoUser
-    for (name <- Array(PROXY_PREFS, FEATURE_PREFS).flatten) updatePreference(findPreference(name), name, profile, demo)
-  }
-}
diff --git a/src/main/scala/com/github/shadowsocks/ToolbarFragment.scala b/src/main/scala/com/github/shadowsocks/ToolbarFragment.scala
new file mode 100644
index 00000000..8cc554ea
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/ToolbarFragment.scala
@@ -0,0 +1,17 @@
+package com.github.shadowsocks
+
+import android.app.Fragment
+import android.os.Bundle
+import android.support.v7.widget.Toolbar
+import android.view.View
+
+class ToolbarFragment extends Fragment {
+  var toolbar: Toolbar = _
+
+  override def onViewCreated(view: View, savedInstanceState: Bundle) {
+    super.onViewCreated(view, savedInstanceState)
+    toolbar = view.findViewById(R.id.toolbar).asInstanceOf[Toolbar]
+    val activity = getActivity.asInstanceOf[MainActivity]
+    activity.drawer.setToolbar(activity, toolbar, true)
+  }
+}
diff --git a/src/main/scala/com/github/shadowsocks/database/Profile.scala b/src/main/scala/com/github/shadowsocks/database/Profile.scala
index 467571c4..b431b1e8 100644
--- a/src/main/scala/com/github/shadowsocks/database/Profile.scala
+++ b/src/main/scala/com/github/shadowsocks/database/Profile.scala
@@ -23,8 +23,10 @@ package com.github.shadowsocks.database
 import java.net.URLEncoder
 import java.util.Locale
 
+import android.content.SharedPreferences
 import android.os.Binder
 import android.util.Base64
+import com.github.shadowsocks.utils.Key
 import com.j256.ormlite.field.{DataType, DatabaseField}
 
 class Profile {
@@ -32,7 +34,7 @@ class Profile {
   var id: Int = 0
 
   @DatabaseField
-  var name: String = "Untitled"
+  var name: String = ""
 
   @DatabaseField
   var host: String = ""
@@ -100,4 +102,41 @@ class Profile {
     '#' + URLEncoder.encode(name, "utf-8")
 
   def isMethodUnsafe: Boolean = "table".equalsIgnoreCase(method) || "rc4".equalsIgnoreCase(method)
+
+  def serialize(editor: SharedPreferences.Editor): SharedPreferences.Editor = editor
+    .putString(Key.name, name)
+    .putString(Key.host, host)
+    .putInt(Key.localPort, localPort)
+    .putInt(Key.remotePort, remotePort)
+    .putString(Key.password, password)
+    .putString(Key.route, route)
+    .putString(Key.remoteDns, remoteDns)
+    .putBoolean(Key.proxyApps, proxyApps)
+    .putBoolean(Key.bypass, bypass)
+    .putBoolean(Key.udpdns, udpdns)
+    .putBoolean(Key.auth, auth)
+    .putBoolean(Key.ipv6, ipv6)
+    .putString(Key.individual, individual)
+    .putBoolean(Key.kcp, kcp)
+    .putInt(Key.kcpPort, kcpPort)
+    .putString(Key.kcpcli, kcpcli)
+  def deserialize(pref: SharedPreferences) {
+    // It's assumed that default values are never used, so 0/false/null is always used even if that isn't the case
+    name = pref.getString(Key.name, null)
+    host = pref.getString(Key.host, null)
+    localPort = pref.getInt(Key.localPort, 0)
+    remotePort = pref.getInt(Key.remotePort, 0)
+    password = pref.getString(Key.password, null)
+    route = pref.getString(Key.route, null)
+    remoteDns = pref.getString(Key.remoteDns, null)
+    proxyApps = pref.getBoolean(Key.proxyApps, false)
+    bypass = pref.getBoolean(Key.bypass, false)
+    udpdns = pref.getBoolean(Key.udpdns, false)
+    auth = pref.getBoolean(Key.auth, false)
+    ipv6 = pref.getBoolean(Key.ipv6, false)
+    individual = pref.getString(Key.individual, null)
+    kcp = pref.getBoolean(Key.kcp, false)
+    kcpPort = pref.getInt(Key.kcpPort, 0)
+    kcpcli = pref.getString(Key.kcpcli, null)
+  }
 }
diff --git a/src/main/scala/com/github/shadowsocks/utils/Constants.scala b/src/main/scala/com/github/shadowsocks/utils/Constants.scala
index 31fb551c..00489c41 100644
--- a/src/main/scala/com/github/shadowsocks/utils/Constants.scala
+++ b/src/main/scala/com/github/shadowsocks/utils/Constants.scala
@@ -151,8 +151,6 @@ object Key {
   val localPort = "localPortNum"
   val remoteDns = "remoteDns"
 
-  val profileTip = "profileTip"
-
   val kcp = "kcp"
   val kcpPort = "kcpPort"
   val kcpcli = "kcpcli"
@@ -170,9 +168,14 @@ object State {
 }
 
 object Action {
-  val SERVICE = "com.github.shadowsocks.SERVICE"
-  val CLOSE = "com.github.shadowsocks.CLOSE"
-  val QUICK_SWITCH = "com.github.shadowsocks.QUICK_SWITCH"
+  final val SERVICE = "com.github.shadowsocks.SERVICE"
+  final val CLOSE = "com.github.shadowsocks.CLOSE"
+  final val CONNECTED = "com.github.shadowsocks.CONNECTED"  // TODO
+  final val PROFILE_CHANGED = "com.github.shadowsocks.PROFILE_CHANGED"
+  final val PROFILE_REMOVED = "com.github.shadowsocks.PROFILE_REMOVED"
+  final val QUICK_SWITCH = "com.github.shadowsocks.QUICK_SWITCH"
+
+  final val EXTRA_PROFILE_ID = "com.github.shadowsocks.EXTRA_PROFILE_ID"
 }
 
 object Route {
diff --git a/src/main/scala/com/github/shadowsocks/utils/Typefaces.scala b/src/main/scala/com/github/shadowsocks/utils/Typefaces.scala
new file mode 100644
index 00000000..0a638bb5
--- /dev/null
+++ b/src/main/scala/com/github/shadowsocks/utils/Typefaces.scala
@@ -0,0 +1,28 @@
+package com.github.shadowsocks.utils
+
+import java.util
+
+import android.content.Context
+import android.graphics.Typeface
+import android.util.Log
+import com.github.shadowsocks.ShadowsocksApplication.app
+
+object Typefaces {
+  def get(c: Context, assetPath: String): Typeface = {
+    cache synchronized {
+      if (!cache.containsKey(assetPath)) {
+        try {
+          cache.put(assetPath, Typeface.createFromAsset(c.getAssets, assetPath))
+        } catch {
+          case e: Exception =>
+            Log.e("Typefaces", "Could not get typeface '" + assetPath + "' because " + e.getMessage)
+            app.track(e)
+            return null
+        }
+      }
+      return cache.get(assetPath)
+    }
+  }
+
+  private final val cache = new util.Hashtable[String, Typeface]
+}
diff --git a/src/main/scala/com/github/shadowsocks/widget/FloatingActionMenuBehavior.scala b/src/main/scala/com/github/shadowsocks/widget/FloatingActionMenuBehavior.scala
deleted file mode 100644
index 815370a9..00000000
--- a/src/main/scala/com/github/shadowsocks/widget/FloatingActionMenuBehavior.scala
+++ /dev/null
@@ -1,85 +0,0 @@
-/*******************************************************************************/
-/*                                                                             */
-/*  Copyright (C) 2016 by Max Lv <max.c.lv@gmail.com>                          */
-/*  Copyright (C) 2016 by Mygod Studio <contact-shadowsocks-android@mygod.be>  */
-/*                                                                             */
-/*  This program is free software: you can redistribute it and/or modify       */
-/*  it under the terms of the GNU General Public License as published by       */
-/*  the Free Software Foundation, either version 3 of the License, or          */
-/*  (at your option) any later version.                                        */
-/*                                                                             */
-/*  This program is distributed in the hope that it will be useful,            */
-/*  but WITHOUT ANY WARRANTY; without even the implied warranty of             */
-/*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              */
-/*  GNU General Public License for more details.                               */
-/*                                                                             */
-/*  You should have received a copy of the GNU General Public License          */
-/*  along with this program. If not, see <http://www.gnu.org/licenses/>.       */
-/*                                                                             */
-/*******************************************************************************/
-
-package com.github.shadowsocks.widget
-
-import android.animation.ValueAnimator
-import android.content.Context
-import android.support.design.widget.CoordinatorLayout
-import android.support.design.widget.CoordinatorLayout.Behavior
-import android.support.design.widget.Snackbar.SnackbarLayout
-import android.support.v4.view.animation.FastOutSlowInInterpolator
-import android.util.AttributeSet
-import android.view.View
-import com.github.clans.fab.FloatingActionMenu
-
-import scala.collection.JavaConverters._
-
-/**
-  * Behavior for com.github.clans.fab.FloatingActionMenu that is aware of Snackbars and scrolling.
-  *
-  * @author Mygod
-  */
-class FloatingActionMenuBehavior(context: Context, attrs: AttributeSet)
-  extends Behavior[FloatingActionMenu](context, attrs) {
-  private var fabTranslationYAnimator: ValueAnimator = _
-  private var fabTranslationY: Float = _
-
-  override def layoutDependsOn(parent: CoordinatorLayout, child: FloatingActionMenu, dependency: View): Boolean =
-    dependency.isInstanceOf[SnackbarLayout]
-
-  override def onDependentViewChanged(parent: CoordinatorLayout, child: FloatingActionMenu,
-                                      dependency: View): Boolean = {
-    dependency match {
-      case _: SnackbarLayout =>
-        var targetTransY = parent.getDependencies(child).asScala
-          .filter(view => view.isInstanceOf[SnackbarLayout] && parent.doViewsOverlap(child, view))
-          .map(view => view.getTranslationY - view.getHeight).reduceOption(_ min _).getOrElse(0F)
-        if (targetTransY > 0) targetTransY = 0
-        if (fabTranslationY != targetTransY) {
-          val currentTransY = child.getTranslationY
-          if (fabTranslationYAnimator != null && fabTranslationYAnimator.isRunning) fabTranslationYAnimator.cancel()
-          if (child.isShown && Math.abs(currentTransY - targetTransY) > child.getHeight * 0.667F) {
-            if (fabTranslationYAnimator == null) {
-              fabTranslationYAnimator = new ValueAnimator
-              fabTranslationYAnimator.setInterpolator(new FastOutSlowInInterpolator)
-              fabTranslationYAnimator.addUpdateListener(animation =>
-                child.setTranslationY(animation.getAnimatedValue.asInstanceOf[Float]))
-            }
-            fabTranslationYAnimator.setFloatValues(currentTransY, targetTransY)
-            fabTranslationYAnimator.start()
-          } else child.setTranslationY(targetTransY)
-          fabTranslationY = targetTransY
-        }
-    }
-    false
-  }
-
-  override def onStartNestedScroll(parent: CoordinatorLayout, child: FloatingActionMenu, directTargetChild: View,
-                                   target: View, nestedScrollAxes: Int) = true
-  override def onNestedScroll(parent: CoordinatorLayout, child: FloatingActionMenu, target: View, dxConsumed: Int,
-                              dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int) {
-    super.onNestedScroll(parent, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed)
-    val dy = dyConsumed + dyUnconsumed
-    if (child.isMenuButtonHidden) {
-      if (dy < 0) child.showMenuButton(true)
-    } else if (dy > 0) child.hideMenuButton(true)
-  }
-}