diff --git a/src/main/res/layout/layout_profiles_item.xml b/src/main/res/layout/layout_profiles_item.xml
index 8bb44a46..9ddabbb8 100644
--- a/src/main/res/layout/layout_profiles_item.xml
+++ b/src/main/res/layout/layout_profiles_item.xml
@@ -42,7 +42,7 @@
                                                               android:layout_gravity="top"
                                                               app:srcCompat="@drawable/ic_social_share"
                                                               android:background="?attr/selectableItemBackgroundBorderless"
-                                                              android:contentDescription="Share"
+                                                              android:contentDescription="@string/share"
                                                               android:focusable="true"
                                                               android:nextFocusLeft="@+id/container"/>
                 <android.support.v7.widget.AppCompatImageView android:id="@+id/edit"
@@ -52,7 +52,7 @@
                     android:layout_gravity="top"
                     app:srcCompat="@drawable/ic_image_edit"
                     android:background="?attr/selectableItemBackgroundBorderless"
-                    android:contentDescription="Edit"
+                    android:contentDescription="@string/edit"
                     android:focusable="true"/>
             </LinearLayout>
             <LinearLayout android:layout_width="match_parent"
diff --git a/src/main/res/values-zh-rCN/strings.xml b/src/main/res/values-zh-rCN/strings.xml
index 8f8f8489..1c6d193b 100644
--- a/src/main/res/values-zh-rCN/strings.xml
+++ b/src/main/res/values-zh-rCN/strings.xml
@@ -42,7 +42,10 @@
   <string name="stopping">正在关闭……</string>
   <string name="vpn_error">后台服务启动失败：%s</string>
   <string name="reboot_required">VPN 服务启动失败。你可能需要重启设备。</string>
+  <string name="yes">是</string>
+  <string name="no">否</string>
   <string name="close">关闭</string>
+  <string name="profile_empty">请选择配置文件</string>
   <string name="proxy_empty">代理服务器地址及密码不能为空</string>
   <string name="connect">连接</string>
   <string name="initializing">正在初始化……</string>
@@ -59,6 +62,7 @@
   <string name="flush_dnscache_summary">只需在 NAT 模式下使用，需要 ROOT 权限</string>
   <string name="flush_dnscache_no_root">在没有 ROOT 权限的情况下无法刷新 DNS 缓存</string>
   <string name="flushing">刷新中……</string>
+  <string name="edit">编辑</string>
   <string name="share">分享</string>
   <string name="share_message">扫描二维码或使用 Android Beam (NFC)</string>
   <string name="share_message_without_nfc">扫描二维码</string>
@@ -95,6 +99,9 @@
   <string name="profile_manager_dialog_content">&#8226; 点击选择配置文件；\n&#8226; 向左/右滑动或按左删除；\n&#8226;
     长按拖动改变顺序。</string>
   <string name="gotcha">好的</string>
+  <string name="profile_config">配置文件设置</string>
+  <string name="unsaved_changes_prompt">保存修改吗？</string>
+  <string name="delete_confirm_prompt">你是否确定要删除这个配置文件？</string>
   <string name="copy_url">复制 URL</string>
   <string name="add_profile_dialog">为影梭添加此配置文件？</string>
   <string name="add_profile_methods_scan_qr_code">扫描二维码</string>
diff --git a/src/main/res/values-zh-rTW/strings.xml b/src/main/res/values-zh-rTW/strings.xml
index 99b76076..8998c6af 100644
--- a/src/main/res/values-zh-rTW/strings.xml
+++ b/src/main/res/values-zh-rTW/strings.xml
@@ -43,7 +43,10 @@
   <string name="stopping">關閉中……</string>
   <string name="vpn_error">%s</string>
   <string name="reboot_required">VPN 服務啟動失敗。您或許需要重新啟動您的裝置。</string>
+  <string name="yes">是</string>
+  <string name="no">否</string>
   <string name="close">關閉</string>
+  <string name="profile_empty">請選擇設定檔</string>
   <string name="proxy_empty">Proxy 或密碼不可以空白</string>
   <string name="connect">連線</string>
   <string name="initializing">起始中……</string>
@@ -60,6 +63,7 @@
   <string name="flush_dnscache_summary">僅在 NAT 模式可用，需要 ROOT 權限</string>
   <string name="flush_dnscache_no_root">在無 ROOT 權限時清除 DNS 快取無法進行</string>
   <string name="flushing">清除中……</string>
+  <string name="edit">編輯</string>
   <string name="share">分享</string>
   <string name="share_message">掃描 QR 碼或者使用 Android Beam (NFC)</string>
   <string name="share_message_without_nfc">掃描 QR 碼</string>
@@ -96,6 +100,9 @@
   <string name="profile_manager_dialog_content">&#8226; 輕觸選擇一個設定檔；\n&#8226; 向左/右撥動或按左移除；\n&#8226;
     按住後上下撥動設定檔重新排序。</string>
   <string name="gotcha">我懂了！</string>
+  <string name="profile_config">設定檔配置</string>
+  <string name="unsaved_changes_prompt">要保存更改嗎？</string>
+  <string name="delete_confirm_prompt">您確定要移除這個設定檔嗎？</string>
   <string name="copy_url">複製 URL</string>
   <string name="add_profile_dialog">為 Shadowsocks 新增此設定檔？</string>
   <string name="add_profile_methods_scan_qr_code">掃描 QR 碼</string>
diff --git a/src/main/res/values/strings.xml b/src/main/res/values/strings.xml
index 2006b67b..0f956cba 100644
--- a/src/main/res/values/strings.xml
+++ b/src/main/res/values/strings.xml
@@ -83,9 +83,13 @@
   <string name="vpn_error">%s</string>
   <string name="reboot_required">Failed to start VPN service. You might need to reboot your device.</string>
   <string name="quick_switch">Switch</string>
+  <string name="profile_invalid_input">No valid profile data found.</string>
 
   <!-- alert category -->
+  <string name="yes">Yes</string>
+  <string name="no">No</string>
   <string name="close">Close</string>
+  <string name="profile_empty">Please select a profile</string>
   <string name="proxy_empty">Proxy/Password should not be empty</string>
   <string name="connect">Connect</string>
   <string name="initializing">Initializing…</string>
@@ -100,6 +104,7 @@
   <string name="recovery_summary">Reset all the background services</string>
   <string name="about">About</string>
   <string name="about_title">Shadowsocks %s</string>
+  <string name="edit">Edit</string>
   <string name="share">Share</string>
   <string name="share_message">Scan QR code or use Android Beam (NFC)</string>
   <string name="share_message_without_nfc">Scan QR code</string>
@@ -123,6 +128,9 @@
   <string name="profile_manager_dialog_content">&#8226; Tap to select a profile;\n&#8226; Swipe left/right or press left
     to remove;\n&#8226; Long press to reorder profiles.</string>
   <string name="gotcha">Gotcha!</string>
+  <string name="profile_config">Profile config</string>
+  <string name="unsaved_changes_prompt">Changes not saved. Do you want to save?</string>
+  <string name="delete_confirm_prompt">Are you sure you want to remove this profile?</string>
   <string name="add_profile_dialog">Add this Shadowsocks Profile?</string>
   <string name="add_profile_methods_scan_qr_code">Scan QR code</string>
   <string name="add_profile_methods_manual_settings">Manual Settings</string>
diff --git a/src/main/scala/com/github/shadowsocks/BaseService.scala b/src/main/scala/com/github/shadowsocks/BaseService.scala
index e51517df..285354f0 100644
--- a/src/main/scala/com/github/shadowsocks/BaseService.scala
+++ b/src/main/scala/com/github/shadowsocks/BaseService.scala
@@ -113,7 +113,7 @@ trait BaseService extends Service {
 
     override def use(profileId: Int): Unit = synchronized(if (profileId < 0) stopRunner(stopService = true) else {
       val profile = app.profileManager.getProfile(profileId).orNull
-      if (profile == null) stopRunner(stopService = true, "Please select a profile.") else state match {  // TODO: localize
+      if (profile == null) stopRunner(stopService = true, getString(R.string.profile_empty)) else state match {
         case State.STOPPED => if (checkProfile(profile)) startRunner(profile)
         case State.CONNECTED => if (profileId != BaseService.this.profile.id && checkProfile(profile)) {
           stopRunner(stopService = false)
diff --git a/src/main/scala/com/github/shadowsocks/MainActivity.scala b/src/main/scala/com/github/shadowsocks/MainActivity.scala
index 4a00ef5f..8e47b8da 100644
--- a/src/main/scala/com/github/shadowsocks/MainActivity.scala
+++ b/src/main/scala/com/github/shadowsocks/MainActivity.scala
@@ -99,7 +99,6 @@ class MainActivity extends Activity with ServiceBoundContext with Drawer.OnDrawe
     case _: NullPointerException =>
   }
   private def changeState(s: Int, profileName: String = null, m: String = null) {
-    // TODO: localize texts for statusText in this method
     s match {
       case State.CONNECTING =>
         fab.setImageResource(R.drawable.ic_start_busy)
@@ -314,17 +313,17 @@ class MainActivity extends Activity with ServiceBoundContext with Drawer.OnDrawe
     if (TextUtils.isEmpty(sharedStr)) return
     val profiles = Parser.findAll(sharedStr).toList
     if (profiles.isEmpty) {
-      // TODO: show error msg
+      Snackbar.make(findViewById(R.id.snackbar), R.string.profile_invalid_input, Snackbar.LENGTH_LONG).show()
       return
     }
-    val dialog = new AlertDialog.Builder(this)
+    new AlertDialog.Builder(this)
       .setTitle(R.string.add_profile_dialog)
-      .setPositiveButton("Yes", ((_, _) =>  // TODO
+      .setPositiveButton(R.string.yes, ((_, _) =>
         profiles.foreach(app.profileManager.createProfile)): DialogInterface.OnClickListener)
-      .setNegativeButton("No", null)
+      .setNegativeButton(R.string.no, null)
       .setMessage(profiles.mkString("\n"))
       .create()
-    dialog.show()
+      .show()
   }
 
   def onSharedPreferenceChanged(pref: SharedPreferences, key: String): Unit = key match {
diff --git a/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala b/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala
index 8f64e327..22314ce2 100644
--- a/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala
+++ b/src/main/scala/com/github/shadowsocks/ProfileConfigActivity.scala
@@ -35,7 +35,7 @@ class ProfileConfigActivity extends Activity {
     super.onCreate(savedInstanceState)
     setContentView(R.layout.layout_profile_config)
     val toolbar = findViewById(R.id.toolbar).asInstanceOf[Toolbar]
-    toolbar.setTitle("Profile config")  // TODO
+    toolbar.setTitle(R.string.profile_config)
     toolbar.setNavigationIcon(R.drawable.ic_navigation_close)
     toolbar.setNavigationOnClickListener(_ => onBackPressed())
     toolbar.inflateMenu(R.menu.profile_config_menu)
@@ -43,9 +43,9 @@ class ProfileConfigActivity extends Activity {
   }
 
   override def onBackPressed(): Unit = if (app.settings.getBoolean(Key.dirty, false)) new AlertDialog.Builder(this)
-    .setTitle("Changes not saved. Do you want to save?") // TODO: localizations
-    .setPositiveButton("Yes", ((_, _) => child.saveAndExit()): DialogInterface.OnClickListener)
-    .setNegativeButton("No", ((_, _) => finish()): DialogInterface.OnClickListener)
+    .setTitle(R.string.unsaved_changes_prompt)
+    .setPositiveButton(R.string.yes, ((_, _) => child.saveAndExit()): DialogInterface.OnClickListener)
+    .setNegativeButton(R.string.no, ((_, _) => finish()): DialogInterface.OnClickListener)
     .setNeutralButton(android.R.string.cancel, null)
     .create()
     .show() else super.onBackPressed()
diff --git a/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala b/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala
index d8952daa..4cbdef10 100644
--- a/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala
+++ b/src/main/scala/com/github/shadowsocks/ProfileConfigFragment.scala
@@ -83,12 +83,12 @@ class ProfileConfigFragment extends PreferenceFragment with OnMenuItemClickListe
   override def onMenuItemClick(item: MenuItem): Boolean = item.getItemId match {
     case R.id.action_delete =>
       new AlertDialog.Builder(getActivity)
-        .setTitle("Confirm?") // TODO
-        .setPositiveButton("Yes", ((_, _) => {
+        .setTitle(R.string.delete_confirm_prompt)
+        .setPositiveButton(R.string.yes, ((_, _) => {
           app.profileManager.delProfile(profile.id)
           getActivity.finish()
         }): DialogInterface.OnClickListener)
-        .setNegativeButton("No", null)
+        .setNegativeButton(R.string.no, null)
         .create()
         .show()
       true