diff --git a/mobile/src/main/java/com/github/shadowsocks/utils/Utils.kt b/mobile/src/main/java/com/github/shadowsocks/utils/Utils.kt
index e328fcff..95b3b9b7 100644
--- a/mobile/src/main/java/com/github/shadowsocks/utils/Utils.kt
+++ b/mobile/src/main/java/com/github/shadowsocks/utils/Utils.kt
@@ -9,6 +9,7 @@ import android.support.annotation.AttrRes
 import android.support.v4.app.Fragment
 import android.support.v4.app.FragmentManager
 import android.support.v7.util.SortedList
+import android.view.accessibility.AccessibilityManager
 import android.util.TypedValue
 import com.github.shadowsocks.App.Companion.app
 import com.github.shadowsocks.JniHelper
@@ -21,6 +22,11 @@ private val fieldChildFragmentManager by lazy {
     field
 }
 
+fun isAccessibilityEnabled(context: Context): Boolean {
+    val am = context.getSystemService(Context.ACCESSIBILITY_SERVICE) as AccessibilityManager
+    return am.isEnabled()
+}
+
 fun String.isNumericAddress() = JniHelper.parseNumericAddress(this) != null
 fun String.parseNumericAddress(): InetAddress? {
     val addr = JniHelper.parseNumericAddress(this)
diff --git a/mobile/src/main/java/com/github/shadowsocks/widget/MoveUpwardBehavior.kt b/mobile/src/main/java/com/github/shadowsocks/widget/MoveUpwardBehavior.kt
index c29759c4..1e5b14e0 100644
--- a/mobile/src/main/java/com/github/shadowsocks/widget/MoveUpwardBehavior.kt
+++ b/mobile/src/main/java/com/github/shadowsocks/widget/MoveUpwardBehavior.kt
@@ -32,6 +32,8 @@ import android.support.v4.view.ViewCompat
 import android.util.AttributeSet
 import android.view.View
 
+import com.github.shadowsocks.utils.isAccessibilityEnabled
+
 /**
  * Full credits go to: https://stackoverflow.com/a/35904421/2245107
  */
@@ -40,7 +42,7 @@ class MoveUpwardBehavior : CoordinatorLayout.Behavior<View> {
     constructor(context: Context, attrs: AttributeSet) : super(context, attrs)
 
     override fun layoutDependsOn(parent: CoordinatorLayout, child: View, dependency: View): Boolean =
-            dependency is Snackbar.SnackbarLayout
+        dependency is Snackbar.SnackbarLayout
 
     override fun onDependentViewChanged(parent: CoordinatorLayout, child: View, dependency: View): Boolean {
         child.translationY = Math.min(0f, dependency.translationY - dependency.height)
@@ -51,21 +53,25 @@ class MoveUpwardBehavior : CoordinatorLayout.Behavior<View> {
      * Based on BaseTransientBottomBar.animateViewOut (support lib 27.0.2).
      */
     override fun onDependentViewRemoved(parent: CoordinatorLayout, child: View, dependency: View) {
-        val animator = ValueAnimator()
-        val start = child.translationY
-        animator.setFloatValues(start, 0f)
-        animator.interpolator = SnackbarAnimation.FAST_OUT_SLOW_IN_INTERPOLATOR
-        animator.duration = SnackbarAnimation.ANIMATION_DURATION
-        animator.addUpdateListener(object : ValueAnimator.AnimatorUpdateListener {
-            private var previousValue = start
+        if (!isAccessibilityEnabled(parent.getContext())) {
+            val animator = ValueAnimator()
+            val start = child.translationY
+            animator.setFloatValues(start, 0f)
+            animator.interpolator = SnackbarAnimation.FAST_OUT_SLOW_IN_INTERPOLATOR
+            animator.duration = SnackbarAnimation.ANIMATION_DURATION
+            animator.addUpdateListener(object : ValueAnimator.AnimatorUpdateListener {
+                private var previousValue = start
 
-            override fun onAnimationUpdate(animator: ValueAnimator) {
-                val currentValue = animator.animatedValue as Float
-                if (Build.VERSION.SDK_INT > 19) child.translationY = currentValue
-                else ViewCompat.offsetTopAndBottom(child, (currentValue - previousValue).toInt())
-                previousValue = currentValue
-            }
-        })
-        animator.start()
+                override fun onAnimationUpdate(animator: ValueAnimator) {
+                    val currentValue = animator.animatedValue as Float
+                    if (Build.VERSION.SDK_INT > 19) child.translationY = currentValue
+                    else ViewCompat.offsetTopAndBottom(child, (currentValue - previousValue).toInt())
+                    previousValue = currentValue
+                }
+            })
+            animator.start()
+        } else {
+            child.translationY = 0f
+        }
     }
 }
diff --git a/mobile/src/main/res/layout/layout_main.xml b/mobile/src/main/res/layout/layout_main.xml
index 6a19589c..47397e14 100644
--- a/mobile/src/main/res/layout/layout_main.xml
+++ b/mobile/src/main/res/layout/layout_main.xml
@@ -13,8 +13,7 @@
         android:id="@+id/fragment_holder"
         android:background="?android:attr/windowBackground"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:layout_behavior="com.github.shadowsocks.widget.BottomMarginBehavior"/>
+        android:layout_height="match_parent" />
 
     <LinearLayout
         android:id="@+id/stat"