diff --git a/app/src/main/java/com/huanchengfly/tieba/post/activities/ReplyActivity.kt b/app/src/main/java/com/huanchengfly/tieba/post/activities/ReplyActivity.kt
index bd34d1c4..041d8160 100644
--- a/app/src/main/java/com/huanchengfly/tieba/post/activities/ReplyActivity.kt
+++ b/app/src/main/java/com/huanchengfly/tieba/post/activities/ReplyActivity.kt
@@ -6,6 +6,7 @@ import android.content.Intent
 import android.content.Intent.ACTION_VIEW
 import android.content.pm.PackageManager
 import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
 import android.net.Uri
 import android.os.Bundle
 import android.text.Editable
@@ -119,9 +120,12 @@ class ReplyActivity : BaseActivity(), View.OnClickListener,
             ThemeUtil.setTranslucentBackground(constraintLayout)
         }
         Util.setStatusBarTransparent(this)
+        val decor = window.decorView as ViewGroup
+        val decorChild = decor.getChildAt(0) as ViewGroup
+        decorChild.setBackgroundColor(Color.TRANSPARENT)
         window.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
-        window.decorView.setBackgroundColor(resources.getColor(R.color.transparent))
-        window.setBackgroundDrawableResource(R.drawable.bg_trans)
+        window.decorView.setBackgroundColor(Color.TRANSPARENT)
+        window.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
         initData()
         initView()
         if (appPreferences.postOrReplyWarning) showDialog {
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 7c39006e..c100911d 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -287,11 +287,13 @@
 
     <style name="AppTheme.Floating" parent="AppTheme">
         <item name="android:windowIsFloating">true</item>
-        <item name="android:windowBackground">@color/transparent</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowIsTranslucent">true</item>
         <item name="android:windowAnimationStyle">@style/Animation.Bottom</item>
         <item name="android:windowTranslucentStatus">true</item>
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:colorBackgroundCacheHint">@null</item>
+        <item name="android:windowContentOverlay">@null</item>
     </style>
 
     <style name="AppTheme.PhotoView" parent="Theme.MaterialComponents.Light.NoActionBar">