修改部分UI

rong_im/common_im_ui/src/main/res/layout/activity_chat_group_setting.xml

@@ -4,7 +4,6 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@color/color_f6f8f9"
     android:orientation="vertical">
 
     <include

student/src/main/res/values/styles.xml

@@ -5,6 +5,7 @@
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
+        <item name="android:windowBackground">@color/color_f6f8f9</item>
     </style>
 
     <style name="SplashTheme" parent="AppTheme">

teacher/src/main/res/layout/activity_bind_card_success.xml

@@ -3,7 +3,6 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@color/color_f6f8f9"
     android:orientation="vertical">
 
     <include