更改菜单项的图标方向（DrawerLayout）Android？

Question

如何更改项目方向菜单？

我需要更改图标方向为RTL而不是LTR，我使用Gravity和Layout_Gravity但不起作用。

我该怎么办？下面是我的XML：

menu_start.xml：

<menu xmlns:android="http://schemas.android.com/apk/res/android"> 

    <group android:checkableBehavior="single"> 
     <item 
      android:id="@+id/nav_home" 
      android:icon="@drawable/circle" 
      android:title="@string/Search" /> 
     <item 
      android:id="@+id/nav_example_item_1" 
      android:icon="@drawable/circle" 
      android:title="Example Item #1" /> 
    </group> 

    <item android:title="Sub items"> 
     <menu> 
      <item 
       android:id="@+id/nav_example_sub_item_1" 
       android:title="Example Sub Item #1" /> 
     </menu> 
    </item> 

</menu> 

activity_start.xml：

<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:layout_gravity="right" 
    android:fitsSystemWindows="true"> 

    <RelativeLayout 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:orientation="vertical"> 

     <LinearLayout 
      android:id="@+id/KeepToolbar" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:orientation="vertical"> 

      <!-- We use a Toolbar so that our drawer can be displayed 
       in front of the action bar --> 
      <android.support.v7.widget.Toolbar 
       android:id="@+id/my_awesome_toolbar_Start" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:background="@color/ORANGE_700"> 

       <ImageView 
        android:id="@+id/drawer_indicator" 
        android:layout_width="30dp" 
        android:layout_height="30dp" /> 
      </android.support.v7.widget.Toolbar> 

      <!-- The rest of your content view --> 

     </LinearLayout> 


     <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      android:layout_width="fill_parent" 
      android:layout_height="fill_parent" 
      android:layout_below="@+id/KeepToolbar" 
      android:orientation="vertical"> 

      <ViewFlipper 
       android:id="@+id/viewflipper" 
       android:layout_width="match_parent" 
       android:layout_height="150dp" 
       android:autoStart="true" 
       android:background="@color/ORANGE_700" 
       android:inAnimation="@anim/right_in" 
       android:outAnimation="@anim/left_out"> 

       <ImageView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:src="@drawable/a" /> 

       <ImageView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:src="@drawable/b" /> 

       <ImageView 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:src="@drawable/c" /> 
      </ViewFlipper> 

      <android.support.v7.widget.RecyclerView 

       android:id="@+id/cardList" 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:dividerHeight="1dp" 
       android:scrollbarDefaultDelayBeforeFade="5000" 
       android:scrollbarFadeDuration="5000" 
       android:scrollbars="vertical" /> 
     </LinearLayout> 
    </RelativeLayout> 

    <android.support.design.widget.NavigationView 
     android:id="@+id/navigation" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:background="@drawable/background_color" 
     app:headerLayout="@layout/header_drawer" 
     app:menu="@menu/menu_start" /> 

</android.support.v4.widget.DrawerLayout> 

Answer 1

试试这个：首先添加{ android:supportsRtl="true" }到AndroidManifest.xml：

<application 
android:allowBackup="true" 
android:icon="@mipmap/ic_launcher" 
android:supportsRtl="true" > 

</application> 

然后在activity_start.xm升这两行添加到DrawerLayout：

android:layoutDirection="rtl" 
android:textDirection="anyRtl"