android 横向切换 activity

@Override
  public void onBackPressed() {
      super.onBackPressed();
   overridePendingTransition(R.anim.activity_move_back2, R.anim.activity_move_back);
  } 
 
 
 
 overridePendingTransition(R.anim.activity_move,
        R.anim.activity_move2); 
 
 
 
//activity_move_back.xml
<?xml version="1.0" encoding="utf-8"?>
 <set xmlns:android="​​​http://schemas.android.com/apk/res/android​​​">
 <translate
     android:fromXDelta="0"
     android:toXDelta="480"
     android:duration="300"  
  />   </set>
 
 
 
//activity_move_back2.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="​​http://schemas.android.com/apk/res/android​​​">
 <translate
     android:fromXDelta="-480"
     android:toXDelta="0"
     android:duration="300"  
  /> 
 </set> 
 
 
 
 
//activity_move.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="​​http://schemas.android.com/apk/res/android​​​">
 <translate
     android:fromXDelta="480"
     android:toXDelta="0"
     android:duration="300"  
  /> 
 </set> 
 
//activity_move2.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="​​http://schemas.android.com/apk/res/android​​​">
 <translate
     android:fromXDelta="0"
     android:toXDelta="-480"
     android:duration="300"  
  /> 
 </set>