自定义Android菜单背景

public class MenuEx extends Activity {
  
  private static final String TAG = "android123";
  
  
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
        
     }
     
  
     
     @Override
  public boolean onCreateOptionsMenu(Menu menu) {
         super.onCreateOptionsMenu(menu);
   MenuInflater inflater = new MenuInflater(getApplicationContext());
   inflater.inflate(R.menu.options_menu, menu);
   setMenuBackground();
   return true;
  } 关键代码就是重写Layout类的工厂方法onCreateView，这里对比绘制的View来替换系统中的
  protected void setMenuBackground(){
      
      Log.d(TAG, "开始设置菜单的的背景");
      getLayoutInflater().setFactory( new Factory() {
       
       @Override
       public View onCreateView ( String name, Context context, AttributeSet attrs ) { 
     
        if ( name.equalsIgnoreCase( "com.android.internal.view.menu.IconMenuItemView" ) ) {     //上面这句Android123提醒大家不能有改动，目前来看对于原生android目前这个packageName还没有变化
         
         try {        LayoutInflater f = getLayoutInflater();
          final View view = f.createView( name, null, attrs );  //尝试创建我们自己布局
  
          new Handler().post( new Runnable() {
           public void run () {
            view.setBackgroundResource( R.drawable.cwj"_bg); //设置背景为我们自定义的图片，替换cwj_bg文件即可
           }
          } );
          return view;
         }
         catch ( InflateException e ) {}
         catch ( ClassNotFoundException e ) {}
        }
        return null;
       }
      });
     }
 }