volume 按钮的使用_点点滴滴

public boolean onKeyDown(int keyCode, KeyEvent event)  
{  
   if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN || keyCode == KeyEvent.KEYCODE_VOLUME_UP) {  
       //Do your thing  
   } else { 
       return super.onKeyDown(keyCode, event);  
   } 
} 
public boolean onKeyDown(int keyCode, KeyEvent