android - 尽量减少按下后退键时的 Activity

Question

OnBack 按键 我想最小化应用程序，我该怎么做 这？？？

public boolean onKeyDown(int keyCode, KeyEvent event) {

   if (keyCode == KeyEvent.KEYCODE_BACK) {

           //Here i want to put minimize code.. pls give me this statement

       return true;
   }
   return super.onKeyDown(keyCode, event);

谢谢

Answer 1

public boolean onKeyDown(int keyCode, KeyEvent event)  
    {
         if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0)
         {
            this.moveTaskToBack(true);
            return true;
         }
        return super.onKeyDown(keyCode, event);
    }

这会将 Activity 发送到后台。参见 documentation以供进一步引用。