我自己写了个GameView，然后在Avtivity里面setContentView（gameView），在GameView那边的run方法中将游戏结束信息传递给Activity，然后Activity用setContentView（R.···）换布局，我试过了，可以把消息传过来，但是执行setContentView（R.···）会报空引用的错误，现在就是要当GameView那边游戏结束时候通知Avtivity更换布局，通知传递过来了，但是处理就出错了，请大牛们帮忙看下，
Activity里面的代码如下
- Java code
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); gameView=new GameView(this); setContentView(gameView); gameOver.post(gameView.MyThread);}public Handler gameOver = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: System.out.println("gameover```````````````````");//这句话可以打印 setContentView(R.layout.choose_layout);//就是这里出错了 break; default: break; } }};GameView代码如下：Runnable MyThread =new Runnable (){ public void run() { while (flag) { canvas = holder.lockCanvas(); · · · · holder.unlockCanvasAndPost(canvas); //GameOver处理 if (endGame()){ Message msg = gameViewActivity.gameOver.obtainMessage(); msg.arg1 = GAME_OVER;//GAME_OVER=1 gameViewActivity.gameOver.sendMessage(msg); } } }};------解决方案--------------------
project->clearn
refresh(F5)
试试