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我是安卓新手。目前正在为Android构建一个简单的游戏。

我的问题是当按下主页按钮时,它会调用 onPause(),有时它会同时调用 onPause() 和 onStop()。但是,当我尝试返回游戏(通过单击主屏幕中的图标)时,既不会调用 onResume() 也不会调用 onRestart()。游戏一直在渲染,但我无法与游戏互动。触摸事件不起作用。当我尝试触摸按钮时,什么也没有发生,几秒钟后,它说“没有响应”,然后我必须强制关闭。

顺便提一句。我还注意到,当转到主屏幕时,会调用 MainGamePanel 中的 surfaceDestroyed() 函数。我以为这个函数会阻塞线程,但实际上线程在主屏幕时仍在运行。

有人可以告诉我为什么 onRestart() 或 onResume() 没有触发以及为什么从主屏幕返回游戏后触摸事件不起作用?

非常感谢。

我重写 onStop()、onPause()、onResume 和 onRestart() 以在调用函数时在日志中输出一条消息:

@Override
    protected void onStop() {
        Log.d(TAG, "Stopping...");
        super.onStop();
    }

下面是我的活动和表面视图的代码。我有一个 ActivityMainGame 扩展了 Activity:

public class ActivityMainGame extends Activity 
{
    private MainGamePanel mainGamePanel;

    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_game);

        Log.w(TAG, "Creating the game");

        //set our MainGamePanel as the view
        mainGamePanel = new MainGamePanel(this);
        setContentView(mainGamePanel);
    }
}

我创建了一个 MainGamePanel 扩展了 SurfaceView 实现了 SurfaceHolder.Callback,这个类启动了一个线程来在画布上渲染东西:

public class MainGamePanel extends SurfaceView implements SurfaceHolder.Callback 
{
    private MainGameThread thread;

    public MainGamePanel(Context context) 
    {
        super(context);
        // adding the callback (this) to the surface holder to intercept events
        getHolder().addCallback(this);

        // create the game loop thread
        thread = new MainGameThread(getHolder(), this);

        // make the GamePanel focusable so it can handle events
        setFocusable(true);
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) 
    {
        if (thread.getState() == Thread.State.NEW)
        {
            thread.setRunning(true);
            thread.start();
        }
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder)
    {
        boolean retry = true;
        while (retry)
        {
            try
            {
                thread.join();
                retry = false;
            }
            catch (InterruptedException e)
            {
                Log.d(TAG, e.getMessage());
            }
        }
    }

应阿迪尔的要求,我将错误信息放在 logcat 中。这些是我的游戏被强制关闭时的消息:

03-11 15:04:21.491: E/ActivityManager(58): ANR in com.myslotgame (com.myslotgame /.ActivityMainGame)
03-11 15:04:21.491: E/ActivityManager(58): Reason: keyDispatchingTimedOut
03-11 15:04:21.491: E/ActivityManager(58): Load: 0.52 / 0.19 / 0.18
03-11 15:04:21.491: E/ActivityManager(58): CPU usage from 551359ms to 51ms ago:
03-11 15:04:21.491: E/ActivityManager(58):   system_server: 4% = 3% user + 0% kernel / faults: 5766 minor
03-11 15:04:21.491: E/ActivityManager(58):   adbd: 0% = 0% user + 0% kernel / faults: 55 minor
03-11 15:04:21.491: E/ActivityManager(58):   m.android.phone: 0% = 0% user + 0% kernel / faults: 17 minor
03-11 15:04:21.491: E/ActivityManager(58):   ndroid.launcher: 0% = 0% user + 0% kernel / faults: 1625 minor
03-11 15:04:21.491: E/ActivityManager(58):   qemud: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58):   events/0: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58):   zygote: 0% = 0% user + 0% kernel / faults: 1201 minor
03-11 15:04:21.491: E/ActivityManager(58):   id.defcontainer: 0% = 0% user + 0% kernel / faults: 77 minor
03-11 15:04:21.491: E/ActivityManager(58):   logcat: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58):   rild: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58):   ndroid.settings: 0% = 0% user + 0% kernel / faults: 9 minor
03-11 15:04:21.491: E/ActivityManager(58):   roid.alarmclock: 0% = 0% user + 0% kernel / faults: 14 minor
03-11 15:04:21.491: E/ActivityManager(58):   re-initialized>: 0% = 0% user + 0% kernel / faults: 7 minor
03-11 15:04:21.491: E/ActivityManager(58):   d.process.media: 0% = 0% user + 0% kernel / faults: 9 minor
03-11 15:04:21.491: E/ActivityManager(58):   com.android.mms: 0% = 0% user + 0% kernel / faults: 16 minor
03-11 15:04:21.491: E/ActivityManager(58):  +myslotgame: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58):  -myslotgame: 0% = 0% user + 0% kernel
03-11 15:04:21.491: E/ActivityManager(58): TOTAL: 7% = 6% user + 1% kernel + 0% irq + 0% softirq
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2 回答 2

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onStop()不保证会被调用,因为Android有时可能不得不在后台提前结束游戏而不事先通知,但onPause()总是会被调用!因此,在该onPause()方法中,执行您在停止时会执行的操作,例如结束渲染线程,但您也可以放置一个 if 语句,if (isFinishing())并执行您在活动实际结束时执行的操作。注意:如果您的活动扩展了类,您

只能使用该方法,您的类在此实例中。isFinishing()ActivityActivityMainGame

于 2013-03-11T14:31:28.540 回答
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我认为当您进入主屏幕时,将调用 onPause 和 onStop 和 onDestroy。您可以在强制关闭后发布 logcat。

于 2013-03-11T14:31:48.450 回答