并非所有触摸事件都被Android视图接收

Question

在我的Android应用中，我有一个自定义的View ，可以接收触摸事件。 但是，它不会在我每次触摸时都做出反应-只是有时。 据我所知，如果我触摸屏幕，先移动手指，然后放开-即使我只移动一点，事件也会被拾取，但是如果我点击屏幕的速度太快，手指无法在屏幕上滑动， 什么都没发生。 我怎样才能解决这个问题？

这是View的代码：

public class SpeedShooterGameView extends GameActivity.GameView {
    public SpeedShooterGameView(Context arg0, AttributeSet arg1) {
        super(arg0, arg1);
    }

    @Override
    protected GameThread getNewThread(SurfaceHolder holder, Context context) {
        return new SpeedShooterGameThread(holder, context);
    }

    // Program is driven by screen touches
    public boolean onTouchEvent(MotionEvent event) {
        SpeedShooterGameThread thread = (SpeedShooterGameThread) getThread();
        if (thread.isRunning()) {
            return thread.recieveTouch(event);
        } else {
             return false;
        }
    }
}

我非常有信心在SpeedShooterGameThread thread = (SpeedShooterGameThread) getThread();行中返回的对象SpeedShooterGameThread thread = (SpeedShooterGameThread) getThread(); 可以正常工作，但是如果上面的代码看起来不错，我也将发布该类中的相关代码。 当thread.recieveTouch(event); 调用后， MotionEvent将被发送到另一个线程。

编辑：我将继续发布SpeedShooterGameThread的代码：

public class SpeedShooterGameThread extends GameActivity.GameView.GameThread {
    //... snip ...
    private Queue<MotionEvent> touchEventQueue;

    //... snip ...

    public synchronized final void newGame() { //called from the constructor, used to go to a known stable state
        //... snip ...
        touchEventQueue = new LinkedList<MotionEvent>();
        //... snip ...
    }

    //...snip...

    public synchronized boolean recieveTouch(MotionEvent event) {
        return touchEventQueue.offer(event);
    }

    private synchronized void processTouchEvents() {
        synchronized (touchEventQueue) {
            while (!touchEventQueue.isEmpty()) {
                MotionEvent event = touchEventQueue.poll();
                if (event == null) {
                    continue;
                }
                //... snip ....
            }
        }
    }

    //... snip ...
}

Answer 1

我通过完全Queue<MotionEvent>修复了该错误。 我的代码现在看起来像这样：

线程不再使用Queue ，并且MotionEvents时立即得到处理recieveTouch()被调用：

public class SpeedShooterGameThread extends GameActivity.GameView.GameThread {
//The touchEvent member has been removed.

//... snip ...

    public synchronized final void newGame() { //called from the constructor, used to go to a known stable state
        // touchEvents is no longer initialized.

        //...snip...
    }

    //...snip...

    public synchronized boolean recieveTouch(MotionEvent event) {
        //Immediately handle the MotionEvent here,
        //or return false if the event isn't processed
    }

    // The processTouchEvents() method is removed.

    //... snip ...
}

该视图不变：

public class SpeedShooterGameView extends GameActivity.GameView {
    public SpeedShooterGameView(Context arg0, AttributeSet arg1) {
        super(arg0, arg1);
    }

    @Override
    protected GameThread getNewThread(SurfaceHolder holder, Context context) {
        return new SpeedShooterGameThread(holder, context);
    }

    // Program is driven by screen touches
    public boolean onTouchEvent(MotionEvent event) {
        SpeedShooterGameThread thread = (SpeedShooterGameThread) getThread();
        if (thread.isRunning()) {
            return thread.recieveTouch(event);
        } else {
             return false;
        }
    }
}