Question

我在玩一个游戏,我想要一个柜台。它从200开始,然后从1开始,减少约0。它是我的代码:

public class GameView extends View{

private int count = 200;
private TimeCountThread timeCountThread;

public GameView(Context context, AttributeSet attrs) {
    super(context, attrs);
    timeCountThread = new TimeCountThread();
            timeCountThread.start();
}
protected void onDraw(Canvas canvas) {
    Paint paint = new Paint();
    paint.setColor(Color.WHITE);
    canvas.drawText("Time :"+count, 10, 35, paint);
}

public class TimeCountThread extends Thread{
    public void run(){
        while(count > 0){
            try {
                sleep(1000);
                count--;
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}

public boolean onTouchEvent(MotionEvent event){
    if(event.getAction()==MotionEvent.ACTION_DOWN){
        int x1=(int) event.getX();
        int y1=(int) event.getY();
        Toast.makeText(getContext(), "x1 = "+x1+", y1 ="+y1,1).show();
    }
    return true;
}
}

Why the counter don t activity .Please help me? Thanks

Answer 1

我想要一个柜台。它从200开始, 然后1减约0

您可以通过"http:// developmenter.android.com/ reference/android/os/CountDownTimer.html" rel=“no follow” >CountDownTimer 实现它。

Answer 2

尝试使用内部可运行的处理器。例如 :

Handler handler=new Handler();
Runnable r=new Runnable() {
    public void run() {
        count--;
        if(count > 0) {
            handler.postDelayed(this, 1000);
        }              
    }
};
if(count > 0) {
    handler.postDelayed(r, 1000);
}

所在地区

timeCountThread = new TimeCountThread();
        timeCountThread.start();

另一个问题是,你的计数是私人的, 但我不认为那会有什么区别。

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