onTouchEvent不能@Override

Question

您好，我想使用Service实现GestureDetector

然而，我有这个错误，The method onTouchEvent(MotionEvent) of type GestureService must override or implement a supertype method

public class GestureService extends Service implements OnGestureListener {

private GestureDetector gestureScanner;

@Override
public IBinder onBind(Intent intent) {
    // TODO Auto-generated method stub
    return null;
}
@Override
public void onCreate() {
    super.onCreate();       
    Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_SHORT).show();
    gestureScanner = new GestureDetector(this);

}


@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Toast.makeText(getBaseContext(),"onStartCommand", Toast.LENGTH_SHORT).show();
    return START_STICKY;

 }

public boolean onTouchEvent(MotionEvent me) {

    return gestureScanner.onTouchEvent(me);
}

@Override
public boolean onDown(MotionEvent e) {
    // TODO Auto-generated method stub
    Toast.makeText(getBaseContext(),"onDown", Toast.LENGTH_SHORT).show();
    return false;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
        float velocityY) {
    // TODO Auto-generated method stub
    return false;
}
@Override
public void onLongPress(MotionEvent e) {
    // TODO Auto-generated method stub

}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
        float distanceY) {
    // TODO Auto-generated method stub
    return false;
}
@Override
public void onShowPress(MotionEvent e) {
    // TODO Auto-generated method stub

}
@Override
public boolean onSingleTapUp(MotionEvent e) {
    Toast.makeText(getBaseContext(),"onSingleTapUp", Toast.LENGTH_SHORT).show();
    // TODO Auto-generated method stub
    return false;
}
 }

有没有办法修复它，而不是像我怀疑的那样移除@Override，移除它是导致GestureDetector无法工作的原因。

Answer 1

OnGestureListener中没有导致错误的onTouchEvent (没有要覆盖的内容)。你到底想用这个事件做什么？您可以使用onDown和onSingleTapUp来模拟事件。但是，您可以从View监听onTouch()，但至少从您发布的内容中，我没有看到任何与View相关的代码。

Answer 2

尝尝这个

@Override
public boolean onTouchEvent(MotionEvent me) {
    if (gestureScanner.onTouchEvent(me))
        return true;
    else
        return false;
}

我希望这能行得通。