每当用户的手指不触摸屏幕时，我都想让游戏暂停

Question

As I said, I would like to make my game only run when the user is touching the screen. So far I have:

public boolean onTouchEvent(MotionEvent e) {


    // Get finger's X and Y position
    float x = e.getX();
    float y = e.getY();

    if(x > startPlaying.left || x < startPlaying.right && y < startPlaying.bottom && y > startPlaying.top) {

        Playing = true;         
    }

    if (Playing == true) {


                switch (e.getAction()) {
                case MotionEvent.ACTION_MOVE:
                    playerX = x;
                    playerY = y;
                case MotionEvent.ACTION_UP:
                    Playing = false;
                }

            }

    return true;
}

Im thinking theres a problem with the 2 cases not being able to work together but im not really sure, im new to java. Any suggestions or fixes?

@Override protected void onDraw(Canvas canvas) {

    if (Playing == true) {          
        rowSpeed = -2;
        rowSpeed -= 0.0002f;
        scoreCounter += 0.005;

    } else {
        rowSpeed = 0;
        rowSpeed -= 0f;
        scoreCounter += 0;
    }

Answer 1

The normal way to do a switch statement is

switch (e.getAction()) {
            case MotionEvent.ACTION_MOVE:
                playerX = x;
                playerY = y;
                break;                      // any reason you do not want this?
            case MotionEvent.ACTION_UP:
                Playing = false;
            }