java - onTouch() 未触发

Question

我发现当我停止在屏幕上移动手指时，Android onTouch 事件不会被触发，因此我无法正确获取游戏中每个刻度的指针计数。

@Override
public boolean onTouch(View v, MotionEvent e) {
    pointerCount = e.getPointerCount();
}

有人有办法解决吗？

Answer 1

试试这个:

sound1.setOnTouchListener(new OnTouchListener() {
 public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
    pressed1 = true;
    mp1 = MediaPlayer.create(MainClass.this, R.raw.item1);
    mp1.start();
    sound1.setBackgroundResource(R.drawable.pad_pressed);
    if (looping == true) {
        mp1.setLooping(true);
    } else if (looping == false) {
        mp1.setLooping(false);
    }
    return true;

} else if (event.getAction() == android.view.MotionEvent.ACTION_UP) {
    pressed1 = false;
    mp1.stop();
    mp1.reset();
    mp1.release();
    sound1.setBackgroundResource(R.drawable.pad_normal);
    return true;
}
return false;
  }});