Android -多个手指触摸，只需一个按钮

Button button = findViewById(R.id.button);

button.setOnTouchListener(new View.OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        int action = event.getActionMasked();
        int pointerCount = event.getPointerCount();

        switch (action) {
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_POINTER_DOWN:
                // 处理手指按下事件
                break;
            case MotionEvent.ACTION_MOVE:
                // 处理手指移动事件
                break;
            case MotionEvent.ACTION_UP:
            case MotionEvent.ACTION_POINTER_UP:
                // 处理手指抬起事件
                break;
        }

        return true;
    }
});