java - 如何为多个 ImageView 设置触摸监听器？

Question

我为我的 ImageView“汽车”创建了一个 onTouchListener，并想为另一个 ImageView 做同样的事情，但我不知道如何做。所以我的问题是:

如何使用一个 onTouchListener 来检测两个独立 ImageView 的 MotionEvent 并相应地发生某些事情？

@Override
public boolean onTouch(View view, MotionEvent event) {

    //int action = event.getAction();
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                carcolor.setBackgroundColor(this.getResources().getColor(R.color.colorPrimary));

                car.startAnimation(pressdown);
                pressdown.setAnimationListener(new Animation.AnimationListener() {

                    @Override
                    public void onAnimationStart(Animation animation) {
                        carback.setScaleX((float) 0.9);
                        carback.setScaleY((float) 0.9);
                    }

                    @Override
                    public void onAnimationEnd(Animation animation) {
                        carback.setVisibility(View.VISIBLE);
                        car.setVisibility(View.INVISIBLE);
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {

                    }
                });

                break;

            case MotionEvent.ACTION_MOVE:
                break;

            case MotionEvent.ACTION_UP:
                car.startAnimation(release);

                carcolor.setBackgroundColor(this.getResources().getColor(R.color.unpressed));

                release.setAnimationListener(new Animation.AnimationListener() {

                    @Override
                    public void onAnimationStart(Animation animation) {
                        carback.setVisibility(View.INVISIBLE);
                    }

                    @Override
                    public void onAnimationEnd(Animation animation) {
                        car.setVisibility(View.VISIBLE);
                    }

                    @Override
                    public void onAnimationRepeat(Animation animation) {

                    }
                });


                break;

            case MotionEvent.ACTION_CANCEL:
                break;
        }
        return true;

    }

Answer 1

您应该像这样实现 onTouchListener:

        imageView.setOnTouchListener(this);

并像这样初始化它:

@Override
public boolean onTouch(View v, MotionEvent event) {
    ImageView view = (ImageView) v;
    switch (view.getId()){
        case R.id.car1: // example id
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    break;
                case MotionEvent.ACTION_MOVE:
                    break;
                case MotionEvent.ACTION_UP:
                    break;
                case MotionEvent.ACTION_CANCEL:
                    break;
            }
            break;
        case R.id.car2: // example id
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    break;
                case MotionEvent.ACTION_MOVE:
                    break;
                case MotionEvent.ACTION_UP:
                    break;
                case MotionEvent.ACTION_CANCEL:
                    break;
            }
            break;
    }
    return true;
}