Android 多个ImageView图片层叠透明区域点击事件穿透

来源：互联网发布：dnf安徒恩优化补丁编辑：程序博客网时间：2024/05/23 12:55

经常用到多个透明图片层叠，但又需要获取不同图片的点击事件，本文实现图片透明区域穿透点击事件。

实现人体各个部位点击

内部类

private class MyOnTouchListener implements OnTouchListener {private ImageView touchImageView;private Bitmap touchBitmap;private int normal_iv;private int press_iv;public MyOnTouchListener(ImageView touchImageView, Bitmap touchBitmap,int normal_iv, int press_iv) {super();this.touchImageView = touchImageView;this.touchBitmap = touchBitmap;this.normal_iv = normal_iv;this.press_iv = press_iv;}@Overridepublic boolean onTouch(View v, MotionEvent event) {LogUtils.i(TAG, "onTouch。。。");switch (event.getAction()) {case MotionEvent.ACTION_DOWN:LogUtils.i(TAG, "ACTION_DOWN ");downOrMove(event);break;case MotionEvent.ACTION_MOVE:LogUtils.i(TAG, "ACTION_MOVE ");downOrMove(event);break;case MotionEvent.ACTION_UP:LogUtils.i(TAG, "ACTION_UP ");touchImageView.setImageResource(normal_iv);break;default:break;} return false;}private void downOrMove(MotionEvent event) {Matrix inverse = new Matrix();touchImageView.getImageMatrix().invert(inverse);float[] touchPoint = new float[] { event.getX(), event.getY() };inverse.mapPoints(touchPoint);int xCoord = Integer.valueOf((int) touchPoint[0]);int yCoord = Integer.valueOf((int) touchPoint[1]);if((xCoord >= 0 && xCoord < touchBitmap.getWidth()) && (yCoord >=0 &&  yCoord < touchBitmap.getHeight())) {if (touchBitmap.getPixel(xCoord, yCoord) == 0) {touchImageView.setImageResource(normal_iv);} else {touchImageView.setImageResource(press_iv);}}}}

activity中实现

@Overridepublic boolean onTouchEvent(MotionEvent event) {switch (event.getAction()) {case MotionEvent.ACTION_DOWN:LogUtils.i(TAG, "Activity ACTION_DOWN ");break;case MotionEvent.ACTION_MOVE:LogUtils.i(TAG, "Activity ACTION_MOVE ");break;case MotionEvent.ACTION_UP:LogUtils.i(TAG, "Activity ACTION_UP ");cancelAllIv();break;default:break;}return super.onTouchEvent(event);}

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