<jianpan.com.mybutton.view.RippleDiffuse android:layout_width="200dp" android:layout_height="200dp" app:btn_img_res="@drawable/rd" app:ripple_img_res="@drawable/rd"></jianpan.com.mybutton.view.RippleDiffuse>

@Overrideprotected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, widthMeasureSpec); if (!mInitDataSucceed){ initData(); }}

private static final int ANIMATION_EACH_OFFSET = 800; // 每個動畫的播放時間間隔private static final int RIPPLE_VIEW_COUNT = 3;//波紋view的個數private static final float DEFAULT_SCALE = 1.6f;//波紋放大后的大小//點擊有擴散效果的viewprivate CircleImageView mBtnImg;private int mBtnViewHeight;private int mBtnViewWidth;private float mScale = DEFAULT_SCALE;//圖片資源private int mBtnImgRes;private int mRippleRes;//是否初始化完成private boolean mInitDataSucceed = false;private void initData(){ if (getMeasuredHeight() > 0 && getMeasuredWidth() > 0){ mInitDataSucceed = true; int height = getMeasuredHeight() - getPaddingTop() - getPaddingBottom(); int width = getMeasuredWidth() - getPaddingLeft() - getPaddingRight(); mBtnViewHeight = (int) (height / mScale); mBtnViewWidth = (int) (width / mScale); mBtnImg = new CircleImageView(getContext()); mBtnImg.setImageResource(mBtnImgRes); mBtnImg.setOnTouchListener(this); addView(mBtnImg, getWaveLayoutParams()); for (int i = 0; i < RIPPLE_VIEW_COUNT; i++){  //創建view  CircleImageView wave = createWave();  mWaves.add(wave);  //創建動畫  mAnimas.add(getNewAnimationSet());  addView(wave, 0, getWaveLayoutParams()); } }}private CircleImageView createWave(){ CircleImageView CircleImageView = new CircleImageView(getContext()); CircleImageView.setScaleType(ImageView.ScaleType.CENTER_CROP); CircleImageView.setImageResource(mRippleRes); return CircleImageView;}private LayoutParams getWaveLayoutParams(){ LayoutParams lp = new LayoutParams(mBtnViewWidth, mBtnViewHeight); return lp;}private AnimationSet getNewAnimationSet() { AnimationSet as = new AnimationSet(true); ScaleAnimation sa = new ScaleAnimation(1f, mScale, 1f, mScale,  ScaleAnimation.RELATIVE_TO_SELF, 0.5f,  ScaleAnimation.RELATIVE_TO_SELF, 0.5f); sa.setDuration(ANIMATION_EACH_OFFSET * 3); sa.setRepeatCount(-1);// 設置循環 AlphaAnimation aniAlp = new AlphaAnimation(1, 0.1f); aniAlp.setRepeatCount(-1);// 設置循環 as.setDuration(ANIMATION_EACH_OFFSET * 3); as.addAnimation(sa); as.addAnimation(aniAlp); return as;}

@Overrideprotected void onLayout(boolean changed, int left, int top, int right, int bottom) { if (mInitDataSucceed) { int childLeft = (getMeasuredWidth() - mBtnViewWidth) / 2; int childTop = (getMeasuredHeight() - mBtnViewHeight) / 2; for (int i = 0; i < RIPPLE_VIEW_COUNT; i++) {  CircleImageView wave = mWaves.get(i);  wave.layout(childLeft, childTop, mBtnViewWidth + childLeft, mBtnViewHeight + childTop); } mBtnImg.layout(childLeft, childTop, mBtnViewWidth + childLeft, mBtnViewHeight + childTop); }else { initData(); }}

@Overridepublic boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN:  showWaveAnimation();  break; case MotionEvent.ACTION_MOVE:  break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_CANCEL:  cancelWaveAnimation();  break; default:  cancelWaveAnimation();  break; } return true;}private void showWaveAnimation() { for (int i = 0; i < RIPPLE_VIEW_COUNT; i++){ Message message = new Message(); message.obj = i; handler.sendMessageDelayed(message, ANIMATION_EACH_OFFSET * i); }}private void cancelWaveAnimation() { for (int i = 0; i < RIPPLE_VIEW_COUNT; i++){ CircleImageView wave = mWaves.get(i); wave.clearAnimation(); }}private Handler handler = new Handler() { @Override public void handleMessage(Message msg) { int position = (int) msg.obj; CircleImageView wave = mWaves.get(position); wave.startAnimation(mAnimas.get(position)); super.handleMessage(msg); }};