Android 一些动画

https://github.com/OCNYang/Android-Animation-Set

点击出发一个小圆   ripple

 View view1 = helper.getView(R.id.item_linear_jpk2);
        int[] attrs = new int[]{R.attr.selectableItemBackground};
        TypedArray typedArray = mContext.obtainStyledAttributes(attrs);
        int backgroundResource = typedArray.getResourceId(0, 0);
        view1.setBackgroundResource(backgroundResource);