@Override
    public void setBounds(int left, int top, int right, int bottom) {
        int w = right - left;
        super.setBounds(w / 2 - mDiameter / 2, top, w / 2 + mDiameter / 2, mDiameter + top);
    }
Set the colors used in the progress animation from color resources.
The first color will also be the color of the bar that grows in response
to a user swipe gesture.

@param colors
library/src/main/java/com/baoyz/widget/MaterialDrawable.java