@Override
    public boolean performClick() {
        final TouchEffectDrawable d = mTouchDrawable;

        if (d != null) {
            return d.performClick(this) && super.performClick();
        } else
            return super.performClick();
    }
Update the background color of the circle image view.

@param colorRes Id of a color resource.
caprice/ui/src/main/java/net/qiujuer/genius/ui/widget/FloatActionButton.java