public void setBackgroundColor(int color){
		super.setBackgroundColor(getResources().getColor(android.R.color.transparent));
		if(isEnabled())
			beforeBackground = backgroundColor;
		this.backgroundColor = color;
	}
Draw second animation of view
@param canvas
MaterialDesignLibrary/MaterialDesign/src/main/java/com/gc/materialdesign/views/ProgressBarCircularIndeterminate.java