Runtime asset coloring in Android

ColoredDrawable.java

public static Drawable getColoredDrawable(Context context, int whiteDrawableResId, int targetColor) {
    Drawable drawable = context.getResources().getDrawable(whiteDrawableResId);
    ColorFilter filter = new LightingColorFilter(targetColor, 0);
    drawable.mutate().setColorFilter(filter);
    return drawable;
}

The white drawable is colored with a LightingColorFilter. As documentation states,LightingColorFilter "multiplies the RGB channels by one color, and then adds a second color". If the source drawable is pure white, multiplying by the target color and adding zero will give you a drawable with the exact color you passed!