public ViewSkeletonScreen.Builder angle(@IntRange(from = 0, to = 30) int shimmerAngle) {
            this.mShimmerAngle = shimmerAngle;
            return this;
        }
@param shimmerAngle the angle of the shimmer effect in clockwise direction in degrees.
subs/skeleton/src/main/java/com/ethanhua/skeleton/ViewSkeletonScreen.java