         setStrokeTimer(timer)
     }
     
+    /// true is wait for stroke animation.
     public func stopAnimation(waitAnimation: Bool, completion: ((SpringIndicator) -> Void)? = nil) {
         if waitAnimation {
             stopAnimationsHandler = { indicator in


// MARK: - Refresher end
public extension SpringIndicator.Refresher {
    public func endRefreshing() {
        refreshing = false
        


// MARK: - Stroke
public extension SpringIndicator {
    /// between 0.0 and 1.0.
    public func strokeRatio(ratio: CGFloat) {
        if ratio <= 0 {
            pathLayer = nil
