There is my code :

let ballSize = self.view.bounds.size.width / 12
        _pullToBounce = PullToBounceWrapper(scrollView: _collectionView,
            bounceDuration: 0.8,  /
            ballSize: ballSize,  
            ballMoveTimingFunc: CAMediaTimingFunction(controlPoints:0.49,0.13,0.29,1.61),
            moveUpDuration: 0.25, 
            pullDistance: ballSize * 2, 
            bendDistance: ballSize * 1.8, 
            didPullToRefresh: {  
                // test
                NSTimer.schedule(delay: 6) {
                    [unowned self] timer in
                    self._pullToBounce?.stopLoadingAnimation()
                }
            })

The ballSize is related to Screen bound,
when i set bendDistance as benDistance * 1.8, the code works well on iPhone 6s but crashes on iPhone 5s, and then i set bendDistance as benDistance * 1.9 it crashes on iPhone 6s but works well on iPhone 5s.

What is the connection between Screen size and bendDistance on different devices?

when i used snp layout llike
`
func createTableview() -> Void {
let changeCityTableView = ChangeCityTableView()
self.view.addSubview(changeCityTableView)
changeCityTableView.snp.makeConstraints { (make) in
make.edges.equalToSuperview()
}

    let tableViewWrapper = PullToBounceWrapper(scrollView: changeCityTableView)
    self.view.addSubview(tableViewWrapper)

    tableViewWrapper.didPullToRefresh = {
        Timer.schedule(delay: 2) { timer in
            tableViewWrapper.stopLoadingAnimation()
        }
    }
}

`
a crash open
assert(false, "Wow, scrollView.frame is CGRectZero. Please set frame size.")

I saw that you updated the repo to swift 3 however cocoa pods still has the swift 2 version. Could you please update the cocoa pod?

I want to know if there is a way to start the loading animation programmatically

How should I wrap UITableView if I'm using UITableViewController?

Tried to apply this to a UITableViewController. Here are the codes:

override func viewDidLoad() {
super.viewDidLoad()

let bodyView = UIView()
bodyView.frame = self.view.frame
bodyView.frame.y += 20 + 44
self.view.addSubview(bodyView)

// pull to refresh usage
let tableViewWrapper = PullToBounceWrapper(scrollView: tableView)
bodyView.addSubview(tableViewWrapper)

tableViewWrapper.didPullToRefresh = {
  NSTimer.schedule(delay: 2) { timer in
    tableViewWrapper.stopLoadingAnimation()
  }
}

// createHeader()

}

Terminating app due to uncaught exception 'CALayerInvalid', reason: 'layer <CALayer: 0x7fd501f5dc60> is a part of cycle in its layer tree'. Anyone else have this issue?

App is not working in the xcode 9.2 with the minimum deployment 9.0

Can't install with Carthage

it'd be cool to have a swift 3 version, if you have any interest to create a branch i would like to help with that.

Can you please provide a objective c version of your code snippet?

Certain things not available when downloading straight from github and can not find replacement

Pull to Refresh is really awesome. Add some guidelines to use your controls in Objective-C Project

I have tried to get this working in my project in Swift 4 but when i add the control, my scrollview content doesn't load and it just loads with a white view in the scrollview.

MY view hierarchy is as follows:
UIViewController -> View -> ScrollView -> 3x UIViews & 3x UICollectionViews

The scrollview is implemented via the storyboard with the layout constraints that is is aligned top, leading, trailing, bottom to the main view controller view.

I want to add the pull to refresh to my scrollview

I have done the following code, and tried variations but it doesn't work:

// Please wrap your scroll view
scrollView.frame = self.view.frame
let tableViewWrapper = PullToBounceWrapper(scrollView: scrollView)
// Please add wrapper view to your view instead of your scroll view.
self.view.addSubview(tableViewWrapper)

I've also tried creating a new UIview bodyview per your tutorial:
let bodyView = UIView()
bodyView.frame = scrollView.frame
let tableViewWrapper = PullToBounceWrapper(scrollView: scrollView)
bodyView.add(tableViewWrapper)
self.view.addSubview(bodyView)

I'm either missing something very simple, or something isn't working and would appreciate some guidance if you're able to!

As the issue title says, I am trying to use it with a scrollView made via the storyboard. Do you guys know how to implement it, and use it ?

Regards,

Hary.

Can't seem to access any of the methods in objective c?

It seems that swift 2 does not accept the '#' syntax for the function arguments.

This can cause compiling error.