func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
    transition.transitionMode = .Dismiss
    transition.startingPoint = transitionButton.center
    transition.bubbleColor = transitionButton.backgroundColor!
    return transition
}

Demo project, tested on simulator iOS8.3/iOS8.4 and on iPhone 5s iOS8.4

Hello @andreamazz ,

First of thanks for the great work. Library works awesome.

I'm not sure if my problem is directly linked to bubbleTransition, but I'm noticing a lag on the FIRST button press. From there on after, its smooth as butter.

Note: The startingPoint is incorrect because it appears somewhere on the top though I don't think its CGPointZero but a little under the navigation bar and centered horizontally. This is weird because I specified it as below and that button is at the bottom of the screen. I'm not sure if the button lagged without bubbleTransition.

@IBOutlet var starButton: SpringButton! 

I create the segue using storyboard and just do:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "feedback" {
        let controller = segue.destinationViewController
        controller.transitioningDelegate = self
        controller.modalPresentationStyle = .Custom
    }
}

extension ViewController: UIViewControllerTransitioningDelegate {

func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
    transition.transitionMode = .Present
    transition.startingPoint = starButton.center
    transition.bubbleColor = UIColor(red: 245.0/255.0, green: 192.0/255.0, blue: 24.0/255.0, alpha: 1)
    return transition
}

func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
    transition.transitionMode = .Dismiss
    transition.startingPoint = starButton.center
    transition.bubbleColor = UIColor(red: 245.0/255.0, green: 192.0/255.0, blue: 24.0/255.0, alpha: 1)
    return transition
}

}

Hi, friend! Thanks for you great work. Here is a problem. The destinationViewController's autolayout doesn't work after I user BubbleTransition to present it.

Can you give me some ideas?

Thanks!

I would like to use this as a modal menu for presenting options to the user. Something like:

Can you please give me an idea of how I can achieve this?

I am using the button inside my Navbar like:

Right bar button -> bar button items -> BubbleBtn

But when I set: transition.startingPoint = BubbleBtn.center it will make the transition start form the very top right corner of my screen:

How can I make it start from the center of the button?

Hi, thanks for sharing the great work. It works well on my project, but my project needs the ability to keep accepting gestures of the user, wondering if this can be done with Bubble Transition?

Thanks to the author for the great library, very easy to use, however I can not run the dismissal effect on ios 9.3 and ios 12. Please check again. Thank you.

Hi! Your work is amazing however, i am not into Swift. I imported your file, created the necessary bridging header and everything compiles, however i don't know how to "activate" the transition and use the delegates. Could you please provide an objective-c example? Thanks in advance.

Hi,

I'm running into a problem where transitioningDelegate is set the VC is presented with the custom transition but at some point, the transitioningDelegate is nil and so when its dismissed, the transition is the regular dismiss one.

I understand that transitioningDelegate is a weak property but the VC is not deinit'd as I retain a reference to it in my presenting VC

Note 1: when I check transitioningDelegate in the viewDidLoad() of the presented VC, its the assigned BubbleTransitionDelegate class as expected, but when I'm about to dismiss it, transitioningDelegate is nil

Note 2: the only thing I can think of that I'm doing differently, is that I'm extending UIViewController to have a new present(bubble VC)() method as such:

extension UIViewController {
    func present( bubble viewController: UIViewController, from target: UIView?, presentingColor: UIColor = OMColor.red, dismissingColor: UIColor = OMColor.white, completion: (() -> ())?) {
        
        let bubbleTransitionDelegate = BubbleTransitionDelegate(target: target, presentingColor: presentingColor, dismissingColor: dismissingColor)

        viewController.transitioningDelegate = bubbleTransitionDelegate
        viewController.modalPresentationStyle = .custom
        
        self.present(viewController, animated: true) { 
            completion?()
        }
    }
}

I want to add as a child view controller to a container view; is this possible? Because when present a view controller it is displayed on the top above all the other content.

Thanks for this library! But after I added it to my project using cocoapods, I can't use BubbleInteractiveTransition class. However, I can use BubbleTransition. And I checked "BubbleTransition.swift" file, it seems that there is no BubbleInteractiveTransition class at all. I don't why this happens.

The warning "The unbalanced calls to begin/end appearance transitions" seems to occur on my UINavigationViewController when i tries to present another controller.

Hello,

First of all, thank you for sharing your work, it's great!

I would like to know if you ever considered adding an optional UIImage to be used as a bubble background?

It would be a nice improvement I feel.

Cordially,