A custom modal transition that presents and dismiss a controller inside an expanding and shrinking bubble.

Screenshot

Usage

Install through Cocoapods:

pod 'BubbleTransition', '~> 1.0.0'

use_frameworks!

Install through Carthage:

github "andreamazz/BubbleTransition"

Swift 1.2

Version 1.0.0 targets Swift 2, if you are building with version 1.2 checkout the swift-1.2 branch.

pod 'BubbleTransition', git: 'https://github.com/andreamazz/BubbleTransition', branch: 'swift-1.2'

use_frameworks!

#Setup Have your viewcontroller conform to UIViewControllerTransitioningDelegate. Set the transitionMode, the startingPoint, the bubbleColor and the duration.

let transition = BubbleTransition()

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

// MARK: UIViewControllerTransitioningDelegate

func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
    transition.transitionMode = .Present
    transition.startingPoint = someButton.center
    transition.bubbleColor = someButton.backgroundColor!
    return transition
}

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

You can find the Objective-C equivalent here.

#Properties

var startingPoint = CGPointZero

The point that originates the bubble.

var duration = 0.5

The transition duration.

var transitionMode: BubbleTranisionMode = .Present

The transition direction. Either .Present, .Dismiss or .Pop.

var bubbleColor: UIColor = .whiteColor()

The color of the bubble. Make sure that it matches the destination controller's background color.

Checkout the sample project for the full implementation.

#Author Andrea Mazzini. I'm available for freelance work, feel free to contact me.

Want to support the development of these free libraries? Buy me a coffee ☕️ via Paypal.

#Contributors Thanks to everyone kind enough to submit a pull request.

#MIT License

Copyright (c) 2015 Andrea Mazzini. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.