Awesome

AZTransitions

Make your modal transition with custom animation. AZTransitions helps you think about creativity, giving specific API methods.

Visual Example

Inside this repository you can try iOS Example target with example FashionTransition.swift class:

Animation example

Installation

Add the following to your Podfile and run pod install

pod 'AZTransitions'

or add the following to your Cartfile and run carthage update

github "azimin/AZTransitions"

if you are using Swift Package Manager just add it to the dependencies value of your Package.swift

dependencies: [
    .package(url: "https://github.com/azimin/AZTransitions.git", .upToNextMajor(from: "0.26.0"))
]

or clone as a git submodule,
or just copy AZTransitions/Source/CustomModalTransition.swift into your project.

Code Example

To create any custom transition just subclass CustomModalTransition:

class FashionTransition: CustomModalTransition { 
  override init() {
    super.init(duration: 0.5)
  }
}

Then set as az_modalTransition to nessesary view just before presenting it

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
  segue.destination.customModalTransition = FashionTransition()
}

func show() {
  let viewController = UIViewController()
  viewController.customModalTransition = FashionTransition()
  self.present(viewController, animated: true, completion: nil)
}

To have custom present animation, just implement performTransition(interactive: Bool) inside your FashionTransition class:

func performTransition(interactive: Bool) {
  self.presentedViewController.view.alpha = 0.0
    
  UIView.animate(withDuration: duration, animations: {
    self.presentedViewController.view.alpha = 1.0
    self.presentingViewController.view.alpha = 0.0
  }, completion: { (completed) in
    self.presentingViewController.view.alpha = 1.0
    self.finishAnimation(completion: nil)
  })
}

As you may have guessed, you have different properties. The main ones:

duration — transition duration
presentingViewController — the presenting view controller (bottom one)
presentedViewController — view controller that is going to be presented (top one)

You can animate them as you want.

🔥IMPORTANT🔥 don't forget to call finishAnimation(completion: nil) in the end.

In this case animation will be:

Animation code example

UIModalPresentationStyle

Of course sometimes you want to use diffenret modal presentation styles (for example overCurrentContext), in this case you can call setCustomModalTransition(customModalTransition: CustomModalTransition, inPresentationStyle: UIModalPresentationStyle) of UIViewController instead of setting customModalTransition directly.

You have different properties and methods to help you: