Jelly provides custom view controller transitions with just a few lines of code. No need to create your own PresentationController or Animator-Objects. A Jelly-Animator will do the heavy lifting for you.
You can use Jelly to build your own Alert-Views or Slidein-Menus using ViewControllers designed by yourself.
To run the example project, clone the repo, and run pod install
from the Example directory first.
Jelly is super easy to use.
- Create a JellyPresentation Object
- Initialize a JellyAnimator using the JellyPresentation Object created in Step 1.
- Call the prepare(viewController:UIViewController) Function
- Finally call the native UIViewController presentation function.
override func viewDidLoad() {
super.viewDidLoad()
let viewController = self.storyboard.instantiateViewController(withIdentifier: "someViewController")
let presentation = JellySlideInPresentation()
self.jellyAnimator = JellyAnimator(presentation:presentation)
self.jellyAnimator?.prepare(viewController: viewController)
self.present(viewController, animated: true, completion: nil)
}
DO NOT FORGET TO KEEP A STRONG ๐ช REFERENCE
Because the transitioningDelegate of a UIViewController is weak, you need to hold a strong reference to the JellyAnimator inside the UIViewController you are presenting from
class CustomVC : UIViewController {
var jellyAnimator: JellyAnimator?
override func viewDidLoad() {
super.viewDidLoad()
// Setup your Animator here
// ....
// And assign it
self.jellyAnimator = createAnimator()
}
}
That's it. That's lit.
Jelly Supports two types of Presentations.
- JellySlideInPresentation
- JellyFadeInPresentation
Both share some propertys and each Property has a default value
- duration: JellyConstants.Duration (default: normal)
- ultraSlow = 2.0
- slow = 1.0
- medium = 0.5
- normal = 0.35
- fast = 0.2
- reallyFast = 0.1
- widthForViewController: JellyConstants.Size (default: fullscreen)
- If the container is smaller than the provided width Jelly will automatically resize to the containers width
- if Margin Guards are specified they also will be applied if width is to wide for the container
- heightForViewController: JellyConstants.Size (default: fullscreen)
- If the container is smaller than the provided height Jelly will automatically resize to the containers width
- if Margin Guards are specified they also will be applied when height is to high for the container
- horizontalAlignment: JellyConstants.HorizontalAlignment (default: .center)
- center, left or right
- verticalAlignemt: JellyConstants.VerticalAlignment (default:center)
- top, bottom, center
- marginGuards: default(UIEdgeInsets.zero)
- If the width or height is bigger than the container we are working with, marginGuards will kick in and limit the size using the specified margins
- backgroundStyle: JellyConstants.BackgroundStyle (default: dimmed)
- dimmed, blur(effectStyle), none
- cornerRadius: Double (default: 0)
- presentationCurve: JellyConstants.JellyCurve (default: linear)
- easeIn, easeOut, easeInEaseOut, linear
- dismissCurve: JellyConstants.JellyCurve (default: linear)
- easeIn, easeOut, easeInEaseOut, linear
JellyFadeInAnimation provides 3 extra Properties
- directionShow: JellyConstants.Direction (default: top)
- left, top, bottom, right
- directionDismiss: JellyConstants.Direction (default: top)
- left, top, bottom, right
- jellyness: (default: none)
- none (damping = 1.0, velocity = 0.0)
- jelly (damping = 0.7, velocity = 2)
- jellier (damping = 0.5 , velocity = 3)
- jelliest (damping = 0.2, velocity = 4)
let customPresentation = JellySlideInPresentation(dismissCurve: .linear,
presentationCurve: .linear,
cornerRadius: 15,
backgroundStyle: .blur(effectStyle: .light),
jellyness: .jellier,
duration: .normal,
directionShow: .top,
directionDismiss: .top,
widthForViewController: .fullscreen,
heightForViewController: .custom(value:200) ,
horizontalAlignment: .center,
verticalAlignment: .top,
marginGuards: UIEdgeInsets(top: 0, left: 10, bottom: 0, right: 10))
self.jellyAnimator = JellyAnimator(presentation:customPresentation)
self.jellyAnimator?.prepare(viewController: viewController)
self.present(viewController, animated: true, completion: nil)
Your Project at least needs a deployment target that is > iOS 9.0
Jelly is available through CocoaPods. To install it, simply add the following line to your Podfile:
pod "Jelly"
Sebastian Boldt, [email protected]
Jelly is available under the MIT license. See the LICENSE file for more info.