LiquidTransition alternatives and similar libraries
Based on the "Transition" category.
Alternatively, view LiquidTransition alternatives based on common mentions on social networks and blogs.
-
TBIconTransitionKit
TBIconTransitionKit is an easy to use icon transition kit that allows to smoothly change from one shape to another. -
AppstoreTransition
Appstore card animation transition. UICollectionView and UITableView card expand animated transition for iOS -
SemiModalViewController
UIViewController extension to present view / view controller as bottom-half modal.
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README
LiquidTransition
LiquidTransition provide new API for transition creation.
Features:
- Easy and convinient API (less boilerplate code)
- Animate backward
- Interrupt transition at any time to continue interactive
- Helper class for restore views state
- Animation of custom properties (or
CALayer
properties) - Complex transition without 'lag'
[Web browser](/../screenshots/gif/web_browser.gif?raw=true "Web browser") [Photo browser](/../screenshots/gif/photo_browser.gif?raw=true "Photo browser") [Complex animation](/../screenshots/gif/complex_animation.gif?raw=true "Complex animation")
Instalation
CocoaPods
Add the following entry to your Podfile:
pod 'LiquidTransition'
Then run pod install
.
Don't forget to import LiquidTransition
in every file you'd like to use LiquidTransition.
Usage
Like this you can create simple transition
import LiquidTransition
class FadeTransition: Animator<FromViewController, ToViewController> {
init() {
super.init(from: FromViewController.self, to: ToViewController.self, direction: .both)
duration = 0.3
timing = Timing.default
// do not perform here complex operations, cause it calls on app initialization
}
override func animation(src: FromViewController, dst: ToViewController, container: UIView, duration: Double) {
dst.view.alpha = 0
// perform linear animation and manage timing function with `self.timing`
UIView.animate(withDuration: duration, delay: 0, options: [.curveLinear], animations: {
dst.view.alpha = 1
}) { _ in
dst.view.alpha = 1 // if anim somehow canceled
}
}
}
On app starts you can setup transitions
Liquid.shared.becomeDelegate() // Liquid automaticly becomes delegates for all animated transitions
Liquid.shared.addTransitions([FadeTransition()])
That's it! Easy enought?! :)
Customization
import LiquidTransition
class ExampleTransition: Animator<SampleController, CardsNavigationController> {
var imgView: UIImageView!
init() {
super.init(from: SampleController.self, to: CardsNavigationController.self, direction: .both)
duration = 0.4
timing = Timing.init(closure: { $0 * $0 })
addCustomAnimation {[weak self] (progress) in
self?.imgView?.layer.cornerRadius = 20 * (1-progress)
}
}
override func animation(src: SampleController, dst: CardsNavigationController, container: UIView, duration: Double) {
imgView = dst.imgView
// this class restore all views state before transition
// when you have lot of property changes, it can be might helpfull
let restore = TransitionRestorer()
restore.addRestore(imgView, src.fadeView)
// cause on end transition we dont want restore superview of `src.view` and `dst.view`
restore.addRestore(dst.view, ignoreFields: [.superview])
dst.view.alpha = 0
UIView.animate(withDuration: duration, delay: 0, options: [.curveLinear], animations: {
dst.view.alpha = 1
src.fadeView.alpha = 0
self.imgView.frame = CGRect(/*new frame*/)
}) { _ in
restore.restore()
}
}
}
Sometimes we need that one transition work for multiple controllers. In this case you can define UIViewController
as template classes and call init method with multiple classes defined:
class FadeTransition: Animator<UIViewController, UIViewController> {
init() {
super.init(from: [VC1.self, VC2.self, VC3.self], to: [VC4.self, VC5.self], direction: .both)
duration = 0.3
}
override func animation(src: UIViewController, dst: UIViewController, container: UIView, duration: Double) {
// animation
}
Or use protocol, to have access to common views. If it's not your case, you can ovverride canAnimate
function
open func canAnimate(src: UIViewController, dst: UIViewController, direction animDirection: Direction) -> Bool
and define your conditions
TODO
- [x] Backward animation
- [x] Custom timing function
- [x] Allow custom animation
- [x] Restore view state helper class
- [x] Smooth interactive animation for complex prepare animation
- [x] Support Cocoapods
- [ ] Support Carthage
- [x] Add custom save keys for
TransitionRestorer
- [ ] Add some default animations
Notes
LiquidTransition controls animation percent completion. So if you define animation in one direction, it can run animation backward. In backward animation run from 1 to 0. So if you works with NSNavigationController
with navigationBar
, you can see that navigationBar
animates backward (see example with photos). In this case better to define animation in both directions.
LiquidTransition 'inspired' by Hero. We have complex UI with custom animation. Several weaks we try to implement performance animation in Hero
. When nothing works with Hero
, we check manual implementation of transition. It works much faster. Cause Hero
do a lot of snapshots, performs transition becomes laggy. In real project Hero
showed not enough performance and require a lot of code to say what you really want. So in real app manual transition looks more suitable. Hero
was removed from project and we move to transitions with manual control. Some pieces of new library start appear in our project. Now some ideas and code was moved and refactored for common usage in one library.
If you look for something similar, take a look on Transition and EasyTransitions. I found this projects after finish LiquidTransition
and they have good ideas behind. They less convenient, but still good lib.
Credits
Alexandr Graschenkov: [email protected]
iOS
and Computer Vision
developer
*Note that all licence references and agreements mentioned in the LiquidTransition README section above
are relevant to that project's source code only.