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Merge pull request #151 from feature/UIViewPropertyAnimator+Rx
Add UIViewPropertyAnimator reactive extension
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116 changes: 116 additions & 0 deletions
116
...tExtPlayground.playground/Pages/UIViewPropertyAnimator+Rx.xcplaygroundpage/Contents.swift
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| @@ -0,0 +1,116 @@ | ||
| /*: | ||
| > # IMPORTANT: To use `RxSwiftExtPlayground.playground`, please: | ||
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| 1. Make sure you have [Carthage](https://github.com/Carthage/Carthage) installed | ||
| 1. Fetch Carthage dependencies from shell: `carthage bootstrap --platform ios` | ||
| 1. Build scheme `RxSwiftExtPlayground` scheme for a simulator target | ||
| 1. Choose `View > Show Debug Area` | ||
| */ | ||
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| //: [Previous](@previous) | ||
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| import RxSwift | ||
| import RxCocoa | ||
| import RxSwiftExt | ||
| import PlaygroundSupport | ||
| import UIKit | ||
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| /*: | ||
| ## animate | ||
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| The `animate` operator provides a Completable that triggers the animation upon subscription and completes when the animation ends. | ||
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| Please open the Assistant Editor (⌘⌥⏎) to see the Interactive Live View example. | ||
| */ | ||
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| class AnimateViewController: UIViewController { | ||
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| let disposeBag = DisposeBag() | ||
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| lazy var box1: UIView = { | ||
| let view = UIView(frame: CGRect(x: 100, y: 100, width: 100, height: 100)) | ||
| view.backgroundColor = .red | ||
| return view | ||
| }() | ||
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| lazy var box2: UIView = { | ||
| let view = UIView(frame: CGRect(x: 100, y: 220, width: 100, height: 100)) | ||
| view.backgroundColor = .green | ||
| return view | ||
| }() | ||
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| lazy var box3: UIView = { | ||
| let view = UIView(frame: CGRect(x: 100, y: 340, width: 100, height: 100)) | ||
| view.backgroundColor = .blue | ||
| return view | ||
| }() | ||
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| lazy var button: UIButton = { | ||
| let button = UIButton(frame: CGRect(x: 100, y: 500, width: 200, height: 50)) | ||
| button.setTitle("Play animation", for: .normal) | ||
| button.setTitleColor(.blue, for: .normal) | ||
| button.backgroundColor = .white | ||
| button.layer.borderColor = UIColor.black.cgColor | ||
| button.layer.borderWidth = 2 | ||
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| return button | ||
| }() | ||
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| var animator1: UIViewPropertyAnimator! | ||
| var animator2: UIViewPropertyAnimator! | ||
| var animator3: UIViewPropertyAnimator! | ||
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| private func makeAnimators() { | ||
| animator1 = UIViewPropertyAnimator(duration: 0.3, curve: .easeInOut) { [unowned self] in | ||
| self.box1.transform = self.box1.transform != .identity ? .identity | ||
| : self.box1.transform.translatedBy(x: 0, y: -100) | ||
| } | ||
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| animator2 = UIViewPropertyAnimator(duration: 0.25, curve: .easeInOut) { [unowned self] in | ||
| self.box2.transform = self.box2.transform != .identity ? .identity | ||
| : self.box2.transform | ||
| .translatedBy(x: 0, y: -100) | ||
| .scaledBy(x: 1.2, y: 1.2) | ||
| } | ||
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| animator3 = UIViewPropertyAnimator(duration: 0.15, curve: .easeInOut) { [unowned self] in | ||
| self.box3.transform = self.box3.transform != .identity ? .identity | ||
| : self.box3.transform | ||
| .translatedBy(x: 0, y: -100) | ||
| .rotated(by: .pi) | ||
| } | ||
| } | ||
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| override func viewDidLoad() { | ||
| super.viewDidLoad() | ||
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| // construct the main view | ||
| let views = [box1, box2, box3, button] | ||
| view.backgroundColor = .white | ||
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| views.forEach { | ||
| view.addSubview($0) | ||
| } | ||
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| makeAnimators() | ||
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| // Trigger chained animations after a button tap | ||
| button.rx.tap | ||
| .flatMap { [unowned self] in | ||
| self.animator1.rx.animate() | ||
| .andThen(self.animator2.rx.animate(afterDelay: 0.15)) | ||
| .andThen(self.animator3.rx.animate(afterDelay: 0.1)) | ||
| .do(onCompleted: { | ||
| self.makeAnimators() | ||
| }) | ||
| .debug("animation sequence") | ||
| } | ||
| .subscribe() | ||
| .disposed(by: disposeBag) | ||
| } | ||
| } | ||
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| // Present the view controller in the Live View window | ||
| PlaygroundPage.current.liveView = AnimateViewController() | ||
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| //: [Next](@next) |
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...layground.playground/Pages/UIViewPropertyAnimator+Rx.xcplaygroundpage/timeline.xctimeline
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <Timeline | ||
| version = "3.0"> | ||
| <TimelineItems> | ||
| </TimelineItems> | ||
| </Timeline> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // | ||
| // UIViewPropertyAnimator+Rx.swift | ||
| // RxSwiftExt | ||
| // | ||
| // Created by Wittemberg, Thibault on 29/03/18. | ||
| // Copyright © 2017 RxSwift Community. All rights reserved. | ||
| // | ||
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| import Foundation | ||
| import UIKit | ||
| import RxSwift | ||
| import RxCocoa | ||
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| @available(iOS 10.0, *) | ||
| public extension Reactive where Base: UIViewPropertyAnimator { | ||
| /// Provides a Completable that triggers the UIViewPropertyAnimator upon subscription | ||
| /// and completes once the animation ends. | ||
| /// | ||
| /// - Parameter afterDelay: the delay to apply to the animation start | ||
| /// | ||
| /// - Returns: Completable | ||
| func animate(afterDelay delay: TimeInterval = 0) -> Completable { | ||
| return Completable.create { [base] completable in | ||
| base.addCompletion { position in | ||
| guard position == .end else { return } | ||
| completable(.completed) | ||
| } | ||
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| if delay != 0 { | ||
| base.startAnimation(afterDelay: delay) | ||
| } else { | ||
| base.startAnimation() | ||
| } | ||
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| return Disposables.create { | ||
| base.stopAnimation(true) | ||
| } | ||
| } | ||
| } | ||
| } |
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