63 lines
2.5 KiB
Swift
63 lines
2.5 KiB
Swift
//
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// Copyright (c) 2017 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import UIKit
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public extension UIWindow {
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/// default scale
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static let snapshotScale: CGFloat = 1.5
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/// default root controller animation duration
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static let snapshotAnimationDuration = 0.5
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/// Method changes root controller in window.
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///
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/// - Parameter controller: New root controller.
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public func changeRootController(controller: UIViewController) {
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animateRootViewControllerChanging(controller: controller)
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rootViewController?.dismiss(animated: false, completion: nil)
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rootViewController = controller
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makeKeyAndVisible()
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}
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/**
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method animates changing root controller
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- parameter controller: new root controller
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*/
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private func animateRootViewControllerChanging(controller: UIViewController) {
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if let snapshot = snapshotView(afterScreenUpdates: true) {
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controller.view.addSubview(snapshot)
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UIView.animate(withDuration: UIWindow.snapshotAnimationDuration, animations: {
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snapshot.layer.opacity = 0.0
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snapshot.layer.transform = CATransform3DMakeScale(UIWindow.snapshotScale,
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UIWindow.snapshotScale,
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UIWindow.snapshotScale)
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}, completion: { _ in
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snapshot.removeFromSuperview()
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})
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}
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}
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}
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