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37 lines
1.5 KiB
Swift
37 lines
1.5 KiB
Swift
final class BottomMenuPresentationController: UIPresentationController {
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override func containerViewWillLayoutSubviews() {
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super.containerViewWillLayoutSubviews()
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(presentedViewController as? BottomMenuViewController)?.chromeView.frame = containerView!.bounds
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presentedView?.frame = frameOfPresentedViewInContainerView
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}
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override func presentationTransitionWillBegin() {
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super.presentationTransitionWillBegin()
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guard let presentedViewController = presentedViewController as? BottomMenuViewController,
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let coordinator = presentedViewController.transitionCoordinator,
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let containerView = containerView else { return }
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containerView.addSubview(presentedView!)
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presentedViewController.containerView = containerView
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presentedViewController.chromeView.frame = containerView.bounds
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presentedViewController.chromeView.alpha = 0
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coordinator.animate(alongsideTransition: { _ in
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presentedViewController.chromeView.alpha = 1
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}, completion: nil)
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}
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override func dismissalTransitionWillBegin() {
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super.dismissalTransitionWillBegin()
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guard let presentedViewController = presentedViewController as? BottomMenuViewController,
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let coordinator = presentedViewController.transitionCoordinator,
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let presentedView = presentedView else { return }
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coordinator.animate(alongsideTransition: { _ in
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presentedViewController.chromeView.alpha = 0
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}, completion: { _ in
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presentedView.removeFromSuperview()
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})
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}
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}
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