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e3e4a1985a
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28 lines
1.3 KiB
Swift
28 lines
1.3 KiB
Swift
final class AlertPresentationController: DimmedModalPresentationController {
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override var frameOfPresentedViewInContainerView: CGRect {
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let f = super.frameOfPresentedViewInContainerView
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let s = presentedViewController.view.systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
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let r = CGRect(x: 0, y: 0, width: s.width, height: s.height)
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return r.offsetBy(dx: (f.width - r.width) / 2, dy: (f.height - r.height) / 2)
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}
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override func presentationTransitionWillBegin() {
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super.presentationTransitionWillBegin()
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presentedViewController.view.layer.setCornerRadius(.modalSheet)
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presentedViewController.view.clipsToBounds = true
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guard let containerView = containerView, let presentedView = presentedView else { return }
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containerView.addSubview(presentedView)
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presentedView.center = containerView.center
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presentedView.frame = frameOfPresentedViewInContainerView
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presentedView.autoresizingMask = [.flexibleLeftMargin, .flexibleTopMargin, .flexibleRightMargin, .flexibleBottomMargin]
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}
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override func dismissalTransitionDidEnd(_ completed: Bool) {
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super.presentationTransitionDidEnd(completed)
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guard let presentedView = presentedView else { return }
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if completed {
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presentedView.removeFromSuperview()
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}
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}
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}
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