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32 lines
868 B
Swift
32 lines
868 B
Swift
final class RouteManagerTableView: UITableView {
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@IBOutlet private weak var tableViewHeight: NSLayoutConstraint!
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enum HeightUpdateStyle {
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case animated
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case deferred
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case off
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}
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var heightUpdateStyle = HeightUpdateStyle.deferred
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private var scheduledUpdate: DispatchWorkItem?
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override var contentSize: CGSize {
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didSet {
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guard contentSize != oldValue else { return }
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scheduledUpdate?.cancel()
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let update = { [weak self] in
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guard let s = self else { return }
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s.tableViewHeight.constant = s.contentSize.height
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}
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switch heightUpdateStyle {
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case .animated: superview?.animateConstraints(animations: update)
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case .deferred:
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scheduledUpdate = DispatchWorkItem(block: update)
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DispatchQueue.main.async(execute: scheduledUpdate!)
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case .off: break
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}
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}
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}
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}
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