Created
February 2, 2023 12:39
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Protocol based mechanism for easily and uniformly displaying a custom messaging UI element
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| protocol MessageViewPresentable: AnyObject { | |
| var messageView: MessageView? { get set } | |
| var hostView: UIView { get } | |
| func showMessageView(using context: MessageView.Context, action: Action?) | |
| func hideMessageView(animated: Bool) | |
| } | |
| extension MessageViewPresentable where Self: UIViewController { | |
| var hostView: UIView { | |
| view | |
| } | |
| func showMessageView(using context: MessageView.Context, action: Action?) { | |
| let messageView = MessageView(context: context, action: action) | |
| let oldMessageView = self.messageView | |
| self.messageView = messageView | |
| Animation.transition(with: view) { | |
| oldMessageView?.removeFromSuperview() | |
| self.hostView.addSubview(messageView) | |
| messageView.snp.makeConstraints { | |
| $0.edges.equalToSuperview() | |
| } | |
| } | |
| } | |
| func hideMessageView(animated: Bool) { | |
| guard let messageView = messageView, messageView.isDescendant(of: view) else { return } | |
| Animation.transition(with: view, animated: animated) { | |
| messageView.removeFromSuperview() | |
| self.messageView = nil | |
| } | |
| } | |
| } |
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