mirror of
https://github.com/MessageKit/MessageKit.git
synced 2026-02-06 19:03:19 +00:00
martinpucik
4ab430c7b1
Cleanup of commented and not used code Moved some internal properties to state object Removed iOS 13 available checks
89 lines
3.3 KiB
Swift
89 lines
3.3 KiB
Swift
/*
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MIT License
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Copyright (c) 2017-2022 MessageKit
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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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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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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 THE
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SOFTWARE.
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*/
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import Foundation
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import UIKit
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extension MessagesViewController {
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/// Display time of message by swiping the cell
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func addPanGesture() {
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panGesture = UIPanGestureRecognizer(target: self, action: #selector(handlePanGesture(_:)))
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guard let panGesture = panGesture else {
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return
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}
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panGesture.delegate = self
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messagesCollectionView.addGestureRecognizer(panGesture)
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messagesCollectionView.clipsToBounds = false
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}
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func removePanGesture() {
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guard let panGesture = panGesture else {
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return
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}
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panGesture.delegate = nil
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self.panGesture = nil
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messagesCollectionView.removeGestureRecognizer(panGesture)
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messagesCollectionView.clipsToBounds = true
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}
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@objc
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private func handlePanGesture(_ gesture: UIPanGestureRecognizer) {
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guard let parentView = gesture.view else {
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return
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}
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switch gesture.state {
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case .began, .changed:
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messagesCollectionView.showsVerticalScrollIndicator = false
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let translation = gesture.translation(in: view)
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let minX = -(view.frame.size.width * 0.35)
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let maxX: CGFloat = 0
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var offsetValue = translation.x
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offsetValue = max(offsetValue, minX)
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offsetValue = min(offsetValue, maxX)
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parentView.frame.origin.x = offsetValue
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case .ended:
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messagesCollectionView.showsVerticalScrollIndicator = true
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UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 0.7, initialSpringVelocity: 0.8, options: .curveEaseOut, animations: {
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parentView.frame.origin.x = 0
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}, completion: nil)
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default:
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break
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}
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}
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}
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// MARK: - UIGestureRecognizerDelegate
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extension MessagesViewController: UIGestureRecognizerDelegate {
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/// Check Pan Gesture Direction:
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open func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
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guard let panGesture = gestureRecognizer as? UIPanGestureRecognizer else {
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return false
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}
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let velocity = panGesture.velocity(in: messagesCollectionView)
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return abs(velocity.x) > abs(velocity.y)
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}
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}
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