mirror of
https://github.com/simplex-chat/simplex-chat.git
synced 2026-04-27 02:05:48 +00:00
Evgeny Poberezkin
53 lines
1.5 KiB
Swift
53 lines
1.5 KiB
Swift
//
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// StickyScrollView.swift
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// SimpleX (iOS)
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//
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// Created by user on 20/09/2024.
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// Copyright © 2024 SimpleX Chat. All rights reserved.
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//
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import SwiftUI
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struct StickyScrollView<Content: View>: UIViewRepresentable {
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@ViewBuilder let content: () -> Content
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func makeUIView(context: Context) -> UIScrollView {
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let hc = context.coordinator.hostingController
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hc.view.backgroundColor = .clear
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let sv = UIScrollView()
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sv.showsHorizontalScrollIndicator = false
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sv.addSubview(hc.view)
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sv.delegate = context.coordinator
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return sv
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}
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func updateUIView(_ scrollView: UIScrollView, context: Context) {
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let hc = context.coordinator.hostingController
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hc.rootView = content()
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hc.view.frame.size = hc.view.intrinsicContentSize
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scrollView.contentSize = hc.view.intrinsicContentSize
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}
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func makeCoordinator() -> Coordinator {
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Coordinator(content: content())
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}
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class Coordinator: NSObject, UIScrollViewDelegate {
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let hostingController: UIHostingController<Content>
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init(content: Content) {
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self.hostingController = UIHostingController(rootView: content)
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}
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func scrollViewWillEndDragging(
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_ scrollView: UIScrollView,
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withVelocity velocity: CGPoint,
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targetContentOffset: UnsafeMutablePointer<CGPoint>
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) {
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if targetContentOffset.pointee.x < 32 {
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targetContentOffset.pointee.x = 0
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}
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}
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}
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}
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