107 lines
2.7 KiB
Swift
107 lines
2.7 KiB
Swift
//
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// AutoScrollView.swift
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// OnCue
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//
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// Created by Pradyun Setti on 23/06/2024.
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//
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import SwiftUI
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import SwiftData
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//struct AutoScrollView<Content: View>: View {
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// let content: Content
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// var scrollSpeed: Double = 15.0
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//
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// @State private var offset: Double = 0.0
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//
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// init(scrollSpeed: Double = 0, @ViewBuilder _ content: () -> Content) {
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// self.content = content()
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// self.scrollSpeed = scrollSpeed
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// }
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//
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// var body: some View {
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// ScrollView {
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// content
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// .offset(y: offset)
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// }
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// }
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//
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// func startScrolling() {
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//
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// }
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//
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// func stopScrolling() {
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//
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// }
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//
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// mutating func setScrollSpeed(_ speed: Double) {
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// self.scrollSpeed = speed
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// }
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//}
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struct AutoScrollView<Content: View>: View {
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@State private var scrollOffset: CGFloat = 0
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@State private var timer: Timer? = nil
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let content: Content
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var scrollSpeed: CGFloat = 0.5 // Adjust this value to control the scroll speed
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init(scrollSpeed: Double = 0.7, @ViewBuilder _ content: () -> Content) {
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self.content = content()
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self.scrollSpeed = scrollSpeed
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}
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var body: some View {
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ScrollView {
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VStack {
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content
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.padding()
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.background(GeometryReader { geo in
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Color.clear.onAppear {
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// Calculate the height of the content
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let contentHeight = geo.size.height
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startTimer(contentHeight: contentHeight)
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}
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})
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.offset(y: -scrollOffset)
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}
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}
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.onDisappear {
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stopTimer()
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}
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}
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private func startTimer(contentHeight: CGFloat) {
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timer?.invalidate() // Invalidate any existing timer
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timer = Timer.scheduledTimer(withTimeInterval: 0.01, repeats: true) { _ in
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// Update the scroll offset
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withAnimation {
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scrollOffset += scrollSpeed
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}
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// Reset scroll offset when it reaches the end
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if scrollOffset >= contentHeight {
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scrollOffset = 0
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}
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}
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}
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private func stopTimer() {
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timer?.invalidate()
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timer = nil
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}
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}
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#Preview {
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let config = ModelConfiguration(isStoredInMemoryOnly: true)
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let container = try! ModelContainer(for: OCProject.self, configurations: config)
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container.mainContext.insert(PreviewData.project)
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return AutoScrollView {
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Text(PreviewData.project.script)
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.font(.system(size: 45))
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.padding(.horizontal)
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}
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}
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