iOS 17下SwiftUI ScrollView内容尺寸变化时跳动问题求助
iOS 17 SwiftUI ScrollView 疑似Bug反馈
我在iOS 17中发现了SwiftUI ScrollView的一个新问题,看起来像是个Bug,但无法100%确认。已经将该问题提交给苹果官方,收到回复后会在此更新。如果有其他开发者遇到过相同问题并了解修复/规避方案,欢迎分享🙏
iOS 17下观察到的问题

相同代码在iOS 16及更早版本无问题

最小复现代码
import SwiftUI @main struct ScrollViewBugApp: App { var body: some Scene { WindowGroup { ContentView() } } } struct ContentView: View { @StateObject var model = ContentViewModel() var body: some View { ScrollView { TestView(counter: model.counter) } } } @MainActor class ContentViewModel: ObservableObject { @Published private(set) var counter = 0 init() { let timer = Timer(timeInterval: 0.3, repeats: true) { [weak self] _ in guard let self = self else { return } Task { await self.incrementCounter() } } RunLoop.main.add(timer, forMode: .common) } private func incrementCounter() { counter += 1 } } struct TestView: View { var counter: Int var body: some View { VStack { Divider() Text("\(counter)") if counter % 2 == 0{ Text("Even Number") } } .padding() } }
内容的提问来源于stack exchange,提问作者meiwin
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