Text timer inside ScrollView?

Question

Sash OP

Created Oct ’20

Replies 1

Boosts 0

Participants 2

Code:

Code Block struct ContentView: View {
    var body: some View {
        ScrollView {
            Text(Date(), style: .timer)
        }
    }
}

Produces crash:

Code Block Thread 1: EXC_BREAKPOINT

in:

Code Block DisplayList.ViewUpdater.ViewCache.setNextUpdate(_:item:state:tag:) ()

Any recommendations/workarounds?

Boost

Answer 1

Claude31 OP

Oct ’20

I have tried many combinations, inserting in a Stack, …

.timer style always crash in a ScrollView, where .time style works OK.

Either it is a bug or it is a forbidden pattern not documented.

I found a solution here to make it work:
https ://www.hackingwithswift .com/quick-start/swiftui/how-to-use-a-timer-with-swiftui

Code Block struct ContentView: View {
    @State var currentDate = Date()
    
    let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()
    var body: some View {
        ScrollView([.horizontal, .vertical]) {
            Text("\(currentDate)")
                .onReceive(timer) { input in
                    self.currentDate = input
                }
        }
    }
}

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