I am unable to use the hardware keyboard to enter text in text fields when using Xcode 12 live previews.
Same issue with all preview devices. Running on macOS 10.15.5.
Is there an option I am missing or a workaround for this?
import SwiftUI
struct ContentView: View {
@State private var text = ""
var body: some View {
Form {
TextField("Write something", text: $text)
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
Post not yet marked as solved
I first discovered this behavior while using the MultipeerConnectivity framework by building a progress tree for sending multiple files via MCSession.sendResource (which by the way is much stranger than the result of the code below: fractionCompleted jumps all over the place, e.g. from 0.5 to 1.4 to 0.7 to 2.8)I know that the property fractionCompleted is not supposed to be used for checking completion, however it is meant to be used for the UI, hence anything above 1.0 is not acceptable.The following code causes Progress.fractionCompleted property to exceed 1.let childUnitCounts: [(initialCompletedUnitCount: Int64, totalUnitCount: Int64)] = [
(9855, 34375),
(10950, 19110),
(9855, 37511),
(9855, 18799),
(9855, 42705),
(10950, 19021), // When commenting out this line or setting the initial unit count to 0, things work as expected.
]
let parent = Progress()
parent.totalUnitCount = Int64(childUnitCounts.count)
let children: [Progress] = childUnitCounts.map { unitCount in
let child = Progress(totalUnitCount: unitCount.totalUnitCount)
child.completedUnitCount = unitCount.initialCompletedUnitCount
parent.addChild(child, withPendingUnitCount: 1)
return child
}
print(parent)
for (i, state) in childUnitCounts.enumerated() {
children[i].completedUnitCount = state.totalUnitCount
print(parent)
}And this is the output:<NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 0.4088 / Completed: 0 of 6 <NSProgress: 0x6000001708c0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2867 / Completed: 9855 of 34375 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170b40> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2308 / Completed: 9855 of 42705 <NSProgress: 0x600000170aa0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5242 / Completed: 9855 of 18799 <NSProgress: 0x600000170a00> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2627 / Completed: 9855 of 37511 <NSProgress: 0x600000170960> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5730 / Completed: 10950 of 19110 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 0.5277 / Completed: 1 of 6 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170b40> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2308 / Completed: 9855 of 42705 <NSProgress: 0x600000170aa0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5242 / Completed: 9855 of 18799 <NSProgress: 0x600000170a00> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2627 / Completed: 9855 of 37511 <NSProgress: 0x600000170960> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5730 / Completed: 10950 of 19110 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 0.5989 / Completed: 2 of 6 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170b40> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2308 / Completed: 9855 of 42705 <NSProgress: 0x600000170aa0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5242 / Completed: 9855 of 18799 <NSProgress: 0x600000170a00> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2627 / Completed: 9855 of 37511 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 0.8094 / Completed: 3 of 6 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170b40> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2308 / Completed: 9855 of 42705 <NSProgress: 0x600000170aa0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5242 / Completed: 9855 of 18799 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 0.8886 / Completed: 4 of 6 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170b40> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.2308 / Completed: 9855 of 42705 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 1.0169 / Completed: 5 of 6 <NSProgress: 0x600000170be0> : Parent: 0x600000170820 (portion: 1) / Fraction completed: 0.5757 / Completed: 10950 of 19021 <NSProgress: 0x600000170820> : Parent: 0x0 (portion: 0) / Fraction completed: 1.2795 / Completed: 6 of 6 Please help me understand what I am missing or doing wrong.
ripebanana.