Post not yet marked as solved
The code for @State doesn't seem to work.
struct DonutListView: View {
var donutList: DonutList
@State private var donutToAdd: Donut?
var body: some View {
List(donutList.donuts) { DonutView(donut: $0) }
Button("Add Donut") { donutToAdd = Donut() }
.sheet(item: $donutToAdd) { // <-- would need a "donut in"
TextField("Name", text: $donutToAdd.name) // <-- donutToAdd is optional and I'm not sure how it would be unwrapped
Button("Save") {
donutList.donuts.append(donutToAdd)
donutToAdd = nil
}
Button("Cancel") { donutToAdd = nil }
}
}
}
Does anyone have a fix for this?
Thanks,
Dan!
Post not yet marked as solved
I'm trying to create and advertise a Bonjour service via Network.framework.
In Xcode, target, Info tab, I've added the entry to plist:
And then written the following code:
guard let listener = try? NWListener(service: .init(name: "My Printer Service", type: "_printer._tcp"),using: .tcp) else {
return nil
}
self.listener = listener
listener.stateUpdateHandler = { newState in
switch newState {
case.ready:
print("starting")
case .failed(let error):
print("error: \(error)")
default:
print(newState)
}
}
listener.start(queue: .main)
However, the status is failed with error message:
POSIXErrorCode(rawValue: 22): Invalid argument
Post not yet marked as solved
Apple Music's "Automatic Downalods" checkbox does not stay checked when saving settings and does not work at all.
Note this was broken for me for a long, long, time (Catalina?).
I want to have a single selection in a List, holding content of a custom struct:
struct ChannelInfo: Hashable {
let title: String
let description: String
}
And the view:
struct JoinChannelView: View {
@Binding var rooms: [ChannelInfo]
@State var selectedRoom: String?
var body: some View {
VStack {
if $rooms.isEmpty {
Text("Loading...")
.transition(.slide)
} else {
List(selection: $selectedRoom) {
ForEach(rooms, id: \.title) { room in
Text(room.title)
.font(.title)
Text(room.description)
.font(.subheadline)
}
.padding(.bottom)
}
}
}
.frame(width: 150, height: 300)
}
}
My problem here is, that because inside the ForEach I render two Text views, both are selectable, but that's incorrect, I only want the title, the first Text to be selectable.
I want to display a simple message while waiting for a list to be populated. Something like Loading... and when the list starts being populated with even one item, remove the message, via a transition, and display the list.
My current attempt, that does not work, looks like:
struct JoinChannelView: View {
@Binding var rooms: [ChannelInfo]
@State var selectedRoom: String?
var body: some View {
VStack {
if $rooms.isEmpty {
Text("Loading...")
.transition(.slide)
} else {
List(selection: $selectedRoom) {
ForEach(rooms, id: \.title) { room in
Text(room.title)
.font(.title)
Text(room.description)
.font(.subheadline)
}
.padding(.bottom)
}
}
}
.frame(width: 150, height: 300)
}
}
Post not yet marked as solved
In XCode, if I hit a breakpoint, I can't view the value of some local variables:
I've read about disabling optimisations for debugging, but that's already done
Post not yet marked as solved
Currently NaviagitonView on macOS creates a side panel. And then navigationViewStyle does not support stack view for macOS.
Given this, is there currently a method to totally switch the content of a window from one view to another on macOS?
Post not yet marked as solved
For iOS NavigationLinks provide a good way to completely transition from one "screen" (view) to another.
In macOS however, NavigationLinks don't completely switch the whole contents of a screen to another.
What I want to achieve is to make a Button press trigger a transition from one screen to another.
dan101.