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Error after adding previewContainer during code-along

I am getting this error in my preview: CompileDylibError: Failed to build ContentView.swift Compiling failed: main actor-isolated let 'previewContainer' can not be referenced from a non-isolated context I don't know enough about @MainActor to figure this out.
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by snackdog.
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Best M1 developer Mac?

I’m thinking of trading in an Intel MacBook Air for an M1 iMac. Another possibility is an M1 MacBook Air or 13” Pro with a second screen. I know portability would be a big difference but any other thoughts? I would love to hear your ideas.
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by snackdog.
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Recommendations for an external USB-C monitor?

We are buying some extra monitors for developers and writers at work. It would be great to find a monitor that: you can get power and video with one cable is retina resolution is 24-30" I am looking at monitors like: Dell UltraSharp 27 USB-C Hub Monitor - U2721DE LG 27UD88-W The LG Ultra 5K would also fit the bill and the camera is nice but probably beyond our budget. Suggestions welcome!
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by snackdog.
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Post marked as Apple Recommended
65 Replies
8.3k Views

Xcode 12 Documentation window closes Xcode

When I try to open the Xcode Documentation inside Xcode 12 (downloaded from the app store), the whole app closes. Is anyone else seeing this
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by snackdog.
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1 Replies
671 Views

widgetURL causes my widget to be white instead of filled in with content.

var body: some View {     switch family {     case .systemSmall:       ZStack {         AvatarView(entry.character)           .foregroundColor(.white)       }       .background(Color.gameBackground)       .widgetURL(entry.character.url) With that last modifier, I get a white widget in the preview instead of the actual content. Is anyone else seeing this?
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by snackdog.
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4 Replies
2.6k Views

Cordova apps and the new HTML guidelines

Apple posted this the other day:https://developer.apple.com/news/?id=01212020aDo you think this means Cordova apps with HTML content wrapped inside the app would be a problem?
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by snackdog.
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519 Views

How do I provide record audio controls on the lock screen?

I am working on a sound recording app and I noticed that Voice Memos is abale to present an interface on the lock screen whwen the phone is locked. Is this a standard capability or something available only to Voice Memos because this is an Apple developed app? I'm just trying to figure out if there is anything that I need to do to support this feature.I was looking at the article "Controlling Background Audio" but this seems to be about supporting playback on the Now Playing screen, rather than a recording interface.Thanks!
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by snackdog.
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