WatchKit Background Tasks in Swift UI App

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Created Jul ’20

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I'm working through and following this great tutorial on how to keep complications up to date using background refresh, however I'm struggling to find out how to implement the functionality in a pure SwiftUI app.

In order to handle background refresh tasks it is necessary to call this handler:

Code Block func handle(_ backgroundTasks: Set<WKRefreshBackgroundTask>)

Which is part of the WKExtensionDelegate protocol which isn't part of the new SwiftUI app structure.

Is there a way to implement handling of background tasks as part of the @Main App protocol, without needing the Extension Delegate?

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Answer 1

mecid OP

Aug ’20

Code Block swift@main
struct CardioBotApp: App {
	@WKExtensionDelegateAdaptor(ExtensionDelegate.self) var delegate
}

You can use adaptor property wrapper to provide WKExtensionDelegate

5