Mastering WidgetKit in SwiftUI 4, iOS 16 with Dynamic Island - Exchange Rate Timeline Provider

This video tutorial guides viewers through creating a static timeline provider widget in Swift. It covers the importance of setting the reload policy to 'never' for static lists, using context information to query widget family data, and coding the timeline provider. The video concludes with a brief introduction to the next topic, widget configuration.

What is the significance of the placeholder in the context of the widget?

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How does the completion function relate to the timeline in the widget?

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