`ProgressView` does not animate `Progress.isIndeterminate` change
| Originator: | darren.mo | ||
| Number: | rdar://FB13429864 | Date Originated: | 2023-11-30 |
| Status: | Open | Resolved: | |
| Product: | SwiftUI | Product Version: | iOS 17.2 Seed 3 (21C5046c) |
| Classification: | Incorrect/Unexpected Behavior | Reproducible: | Always |
I have attached a sample project that contains a `ProgressView` that is backed by a `Progress` object. When `Progress.isIndeterminate` changes, the `ProgressView` updates its subviews and layout accordingly. However, the update is not animated—even if I wrap the change in a `withAnimation` block. In my opinion, the update should always be animated—even outside of a `withAnimation` block—since `Progress` changes could come from a lower layer of the app that might know nothing about SwiftUI (e.g. a package outside of our control).
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