[ Widget Preview ] Add support for building and launching the widget preview scaffold #162326
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… code `flutter widget-preview start` will now look for functions annotated with `@Preview()` within the developer's project. These functions will be used to generate `.dart_tool/widget_preview_scaffold/lib/generated_preview.dart`, which inserts the returned value from each preview function into a `List<WidgetPreview>` returned from a `previews()` method that is invoked by the widget preview scaffold root.
…preview scaffold This also wires up the preview detector to trigger hot reloads when new previews are detected or previews are removed. Note: while this change results in lib/generated_preview.dart being generated and updated, it's not currently referenced by lib/main.dart and the preview environment will render a black screen.
andrewkolos
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Feb 4, 2025
andrewkolos
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Feb 4, 2025
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This also wires up the preview detector to trigger hot reloads when new
previews are detected or previews are removed.
Note: while this change results in lib/generated_preview.dart being
generated and updated, it's not currently referenced by lib/main.dart
and the preview environment will render a black screen.