
Change the following in the `flutter create` templates. I didn't make any auto-migrations for existing apps because none seem that critical: 1. Turn on `ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS` in iOS and macOS. 1. Turn on `BuildIndependentTargetsInParallel` in macOS template. https://github.com/flutter/flutter/pull/125827/files#r1181817619 1. Turn on `DEAD_CODE_STRIPPING` in macOS template. 1. Set `ENABLE_USER_SCRIPT_SANDBOXING=NO` in iOS and macOS template. `flutter` scripts don't work with this on. This might require a migration in the future to explicitly turn this one off. However at least for now if the setting isn't present it defaults to `NO`. Add migration for `LastUpgradeVersion` so users won't see these validation issues in Xcode. Run migrator on all the example apps. A few aren't Flutter apps so I edited them in Xcode. Fixes https://github.com/flutter/flutter/issues/140253 See also https://github.com/flutter/flutter/issues/125817 and https://github.com/flutter/flutter/pull/90304.
platform_views_layout
Scrolling benchmark
To run the scrolling benchmark on a device:
flutter drive --profile test_driver/scroll_perf.dart
Results should be in the file build/platform_views_scroll_perf.timeline_summary.json
.
More detailed logs should be in build/platform_views_scroll_perf.timeline.json
.
Startup benchmark
To measure startup time on a device:
flutter run --profile --trace-startup
The results should be in the logs.
Additional results should be in the file build/start_up_info.json
.