
Reland https://github.com/flutter/flutter/pull/140478 with `ios_content_validation_test` test fix. ``` [ios_content_validation_test] Process terminated with exit code 0. Task result: { "success": true, "data": null, "detailFiles": [], "benchmarkScoreKeys": [], "reason": "success" } ``` __________ 1. Change templates to `IPHONEOS_DEPLOYMENT_TARGET`, `MinimumOSVersion`, and Podfile `platform :ios` to 12.0. 2. Add migrator for Podfile part to migrate `platform :ios, '11.0'` -> `platform :ios, '12.0'` 3. Compile with `-miphoneos-version-min=12.0` 4. Run the migrator on all example apps and integration tests. See also https://github.com/flutter/flutter/pull/62902 and https://github.com/flutter/flutter/pull/85174 and https://github.com/flutter/flutter/pull/101963 Fixes https://github.com/flutter/flutter/issues/136060
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
.