gaaclarke 3d8fa621c1
[Reland3] Implements UISceneDelegate dynamically w/ FlutterLaunchEngine (#169276) (#169365)
## **BREAKING CHANGE**

Adopting Apple's UISceneDelegate protocol shifts the initialization
order of apps. For the common cases we've made sure they will work
without change. The one case that will require a change is any app that
in `-[UIApplicateDelegate didFinishLaunchingWithOptions:]` assumes that
`UIApplicationDelegate.window.rootViewController` is a
`FlutterViewController` instance. Users should follow the [migration
guide](https://docs.google.com/document/d/16WsqYbANmhupw-gxGPQPZ9B3yz1YBIviS-N1UyIQNSE/edit?tab=t.0#heading=h.txry2otwqko3)
to update that usage.

## Changes since revert
It's been rebased onto the FlutterPluginRegistrant PR which was used for
migration. The dynamic selection of the UISceneDelegate has been
removed, instead there is a flutter tool migration to the Info.plist.

## Description
fixes: https://github.com/flutter/flutter/issues/167267

design doc:


https://docs.google.com/document/d/1ZfcQOs-UKRa9jsFG84-MTFeibZTLKCvPQLxF2eskx44/edit?tab=t.0

relands https://github.com/flutter/flutter/pull/168396 
relands https://github.com/flutter/flutter/pull/168914
relands https://github.com/flutter/flutter/pull/169276

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.
2025-05-30 20:57:40 +00:00
..

This directory contains tools and resources that the Flutter team uses during the development of the framework. The tools in this directory should not be necessary for developing Flutter applications, though of course, they may be interesting if you are curious.

The tests in this directory are run in the framework_tests_misc-* shards.