mirror of
https://github.com/flutter/flutter.git
synced 2026-02-05 11:19:18 +08:00
05add65f63
This is a reland of #166645 fixes #166642 **The newly added tests verify the following behaviors:** 1. DropdownButtonFormField can be focused if it was unfocused and we replaced FocusNode. 2. DropdownButtonFormField can be unfocused if it was focused and we replaced FocusNode. ## 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.