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LouiseHsu 22a2203888

Fix Voiceover traversal for OutlinedButton.icon (#175810 )

Fixes #172489 

When an OutlinedButton.icon is initially built with a null icon and
later updated to display an icon, the underlying widget implementation
changes. The button switches from a standard OutlinedButton to a private
_OutlinedButtonWithIcon widget.

This switch causes the button's entire semantic node to be destroyed and
a new one created in its place. For screen readers like VoiceOver, this
behavior is disruptive. If an accessibility service is focused on the
button when its icon appears, that focus is lost because the original
semantic node is discarded, leading to strange behaviour as it makes an
best effort to focus on an existing node.

This PR resolves the issue by ensuring the same widget is used
regardless of whether the icon is present. The logic for
_OutlinedButtonWithIcon has been merged into the base class
OutlinedButton, ensuring that no matter if you call OutlinedButton.icon
or OutlinedButton you recieve a widget of type OutlinedButton.

Demo:


https://github.com/user-attachments/assets/e012bac9-823e-46f1-8eba-ec70e6b260a1

2025-10-03 18:02:35 +00:00

android

Roll pub packages and update lockfiles (#175446 )

2025-09-16 20:06:25 +00:00

ios

…

lib

Migrate to list and builder Sliver convenience constructors (#173011 )

2025-08-04 22:32:22 +00:00

linux

…

macos