Fix TabBarView and TabBar animations are not synchronized #122021
Merged
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Description
This PR makes it possible to interrupt an ongoing
TabBarView
animation.Before this PR, when the
TabBarView
animation is running (after the user selected one tab in the tab bar), it is not possible to interrupt this animation. So if the user selects another tab, theTabBarView
will first finish the ongoing animation and then starts the new one). Because theTabBar
animation can be interrupted, this leads toTabBarView
andTabBar
animations being unsynchronized.Before:
Before.mp4
After:
After.mp4
Related Issue
Fixes #113020
Implementation choices
This PR combines several changes.
_children
andoriginalChildren
). Recreating_childrenWithKey
by callingensureUniqueKeysForList
seems to be cheap and less error-prone.Tests
Adds 1 test.