This optimizes the AnimatedSwitcher so that it tags the right widget with its keyed subtree, and avoids rebuilding the transition unnecessarily.
This significantly improves the performance of Chips (which uses AnimatedSwitcher to swap out it's avatar and delete icon children).
Applies media padding (e.g. iOS safe area insets) around the list tile
children inside the InkWell.
Also adds safe area around gallery section titles for consistency with
surrounding list tiles.
Previously, ExpansionPanel would do weird things if interacted with
when it was already animating. This is fixed and there's now a test.
Also:
* Minor fixes to make the gallery work in RTL, not that there's
any way to see that without hard-coding the framework to RTL.
But at least I'll be less annoyed when doing that.
* Some trivial code and documentation cleanup.
This lets us preview widgets in the gallery using small, normal, large, and HUGE text.
Added selections to the main drawer for these options. Defaults to "normal", obviously.
* Rename BannerLocation enum values
* topLeft -> topStart
* topRight -> topEnd
* bottomLeft -> bottomStart
* bottomRight -> bottomEnd
These names will make it easier for us to adjust the location of the
banner in right-to-left mode.
See the discussion on flutter-dev.
* Add RTL support for Banner
Fixes#11905
Rename State.config to State.widget
Rename State.didUpdateConfig to State.didUpdateWidget
Renamed all State subclasses' local variables named config to something else
Move the back button and drawer opening logic into the app bar.
Move the tap-status-bar-to-scroll-to-top logic to using
ScrollControllers. Provide a PrimaryScrollController and a `primary`
flag on scroll views.
Make it possible to track when a route becomes or stops being poppable.
This requires all AnimationController objects to be given a
TickerProvider, a class that can create the Ticker.
It also provides some nice mixins for people who want to have their
State provide a TickerProvider. And a schedulerTickerProvider for those
cases where you just want to see your battery burn.
Also, we now enforce destruction order for elements.
