* Add Robert Penner’s easing functions
These easing functions are the most popular functions in use on the web
and other platforms. Including them in Flutter will encourage users to
create more engaging and attractive animations.
* Adds start behavior option to the drag gesture recognizer and makes it the default option when a drag gesture recognizer is created. Also fixes all the tests to work correctly with the new default behavior.
* Ensure all errors thrown by image providers can be caught by developers.
Add an `onError` parameter to the ImageCache.putIfAbsent method.
In the event that an error is thrown when resolving an image, catch if
this parameter is provided. Use the onError parameter to ensure that all
errors thrown are forwarded to the ImageStream error channel instead of
directly into the void.
flutter/engine#7307 changes the engine side of embedded UIView to only
reject gestures when the framework sends a `rejectGesture` message, so
that gesture resolution can done after a touch sequence has ended (see
PR description for flutter/engine#7307 for more details).
This change makes the framework send a `rejectGesture` message to the
engine when a UiKitView rejects a gesture.
I'm planning to land this PR before the engine side change, so right now
it swallows the exception thrown if there is no engine implementation
for `rejectGesture` (which keeps us with the current behavior). After
this change lands I'll land the engine PR, and then clean up the part
that swallows the exception.
* Fix bug in calculation of downstream text distance when aligned: right
* After having affinity explained to me, match getOffset and tests to
expected behavior
* Clean up test formatting and fix analyze errors
* Improve test comments and reorganize a bit
* Specify logical pixels
* InputDecorator param for alignment of label
* Put baseline/center code in the right place where label is layed out
* Fix existing test
* Test top label positioning
* Rename to alignLabelWithHint, and make it a bool
* Test for TextField with and without alignLabelWithHint set
* alignLabelWithHint in theme as well
* debugFillProperties addition and test
* Small style fixes for review
* Fix analyze const error
