Callers can manually validate by calling validate(), or tell the Form to
validate on every change by setting the `autovalidate` parameter.
Fixes https://github.com/flutter/flutter/issues/7219
This patch replaces uses of Flexible with Expanded where we're using
FlexFit.tight. We still need to think of a better name for the
FlexFit.loose variant.
Also, improve the docs for Row, Column, Flex, and RenderFlex to be more
problem-oriented and to give a complete account of the layout algorithn.
Fixes#6960Fixes#5169
FormField is now a widget that can contain any type of field. Input no
longer has special code to handle form fields. Instead, there is a
helper widget InputFormField for using an Input inside a FormField.
Fixes https://github.com/flutter/flutter/issues/6097 and based on
feedback from the same.
Since we can change the theme's platform, we need to make sure we
propagate that throughout rather than having half the app use the native
platform and half the app use the selected platform.
Developers need to get the size of the BuildContext sufficiently often
that we should provide a convenient getter for the value. Having this
getter is also an opportunity to catch common mistakes and provide
useful error messages that guide developers towards better patterns.
Fixes#2321
These futures complete when the route is popped off the navigator. This
generalizes and simplifies a mechanism already in place for dialogs and
menus.
Fixes#5283
* Add a maxLines parameter for multiline Input.
If maxLines is 1, it's a single line Input that scrolls horizontally.
Otherwise, overflowed text wraps and scrolls vertically, taking up at
most `maxLines`.
Also fixed scrolling behavior so that the Input scrolls ensuring the
cursor is always visible.
Fixes https://github.com/flutter/flutter/issues/6271
* oops
* comments
* import
* test and RO.update fix
* constant
* fix.caretRect
We were trying to cram too much functionality in to the Dialog widget. Now we
have AlertDialog and SimpleDialog to cover to two different kinds of dialogs in
the spec.
This patch fixes the issue in two ways:
1. The content area is now scrollable, which means you can scroll to reveal any
parts that don't fit on screen.
2. The content area is now small enough to fit on screen in landscape on a
Nexus 5.
Fixes#6054
Rather than scrolling the entire contents of the dialog, we should instead
scroll only the part between the title and the button bar.
Also, polish up the padding in the simple dialog demo.
Fixes#6057
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.
