Convert child to children assist

Changes a child argument to a children argument,
and wraps the argument value in a list.

Live templates

Live templates can be used to speed up entering typical code structures.
They are invoked by typing their prefix, and then selecting it in the code
completion window:

The Flutter plugin includes the following templates:

Prefix stless: Create a new subclass of StatelessWidget.

Prefix stful: Create a new subclass of StatefulWidget and
its associated State subclass.

Prefix stanim: Create a new subclass of StatefulWidget and its
associated State subclass, including a field initialized with an
AnimationController.

You can also define custom templates in Settings > Editor > Live Templates.

Keyboard shortcuts

Hot reload

On macOS (keymap Mac OS X 10.5+ copy) the keyboard shortcuts are
Command+Option and Command+Backslash.