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Document that you can call runApp again (#9526)

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This is such a fundamental property of the system that we forgot to
document it.

Fixes #6818
This commit is contained in:
Adam Barth 2017-04-21 09:32:32 -07:00 committed by Ian Hickson
parent 37fafeecb1
commit 31b1964a23
1 changed files with 8 additions and 2 deletions
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10
packages/flutter/lib/src/widgets/binding.dart
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@ -121,10 +121,10 @@ abstract class WidgetsBinding extends BindingBase implements GestureBinding, Ren
final BuildOwner _buildOwner = new BuildOwner();
/// The object in charge of the focus tree.
///
///
/// Rarely used directly. Instead, consider using [FocusScope.of] to obtain
/// the [FocusScopeNode] for a given [BuildContext].
///
///
/// See [FocusManager] for more details.
final FocusManager focusManager = new FocusManager();
@ -410,6 +410,12 @@ abstract class WidgetsBinding extends BindingBase implements GestureBinding, Ren
/// (e.g., the top), consider using the [Align] widget. If you wish to center
/// your widget, you can also use the [Center] widget
///
/// Calling [runApp] again will detach the previous root widget from the screen
/// and attach the given widget in its place. The new widget tree is compared
/// against the previous widget tree and any differences are applied to the
/// underlying render tree, similar to what happens when a [StatefulWidget]
/// rebuilds after calling [State.setState].
///
/// Initializes the binding using [WidgetsFlutterBinding] if necessary.
///
/// See also: