ErrorWidget class
A widget that renders an exception's message.
This widget is used when a build method fails, to help with determining
where the problem lies. Exceptions are also logged to the console, which you
can read using flutter logs. The console will also include additional
information such as the stack trace for the exception.
It is possible to override this widget.
This example shows how to override the standard error widget builder in release
mode, but use the standard one in debug mode.
link
The error occurs when you click the "Error Prone" button.
To create a local project with this code sample, run:
flutter create --sample=widgets.ErrorWidget.1 mysample
See also:
- FlutterError.onError, which can be set to a method that exits the application if that is preferable to showing an error message.
- docs.flutter.dev/testing/errors, more information about error handling in Flutter.
- Inheritance
Constructors
- ErrorWidget(Object exception)
- Creates a widget that displays the given exception.
- ErrorWidget.withDetails({String message = '', FlutterError? error})
- Creates a widget that displays the given error message.
Properties
Methods
-
createElement(
) → LeafRenderObjectElement -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
-
createRenderObject(
BuildContext context) → RenderBox -
Creates an instance of the RenderObject class that this
RenderObjectWidget represents, using the configuration described by this
RenderObjectWidget.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
override
-
didUnmountRenderObject(
covariant RenderObject renderObject) → void -
A render object previously associated with this widget has been removed
from the tree. The given RenderObject will be of the same type as
returned by this object's createRenderObject.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
-
updateRenderObject(
BuildContext context, covariant RenderObject renderObject) → void -
Copies the configuration described by this RenderObjectWidget to the
given RenderObject, which will be of the same type as returned by this
object's createRenderObject.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- builder ↔ ErrorWidgetBuilder
-
The configurable factory for ErrorWidget.
getter/setter pair