FallbackScreen class

A collection of pre-built fallback UI components for crash recovery and degraded states.

These are built exclusively with core Material widgets and have no external dependencies. They are designed to be crash-proof — if these fail, the architecture has failed. A full-screen fallback for fatal crashes.

This is used by RecoverableApp when not providing a custom recoveryScreenBuilder. Can also be used standalone.

FallbackScreen(
  title: 'Something went wrong',
  subtitle: 'The app encountered an unexpected error.',
  onRestart: () => Navigator.of(context).pushReplacementNamed('/'),
  onStartFresh: () {
    SnapshotManager.instance.wipe();
    Navigator.of(context).pushReplacementNamed('/');
  },
)
Inheritance

Constructors

FallbackScreen({Key? key, String title = 'Something went wrong', String subtitle = 'An unexpected error occurred.', ErrorFingerprint? fingerprint, AppSnapshot? lastSnapshot, required VoidCallback onRestart, required VoidCallback onStartFresh, bool isInCrashLoop = false})
const

Properties

fingerprint → ErrorFingerprint?
final
hashCode → int
The hash code for this object.
no setterinherited
isInCrashLoop → bool
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
lastSnapshot → AppSnapshot?
final
onRestart → VoidCallback
final
onStartFresh → VoidCallback
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
subtitle → String
final
title → String
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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.
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, int wrapWidth = 65}) → 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

Operators

operator ==(Object other) → bool
The equality operator.
inherited