FlutterError class Null safety
Error class used to report Flutter-specific assertion failures and contract violations.
See also:
- flutter.dev/docs/testing/errors, more information about error handling in Flutter.
- Inheritance
- Implemented types
- Mixed in types
Constructors
- FlutterError(String message)
-
Create an error message from a string.
factory
-
FlutterError.fromParts(List<
DiagnosticsNode> diagnostics) - Create an error message from a list of DiagnosticsNodes.
Properties
-
diagnostics
→ List<
DiagnosticsNode> -
The information associated with this error, in structured form.
final
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- message → String
-
The message associated with this error.
read-onlyoverride
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- stackTrace → StackTrace?
-
The stack trace at the point where this error was first thrown.
read-onlyinherited
Methods
-
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
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent 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.
override
-
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 brief description of this object, usually just the runtimeType and the
hashCode.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- demangleStackTrace ↔ StackTraceDemangler
-
Called by the Flutter framework before attempting to parse a StackTrace.
read / write
- onError ↔ FlutterExceptionHandler?
-
Called whenever the Flutter framework catches an error.
read / write
- presentError ↔ FlutterExceptionHandler
-
Called whenever the Flutter framework wants to present an error to the
users.
read / write
Static Methods
-
addDefaultStackFilter(
StackFilter filter) → void - Adds a stack filtering function to defaultStackFilter.
-
defaultStackFilter(
Iterable< String> frames) → Iterable<String> - Converts a stack to a string that is more readable by omitting stack frames that correspond to Dart internals.
-
dumpErrorToConsole(
FlutterErrorDetails details, {bool forceReport = false}) → void - Prints the given exception details to the console.
-
reportError(
FlutterErrorDetails details) → void - Calls onError with the given details, unless it is null.
-
resetErrorCount(
) → void - Resets the count of errors used by dumpErrorToConsole to decide whether to show a complete error message or an abbreviated one.
Constants
- wrapWidth → const int
-
The width to which dumpErrorToConsole will wrap lines.
100