ObjectEventListener typedef Null safety
A listener of ObjectEvent.
Implementation
typedef ObjectEventListener = void Function(ObjectEvent);- Flutter
- foundation
- ObjectEventListener typedef
foundation library
- Classes
- AbstractNode
- BindingBase
- BitField
- ByteData
- CachingIterable
- Category
- ChangeNotifier
- DebugReassembleConfig
- DiagnosticableNode
- DiagnosticableTree
- DiagnosticableTreeNode
- DiagnosticPropertiesBuilder
- DiagnosticsBlock
- DiagnosticsNode
- DiagnosticsProperty
- DiagnosticsSerializationDelegate
- DiagnosticsStackTrace
- DocumentationIcon
- DoubleProperty
- Endian
- EnumProperty
- ErrorDescription
- ErrorHint
- ErrorSpacer
- ErrorSummary
- Factory
- FlagProperty
- FlagsSummary
- Float32List
- Float64List
- FlutterErrorDetails
- HashedObserverList
- HttpClientResponse
- Int32List
- Int64List
- IntProperty
- IterableProperty
- Key
- LicenseEntry
- LicenseEntryWithLineBreaks
- LicenseParagraph
- LicenseRegistry
- Listenable
- LocalKey
- MemoryAllocations
- MessageProperty
- ObjectCreated
- ObjectDisposed
- ObjectEvent
- ObjectFlagProperty
- ObserverList
- PartialStackFrame
- PercentProperty
- PersistentHashMap
- PlatformDispatcher
- ReadBuffer
- RepetitiveStackFrameFilter
- SingletonFlutterWindow
- StackFilter
- StackFrame
- StringProperty
- Summary
- SynchronousFuture
- TextTreeConfiguration
- TextTreeRenderer
- Uint8List
- Unicode
- UniqueKey
- ValueKey
- ValueListenable
- ValueNotifier
- WriteBuffer
- Mixins
- Diagnosticable
- DiagnosticableTreeMixin
- Constants
- compute
- factory
- immutable
- isCanvasKit
- kDebugMode
- kFlutterMemoryAllocationsEnabled
- kIsWeb
- kMaxUnsignedSMI
- kNoDefaultValue
- kProfileMode
- kReleaseMode
- mustCallSuper
- nonVirtual
- optionalTypeArgs
- precisionErrorTolerance
- protected
- required
- visibleForTesting
- Properties
- activeDevToolsServerAddress
- connectedVmServiceUri
- dashedTextConfiguration
- debugBrightnessOverride
- debugDefaultTargetPlatformOverride
- debugDoublePrecision
- debugInstrumentationEnabled
- debugPrint
- debugPrintDone
- defaultTargetPlatform
- denseTextConfiguration
- errorPropertyTextConfiguration
- errorTextConfiguration
- flatTextConfiguration
- shallowTextConfiguration
- singleLineTextConfiguration
- sparseTextConfiguration
- transitionTextConfiguration
- whitespaceTextConfiguration
- Functions
- binarySearch
- clampDouble
- consolidateHttpClientResponseBytes
- debugAssertAllFoundationVarsUnset
- debugFormatDouble
- debugInstrumentAction
- debugPrintStack
- debugPrintSynchronously
- debugPrintThrottled
- debugWordWrap
- describeEnum
- describeIdentity
- lerpDuration
- listEquals
- mapEquals
- mergeSort
- objectRuntimeType
- setEquals
- shortHash
- Enums
- Brightness
- DiagnosticLevel
- DiagnosticsTreeStyle
- FoundationServiceExtensions
- TargetPlatform
- Typedefs
- AsyncCallback
- AsyncValueGetter
- AsyncValueSetter
- BytesReceivedCallback
- ComputeCallback
- ComputeImpl
- ComputePropertyValueCallback
- DebugPrintCallback
- DiagnosticPropertiesTransformer
- FlutterExceptionHandler
- InformationCollector
- IterableFilter
- LicenseEntryCollector
- ObjectEventListener
- ServiceExtensionCallback
- StackTraceDemangler
- ValueChanged
- ValueGetter
- ValueSetter
- VoidCallback
- Exceptions
- FlutterError