FrChangeNotifierVM<M extends dynamic> class abstract

support Provider-Consumer adapt ChangeNotifierProvider use ChangeNotifier

Inheritance
Mixed-in types
Available extensions

Constructors

FrChangeNotifierVM()

Properties

hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
initValue → M
when _subject init, get seed value
no setterinherited
logExtra → LogExtra?
set put log type
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stream ↔ ValueStream<M>
subject.stream
getter/setter pairinherited
subject → BehaviorSubject<M>
no setterinherited
value → M
subject.value
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
autoDispose<T extends StreamSubscription?>(T subs, {String? tag}) → T
inherited
autoDisposeNotifier<N extends ChangeNotifier?>(N ntf, {String? tag}) → N
inherited
debounce<R>(Object tag, Duration duration, FutureOr<R> action(), {Duration? maxDuration}) → FutureOr<R?>
debounce 防抖: 停止操作后等待 duration 执行最后一次。 maxDuration: 可选，解决“无限重置”问题。如果持续触发超过此时间，强制执行一次。
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
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
frPrint(String message, {DateTime? time, int? sequenceNumber, int? level, String? name, Zone? zone, Object? error, StackTrace? stackTrace}) → dynamic
inherited
isDebounceLocked(Object tag) → bool
检查是否正在防抖等待中
inherited
isMutexLocked(Object tag) → bool
检查是否正在执行 mutex 任务
inherited
isThrottleLocked(Object tag) → bool
检查是否处于节流冷却期
inherited
listen(void onChange(T ntf)?, {bool where(T ntf)?}) → T

Available on T, provided by the ChangeNotifierX extension

where filter the notification,
logger(String message, {LogExtra? logExtra = !kReleaseMode ? LogExtra.self : null, bool uriFrame = false, DateTime? time, int? sequenceNumber, int level = 0, String? name, Zone? zone, Object? error, StackTrace? stackTrace}) → dynamic
logExtra print stack frame info name logger.name null: and if logExtra ==null: will use 'runtimeType' else: will use stack frame info stackTrace will print with red color by dev.log but if error == null: will ignore stackTrace
inherited
mutex<R>(Object tag, FutureOr<R> action()) → FutureOr<R?>
mutex 互斥锁 (Exhaust): 立即执行，执行期间的触发直接丢弃。
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners([FutureOr<M> update(M old)?]) → void
when invoke FrChangeNotifierMx.notifyListeners must invoke update (put)
inherited
ntfBy<T extends ChangeNotifier>(String tag) → T
inherited
put(M value) → M
when invoke update (put) will call ChangeNotifier.notifyListeners
inherited
putError(Object error, [StackTrace? stackTrace]) → void
put error value to _subject
inherited
putWithLogging(M value, {OnLogging<M>? logging}) → M
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
runCatching<R>(FutureOr<R?> block(), {FutureOr<R?> onSuccess(R data)?, FutureOr<R?> onFailure(Object e, StackTrace s)?, bool ignoreSkipError = true, int slowlyMs = 0, Object? debounceTag, Object? throttleTag, Object? mutexTag}) → FutureOr<R?>
run and catch error, then putError
inherited
skpIf(bool condition, String reason) → void
if you want interrupt the normal flow, but not trigger runCatching.onFailure
inherited
skpIfNull(Object? obj, String reason) → void
if obj ==null, throw SkipError ref skpIf
inherited
skpNull<T>(T? obj, String reason) → T
if obj == null: throw SkipError else: return obj!
inherited
subBy<T extends StreamSubscription>(String tag) → T
inherited
throttle<R>(Object tag, Duration duration, FutureOr<R> action(), {bool ensureLast = false}) → FutureOr<R?>
throttle 节流: 固定频率执行。 配合 mutex 解决异步任务重叠问题：如果周期到了但上次任务还没跑完，直接跳过。 ensureLast: 如果为 true，则在节流期间的最后一次触发将被防抖补发。
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 brief description of this object, usually just the runtimeType and the hashCode.
inherited
update(FutureOr<M> updater(M old), {dynamic onError(Object e, StackTrace s)?, int slowlyMs = 100, Object? debounceTag, Object? throttleTag, Object? mutexTag, dynamic ignoreSkipError = true, String onPutLogging(M cur)?, OnLogging<M>? logging}) → FutureOr<M?>
updater if return value, will call put if return null, will not call put/putError onError if set null，will call putError if set function value, will not call putError, you can invoke putError manually slowlyMs if set <=0 value, will ignore debounce/throttleTag debounceTag enable debounce, require unique within the VM scope throttleTag enable throttle， require unique within the VM scope mutexTag enable concurrency lock (Exhaustive behavior), if the previous update with the same mutexTag is still running, the current update will be ignored. ignoreSkipError ref runCatching.ignoreSkipError
inherited
updateRaw(FutureOr<M> up(M old), {dynamic onError(Object e, StackTrace s)?, int slowlyMs = 100, Object? debounceTag, Object? throttleTag, dynamic ignoreSkipError = true}) → FutureOr<M?>
Deprecated use 'update'
inherited

Operators

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