PersistedNullableDoubleSignal class - signals_flutter library

Constructors

PersistedNullableDoubleSignal(double? val, String key, {SignalsKeyValueStore? store}): Creates a new NullableDoubleSignal.

Properties

autoDispose ↔ bool: Throws and error if read after dispose and can be disposed on last unsubscribe.
getter/setter pairinherited
debugLabel → String?: Debug label for Debug Mode
finalinherited
disposed ↔ bool: Check if the effect is disposed
getter/setter pairinherited
equalityCheck ↔ bool Function(double? a, double? b): Optional method to check if to values are the same
getter/setter pairinherited
globalId → int: Global ID of the signal
finalinherited
hashCode → int: The hash code for this object.
no setterinherited
internalValue → double?: no setterinherited
isInitialized → bool: Check if a signal value is set (does not subscribe)
no setterinherited
key → String: The key to use for storing the value.
finalinherited
loaded ↔ bool: Whether the signal has been loaded from the store.
getter/setter pairinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
sign → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
The sign of the double's numerical value.
no setter
store → SignalsKeyValueStore: The store to use for storing the value.
finalinherited
value ↔ double?: Compute the current value
getter/setter pairinherited
version ↔ int: Version numbers should always be >= 0, because the special value -1 is used by Nodes to signify potentially unused but recyclable nodes.
getter/setter pairinherited

Methods

abs() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
afterCreate(double? val) → void: Internal hook for after a signal is created
inherited
beforeUpdate(double? val) → void: Internal hook for after a signal is updated
inherited
call() → double?: Return the value when invoked
inherited
ceil() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the least integer that is not smaller than this number.
ceilToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the least integer double value no smaller than this.
decode(String value) → double?: Decodes the value from a string.
override
dispose() → void: Dispose the signal
inherited
encode(double? value) → String: Encodes the value to a string.
override
floor() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the greatest integer no greater than this number.
floorToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the greatest integer double value no greater than this.
get() → double?: Helper method to get the current value
inherited
init() → Future<void>: Initializes the signal by loading the value from the store.
inherited
internalRefresh() → bool: inherited
load() → Future<double?>: Loads the value from the store.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onDispose(void cleanup()) → void Function(): Add a cleanup function to be called when the signal is disposed
inherited
overrideWith(double? val) → Signal<double?>: Override the current signal with a new value as if it was created with it
inherited
peek() → double?: In the rare instance that you have an effect that should write to another signal based on the previous value, but you don't want the effect to be subscribed to that signal, you can read a signals's previous value via signal.peek().
inherited
readonly() → ReadonlySignal<double?>: Returns a readonly signal
inherited
remainder(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
round() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer closest to this number.
roundToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer double value closest to this.
save(double? value) → Future<void>: Saves the value to the store.
inherited
set(double? val, {bool force = false}) → bool: Set the current value by a method
inherited
subscribe(void fn(double? value)) → void Function(): Subscribe to value changes with a dispose function
inherited
subscribeToNode(Node node) → void: inherited
toJson() → dynamic: Convert value to JSON
inherited
toString() → String: A string representation of this object.
inherited
truncate() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer obtained by discarding any fractional part of this number.
truncateToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer double value obtained by discarding any fractional digits from this.
unsubscribeFromNode(Node node) → void: inherited

Operators

operator %(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator *(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator +(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator -(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator /(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator ==(Object other) → bool: The equality operator.
inherited
operator unary-() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator ~/(num other) → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension