ObservableView<T> class abstract

A read-only 'view' of something. Allows getting the current value and listening for values and changes.

Inheritance
Implemented types
Implementers

Constructors

ObservableView.fromStream(Stream<T> stream, {T? initialValue})
An ObservableView of the most-recently-published value on the given stream.
factory

Properties

changes → Stream<Change<T>>
Provides a stream of change pairs.
no setterinherited
firstNonNull → Future<T>
Blocks until value is non-null, and then completes with that value.
no setter
hashCode → int
The hash code for this object.
no setterinherited
nonNullValues → Stream<T>
A Stream of all non-null values on this view, including the current value at the time the stream is listened to (if it's non-null).
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stream → Stream<T>
Provides a stream of object values when the internals change.
no setterinherited
value → T
no setter
values → Stream<T>
A Stream of all values on this view, including the current value at the time the stream is listened to.
no setter

Methods

dispose() → void
Disposes this disposable and any resources it has open.
inherited
map<M>(M mapper(T)) → ObservableView<M>
Returns a new ObservableView which is created by lazily calling mapper on this view's value, stream, and changes properties.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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