ReceivedCancellationSignal class

A CancellationSignal that was created somewhere else and received by some client, typically AndroidContentProvider.

Can only be observed, and cannot be cancelled, because when such a signal is cancelled by the receiver, the creator cannot listen to this cancel, and probably doesn't even expect this.

Also, if receiver wants to end the operation, it should be able to just return (or throw) explicitly, instead of cancelling the signal, making this operation essentially useless.

Inheritance

• Object
• Interoperable
• ReceivedCancellationSignal

Implementers

• CancellationSignal

Constructors

ReceivedCancellationSignal.fromId(String _id)

Creates cancellation signal from an existing ID.

Properties

cancelled → bool

Whether the operation is cancalled.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

id → String

An ID of an object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

dispose() → void

Disposes the cancellation signal.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setCancelListener(VoidCallback? listener) → void

Sets the cancellation listener to be called when canceled.

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited