DVCancellation class final
A request to stop, which a caller or an owner's lifecycle can make.
One token may be handed to several runs; cancelling it cancels all of them. Cancelling twice keeps the first reason.
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- isCancelled → bool
-
no setter
- reason → String?
-
Why, when it was said.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
whenCancelled
→ Future<
void> -
Completes when the token is cancelled.
no setter
Methods
-
cancel(
[String? reason]) → void -
dispose(
) → void - Stops watching an owner without cancelling.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onCancel(
void listener()) → void Function() -
Registers
listener; returns a function that removes it. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
until<
T> (DVLifecycleSignal< T> owner, bool ended(T state)) → DVCancellation -
A token that cancels itself when
ownerreaches a stateendedaccepts -- a page disposing, a request completing, the app shutting down -- so a result is never delivered to something that is gone.