ScopeController class abstract AsyncControllerScope

An object with a lifecycle of its own, owned by a scope.

The three methods the scope calls are sealed, so a controller never has to remember to chain to super: performInit runs init, performUnmount runs onUnmount once, and performDispose runs what is left of the teardown and then dispose. Everything a controller has to write is in the three hooks below them.

A controller can also be driven by hand -- in a test, say -- by calling the same three methods in that order.

Constructors

ScopeController()

Properties

hashCode → int
The hash code for this object.
no setterinherited
mounted → bool
Whether the controller is between the start of its initialization and the moment it was let go of.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

dispose() → FutureOr<void>
Releases what init acquired; awaited.
init() → Future<void>
Acquires whatever the controller needs; awaited.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onUnmount() → void
Lets go of whatever cannot wait for dispose.
performDispose() → Future<void>
Runs what is left of the teardown and then dispose, once.
performInit() → Future<void>
Runs init, once. Called by the scope.
performUnmount() → void
Runs onUnmount, once. Called by the scope.
toString() → String
A string representation of this object.
inherited

Operators

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