NestedBackButtonDispatcher class

Inheritance

Constructors

NestedBackButtonDispatcher.new(BackButtonDispatcher parent, {required Route route})

Properties

hasCallbacks → bool
Whether a callback is currently registered.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
parent → BackButtonDispatcher
The back button dispatcher that this object will attempt to take priority over when takePriority is called.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addCallback(ValueGetter<Future<bool>> callback) → void
Register the callback to be called when the object changes.
inherited
createChildBackButtonDispatcher() → ChildBackButtonDispatcher
Creates a ChildBackButtonDispatcher that is a direct descendant of this back button dispatcher.
inherited
deferTo(ChildBackButtonDispatcher child) → void
Mark the given child as taking priority over this object and the other children.
inherited
dispose() → void
forget(ChildBackButtonDispatcher child) → void
Causes the given child to be removed from the list of children to which this object might defer, as if deferTo had never been called for that child.
inherited
invokeCallback(Future<bool> defaultValue) → Future<bool>
Handles a pop route request.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifiedByParent(Future<bool> defaultValue) → Future<bool>
The parent of this child back button dispatcher decide to let this child to handle the invoke the callback request in BackButtonDispatcher.invokeCallback.
inherited
removeCallback(ValueGetter<Future<bool>> callback) → void
Remove a previously registered callback.
inherited
takePriority() → void
Make this BackButtonDispatcher take priority among its peers.
inherited
toString() → String
A string representation of this object.
inherited

Operators

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