CupertinoDialogRoute<T> class

A dialog route that shows an iOS-style dialog.

It is used internally by showCupertinoDialog or can be directly pushed onto the Navigator stack to enable state restoration. See showCupertinoDialog for a state restoration app example.

This function takes a builder which typically builds a Dialog widget. Content below the dialog is dimmed with a ModalBarrier. The widget returned by the builder does not share a context with the location that showDialog is originally called from. Use a StatefulBuilder or a custom StatefulWidget if the dialog needs to update dynamically.

The context argument is used to look up CupertinoLocalizations.modalBarrierDismissLabel, which provides the modal with a localized accessibility label that will be used for the modal's barrier. However, a custom barrierLabel can be passed in as well.

The barrierDismissible argument is used to indicate whether tapping on the barrier will dismiss the dialog. It is true by default and cannot be null.

The barrierColor argument is used to specify the color of the modal barrier that darkens everything below the dialog. If null, then CupertinoDynamicColor.resolve is used to compute the modal color.

The settings argument define the settings for this route. See RouteSettings for details.

A DisplayFeature can split the screen into sub-screens. The closest one to anchorPoint is used to render the content.

If no anchorPoint is provided, then Directionality is used:

for TextDirection.ltr, anchorPoint is Offset.zero, which will cause the content to appear in the top-left sub-screen.
for TextDirection.rtl, anchorPoint is Offset(double.maxFinite, 0), which will cause the content to appear in the top-right sub-screen.

If no anchorPoint is provided, and there is no Directionality ancestor widget in the tree, then the widget asserts during build in debug mode.

Constructors

CupertinoDialogRoute({required WidgetBuilder builder, required BuildContext context, bool barrierDismissible = true, Color? barrierColor, String? barrierLabel, Duration transitionDuration = const Duration(milliseconds: 250), RouteTransitionsBuilder? transitionBuilder, RouteSettings? settings, bool? requestFocus, Offset? anchorPoint}): A dialog route that shows an iOS-style dialog.

Properties

allowSnapshotting → bool: Whether the route transition will prefer to animate a snapshot of the entering/exiting routes.
no setterinherited
anchorPoint → Offset?: The anchor point used to pick the closest sub-screen.
finalinherited
animation → Animation<double>?: The animation that drives the route's transition and the previous route's forward transition.
no setterinherited
barrierColor → Color?: The color to use for the modal barrier. If this is null, the barrier will be transparent.
no setterinherited
barrierCurve → Curve: The curve that is used for animating the modal barrier in and out.
no setterinherited
barrierDismissible → bool: Whether you can dismiss this route by tapping the modal barrier.
no setterinherited
barrierLabel → String?: The semantic label used for a dismissible barrier.
no setterinherited
canPop → bool: Whether this route can be popped.
no setterinherited
completed → Future<T?>: This future completes only once the transition itself has finished, after the overlay entries have been removed from the navigator's overlay.
no setterinherited
controller → AnimationController?: The animation controller that the route uses to drive the transitions.
no setterinherited
currentResult → T?: When this route is popped (see Navigator.pop) if the result isn't specified or if it's null, this value will be used instead.
no setterinherited
debugLabel → String: A short description of this route useful for debugging.
no setterinherited
delegatedTransition → DelegatedTransitionBuilder?: The DelegatedTransitionBuilder provided to the route below this one in the navigation stack.
no setterinherited
filter → ImageFilter?: The filter to add to the barrier.
finalinherited
finishedWhenPopped → bool: Controls whether didPop calls NavigatorState.finalizeRoute.
no setterinherited
hasActiveRouteBelow → bool: Whether there is at least one active route underneath this route.
no setterinherited
hashCode → int: The hash code for this object.
no setterinherited
hasScopedWillPopCallback → bool: True if one or more WillPopCallback callbacks exist.
no setterinherited
impliesAppBarDismissal → bool: Whether an AppBar in the route should automatically add a back button or close button.
no setterinherited
isActive → bool: Whether this route is on the navigator.
no setterinherited
isCurrent → bool: Whether this route is the top-most route on the navigator.
no setterinherited
isFirst → bool: Whether this route is the bottom-most active route on the navigator.
no setterinherited
maintainState → bool: Whether the route should remain in memory when it is inactive.
no setterinherited
navigator → NavigatorState?: The navigator that the route is in, if any.
no setterinherited
offstage ↔ bool: Whether this route is currently offstage.
getter/setter pairinherited
opaque → bool: Whether the route obscures previous routes when the transition is complete.
no setterinherited
overlayEntries → List<OverlayEntry>: The overlay entries of this route.
no setterinherited
popDisposition → RoutePopDisposition: Returns RoutePopDisposition.doNotPop if any of the PopEntry instances registered with registerPopEntry have PopEntry.canPopNotifier set to false.
no setterinherited
popGestureEnabled → bool: Whether a pop gesture can be started by the user for this route.
no setterinherited
popGestureInProgress → bool: True if a back gesture (iOS-style back swipe or Android predictive back) is currently underway for this route.
no setterinherited
popped → Future<T?>: A future that completes when this route is popped off the navigator.
no setterinherited
receivedTransition ↔ DelegatedTransitionBuilder?: The DelegatedTransitionBuilder received from the route above this one in the navigation stack.
getter/setter pairinherited
requestFocus → bool: When the route state is updated, request focus if the current route is at the top.
no setterinherited
restorationScopeId → ValueListenable<String?>: The restoration scope ID to be used for the RestorationScope surrounding this route.
no setterinherited
reverseTransitionDuration → Duration: The duration the transition going in reverse.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
secondaryAnimation → Animation<double>?: The animation for the route being pushed on top of this route. This animation lets this route coordinate with the entrance and exit transition of route pushed on top of this route.
no setterinherited
semanticsDismissible → bool: Whether the semantics of the modal barrier are included in the semantics tree.
no setterinherited
settings → RouteSettings: The settings for this route.
no setterinherited
subtreeContext → BuildContext?: The build context for the subtree containing the primary content of this route.
no setterinherited
transitionBuilder ↔ RouteTransitionsBuilder?: Custom transition builder
getter/setter pair
transitionDuration → Duration: The duration the transition going forwards.
no setterinherited
traversalEdgeBehavior → TraversalEdgeBehavior?: Controls the transfer of focus beyond the first and the last items of a FocusScopeNode.
finalinherited
willDisposeAnimationController ↔ bool: Whether to takeover the controller created by createAnimationController.
getter/setter pairinherited
willHandlePopInternally → bool: Whether calling didPop would return false.
no setterinherited

Methods

addLocalHistoryEntry(LocalHistoryEntry entry) → void: Adds a local history entry to this route.
inherited
addScopedWillPopCallback(WillPopCallback callback) → void: Enables this route to veto attempts by the user to dismiss it.
inherited
buildModalBarrier() → Widget: Build the barrier for this ModalRoute, subclasses can override this method to create their own barrier with customized features such as color or accessibility focus size.
inherited
buildPage(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation) → Widget: Override this method to build the primary content of this route.
inherited
buildTransitions(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child) → Widget: Override this method to wrap the child with one or more transition widgets that define how the route arrives on and leaves the screen.
override
canTransitionFrom(TransitionRoute previousRoute) → bool: Returns true if previousRoute should animate when this route is pushed on top of it or when then this route is popped off of it.
inherited
canTransitionTo(TransitionRoute nextRoute) → bool: Returns true if this route supports a transition animation that runs when nextRoute is pushed on top of it or when nextRoute is popped off of it.
inherited
changedExternalState() → void: Called whenever the Navigator has updated in some manner that might affect routes, to indicate that the route may wish to rebuild as well.
inherited
changedInternalState() → void: Called whenever the internal state of the route has changed.
inherited
createAnimation() → Animation<double>: Called to create the animation that exposes the current progress of the transition controlled by the animation controller created by createAnimationController().
inherited
createAnimationController() → AnimationController: Called to create the animation controller that will drive the transitions to this route from the previous one, and back to the previous route from this one.
inherited
createOverlayEntries() → Iterable<OverlayEntry>: Subclasses should override this getter to return the builders for the overlay.
inherited
didAdd() → void: Called after install when the route is added to the navigator.
inherited
didChangeNext(Route? nextRoute) → void: This route's next route has changed to the given new route.
inherited
didChangePrevious(Route? previousRoute) → void: This route's previous route has changed to the given new route.
inherited
didComplete(T? result) → void: The route was popped or is otherwise being removed somewhat gracefully.
inherited
didPop(T? result) → bool: A request was made to pop this route. If the route can handle it internally (e.g. because it has its own stack of internal state) then return false, otherwise return true (by returning the value of calling super.didPop). Returning false will prevent the default behavior of NavigatorState.pop.
inherited
didPopNext(Route nextRoute) → void: The given route, which was above this one, has been popped off the navigator.
inherited
didPush() → TickerFuture: Called after install when the route is pushed onto the navigator.
inherited
didReplace(Route? oldRoute) → void: Called after install when the route replaced another in the navigator.
inherited
dispose() → void: Discards any resources used by the object.
override
handleCancelBackGesture() → void: Handles a predictive back gesture ending in cancellation.
inherited
handleCommitBackGesture() → void: Handles a predictive back gesture ending successfully.
inherited
handleStartBackGesture({double progress = 0.0}) → void: Handles a predictive back gesture starting.
inherited
handleUpdateBackGestureProgress({required double progress}) → void: Handles a predictive back gesture updating as the user drags across the screen.
inherited
install() → void: Called when the route is inserted into the navigator.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onPopInvoked(bool didPop) → void: Called after a route pop was handled.
inherited
onPopInvokedWithResult(bool didPop, T? result) → void: Called after a route pop was handled.
inherited
registerPopEntry(PopEntry<Object?> popEntry) → void: Registers the existence of a PopEntry in the route.
inherited
removeLocalHistoryEntry(LocalHistoryEntry entry) → void: Remove a local history entry from this route.
inherited
removeScopedWillPopCallback(WillPopCallback callback) → void: Remove one of the callbacks run by willPop.
inherited
setState(VoidCallback fn) → void: Schedule a call to buildTransitions.
inherited
toString() → String: A string representation of this object.
inherited
unregisterPopEntry(PopEntry<Object?> popEntry) → void: Unregisters a PopEntry in the route's widget subtree.
inherited
willPop() → Future<RoutePopDisposition>: Returns RoutePopDisposition.doNotPop if any of callbacks added with addScopedWillPopCallback returns either false or null. If they all return true, the base Route.willPop's result will be returned. The callbacks will be called in the order they were added, and will only be called if all previous callbacks returned true.
inherited

Operators

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

CupertinoDialogRoute<T> class

Constructors

Properties

Methods

Operators

cupertino library