ModalRoute<T> class

A route that blocks interaction with previous routes.

ModalRoutes cover the entire Navigator. They are not necessarily opaque, however; for example, a pop-up menu uses a ModalRoute but only shows the menu in a small box overlapping the previous route.

The T type argument is the return value of the route. If there is no return value, consider using void as the return value.

Inheritance
Mixes-in
Implemented by

Constructors

ModalRoute({RouteSettings settings })
Creates a route that blocks interaction with previous routes.

Properties

animation Animation<double>
The animation that drives the route's transition and the previous route's forward transition.
read-only
barrierColor Color
The color to use for the modal barrier. If this is null, the barrier will be transparent. [...]
read-only
barrierDismissible bool
Whether you can dismiss this route by tapping the modal barrier. [...]
read-only
barrierLabel String
The semantic label used for a dismissible barrier. [...]
read-only
canPop bool
Whether this route can be popped. [...]
read-only
focusScopeNode FocusScopeNode
The node this route will use for its root FocusScope widget.
final
hasScopedWillPopCallback bool
True if one or more WillPopCallback callbacks exist. [...]
@protected, read-only
maintainState bool
Whether the route should remain in memory when it is inactive. [...]
read-only
offstage bool
Whether this route is currently offstage. [...]
read / write
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 routes pushed on top of this route.
read-only
semanticsDismissible bool
Whether the semantics of the modal barrier are included in the semantics tree. [...]
read-only
subtreeContext BuildContext
The build context for the subtree containing the primary content of this route.
read-only
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. [...]
read-only, inherited
controller AnimationController
The animation controller that the route uses to drive the transitions. [...]
@protected, read-only, inherited
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.
read-only, inherited
debugLabel String
A short description of this route useful for debugging.
read-only, inherited
finishedWhenPopped bool
Controls whether didPop calls NavigatorState.finalizeRoute. [...]
read-only, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
isActive bool
Whether this route is on the navigator. [...]
read-only, inherited
isCurrent bool
Whether this route is the top-most route on the navigator. [...]
read-only, inherited
isFirst bool
Whether this route is the bottom-most route on the navigator. [...]
read-only, inherited
The navigator that the route is in, if any.
read-only, inherited
opaque bool
Whether the route obscures previous routes when the transition is complete. [...]
read-only, inherited
overlayEntries List<OverlayEntry>
The entries this route has placed in the overlay.
read-only, inherited
popped Future<T>
A future that completes when this route is popped off the navigator. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
settings RouteSettings
The settings for this route. [...]
final, inherited
transitionDuration Duration
The duration the transition lasts.
read-only, inherited
willHandlePopInternally bool
Whether calling didPop would return false.
read-only, inherited

Methods

addScopedWillPopCallback(WillPopCallback callback) → void
Enables this route to veto attempts by the user to dismiss it. [...]
buildPage(BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation) Widget
Override this method to build the primary content of this route. [...]
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. [...]
changedExternalState() → void
Called whenever the Navigator has its widget rebuilt, to indicate that the route may wish to rebuild as well. [...]
changedInternalState() → void
Called whenever the internal state of the route has changed. [...]
createOverlayEntries() Iterable<OverlayEntry>
Subclasses should override this getter to return the builders for the overlay.
didChangePrevious(Route previousRoute) → void
This route's previous route has changed to the given new route. This is called on a route whenever the previous route changes for any reason, so long as it is in the history. previousRoute will be null if there's no previous route.
didPush() TickerFuture
dispose() → void
install(OverlayEntry insertionPoint) → void
removeScopedWillPopCallback(WillPopCallback callback) → void
Remove one of the callbacks run by willPop. [...]
setState(void fn) → void
Schedule a call to buildTransitions. [...]
@protected
toString() String
willPop() Future<RoutePopDisposition>
Returns the value of the first callback added with addScopedWillPopCallback that returns false. If they all return true, returns the inherited method's result (see Route.willPop). [...]
addLocalHistoryEntry(LocalHistoryEntry entry) → void
Adds a local history entry to this route. [...]
inherited
canTransitionFrom(TransitionRoute previousRoute) bool
Whether this route can perform a transition from the given route. [...]
inherited
canTransitionTo(TransitionRoute nextRoute) bool
Whether this route can perform a transition to the given route. [...]
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
didChangeNext(Route nextRoute) → void
This route's next route has changed to the given new route. This is called on a route whenever the next route changes for any reason, so long as it is in the history, including when a route is first added to a Navigator (e.g. by Navigator.push), except for cases when didPopNext would be called. nextRoute will be null if there's no next route.
inherited
didComplete(T result) → void
The route was popped or is otherwise being removed somewhat gracefully. [...]
@mustCallSuper, @protected, 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 return 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
didReplace(Route oldRoute) → void
Called after install when the route replaced another in the navigator. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
@pragma('vm:entry-point'), inherited
removeLocalHistoryEntry(LocalHistoryEntry entry) → void
Remove a local history entry from this route. [...]
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited

Static Methods

of<T extends Object>(BuildContext context) ModalRoute<T>
Returns the modal route most closely associated with the given context. [...]
withName(String name) RoutePredicate
Returns a predicate that's true if the route has the specified name and if popping the route will not yield the same route, i.e. if the route's willHandlePopInternally property is false. [...]