KeepAliveController class
- Inheritance
-
- Implemented types
-
Constructors
-
KeepAliveController.new({int initialPage = 0, int offLimit = 1})
-
PageView子Page缓存控制器, 需要在PageView页面改变时候调用changePage方法方可生效
initialPage PageView默认Page
offLimit 需要缓存几个子Page，默认1: 代表当前页面左右各缓存一个页面
Properties
-
currPage
→ int
-
no setter
-
hashCode
→ int
-
The hash code for this object.
no setterinherited
-
hasListeners
→ bool
-
no setterinherited
-
initialized
→ bool
-
Checks whether the controller has already been initialized.
no setterinherited
-
isClosed
→ bool
-
Checks whether the controller has already been closed.
no setterinherited
-
listeners
→ int
-
no setterinherited
-
offLimit
→ int
-
no setter
-
onDelete
→ InternalFinalCallback<void>
-
Internal callback that starts the cycle of this controller.
finalinherited
-
onStart
→ InternalFinalCallback<void>
-
Called at the exact moment the widget is allocated in memory.
It uses an internal "callable" type, to avoid any @overrides in subclases.
This method should be internal and is required to define the
lifetime cycle of the subclass.
finalinherited
-
runtimeType
→ Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
$configureLifeCycle()
→ void
-
inherited
-
addListener(GetStateUpdate listener)
→ Disposer
-
Register a closure to be called when the object notifies its listeners.
inherited
-
addListenerId(Object? key, GetStateUpdate listener)
→ Disposer
-
inherited
-
changePage(int page)
→ void
-
当前页面发生了改变
-
dispose()
→ void
-
inherited
-
disposeId(Object id)
→ void
-
To dispose an
id from future updates(), this ids are registered
by GetBuilder() or similar, so is a way to unlink the state change with
the Widget from the Controller.
inherited
-
getKey()
→ String
-
inherited
-
isWantKeepAlive(int pageIndex)
→ bool
-
pageIndex页是否需要缓存
-
noSuchMethod(Invocation invocation)
→ dynamic
-
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyChildrens()
→ void
-
inherited
-
onClose()
→ void
-
Called before
onDelete method. onClose might be used to
dispose resources used by the controller. Like closing events,
or streams before the controller is destroyed.
Or dispose objects that can potentially create some memory leaks,
like TextEditingControllers, AnimationControllers.
Might be useful as well to persist some data on disk.
inherited
-
onInit()
→ void
-
Called immediately after the widget is allocated in memory.
You might use this to initialize something for the controller.
inherited
-
onReady()
→ void
-
Called 1 frame after onInit(). It is the perfect place to enter
navigation events, like snackbar, dialogs, or a new route, or
async request.
inherited
-
refresh()
→ void
-
inherited
-
refreshGroup(Object id)
→ void
-
inherited
-
removeListener(VoidCallback listener)
→ void
-
Remove a previously registered closure from the list of closures that the
object notifies.
inherited
-
removeListenerId(Object id, VoidCallback listener)
→ void
-
inherited
-
toString()
→ String
-
A string representation of this object.
inherited
-
update([List<Object>? ids, bool condition = true])
→ void
-
Rebuilds
GetBuilder each time you call update();
Can take a List of ids, that will only update the matching
GetBuilder( id: ),
ids can be reused among GetBuilders like group tags.
The update will only notify the Widgets, if condition is true.
inherited
