FocusOnIt class

A widget that notifies when it is focused, unfocused, visible, or invisible.

Inheritance

Constructors

FocusOnIt({required Widget child, GlobalKey<State<StatefulWidget>>? focusKey, VoidCallback? onFocus, VoidCallback? onUnfocus, VoidCallback? onVisibilityGained, VoidCallback? onVisibilityLost, VoidCallback? onForegroundGained, VoidCallback? onForegroundLost, VoidCallback? onDetach, Future<AppExitResponse> onExitRequested()?, VoidCallback? onHide, VoidCallback? onInactive, VoidCallback? onRestart, VoidCallback? onShow, void onStateChange(AppLifecycleState? oldState, AppLifecycleState newState)?, Key? key})
A widget that notifies when a widget is focused or unfocused and react to it.
const

Properties

child → Widget
The widget below this widget in the tree.
final
focusKey → GlobalKey<State<StatefulWidget>>?
The key to be used by the widget responsible for detect the visibility of the widget.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onDetach → VoidCallback?
Callback triggered when the app is detached from the view hierarchy.
final
onExitRequested → (Future<AppExitResponse> Function()?)
Callback triggered when the app is requested to exit.
final
onFocus → VoidCallback?
Equivalent to onResume() on Android and viewDidAppear() on iOS. Triggered when the widget is focused after route transition or the widget resumed from a paused state.
final
onForegroundGained → VoidCallback?
Triggered when the widget is visible after route transition.
final
onForegroundLost → VoidCallback?
Triggered when the widget is no longer visible after route transition.
final
onHide → VoidCallback?
Callback triggered when the app's window becomes hidden.
final
onInactive → VoidCallback?
Callback triggered when the app is in an inactive state.
final
onRestart → VoidCallback?
Callback triggered when the app is restarted.
final
onShow → VoidCallback?
Callback triggered when the app's window becomes visible.
final
onStateChange → (void Function(AppLifecycleState? oldState, AppLifecycleState newState)?)
Callback triggered when the app's lifecycle state changes.
final
onUnfocus → VoidCallback?
Equivalent to onPause() on Android and viewDidDisappear() on iOS. Triggered when the widget is unfocused after route transition or the widget paused from a focused state.
final
onVisibilityGained → VoidCallback?
Triggered when the app is resumed from a paused state.
final
onVisibilityLost → VoidCallback?
Triggered when the app is paused from a resumed state.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<FocusOnIt>
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

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