PerflutterTracker class
Core tracker that stores session metrics and notifies listeners.
- Inheritance
-
- Object
- ChangeNotifier
- PerflutterTracker
- Mixed-in types
Properties
- collectEnabled → bool
-
Whether report screen displays collected (aggregated) entries.
no setter
- currentScreen → ScreenPerformanceData?
-
Screen currently being tracked.
no setter
- enabled ↔ bool
-
Whether tracking and observer processing are active.
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
-
history
↔ List<
ScreenPerformanceData> -
Completed screen performance snapshots.
getter/setter pair
-
journey
→ List<
String> -
Ordered route history for the current session.
final
- reportOverlayActive → bool
-
Whether the Perflutter report overlay is currently visible.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sessionStartTime ↔ DateTime
-
Session start timestamp.
getter/setter pair
- triggerMode ↔ PerflutterTriggerMode
-
Current trigger mode used by PerflutterTrigger.
getter/setter pair
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
didChangeAccessibilityFeatures(
) → void -
Called when the system changes the set of currently active accessibility
features.
inherited
-
didChangeAppLifecycleState(
AppLifecycleState state) → void -
Called when the system puts the app in the background or returns
the app to the foreground.
override
-
didChangeLocales(
List< Locale> ? locales) → void -
Called when the system tells the app that the user's locale has
changed. For example, if the user changes the system language
settings.
inherited
-
didChangeMetrics(
) → void -
Called when the application's dimensions change. For example,
when a phone is rotated.
inherited
-
didChangePlatformBrightness(
) → void -
Called when the platform brightness changes.
inherited
-
didChangeTextScaleFactor(
) → void -
Called when the platform's text scale factor changes.
inherited
-
didChangeViewFocus(
ViewFocusEvent event) → void -
Called whenever the PlatformDispatcher receives a notification that the
focus state on a view has changed.
inherited
-
didHaveMemoryPressure(
) → void -
Called when the system is running low on memory.
inherited
-
didPopRoute(
) → Future< bool> -
Called when the system tells the app to pop the current route, such as
after a system back button press or back gesture.
inherited
-
didPushRoute(
String route) → Future< bool> -
Called when the host tells the application to push a new route onto the
navigator.
inherited
-
didPushRouteInformation(
RouteInformation routeInformation) → Future< bool> -
Called when the host tells the application to push a new
RouteInformation and a restoration state onto the router.
inherited
-
didRequestAppExit(
) → Future< AppExitResponse> -
Called when a request is received from the system to exit the application.
inherited
-
dispose(
) → void -
Discards any resources used by the object. After this is called, the
object is not in a usable state and should be discarded (calls to
addListener will throw after the object is disposed).
override
-
handleCancelBackGesture(
) → void -
Called when a predictive back gesture is canceled, indicating that no
navigation should occur.
inherited
-
handleCommitBackGesture(
) → void -
Called when a predictive back gesture is finished successfully, indicating
that the current route should be popped.
inherited
-
handleStartBackGesture(
PredictiveBackEvent backEvent) → bool -
Called at the start of a predictive back gesture.
inherited
-
handleStatusBarTap(
) → void -
Called when the user taps the status bar on iOS, to scroll a scroll
view to the top.
inherited
-
handleUpdateBackGestureProgress(
PredictiveBackEvent backEvent) → void -
Called when a predictive back gesture moves.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
onScreenChanged(
String? screenName, {bool isPop = false}) → void - Registers a route transition with optional pop semantics.
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
reset(
) → void - Clears journey/history and starts a fresh tracking session.
-
setCollectEnabled(
bool value) → void - Stores collect chip state for the current app session.
-
setReportOverlayActive(
bool value) → void - Tracks report overlay visibility without pausing frame collection.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- instance → PerflutterTracker
-
Singleton tracker instance used by package widgets.
final