didChangeAppLifecycleState method

@override void didChangeAppLifecycleState(AppLifecycleState state)

Called when the system puts the app in the background or returns the app to the foreground.

An example of implementing this method is provided in the class-level documentation for the WidgetsBindingObserver class.

This method exposes notifications from SystemChannels.lifecycle.

See also:

• AppLifecycleListener, an alternative API for responding to application lifecycle changes.

Implementation

@override
void didChangeAppLifecycleState(AppLifecycleState state) {
  // On resume, let the shared session rotate if it has gone idle past the
  // timeout — so both analytics grouping and session-scoped frequency caps
  // see a fresh session. Owned here (the SDK's lifecycle observer), not in
  // analytics.
  if (state == AppLifecycleState.resumed) {
    SessionManager.instance.maybeExpire();
  }
  // detached = permanent process destruction. Not paused (every background).
  DigiaAnalyticsService.instance.appLifecycleChanged(state);
  if (state == AppLifecycleState.detached) {
    _activePlugin?.teardown();
    _activePlugin = null;
  }
  // Closes/reopens the live-test stream on background/resume so a stale
  // presence lease isn't held between heartbeats.
  LiveTestService.instance.onAppLifecycleChanged(state);
}