onAccessibilityFeaturesChanged property

VoidCallback onAccessibilityFeaturesChanged

A callback that is invoked when the value of accessibilityFlags changes.

The framework invokes this callback in the same zone in which the callback was set.

Implementation 

VoidCallback get onAccessibilityFeaturesChanged => _onAccessibilityFeaturesChanged;
void onAccessibilityFeaturesChanged= (VoidCallback callback)

Implementation 

set onAccessibilityFeaturesChanged(VoidCallback callback) {
  _onAccessibilityFeaturesChanged = callback;
  _onAccessibilityFlagsChangedZone = Zone.current;
}