partial void OnHandlerChangingPartial(HandlerChangingEventArgs args) { if (args.OldHandler != null && args.NewHandler == null) { DisconnectHandler(); } }
private protected override void OnHandlerChangingCore(HandlerChangingEventArgs args) { _gestureManager?.Dispose(); _gestureManager = null; base.OnHandlerChangingCore(args); }
partial void OnHandlerChangingPartial(HandlerChangingEventArgs args) { _connectedToHandler = false; if (args.OldHandler != null && args.NewHandler == null) { OnHandlerDisconnected(args.OldHandler.PlatformView as FrameworkElement); } }
partial void OnHandlerChangingPartial(HandlerChangingEventArgs args) { _callConnectHandler = false; if (args.OldHandler != null && args.NewHandler == null) { OnDisconnectHandler(args.OldHandler.PlatformView as FrameworkElement); } else if (args.OldHandler == null && args.NewHandler != null) { _callConnectHandler = true; } }
private protected override void OnHandlerChangingCore(HandlerChangingEventArgs args) { base.OnHandlerChangingCore(args); if (args.NewHandler == null) { PagesChanged -= OnPagesChanged; WireUnwireChanges(false); } else if (args.OldHandler == null) { PagesChanged += OnPagesChanged; WireUnwireChanges(true); } OnHandlerChangingPartial(args); void OnPagesChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) { WireUnwireChanges(false); Handler?.UpdateValue(TabbedPage.ItemsSourceProperty.PropertyName); WireUnwireChanges(true); } void WireUnwireChanges(bool wire) { foreach (var page in Children) { if (wire) { page.PropertyChanged += OnPagePropertyChanged; } else { page.PropertyChanged -= OnPagePropertyChanged; } } } void OnPagePropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e) { if (e.PropertyName == Page.TitleProperty.PropertyName) { Handler?.UpdateValue(TabbedPage.ItemsSourceProperty.PropertyName); } } }
private protected override void OnHandlerChangingCore(HandlerChangingEventArgs args) { base.OnHandlerChangingCore(args); if (Device.Idiom == TargetIdiom.Phone) { return; } if (args.NewHandler == null) { DeviceDisplay.MainDisplayInfoChanged -= OnMainDisplayInfoChanged; } else if (args.OldHandler == null) { DeviceDisplay.MainDisplayInfoChanged += OnMainDisplayInfoChanged; } }
partial void OnHandlerChangingPartial(HandlerChangingEventArgs args);