private void NavBarItems_CollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
if (args.Action != NotifyCollectionChangedAction.Add)
{
return;
}
foreach (NavBarItem item in args.NewItems)
{
NavBar.AddItem(item);
FixedNavBar.AddItem(item);
}
}
public CollapsiblePage()
{
InitializeComponent();
NavBar = new NavBar
{
TitleOpacity = 0,
Page = this,
BindingContext = this,
};
FixedNavBar = new NavBar
{
Opacity = 0,
Page = this,
BindingContext = this
};
headerLayout.Children.Add(NavBar);
fixedLayout.Children.Add(FixedNavBar);
var navBarItems = new ObservableCollection <NavBarItem>();
navBarItems.CollectionChanged += NavBarItems_CollectionChanged;
NavBarItems = navBarItems;
scrollView.Scrolled += Scrolled;
scrollView.TouchDown += ScrollView_TouchDown;
scrollView.TouchUp += ScrollView_TouchUp;
contentLayout.SizeChanged += ContentLayout_SizeChanged;
PropertyChanged += OnAnyPropertyChanged;
var keyboardService = DependencyService.Get <IKeyboardService>();
keyboardService.KeyboardIsShown += KeyboardService_KeyboardIsShown;
keyboardService.KeyboardIsHidden += KeyboardService_KeyboardIsHidden;
}