void SetLabeledBy()
{
if (Element == null || Control == null)
{
return;
}
var elemValue = (VisualElement)Element.GetValue(Accessibility.LabeledByProperty);
if (elemValue != null)
{
var id = Control.Id;
if (id == -1)
{
id = Control.Id = FormsAppCompatActivity.GetUniqueId();
}
var renderer = elemValue?.GetRenderer();
renderer?.SetLabelFor(id);
}
}
protected override void OnElementChanged(ElementChangedEventArgs <CarouselPage> e)
{
base.OnElementChanged(e);
var activity = (FormsAppCompatActivity)Context;
if (e.OldElement != null)
{
((IPageController)e.OldElement).InternalChildren.CollectionChanged -= OnChildrenCollectionChanged;
}
if (e.NewElement != null)
{
FormsViewPager pager =
_viewPager =
new FormsViewPager(activity)
{
OverScrollMode = OverScrollMode.Never,
EnableGesture = true,
LayoutParameters = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent),
Adapter = new FormsFragmentPagerAdapter <ContentPage>(e.NewElement, activity.SupportFragmentManager)
{
CountOverride = e.NewElement.Children.Count
}
};
pager.Id = FormsAppCompatActivity.GetUniqueId();
pager.AddOnPageChangeListener(this);
ViewGroup.AddView(pager);
CarouselPage carouselPage = e.NewElement;
if (carouselPage.CurrentPage != null)
{
ScrollToCurrentPage();
}
((IPageController)carouselPage).InternalChildren.CollectionChanged += OnChildrenCollectionChanged;
}
}
public NavigationPageRenderer()
{
AutoPackage = false;
Id = FormsAppCompatActivity.GetUniqueId();
Device.Info.PropertyChanged += DeviceInfoPropertyChanged;
}
protected override void OnElementChanged(ElementChangedEventArgs <TabbedPage> e)
{
base.OnElementChanged(e);
var activity = (FormsAppCompatActivity)Context;
if (e.OldElement != null)
{
((IPageController)e.OldElement).InternalChildren.CollectionChanged -= OnChildrenCollectionChanged;
}
if (e.NewElement != null)
{
if (_tabLayout == null)
{
TabLayout tabs;
if (FormsAppCompatActivity.TabLayoutResource > 0)
{
tabs = _tabLayout = activity.LayoutInflater.Inflate(FormsAppCompatActivity.TabLayoutResource, null).JavaCast <TabLayout>();
}
else
{
tabs = _tabLayout = new TabLayout(activity)
{
TabMode = TabLayout.ModeFixed, TabGravity = TabLayout.GravityFill
}
};
FormsViewPager pager =
_viewPager =
new FormsViewPager(activity)
{
OverScrollMode = OverScrollMode.Never,
EnableGesture = UseAnimations,
LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent),
Adapter = new FormsFragmentPagerAdapter <Page>(e.NewElement, FragmentManager)
{
CountOverride = e.NewElement.Children.Count
}
};
pager.Id = FormsAppCompatActivity.GetUniqueId();
pager.AddOnPageChangeListener(this);
AddView(pager);
AddView(tabs);
OnChildrenCollectionChanged(null, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
}
TabbedPage tabbedPage = e.NewElement;
if (tabbedPage.CurrentPage != null)
{
ScrollToCurrentPage();
}
((IPageController)tabbedPage).InternalChildren.CollectionChanged += OnChildrenCollectionChanged;
UpdateBarBackgroundColor();
UpdateBarTextColor();
UpdateSwipePaging();
UpdateOffscreenPageLimit();
}
}
public MasterDetailContainer(MasterDetailPage parent, bool isMaster, Context context) : base(parent, isMaster, context)
{
Id = FormsAppCompatActivity.GetUniqueId();
_parent = parent;
_isMaster = isMaster;
}
