void OnChildrenCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
e.Apply((o, i, c) => SetupPage((Page)o), (o, i) => TeardownPage((Page)o), Reset);
FormsViewPager pager = _viewPager;
TabLayout tabs = _tabLayout;
((FormsFragmentPagerAdapter <Page>)pager.Adapter).CountOverride = Element.Children.Count;
pager.Adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
tabs.RemoveAllTabs();
tabs.SetupWithViewPager(null);
}
else
{
tabs.SetupWithViewPager(pager);
UpdateTabIcons();
tabs.SetOnTabSelectedListener(this);
}
UpdateIgnoreContainerAreas();
}
protected override void Refresh()
{
var manager = GetCollectionViewManager();
var selectedItem = _tabLayout.GetBindingMemberValue(AttachedMembersDesign.TabLayout.SelectedItem);
if (manager == null)
{
_tabLayout.RemoveAllTabs();
}
else
{
manager.Clear(_tabLayout);
}
IEnumerable itemsSource = ItemsSource;
if (itemsSource == null)
{
return;
}
int count = itemsSource.Count();
for (int index = 0; index < count; index++)
{
var item = GetItem(index);
var tab = CreateTab(item);
if (manager == null)
{
_tabLayout.AddTab(tab, index, ReferenceEquals(selectedItem, item));
}
else
{
manager.Insert(_tabLayout, index, tab);
}
}
}
void OnChildrenCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
e.Apply((o, i, c) => SetupPage((Page)o), (o, i) => TeardownPage((Page)o), Reset);
ViewPager2 pager = _viewPager;
var adapter = (MultiPageFragmentStateAdapter <Page>)pager.Adapter;
adapter.CountOverride = Element.Children.Count;
if (IsBottomTabPlacement)
{
BottomNavigationView bottomNavigationView = _bottomNavigationView;
adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
bottomNavigationView.Menu.Clear();
}
else
{
SetupBottomNavigationView(e);
bottomNavigationView.SetOnItemSelectedListener(_listeners);
}
UpdateIgnoreContainerAreas();
}
else
{
TabLayout tabs = _tabLayout;
adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
tabs.RemoveAllTabs();
tabs.SetupWithViewPager(null);
}
else
{
new TabLayoutMediator(tabs, _viewPager, _listeners)
.Attach();
UpdateTabIcons();
#pragma warning disable CS0618 // Type or member is obsolete
tabs.AddOnTabSelectedListener(_listeners);
#pragma warning restore CS0618 // Type or member is obsolete
}
UpdateIgnoreContainerAreas();
}
}
void OnChildrenCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
e.Apply((o, i, c) => SetupPage((Page)o), (o, i) => TeardownPage((Page)o), Reset);
if (IsBottomTabPlacement)
{
FormsViewPager pager = _viewPager;
BottomNavigationView bottomNavigationView = _bottomNavigationView;
((FormsFragmentPagerAdapter <Page>)pager.Adapter).CountOverride = Element.Children.Count;
pager.Adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
bottomNavigationView.Menu.Clear();
}
else
{
SetupBottomNavigationView(e);
bottomNavigationView.SetOnNavigationItemSelectedListener(this);
}
UpdateIgnoreContainerAreas();
}
else
{
FormsViewPager pager = _viewPager;
TabLayout tabs = _tabLayout;
((FormsFragmentPagerAdapter <Page>)pager.Adapter).CountOverride = Element.Children.Count;
pager.Adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
tabs.RemoveAllTabs();
tabs.SetupWithViewPager(null);
}
else
{
tabs.SetupWithViewPager(pager);
UpdateTabIcons();
#pragma warning disable CS0618 // Type or member is obsolete
tabs.AddOnTabSelectedListener(this);
#pragma warning restore CS0618 // Type or member is obsolete
}
UpdateIgnoreContainerAreas();
}
}
public override void OnDestroyView()
{
base.OnDestroyView();
Browse.instance = null;
FolderBrowse.instance = null;
YoutubeSearch.instances = null;
adapter?.Dispose();
TabLayout tabs = Activity.FindViewById<TabLayout>(Resource.Id.tabs);
tabs.RemoveAllTabs();
tabs.Visibility = ViewStates.Gone;
((AppBarLayout.LayoutParams)Activity.FindViewById<CollapsingToolbarLayout>(Resource.Id.collapsingToolbar).LayoutParameters).ScrollFlags = 0;
instance = null;
}
private void InitializeAdapter()
{
TabLayout tabLayout = FindViewById <TabLayout>(Resource.Id.tab_layout);
tabLayout.RemoveAllTabs();
tabLayout.AddTab(tabLayout.NewTab().SetText("My Networks"));
tabLayout.AddTab(tabLayout.NewTab().SetText("Information"));
tabLayout.TabGravity = TabLayout.GravityFill;
ViewPager viewPager = FindViewById <ViewPager>(Resource.Id.pager);
PagerAdapter adapter = new MainPagerAdapter(SupportFragmentManager, tabLayout.TabCount);
viewPager.Adapter = adapter;
viewPager.AddOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
tabLayout.TabSelected += delegate(object sender, TabLayout.TabSelectedEventArgs e)
{
viewPager.CurrentItem = e.Tab.Position;
};
}
void OnChildrenCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
FormsViewPager pager = _viewPager;
TabLayout tabs = _tabLayout;
((FormsFragmentPagerAdapter <Page>)pager.Adapter).CountOverride = Element.Children.Count;
pager.Adapter.NotifyDataSetChanged();
if (Element.Children.Count == 0)
{
tabs.RemoveAllTabs();
}
else
{
tabs.SetupWithViewPager(pager);
UpdateTabIcons();
tabs.TabSelected += _tabLayout_TabSelected;
}
UpdateIgnoreContainerAreas();
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
System.Console.WriteLine("&Pager view created");
View view = inflater.Inflate(Resource.Layout.ViewPager, container, false);
TabLayout tabs = Activity.FindViewById<TabLayout>(Resource.Id.tabs);
ViewPager pager = view.FindViewById<ViewPager>(Resource.Id.pager);
((AppBarLayout.LayoutParams)Activity.FindViewById<CollapsingToolbarLayout>(Resource.Id.collapsingToolbar).LayoutParameters).ScrollFlags = AppBarLayout.LayoutParams.ScrollFlagScroll | AppBarLayout.LayoutParams.ScrollFlagEnterAlways | AppBarLayout.LayoutParams.ScrollFlagSnap;
tabs.Visibility = ViewStates.Visible;
tabs.RemoveAllTabs();
if (type == 0)
{
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.songs)));
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.folders)));
adapter = new ViewPagerAdapter(ChildFragmentManager);
adapter.AddFragment(Browse.NewInstance(), Resources.GetString(Resource.String.songs));
adapter.AddFragment(FolderBrowse.NewInstance(), Resources.GetString(Resource.String.folders));
pager.Adapter = adapter;
pager.AddOnPageChangeListener(this);
pager.AddOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabs));
tabs.SetupWithViewPager(pager);
tabs.TabReselected += OnTabReselected;
pager.CurrentItem = pos;
tabs.TabMode = TabLayout.ModeFixed;
tabs.SetScrollPosition(pos, 0f, true);
}
else if (type == 1)
{
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.all)));
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.songs)));
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.playlists)));
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.lives)));
tabs.AddTab(tabs.NewTab().SetText(Resources.GetString(Resource.String.channels)));
ViewPagerAdapter adapter = new ViewPagerAdapter(ChildFragmentManager);
Fragment[] fragment = YoutubeSearch.NewInstances(query);
adapter.AddFragment(fragment[0], Resources.GetString(Resource.String.all));
adapter.AddFragment(fragment[1], Resources.GetString(Resource.String.songs));
adapter.AddFragment(fragment[2], Resources.GetString(Resource.String.playlists));
adapter.AddFragment(fragment[3], Resources.GetString(Resource.String.lives));
adapter.AddFragment(fragment[4], Resources.GetString(Resource.String.channels));
pager.Adapter = adapter;
pager.AddOnPageChangeListener(this);
pager.AddOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabs));
tabs.SetupWithViewPager(pager);
tabs.TabReselected += OnTabReselected;
pager.CurrentItem = pos;
tabs.TabMode = TabLayout.ModeScrollable;
tabs.SetScrollPosition(pos, 0f, true);
YoutubeSearch.instances[pos].IsFocused = true;
YoutubeSearch.instances[pos].OnFocus();
MainActivity.instance.FindViewById<TabLayout>(Resource.Id.tabs).Visibility = ViewStates.Visible;
IMenuItem searchItem = MainActivity.instance.menu.FindItem(Resource.Id.search);
SearchView searchView = (SearchView)searchItem.ActionView;
searchView.Focusable = false;
searchItem.ExpandActionView();
searchView.SetQuery(query, false);
searchView.ClearFocus();
searchView.Focusable = true;
}
return view;
}