private void Tabs_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
switch (e.Action)
{
case System.Collections.Specialized.NotifyCollectionChangedAction.Add:
var tab = e.NewItems[0] as TabBarTab;
var androidTab = ActionBar.NewTab();
if (!string.IsNullOrEmpty(tab.Title))
{
androidTab.SetText(" " + tab.Title);
}
if (tab.Icon != null)
{
if (tab.Icon.ImageLoadStatus == Media.ImageStatus.Loaded)
{
androidTab.SetIcon(new BitmapDrawable(tab.Icon.GetBitmap()));
}
else
{
tab.Icon.ImageOpened += (s, ea) => androidTab.SetIcon(new BitmapDrawable(tab.Icon.GetBitmap()));
}
}
androidTab.TabSelected += TabSelected;
this.ActionBar.AddTab(androidTab, e.NewStartingIndex);
if (this.pagerPage == null)
{
this.pagerPage = new ViewPagerPage()
{
FragmentManager = this.FragmentManager
};
this.visualRoot.Child = pagerPage;
}
var page = this.InstantiatePage(tab.PageType);
page.NavigationService = this.navigationService;
this.pagerPage.AddPage(page, tab.NavigationParameter);
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Remove:
break;
case System.Collections.Specialized.NotifyCollectionChangedAction.Replace:
break;
default:
throw new InvalidEnumArgumentException();
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
if (this.pagerPage == null)
{
this.pagerPage = new ViewPagerPage()
{
FragmentManager = this.FragmentManager
};
this.visualRoot.Child = pagerPage;
}
// this will start Navigation to first tab
this.ActionBar.NavigationMode = ActionBarNavigationMode.Tabs;
var styledAttributes = this.Theme.ObtainStyledAttributes(new int[] { Android.Resource.Attribute.ActionBarSize, Android.Resource.Attribute.ActionBarStyle });
var mActionBarSize = (int)styledAttributes.GetDimension(0, 0);
var actionbarStyleId = styledAttributes.GetResourceId(1, 0);
styledAttributes.Recycle();
styledAttributes = this.Theme.ObtainStyledAttributes(actionbarStyleId, new int[] { Android.Resource.Attribute.BackgroundStacked });
var tabsBackground = styledAttributes.GetDrawable(0);
styledAttributes.Recycle();
rootLayout = new RootLayout(this);
this.rootLayout.SetBackgroundDrawable(tabsBackground);
rootLayout.SetPadding(0, mActionBarSize, 0, 0);
this.Window.DecorView.RootView.ViewTreeObserver.AddOnGlobalLayoutListener(this);
frameLayout = new FrameLayout(this);
frameLayout.Id = this.fragmentPageFrameLayoutResourceId;
frameLayout.Visibility = ViewStates.Gone;
rootLayout.SizeChanged += (s, e) => UpdateRootLayouts();
this.pagerPage.ViewPager.LayoutChange += ViewPagerLayotChange;
this.pagerPage.ViewPager.PageSelected += Pager_PageSelected;
rootLayout.AddView(this.pagerPage.ViewPager, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent));
rootLayout.AddView(frameLayout, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent));
this.SetContentView(rootLayout, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.MatchParent));
}
