private void SetIndicator(TabHost.TabSpec tabSpec, object item)
{
(item as IViewModel)?.Settings.Metadata.AddOrUpdate(ViewModelConstants.StateNotNeeded, true);
var templateId = _itemTemplateProvider.GetTemplateId();
var selector = _itemTemplateProvider.GetDataTemplateSelector();
if (templateId == null && selector == null)
{
selector = EmptyTemplateSelector.Instance;
}
object content = AndroidToolkitExtensions.GetContentView(TabHost, TabHost.Context, item, templateId, selector);
if (content == EmptyTemplateSelector.EmptyView)
{
content = null;
if (item is IHasDisplayName)
{
BindingServiceProvider.BindingProvider.CreateBindingsFromString(tabSpec, "Title DisplayName", null);
}
else
{
tabSpec.SetIndicator(item.ToStringSafe("(null)"));
}
}
var view = content as View;
if (view == null)
{
tabSpec.SetIndicator(content.ToStringSafe("(null)"));
}
else
{
tabSpec.SetIndicator(view);
}
}
private object GetContent(object item)
{
return(AndroidToolkitExtensions.GetContentView(TabHost, TabHost.Context,
item, _contentTemplateProvider.GetTemplateId(), _contentTemplateProvider.GetDataTemplateSelector()));
}
protected virtual Object InstantiateItemInternal(ViewGroup container, object item)
{
return((Object)AndroidToolkitExtensions
.GetContentView(container, container.Context, item, _itemTemplateProvider.GetTemplateId(), _itemTemplateProvider.GetDataTemplateSelector()));
}
private void SetContent(ActionBar.Tab tab, FragmentTransaction ft, int?placeHolder, Activity activity, ActionBar bar)
{
if (placeHolder == null)
{
Tracer.Error("The placeholder for tab {0} was not found.", tab);
return;
}
var layout = activity.FindViewById <ViewGroup>(placeHolder.Value);
if (layout == null)
{
Tracer.Warn("The ActionBarTabContentId with id = {0} is not found in activity {1}",
placeHolder.Value,
activity);
return;
}
if (_content == null)
{
#if APPCOMPAT
_content = tab.GetBindingMemberValue(AttachedMembersCompat.ActionBarTab.Content);
#else
_content = tab.GetBindingMemberValue(AttachedMembers.ActionBarTab.Content);
#endif
var viewModel = _content as IViewModel;
if (viewModel == null)
{
var fragmentClass = _content as string;
//If content is a string, trying to create a fragment.
if (!string.IsNullOrEmpty(fragmentClass))
{
var type = TypeCache <Fragment> .Instance.GetTypeByName(fragmentClass, true, false);
if (type != null)
{
var fragment = Fragment.Instantiate(bar.ThemedContext, Java.Lang.Class.FromType(type).Name);
_content = fragment;
}
}
else if (_content is int)
{
_content = activity.GetBindableLayoutInflater().Inflate((int)_content, null);
}
}
else
{
viewModel.Settings.Metadata.AddOrUpdate(ViewModelConstants.StateNotNeeded, true);
}
_content = AndroidToolkitExtensions.GetContentView(layout, layout.Context, _content,
_contentTemplateProvider.GetTemplateId(), _contentTemplateProvider.GetDataTemplateSelector());
if (BindingServiceProvider.BindingManager.GetBindings(tab, AttachedMembers.Object.DataContext).Any())
{
_content.SetBindingMemberValue(AttachedMembers.Object.Parent, tab);
}
layout.SetContentView(_content, ft, (@group, fragment, arg3) =>
{
if (fragment.IsDetached)
{
arg3.Attach(fragment);
}
else
{
arg3.Replace(@group.Id, fragment);
}
});
}
else
{
layout.SetContentView(_content, ft, (@group, fragment, arg3) => arg3.Attach(fragment));
}
}