public void OnTabSelected(ActionBar.Tab tab, FragmentTransaction ft) { if (_cleared) { return; } var bar = (ActionBar)tab.GetBindingMemberValue(AttachedMembers.Object.Parent); var placeHolder = ActionBarView.GetTabContentId(bar); var activity = bar.ThemedContext.GetActivity(); SetContent(tab, ft, placeHolder, activity, bar); //Set selected item data context or tab var selectedItem = bar.GetBindingMemberValue(ItemsSourceGeneratorBase.MemberDescriptor) == null ? tab : tab.DataContext(); #if APPCOMPAT bar.SetBindingMemberValue(AttachedMembersCompat.ActionBar.SelectedItem, selectedItem); #else bar.SetBindingMemberValue(AttachedMembers.ActionBar.SelectedItem, selectedItem); #endif }
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 = PlatformExtensions.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)); } }