private void ShowSearchView(ISearchableViewModel searchableViewModel)
{
MainActivity.TitleTextView.Visibility = ViewStates.Gone;
var searchView = MainActivity.SearchView;
searchView.Visibility = ViewStates.Visible;
searchView.QueryHint = searchableViewModel.PlaceholderText;
_searchTextChanged = searchableViewModel
.Changed(() => searchableViewModel.SearchText)
.Subscribe(searchText => searchView.SetQuery(searchText, false));
_searchViewQueryChanged = Observable.FromEventPattern <EventHandler <QueryTextChangeEventArgs>, QueryTextChangeEventArgs>(
e => searchView.QueryTextChange += e,
e => searchView.QueryTextChange -= e)
.Subscribe(ep => searchableViewModel.SearchText = ep.EventArgs.NewText);
searchableViewModel.SearchText = string.Empty;
searchView.RequestFocus();
InputMethodManager imm = (InputMethodManager)MainActivity.GetSystemService(Context.InputMethodService);
imm.ShowSoftInput(searchView, ShowFlags.Implicit);
}
public NavigationBarSearchTextField(CGRect cgRect, ISearchableViewModel viewModel) : base(cgRect)
{
ViewModel = viewModel;
_loadingActivatyIndacator = GetLocationsLoadActivityIndacator();
var backButton = GetBackButton();
LeftViewMode = UITextFieldViewMode.Always;
RightViewMode = UITextFieldViewMode.Always;
LeftView = backButton;
BorderStyle = UITextBorderStyle.None;
this.RoundCorners(UIRectCorner.AllCorners, 5);
BackgroundColor = UIColor.White;
ClearButtonMode = UITextFieldViewMode.WhileEditing;
MinimumFontSize = 12;
Font = UIFont.SystemFontOfSize(12, UIFontWeight.Regular);
Placeholder = ViewModel.PlaceholderText;
this.SetBinding(() => Text, () => ViewModel.SearchText, BindingMode.TwoWay);
this.SetBinding(() => IsLoading, () => ViewModel.IsSearching, BindingMode.TwoWay);
this.BindCommand(backButton, ViewModel.GoBack);
}
public static NavigationBarSearchTextField CreateSearchViewOnNavigationBar(this UIViewController viewController, ISearchableViewModel vm)
{
var navigationBar = ((UINavigationController)UIApplication.SharedApplication.KeyWindow.RootViewController).NavigationBar;
viewController.EdgesForExtendedLayout = UIRectEdge.None;
viewController.NavigationItem.HidesBackButton = true;
var frame = new CGRect(0, 0, navigationBar.Frame.Size.Width - 20, 40);
var searchTextField = new NavigationBarSearchTextField(frame, vm);
viewController.NavigationItem.TitleView = searchTextField;
searchTextField.BecomeFirstResponder();
return(searchTextField);
}