コード例 #1
0
 public TodoItemPage()
 {
     ToolbarItems.Add(new ToolbarItem("Change Language", null, async() =>
     {
         var page = new LanguageSelectionXaml();
         await Navigation.PushAsync(page);
     }, 0, 0));
 }
コード例 #2
0
        public TodoListPage()
        {
            listView = new ListView {
                RowHeight = 40
            };
            listView.ItemTemplate = new DataTemplate(typeof(TodoItemCell));

            listView.ItemSelected += (sender, e) => {
                var todoItem = (TodoItem)e.SelectedItem;

                // use C# localization
                var todoPage = new TodoItemPage();

                // use XAML localization
//				var todoPage = new TodoItemXaml();


                todoPage.BindingContext = todoItem;
                Navigation.PushAsync(todoPage);
            };

            var layout = new StackLayout();

            if (Device.OS == TargetPlatform.WinPhone)               // WinPhone doesn't have the title showing
            {
                layout.Children.Add(new Label {
                    Text = "Todo", Font = Font.BoldSystemFontOfSize(NamedSize.Large)
                });
            }
            layout.Children.Add(listView);
            layout.VerticalOptions = LayoutOptions.FillAndExpand;
            Content = layout;


            ToolbarItem tbi = null;

            if (Device.OS == TargetPlatform.iOS)
            {
                tbi = new ToolbarItem("+", null, () =>
                {
                    var todoItem            = new TodoItem();
                    var todoPage            = new TodoItemPage();
                    todoPage.BindingContext = todoItem;
                    Navigation.PushAsync(todoPage);
                }, 0, 0);
            }
            if (Device.OS == TargetPlatform.Android)               // BUG: Android doesn't support the icon being null
            {
                tbi = new ToolbarItem("+", "plus", () => {
                    var todoItem            = new TodoItem();
                    var todoPage            = new TodoItemPage();
                    todoPage.BindingContext = todoItem;
                    Navigation.PushAsync(todoPage);
                }, 0, 0);
            }
            if (Device.OS == TargetPlatform.WinPhone)
            {
                tbi = new ToolbarItem("Add", "add.png", () =>
                {
                    var todoItem            = new TodoItem();
                    var todoPage            = new TodoItemPage();
                    todoPage.BindingContext = todoItem;
                    Navigation.PushAsync(todoPage);
                }, 0, 0);
            }

            ToolbarItems.Add(tbi);

            if (Device.OS == TargetPlatform.iOS)
            {
                var tbi2 = new ToolbarItem("?", null, () => {
                    var todos   = App.Database.GetItemsNotDone();
                    var tospeak = "";
                    foreach (var t in todos)
                    {
                        tospeak += t.Name + " ";
                    }
                    if (tospeak == "")
                    {
                        tospeak = "there are no tasks to do";
                    }

                    if (todos.Count() > 0)
                    {
                        var s   = L10n.Localize("SpeakTaskCount", "Number of tasks to do");
                        tospeak = String.Format(s, todos.Count()) + tospeak;
                    }

                    DependencyService.Get <ITextToSpeech>().Speak(tospeak);
                }, 0, 0);
                ToolbarItems.Add(tbi2);
            }

            ToolbarItems.Add(new ToolbarItem("Change Language", null, async() => {
                var page = new LanguageSelectionXaml();
                await Navigation.PushAsync(page);
            }, 0, 0));
        }