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2015元旦第一弹——WP8.1应用程序栏(C#后台代码编写)
//第一次写博文,以后还请各位道友互相关照哈。废话不多说,直接进入正题。
相信大家对于如何在XAML添加应用程序栏应该很清楚,不清楚的话,可以打开新建个Pviot应用 就有系统自带的菜单栏。 本文主要讲的是如何在C#后台进行动态添加应用程序栏以及菜单栏最小化。
首先新建一个空白应用,然后在Gird下键入以下代码:
<Pivot Name="pivot" SelectionChanged="Pivot_SelectChanged"> <PivotItem Header="First"> </PivotItem> <PivotItem Header="Second"> </PivotItem> <PivotItem Header="Third"> </PivotItem> </Pivot>
然后在MainPage.xaml.cs定义3个菜单:
CommandBar refresh; CommandBar add; CommandBar min;
之后,我们定一个方法PrepareAppBars()来实现应用程序栏,这个方法要在OnNavigatedTo()或者构造函数内或者页面加载内实现,这里我选择在OnNavigatedTo()内实现:
protected override void OnNavigatedTo(NavigationEventArgs e) { // TODO: Prepare page for display here. PrepareAppBars(); // TODO: If your application contains multiple pages, ensure that you are // handling the hardware Back button by registering for the // Windows.Phone.UI.Input.HardwareButtons.BackPressed event. // If you are using the NavigationHelper provided by some templates, // this event is handled for you. }
private void PrepareAppBars() { //Pivot第一个页面菜单栏 refresh = new CommandBar(); refresh.IsOpen = true; AppBarButton RefreshBtn = new AppBarButton() { Icon = new BitmapIcon() { UriSource = new Uri("ms-appx:///Assets/refresh.png") } }; RefreshBtn.Label = "刷新"; RefreshBtn.Click += RefreshBtn_Click; RefreshBtn.IsEnabled = true; // 相似的第二个菜单 AppBarButton SecondBtn = new AppBarButton() { Icon = new BitmapIcon() { UriSource = new Uri("ms-appx:///Assets/add.png") } }; SecondBtn.Label = "添加"; SecondBtn.Click += SecondBtn_Click; SecondBtn.IsEnabled = true; AppBarButton secondCommand = new AppBarButton(); secondCommand.Label = "菜单一"; secondCommand.Click += secondCommand_Click; AppBarButton secondCommand2 = new AppBarButton(); secondCommand2.Label = "菜单二"; secondCommand2.Click += secondCommand2_Click; refresh.SecondaryCommands.Add(secondCommand); refresh.SecondaryCommands.Add(secondCommand2); refresh.PrimaryCommands.Add(RefreshBtn); refresh.PrimaryCommands.Add(SecondBtn); //Pivot第二个页面菜单栏 add = new CommandBar(); add.IsOpen = true; AppBarButton Pivot_SecondAppBar = new AppBarButton() { Icon = new BitmapIcon() { UriSource = new Uri("ms-appx:///Assets/add.png") } }; Pivot_SecondAppBar.Label = "添加"; Pivot_SecondAppBar.Click += Pivot_SecondAppBar_Click; SecondBtn.IsEnabled = true; add.PrimaryCommands.Add(Pivot_SecondAppBar); //Pivot第三个页面菜单栏最小化 min = new CommandBar(); AppBarButton thirdCommand = new AppBarButton(); thirdCommand.Label = "菜单三"; thirdCommand.Click += thirdCommand_Click; min.SecondaryCommands.Add(thirdCommand); min.ClosedDisplayMode = AppBarClosedDisplayMode.Minimal; }
接着,我们定义 应用程序栏的所有单机事件:
void thirdCommand_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("菜单三"); msg.ShowAsync(); } void Pivot_SecondAppBar_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("Pivot第二个页面添加"); msg.ShowAsync(); } void SecondBtn_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("添加"); msg.ShowAsync(); } void secondCommand2_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("菜单二"); msg.ShowAsync(); } void secondCommand_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("菜单一"); msg.ShowAsync(); } void RefreshBtn_Click(object sender, RoutedEventArgs e) { MessageDialog msg = new MessageDialog("刷新"); msg.ShowAsync(); }
做完这些之后呢,我们就可以在Pivot_SelectChanged页面选择的时候加载指定的应用程序栏了:
private void Pivot_SelectChanged(object sender, SelectionChangedEventArgs e) { switch (pivot.SelectedIndex) { case 0: BottomAppBar = refresh; break; case 1: BottomAppBar = add; break; case 2: BottomAppBar = min; break; } }
2015元旦第一弹——WP8.1应用程序栏(C#后台代码编写)
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