//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;
}
}