我是一个xamarin表格prism应用程序,我有3个标签,标签栏仅在该特定页面上有效,如果我在特定标签内深入导航,则底部标签消失。即使我们导航到这些标签内的其他页面,有没有办法让底部标签保持活动状态?
我尝试做this之类的事情,但我无法在棱镜中做到这一点。
如果没有棱镜,它就像上面的链接一样非常直接,但我不会用棱镜来做。任何人都可以建议我如何实现它?
我的代码: 的 App.Xaml.cs
protected override async void OnInitialized()
{
InitializeComponent();
await NavigationService.NavigateAsync("NavigationPage/MainPage");
}
MainPage.XML
<?xml version="1.0" encoding="UTF-8"?>
< TabbedPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core"
xmlns:android="clr-namespace:Xamarin.Forms.PlatformConfiguration.AndroidSpecific;assembly=Xamarin.Forms.Core"
xmlns:windows="clr-namespace:Xamarin.Forms.PlatformConfiguration.WindowsSpecific;assembly=Xamarin.Forms.Core"
xmlns:local="clr-namespace:MyTabs.Common.Views"
x:Class="MyTabs.Common.Views.MainPage" BackgroundColor="Olive" BarBackgroundColor="Maroon">
<TabbedPage.Children>
<local:PageOne Title="PageOne"
Icon="PageOne.png" />
<local:PageTwo Title="PageTwo"
Icon="PageTwo.png" />
<NavigationPage Title="PageThree" Icon="PageThree s.png">
<x:Arguments>
<local: PageThree/>
</x:Arguments>
</NavigationPage>
<local:PageFour Title="PageFour"
Icon="PageFour.png" />
</TabbedPage.Children>
</TabbedPage>
PageThreeViewModel:
public class PageThreeViewModel : ViewModelBase
{
private ICommand pageFiveCommand;
public ICommand PageFiveCommand { get { return pageFiveCommand; } }
private void OnCloseCommand()
{
_navigationService.GoBackAsync();
}
public PageThreeCommand ViewModel()
{
pageFiveCommand = new DelegateCommand(OnPageFiveCommand);
}
private async void OnPageFiveCommand()
{
//await _navigationService.NavigateAsync(?NavigationPage/PageFive");
await _navigationService.NavigateAsync("GiftCardPage");
}
}
答案 0 :(得分:1)
您可以使用ContentPage
将TabbedPage
包裹在NavigationPage
内来实现此目的。
代码 :
<TabbedPage>
<TabbedPage.Children>
<NavigationPage Title="Home" Icon="home.png">
<x:Arguments>
<ContentPage>
//Your ContentPage here
//You can have a ViewModel for this ContentPage and Navigate inside that and will still have the Tabbed Page outside.
</ContentPage>
</x:Arguments>
</NavigationPage>
</TabbedPage.Children>
</TabbedPage>