UWP 检查当前页面的名称或实例 [英] UWP check the current page for name or instance

问题描述

在我的 UWP 应用中，我从协议或 Toast 启动.在 onactivated 方法中，我想检查应用程序的主视图是否打开或显示的是哪个页面.全部来自 App.xaml.cs

In my UWP app I am launching from protocol or toast. In the onactivated method I want to check whether the apps' mainview is open or which page it is showing. All from the App.xaml.cs

我想做类似的事情:

If Mainpage is not showing --> Navigate(typeof(MainPage));

或

If main window is not open since i am coming from protocol or toast launch
open frame and navigate to mainpage.

不知道如何去做.

推荐答案

所以我正在检查

var frame = Window.Current.Content as Frame;

if (frame != null)
{
    Type whatpageisit = frame.SourcePageType;
    // handle this page type
}
else
{
    // do what you need to in case window not open
}

这篇关于UWP 检查当前页面的名称或实例的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！