[UWP]后退按键不在Windows Phone 10中触发 [英] [UWP]Back Key press is not trigger in windows phone 10

问题描述

我用prism框架创建了通用Windows应用程序。我有5页，其中2页将调用4页。但是当我按下第2页上的键（硬件密钥窗口）时，它应该转到第3页。它在平板电脑上工作正常。但不是在Windows Phone 10中。

i have created Universal Windows app with prism framework. I have 5 pages in which 2 page will call 4 page. But when i press back key on page 2 (HardWare key windows) it should go to page 3. It is working fine in tablet. But not in windows Phone 10.

用xaml.cs编写的代码：

Code written in xaml.cs :

OnNavigate我有注册BackRequest

OnNavigate i have register BackRequest

" SystemNavigationManager.GetForCurrentView（）。BackRequested + = Manage_BackRequest; " &

"SystemNavigationManager.GetForCurrentView().BackRequested += Manage_BackRequest;" &

注册OnNavigationFrom

de register OnNavigationFrom

" SystemNavigationManager.GetForCurrentView（）。BackRequested - = Manage_BackRequest; "

"SystemNavigationManager.GetForCurrentView().BackRequested -= Manage_BackRequest;"

在平板电脑中，当按下后退键时，按 Manage_BackRequest 方法触发&他们我正在浏览各自的页面。但在Windows Phone 10中，事件不是触发器&它导航后页。 

In tablet when back key is press Manage_BackRequest method is trigger & their i am navigating to respective page. But in Windows Phone 10 the event is not trigger & it navigates the back page. 

他们是否需要处理Windows Phone 10中的反键按键事件。

Is their any other action required to handle backkey press event in Windows Phone 10.

请帮忙解决问题。

推荐答案

您好，

我无法在Windows 10 Mobile - 1511和1607版本上重现您的问题。你能提供更多信息吗？但是随时代码将始终有效。

I can not reproduce your issue on both Windows 10 Mobile - 1511 and 1607 versions. Can you provide more information? But anytime following code will always work.

 Windows.Phone.UI.Input.HardwareButtons.BackPressed += HardwareButtons_BackPressed;

但是您应该为您的项目添加移动扩展程序 

but you should add Mobile extensions to your project 

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