WP8.1后退按钮退出应用程序 [英] WP8.1 back button quits the app

问题描述

我上一次针对Windows Phone开发的是版本8.现在，我使用的是8.1.也许这是MS的一项新功能，但是当我按下手机上的后退"按钮时，无论我对应用程序有多深入，应用程序都会最小化.这真烦人！有什么我可以做的吗?

The last time I developed against Windows Phone, it was with version 8. Now I'm making use of 8.1. Maybe this is a new feature from MS, but when I press the back button on the phone, regardless of how deep I'm into the app, the app minimizes. This is seriously annoying! Is there anything that I can do?

非常感谢！

推荐答案

是的，这是Windows Phne 8.1非SL应用程序中的正常行为. 以下是在您的App.xaml.cs文件中实现的解决方法:

Yes, this is the normal behaviour in Windows Phne 8.1 non-SL apps. Here a workaround to implement in your App.xaml.cs file:

public App()
{
    this.InitializeComponent();   
    HardwareButtons.BackPressed += HardwareButtons_BackPressed;        
}

void HardwareButtons_BackPressed(object sender, BackPressedEventArgs e)
{
    Frame rootFrame = Window.Current.Content as Frame;

    if (rootFrame != null && rootFrame.CanGoBack)
    {
        e.Handled = true;
        rootFrame.GoBack();
    }
}

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