How to close a Windows Phone 8.1 app

c# xaml windows-runtime windows-phone windows-phone-8.1
v.g. picture v.g. · Sep 2, 2014 · Viewed 9.8k times · Source

In WP7 and WP8 I just needed to clear the backstack in a page, then press Back button and the app is closed. In WP8.1 I do Frame.BackStack.Clear(), press Back and the app just minimizes.. How to kill it with Back button?

Answer

the_nuts picture the_nuts · Sep 2, 2014

You can add, in your main page definition: 

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

Then 

private void HardwareButtons_BackPressed(object sender, Windows.Phone.UI.Input.BackPressedEventArgs e)
{
    if (!e.Handled && Frame.CurrentSourcePageType.FullName == "YourApp.MainPage")
        Application.Current.Exit();
}

Warning: As others said, you should not use this and let the system handle the app closure. For example, if you use the Application Insights, I found that they are not sent to Azure when in Release mode

Related questions

Programmatically set the Source of an Image (XAML)

I am working on a Windows 8 app. I need to know how to programmatically set the Source of an Image. I assumed that the Silverlight approach would work. However, it doesn't. Does anybody know how to do this? The following …

Read More
How to get the resolution of screen? For a WinRT app?

I want to know the screen resolution so that I can set the height of an element according to the resolution in a Windows 8 app.

Read More
Mysterious "Not enough quota is available to process this command" in WinRT port of DataGrid

Edit Sept 26 See below for the full background. tl;dr: A data grid control is causing odd exceptions, and I am looking for help isolating the cause and finding a solution. I've narrowed this down a bit further. I have …

Read More