Troubleshooting WinRT Suspending Events in Debugging
Developing Windows Phone 8.1 apps using WinRT can present challenges, especially when the Suspending event fails to trigger during debugging sessions. This article provides a straightforward solution.
The root cause is simple: the debugger actively prevents app suspension. Therefore, even prolonged inactivity won't initiate the Suspending event.
To effectively test your app's suspended state behavior, utilize the Visual Studio Debug Location Toolbar to manually trigger the event.
- Access the Debug Location Toolbar. If it's hidden, navigate to View > Toolbars > Debug Location.
- Within the Lifecycle events dropdown menu, choose Suspend.
- To simulate the app resuming, select Resume from the same dropdown.
This manual invocation allows for comprehensive testing of your app's response to suspension without requiring you to repeatedly exit and relaunch the application.
Crucially, remember that the Suspending event will only fire naturally outside of a debugging session, when the app undergoes normal suspension.
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