![]() ![]() ![]() From the Start screen, go to Settings > Customize your lock screen.Accept the request to add the BackgroundTaskSample app to the lock screen.Īdd the BackgroundTaskSample app to the lock screen manually:.Launch the BackgroundTaskSample app for the first time.There are two ways to accomplish this.Īccept the initial request to add the BackgroundTaskSample app to the lock screen: Select a time zone that has a UTC offset different from the currently selected time zone.īackground tasks associated with the TimeTrigger event will only fire if the app is currently on the lock screen.To trigger the background tasks associated with the TimeZoneChange event: To run the sample without debugging, press Ctrl+F5 or select Debug > Start Without Debugging. To debug the sample and then run it, press F5 or select Debug > Start Debugging.Press Ctrl+Shift+B, or select Build > Build Solution.Double-click the Visual Studio Solution (.sln) file. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript).Start Microsoft Visual Studio and select File > Open > Project/Solution.If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.(XAML) Windows.UI.WebUI.WebUIBackgroundTaskInstance (HTML) Related technologies Related topics Samplesīackground Activation Traffic App sample Referenceĭisplaying tiles on the lock screen Launching, resuming, and multitasking Managing background tasks Support your app with background tasks Windows 8 app samples The samples in the Windows 8 app samples pack will build and run only on Microsoft Visual Studio 2012. Note For Windows 8 app samples, download the Windows 8 app samples pack. To obtain an evaluation copy of Microsoft Visual Studio 2013, go to Visual Studio 2013. To obtain an evaluation copy of Windows 8.1, go to Windows 8.1. Registering a background task in a Background Task Registration Group.Initializing background task progress and completion handlers when the app is launched.Handling the cancellation of a background task, and ensuring the task is cancelled when required conditions are no longer met.Using a deferral object to include asynchronous code in your background task.Reporting background task progress and completion to the app.Creating and signaling an application trigger.Adding a condition that constrains the background task to run only when the condition is in effect.Creating a background task that is triggered by a time trigger.Requesting the user's permission to add the app to the lock screen.Creating a background task that is triggered by a system event.Creating and registering background tasks written in C++, C#, or JavaScript.A background task can run even when the app that registered the background task is suspended. When a background task is triggered, its associated handler runs and performs the work of the background task. The samples collection, and GitHub, see Get the UWP samples from GitHub.įor more samples, see the Samples portal on the Windows Dev Center.Ī background task is triggered by a system or time event and can be constrained by one or more conditions. For more info on working with the ZIP file, Sure to unzip everything to access shared dependencies. Or you can download the entire collection as a single You can download this sample as a standalone ZIP file Note: This sample is part of a large collection of UWP feature samples. Shows how to create and register background tasks using the Windows Runtime background task API.
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