In this codelab you'll be working on Blur-O-Matic, an app that blurs photos and images and saves the result to a file. Gone are the days a photographer could take a reliably blurry picture of something mysterious. These days, smartphones are almost too good at taking pictures. For more details about when to use WorkManager, check out the Guide to background processing. As such, it is not a catch-all for running every task off of the main thread. WorkManager offers guaranteed execution, and not all tasks require that.
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WorkManager is part of Android Jetpack and an Architecture Component for background work that needs a combination of opportunistic and guaranteed execution. WorkManager is the recommended task scheduler on Android for deferrable work, with a guarantee to be executed. This codelab covers WorkManager, a compatible, flexible and simple library for deferrable background work. There are many options on Android for deferrable background work.