What is foreground in Android?

A foreground service performs some operation that is noticeable to the user . For example, an audio app would use a foreground service to play an audio track. Foreground services must display a Notification. Foreground services continue running even when the user isn’t interacting with the app.

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What is background and foreground?

A priority assigned to programs running in a multitasking environment. The foreground contains the applications the user is working on, and the background contains the applications that are behind the scenes , such as certain operating system functions, printing a document or accessing the network.

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