How does the WorkManager class work and what is its purpose in Android development?

WorkManager is an Android Jetpack component designed to manage deferred and guaranteed background tasks that should execute even if the app is closed or the device is restarted. It automatically selects the optimal way to perform the task (e.g., via JobScheduler, AlarmManager, or a custom mechanism), considering the Android version and device state.

The purpose of WorkManager is to simplify the execution of reliable background work with the ability to set conditions (e.g., Wi-Fi connection, device charging) and ensure task completion even if the app or device restarts.

Example usage:

val workRequest = OneTimeWorkRequestBuilder<MyWorker>()
    .setConstraints(
        Constraints.Builder()
            .setRequiredNetworkType(NetworkType.CONNECTED)
            .build()
    )
    .build()

WorkManager.getInstance(context).enqueue(workRequest)

Here, MyWorker is a class inheriting from Worker, where the background task logic is described.