isSystemUser UserManager android

In the context of Android development, `isSystemUser` and `UserManager` are related to managing user accounts and permissions, particularly on devices with multiple users (like a device running Android for Work or when using profiles).

`isSystemUser()` is a method typically found in the `UserManager` class, which is part of the Android Management API (Android Management API was previously known as Device Policy Manager, but it's now more focused on enterprise management). This method checks whether the current user is a system user, meaning they have elevated privileges, often used by apps that need to interact with the device at a higher level.

The `UserManager` class provides methods for querying information about users, creating, updating, and deleting profiles, and checking if certain operations can be performed by a specific user. To use this in your app, you would typically do something like:

import android.app.admin.UserManager;

// ...

UserManager userManager = UserManager.get(this);
boolean isSystemUser = userManager.isSystemUser();

if (isSystemUser) {
    // Perform actions allowed only for system users
} else {
    // Perform actions for regular users
}