What would you use to handle permissions in a modern Android application?

In modern Android applications, managing permissions effectively is crucial, especially with the change in how permissions are handled since Android 6.0 (API level 23). The correct mechanism for checking whether an app has been granted a certain permission at runtime is through the ActivityCompat.checkSelfPermission() method.

This method allows you to check if specific permissions have been granted to your application and is part of the support library, which provides backward compatibility to older Android versions. When using this method, it returns a constant indicating whether the permission has been granted or not, enabling developers to conditionally request permissions or perform actions based on the results.

By utilizing ActivityCompat.checkSelfPermission(), developers can ensure that their applications comply with the system's security model while maintaining a consistent user experience across different Android versions. This is especially important because, starting from Android 6.0, users can revoke permissions even after they have been granted, which necessitates a robust runtime checks approach.

The other options either reference incorrect methods or do not exist in the context of permission handling in Android applications. For permission requests, developers typically pair checkSelfPermission() with ActivityCompat.requestPermissions() to handle the asynchronous request for permissions, making option B the logical choice for