Security considerations for Permission best practices?

When developing Android applications, securing user data and ensuring proper permission management is vital. Here are some best practices for handling permissions effectively:

  • Request Permissions at Runtime: Starting from Android 6.0 (API level 23), you must request permissions at runtime rather than just declaring them in the manifest.
  • Use the Least Privilege Principle: Only request permissions that are necessary for your app's core functionality.
  • Explain Permission Requests: Provide a clear explanation to users about why certain permissions are needed, ideally in an in-app dialog prior to the permission request.
  • Check Permissions Before Use: Always check if the permissions are granted before attempting to access resources protected by them.
  • Handle Permission Denials Gracefully: Be prepared for scenarios where users deny permission and ensure your app can still function correctly without it.

Example of Runtime Permission Request

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
            != PackageManager.PERMISSION_GRANTED) {
        // Permission is not granted, show an explanation dialog
        if (ActivityCompat.shouldShowRequestPermissionRationale(this,
                Manifest.permission.CAMERA)) {
            // Show an explanation to the user asynchronously
        } else {
            // No explanation needed; request the permission
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.CAMERA},
                    MY_PERMISSIONS_REQUEST_CAMERA);
        }
    } else {
        // Permission has already been granted, proceed with accessing the camera
    }

Android Security Permissions Best Practices Runtime Permission User Data Protection