Ask Permissions before use in-built features in iOS

Question

I am using camera, microPhone and current location in my iOS App like SOS Button functionality. Its working fine but when I press this button first time its asking permissions for using these in-built features. How to ask permissions before using this SOS Button first time.

Answer 1

you can check in app delegate when app is launch so your permission is granted.

let mediatype = AVMediaType.video
let AuthoriseStatus = AVCaptureDevice.authorizationStatus(for: cameraMediaType)

switch AuthoriseStatus {
case .denied: break
case .authorized: break
case .restricted: break

case .notDetermined:
    // permission prompt
    AVCaptureDevice.requestAccess(for: mediatype) { granted in
        if granted {
            print("Granted access to \(mediatype)")
        } else {
            print("Denied access to \(mediatype)")
        }
    }
}