CODEWITHSUNDEEP
swiftswift2
Jiatan Li
Jiatan Li

Reputation: 161

AVCaptureDevice.requestAccessForMediaType never pops up window and always return false

I have some problem asking user for permission about camera. The authorizationStatus is always NotDetermined. When I tried to ask user for permission, AVCaptureDevice.requestAccessForMediaType never pops up a dialog and granted always returns false. I also can't find my app in settings - privacy - camera.

Can anyone help me with that? really appreciated

let availableCameraDevices = AVCaptureDevice.devicesWithMediaType(AVMediaTypeVideo)
    for device in availableCameraDevices{

        if (device.position == .Back){
            backCameraDevice = device
        }else{
            if (device.position == .Front){
                frontCameraDevice = device
            }
        }
    }

    let authorizationStatus = AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeVideo)
    switch authorizationStatus {
    case .NotDetermined:
        // permission dialog not yet presented, request authorization
        AVCaptureDevice.requestAccessForMediaType(AVMediaTypeVideo,
            completionHandler: { (granted:Bool) -> Void in
                if (granted == false) {
                    print(granted)
                }
                else {
                    print(granted)
                }
        })
    case .Authorized: break
        // go ahead
    case .Denied, .Restricted: break
        // the user explicitly denied camera usage or is not allowed to access the camera devices
    }

Upvotes: 7

Views: 4570

Answers (4)

Itachi
Itachi

Reputation: 6070

This happens to me after disabling the macOS SIP in recovery mode, enabling it back and all the authorize dialogs show up.

Upvotes: 0

Ahtazaz
Ahtazaz

Reputation: 885

If it's taking a long time to appear, then it sounds like you're not running this on the main thread, which you should be. Also, if it has prompted once before, it won't prompt again – the user has to go into Settings and enable camera access.

from ALex requestAccessForMediaType doesn't ask for permission

Upvotes: 1

Jiatan Li
Jiatan Li

Reputation: 161

Problem solved. It seems that when we upgrade from iOS 8 to iOS 9, it has a new property in info.plist which is Bundle Display Name. Set the name to your product name if it is null, or the system will never know what app is asking for a permission

Upvotes: 9

Gordon Childs
Gordon Childs

Reputation: 36074

You should always be able to present the permission dialog when authorization status is .NotDetermined.

This and the fact that you can't find the app in privacy settings makes it sound like your phone is confused - so try resetting your privacy settings by going to Settings.app > General > Reset and hitting Reset Location & Privacy.

Upvotes: 0

Related Questions