I am using a UIImagePicker
to present the users with camera to take photos which will be used in the app.
My problem is that on the first time a user opens the image picker they are presented with a prompt saying: '"my App" Would like to Access your Camera' with two options, Don't allow and OK.
My requirement is that when the user clicks Don't Allow, the Image picker gets dismissed leaving a black view. Is there a way to detect that the user has chosen Don't allow?
Here is my code to present UIImagePicker
:
var PhotoPicker:UIImagePickerController = UIImagePickerController()
PhotoPicker.delegate = self
PhotoPicker.sourceType = .Camera
PhotoPicker.cameraFlashMode = .Off
PhotoPicker.showsCameraControls = false
PhotoPicker.cameraDevice = .Rear
self.presentViewController(PhotoPicker, animated: false, completion: nil)
To detect access to your library:
You need to use AssetsLibrary for that. First, import assets library framework:
import AssetsLibrary
Then, request authorization status, and if it is not determined, use blocks to catch those events, like this:
if ALAssetsLibrary.authorizationStatus() == ALAuthorizationStatus.NotDetermined {
let library = ALAssetsLibrary()
library.enumerateGroupsWithTypes(.All, usingBlock: { (group, stop) -> Void in
// User clicked ok
}, failureBlock: { (error) -> Void in
// User clicked don't allow
imagePickerController.dismissViewControllerAnimated(true, completion: nil)
})
}
To detect access to camera:
You need to use AVFoundation for that. First, import avfoundation framework:
import AVFoundation
Then, as previously, request user permission when you go to imagepicker and catch the event.
if AVCaptureDevice.authorizationStatusForMediaType(AVMediaTypeVideo) == AVAuthorizationStatus.NotDetermined {
AVCaptureDevice.requestAccessForMediaType(AVMediaTypeVideo, completionHandler: { (videoGranted: Bool) -> Void in
// User clicked ok
if (videoGranted) {
// User clicked don't allow
} else {
imagePickerController.dismissViewControllerAnimated(true, completion: nil)
}
})
}
Hope it helps!
In iOS 10, use:
import Photos
let authStatus = PHPhotoLibrary.authorizationStatus()
if authStatus == .notDetermined || authStatus == .denied {
PHPhotoLibrary.requestAuthorization({ (status) in
if status == PHAuthorizationStatus.authorized {
} else {
imagePickerController.dismissViewControllerAnimated(true, completion: nil)
}
})
}
Check out this for detecting camera permission
Presenting camera permission dialog in iOS 8
Use this when user picks Don't Allow.
PhotoPicker.dismissViewControllerAnimated(false, completion: nil)