added support for MediaLibrary.

PermissionScope-example/Info.plist

@@ -46,6 +46,8 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
+	<key>NSAppleMusicUsageDescription</key>
+	<string>Explanation why you need the media library</string>
 	<key>UISupportedInterfaceOrientations~ipad</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>

PermissionScope/Constants.swift

@@ -27,5 +27,6 @@ enum Constants {
     struct InfoPlistKeys {
         static let locationWhenInUse             = "NSLocationWhenInUseUsageDescription"
         static let locationAlways                = "NSLocationAlwaysUsageDescription"
+        static let mediaLibrary                  = "NSAppleMusicUsageDescription"
     } 
 }

PermissionScope/PermissionScope.swift

@@ -15,6 +15,7 @@ import EventKit
 import CoreBluetooth
 import CoreMotion
 import Contacts
+import MediaPlayer
 
 public typealias statusRequestClosure = (_ status: PermissionStatus) -> Void
 public typealias authClosureType      = (_ finished: Bool, _ results: [PermissionResult]) -> Void
@@ -987,6 +988,47 @@ typealias resultsForConfigClosure     = ([PermissionResult]) -> Void
 
     /// Returns whether PermissionScope is waiting for the user to enable/disable motion access or not.
     fileprivate var waitingForMotion = false
+
+    // MARK: MediaLibrary
+
+    /**
+     Returns the current permission status for accessing the MediaLibrary.
+
+     - returns: Permission status for the requested type.
+     */
+    public func statusMediaLibrary() -> PermissionStatus {
+        guard #available(iOS 9.3, *) else { fatalError() }
+        let status = MPMediaLibrary.authorizationStatus()
+        switch status {
+        case .authorized:
+            return .authorized
+        case .restricted, .denied:
+            return .unauthorized
+        case .notDetermined:
+            return .unknown
+        }
+    }
+
+    /**
+     Requests access to the MediaLibrary, if necessary.
+     */
+    public func requestMediaLibrary() {
+        guard #available(iOS 9.3, *) else { fatalError() }
+        let status = statusMediaLibrary()
+        switch status {
+        case .unknown:
+            let hasWhenInUseKey :Bool = !Bundle.main
+                .object(forInfoDictionaryKey: Constants.InfoPlistKeys.mediaLibrary).isNil
+            assert(hasWhenInUseKey, Constants.InfoPlistKeys.mediaLibrary + " not found in Info.plist.")
+            MPMediaLibrary.requestAuthorization { _ in
+                self.detectAndCallback()
+            }
+        case .unauthorized:
+            self.showDeniedAlert(.mediaLibrary)
+        default:
+            break
+        }
+    }
 
     // MARK: - UI
 
@@ -1243,6 +1285,8 @@ typealias resultsForConfigClosure     = ([PermissionResult]) -> Void
             permissionStatus = statusBluetooth()
         case .motion:
             permissionStatus = statusMotion()
+        case .mediaLibrary:
+          permissionStatus = statusMediaLibrary()
         }
 
         // Perform completion

PermissionScope/Permissions.swift

@@ -16,6 +16,7 @@ import CoreBluetooth
 import CoreMotion
 import CloudKit
 import Accounts
+import MediaPlayer
 
 /**
 *  Protocol for permission configurations.
@@ -76,3 +77,7 @@ public typealias requestPermissionShowAlert     = (PermissionType) -> Void
 @objc public class MotionPermission: NSObject, Permission {
     public let type: PermissionType = .motion
 }
+
+@objc public class MediaLibraryPermission: NSObject, Permission {
+    public let type: PermissionType = .mediaLibrary
+}

PermissionScope/Structs.swift

@@ -10,7 +10,7 @@ import Foundation
 
 /// Permissions currently supportes by PermissionScope
 @objc public enum PermissionType: Int, CustomStringConvertible {
-    case contacts, locationAlways, locationInUse, notifications, microphone, camera, photos, reminders, events, bluetooth, motion
+    case contacts, locationAlways, locationInUse, notifications, microphone, camera, photos, reminders, events, bluetooth, motion, mediaLibrary
 
     public var prettyDescription: String {
         switch self {
@@ -34,10 +34,11 @@ import Foundation
         case .reminders:        return "Reminders"
         case .bluetooth:        return "Bluetooth"
         case .motion:           return "Motion"
+        case .mediaLibrary:     return "MediaLibrary"
         }
     }
 
-    static let allValues = [contacts, locationAlways, locationInUse, notifications, microphone, camera, photos, reminders, events, bluetooth, motion]
+    static let allValues = [contacts, locationAlways, locationInUse, notifications, microphone, camera, photos, reminders, events, bluetooth, motion, mediaLibrary]
 }
 
 /// Possible statuses for a permission.