added accessNotificationPolicy to permissions.dart + fixed tests

permission_handler/example/ios/Podfile

@@ -72,9 +72,6 @@ post_install do |installer|
         ## dart: PermissionGroup.notification
         'PERMISSION_NOTIFICATIONS=1',
 
-        ## dart: PermissionGroup.criticalAlerts
-        'PERMISSION_CRITICAL_ALERTS=1',
-
         ## dart: PermissionGroup.mediaLibrary
         'PERMISSION_MEDIA_LIBRARY=1',
 
@@ -86,6 +83,9 @@ post_install do |installer|
 
         ## dart: PermissionGroup.appTrackingTransparency
         'PERMISSION_APP_TRACKING_TRANSPARENCY=1'
+
+        ## dart: PermissionGroup.criticalAlerts
+        'PERMISSION_CRITICAL_ALERTS=1',
       ]
 
     end

permission_handler_platform_interface/lib/src/permissions.dart

@@ -147,6 +147,11 @@ class Permission {
   ///iOS: Notifications that override your ringer
   static const criticalAlerts = Permission._(26);
 
+  ///Android: Allows the user to access the notification policy of the phone.
+  /// EX: Allows app to turn on and off do-not-disturb.
+  ///iOS: Nothing
+  static const accessNotificationPolicy = Permission._(27);
+
   /// Returns a list of all possible [PermissionGroup] values.
   static const List<Permission> values = <Permission>[
     calendar,
@@ -175,7 +180,8 @@ class Permission {
     systemAlertWindow,
     requestInstallPackages,
     appTrackingTransparency,
-    criticalAlerts
+    criticalAlerts,
+    accessNotificationPolicy,
   ];
 
   static const List<String> _names = <String>[
@@ -205,7 +211,8 @@ class Permission {
     'systemAlertWindow',
     'requestInstallPackages',
     'appTrackingTransparency',
-    'criticalAlerts'
+    'criticalAlerts',
+    'accessNotificationPolicy',
   ];
 
   @override

permission_handler_platform_interface/test/src/permissions_test.dart

@@ -6,7 +6,7 @@ void main() {
       () {
     final values = Permission.values;
 
-    expect(values.length, 26);
+    expect(values.length, 28);
   });
 
   test('check if byValue returns corresponding PermissionGroup value', () {