Background refresh status platform interface (#1281)

* Fix/1174 background refresh status (#1176)

* Update project files

* Add a new background refresh permission check for iOS

* versions

* cleanups

* version bumps

* missing constants

* Revert to platforms to main

* Revert changes to Apple package

---------

Co-authored-by: Sebastian Roth <sebastian.roth@gmail.com>

permission_handler_platform_interface/CHANGELOG.md

+## 4.2.0
+
+* Adds a new permission `Permission.backgroundRefresh` to check the background refresh permission status on iOS & macOS platforms. This is a no-op on all other platforms.
+
 ## 4.1.0
 
 * Adds the `Permission.assistant` which allows users to request permissions to access SiriKit on iOS and macOS platforms. This is a no-op on all other platforms.

permission_handler_platform_interface/lib/src/permissions.dart

@@ -323,6 +323,9 @@ class Permission {
   /// iOS: SiriKit
   static const assistant = Permission._(38);
 
+  /// Permission for reading the current background refresh status. (iOS only)
+  static const backgroundRefresh = Permission._(39);
+
   /// Returns a list of all possible [PermissionGroup] values.
   static const List<Permission> values = <Permission>[
     // ignore: deprecated_member_use_from_same_package
@@ -365,6 +368,7 @@ class Permission {
     calendarWriteOnly,
     calendarFullAccess,
     assistant,
+    backgroundRefresh,
   ];
 
   static const List<String> _names = <String>[
@@ -407,6 +411,7 @@ class Permission {
     'calendarWriteOnly',
     'calendarFullAccess',
     'assistant',
+    'backgroundRefresh'
   ];
 
   @override

permission_handler_platform_interface/pubspec.yaml

@@ -3,7 +3,7 @@ description: A common platform interface for the permission_handler plugin.
 homepage: https://github.com/baseflow/flutter-permission-handler/tree/master/permission_handler_platform_interface
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 4.1.0
+version: 4.2.0
 
 dependencies:
   flutter:

permission_handler_platform_interface/test/src/permissions_test.dart

@@ -2,14 +2,13 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:permission_handler_platform_interface/permission_handler_platform_interface.dart';
 
 void main() {
-  test('Permission has the right amount of possible PermissionGroup values',
-      () {
+  test('Permission has the right amount of possible Permission values', () {
     const values = Permission.values;
 
-    expect(values.length, 39);
+    expect(values.length, 40);
   });
 
-  test('check if byValue returns corresponding PermissionGroup value', () {
+  test('check if byValue returns corresponding Permission value', () {
     const values = Permission.values;
 
     for (var i = 0; i < values.length; i++) {
@@ -24,6 +23,14 @@ void main() {
     expect(permissionName, 'Permission.calendar');
   });
 
+  test('check if toString works on all Permission values', () {
+    const values = Permission.values;
+
+    for (var i = 0; i < values.length; i++) {
+      expect(values[i].toString(), isNotNull);
+    }
+  });
+
   test(
       // ignore: lines_longer_than_80_chars
       'equality operator should return true for two instances with the same values',