Add method to check current iOS notification settings

Author: wwwdata

packages/firebase_messaging/ios/Classes/FirebaseMessagingPlugin.m

@@ -122,6 +122,15 @@ - (void)handleMethodCall:(FlutterMethodCall *)call result:(FlutterResult)result
     NSNumber *value = call.arguments;
     [FIRMessaging messaging].autoInitEnabled = value.boolValue;
     result(nil);
+  } else if ([@"iosCheckPermissions" isEqualToString:method]) {
+    UIUserNotificationSettings *currentSettings =
+        [[UIApplication sharedApplication] currentUserNotificationSettings];
+    NSDictionary *settingsDictionary = @{
+      @"sound" : [NSNumber numberWithBool:currentSettings.types & UIUserNotificationTypeSound],
+      @"badge" : [NSNumber numberWithBool:currentSettings.types & UIUserNotificationTypeBadge],
+      @"alert" : [NSNumber numberWithBool:currentSettings.types & UIUserNotificationTypeAlert],
+    };
+    result(settingsDictionary);
   } else {
     result(FlutterMethodNotImplemented);
   }

packages/firebase_messaging/lib/firebase_messaging.dart

@@ -134,6 +134,11 @@ class FirebaseMessaging {
         throw UnsupportedError("Unrecognized JSON message");
     }
   }
+
+  Future<IosNotificationSettings> checkIosNotificationSettings() async {
+    return IosNotificationSettings._fromMap(
+        await _channel.invokeMapMethod<String, bool>('iosCheckPermissions'));
+  }
 }
 
 class IosNotificationSettings {
@@ -159,4 +164,14 @@ class IosNotificationSettings {
 
   @override
   String toString() => 'PushNotificationSettings ${toMap()}';
+
+  @override
+  int get hashCode => sound.hashCode ^ alert.hashCode ^ badge.hashCode;
+
+  @override
+  bool operator ==(dynamic other) =>
+      other is IosNotificationSettings &&
+      other.sound == sound &&
+      other.alert == alert &&
+      other.badge == badge;
 }

packages/firebase_messaging/test/firebase_messaging_test.dart

@@ -166,6 +166,19 @@ void main() {
 
     verify(mockChannel.invokeMethod<void>('setAutoInitEnabled', false));
   });
+
+  test('checkIosNotificationSettings', () async {
+    when(mockChannel.invokeMapMethod<String, bool>('iosCheckPermissions'))
+        .thenAnswer((_) async =>
+            const IosNotificationSettings(sound: true, alert: true, badge: true)
+                .toMap());
+
+    expect(await firebaseMessaging.checkIosNotificationSettings(),
+        const IosNotificationSettings(sound: true, alert: true, badge: true));
+    verify(mockChannel.invokeMapMethod<String, bool>(captureAny))
+        .captured
+        .single;
+  });
 }
 
 class MockMethodChannel extends Mock implements MethodChannel {}