Merge pull request #598 from Baseflow/issue/597

Fix deprecation warning on iOS using phone permissions.

permission_handler/CHANGELOG.md

+## 8.1.1
+
+* Fixed deprecation issue when checking phone capabilities on iOS (see issue [#597](https://github.com/Baseflow/flutter-permission-handler/issues/597)).
+
 ## 8.1.0
 
 * Added support for iOS 12+ Critical Alerts permission requesting.

permission_handler/example/ios/Runner.xcodeproj/project.pbxproj

@@ -355,6 +355,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = 7624MWN53C;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -491,6 +492,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = 7624MWN53C;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -521,6 +523,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				DEVELOPMENT_TEAM = 7624MWN53C;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",

permission_handler/example/lib/main.dart

@@ -114,23 +114,27 @@ class _PermissionState extends State<PermissionWidget> {
         _permissionStatus.toString(),
         style: TextStyle(color: getPermissionColor()),
       ),
-      trailing: IconButton(
-          icon: const Icon(
-            Icons.info,
-            color: Colors.white,
-          ),
-          onPressed: () {
-            checkServiceStatus(context, _permission);
-          }),
+      trailing: (_permission is PermissionWithService)
+          ? IconButton(
+              icon: const Icon(
+                Icons.info,
+                color: Colors.white,
+              ),
+              onPressed: () {
+                checkServiceStatus(
+                    context, _permission as PermissionWithService);
+              })
+          : null,
       onTap: () {
         requestPermission(_permission);
       },
     );
   }
 
-  void checkServiceStatus(BuildContext context, Permission permission) async {
+  void checkServiceStatus(
+      BuildContext context, PermissionWithService permission) async {
     ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-      content: Text((await permission.status).toString()),
+      content: Text((await permission.serviceStatus).toString()),
     ));
   }
 

permission_handler/ios/Classes/strategies/PhonePermissionStrategy.m

@@ -13,40 +13,55 @@
 @implementation PhonePermissionStrategy
 
 - (PermissionStatus)checkPermissionStatus:(PermissionGroup)permission {
-    return PermissionStatusDenied;
+  return PermissionStatusDenied;
 }
 
 - (ServiceStatus)checkServiceStatus:(PermissionGroup)permission {
-    // https://stackoverflow.com/a/5095058
-    if (![[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"tel://"]]) {
-        return ServiceStatusNotApplicable;
-    }
-
-    return [self canDevicePlaceAPhoneCall] ? ServiceStatusEnabled : ServiceStatusDisabled;
+  // https://stackoverflow.com/a/5095058
+  if (![[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"tel://"]]) {
+    return ServiceStatusNotApplicable;
+  }
+  
+  return [self canDevicePlaceAPhoneCall] ? ServiceStatusEnabled : ServiceStatusDisabled;
 }
 
 - (void)requestPermission:(PermissionGroup)permission completionHandler:(PermissionStatusHandler)completionHandler {
-    completionHandler(PermissionStatusPermanentlyDenied);
+  completionHandler(PermissionStatusPermanentlyDenied);
 }
 
 
-// https://stackoverflow.com/a/11595365
+/**
+ * Returns YES if the device can place a phone call.
+ */
 -(bool) canDevicePlaceAPhoneCall {
-    /*
-     * Returns YES if the device can place a phone call
-     */
-
-    // Device supports phone calls, lets confirm it can place one right now
-    CTTelephonyNetworkInfo *netInfo = [[CTTelephonyNetworkInfo alloc] init];
-    CTCarrier *carrier = [netInfo subscriberCellularProvider];
-    NSString *mnc = [carrier mobileNetworkCode];
-    if (([mnc length] == 0) || ([mnc isEqualToString:@"65535"])) {
-        // Device cannot place a call at this time.  SIM might be removed.
-        return NO;
-    } else {
-        // Device can place a phone call
+  CTTelephonyNetworkInfo *netInfo = [[CTTelephonyNetworkInfo alloc] init];
+  
+  if(@available(iOS 12.0, *)) {
+    NSDictionary<NSString *, CTCarrier *> *providers = [netInfo serviceSubscriberCellularProviders];
+    for (NSString *key in providers) {
+      CTCarrier *carrier = [providers objectForKey:key];
+      if ([self canPlacePhoneCallWithCarrier:carrier]) {
         return YES;
+      }
     }
+    
+    return NO;
+  } else {
+    CTCarrier *carrier = [netInfo subscriberCellularProvider];
+    return [self canPlacePhoneCallWithCarrier:carrier];
+  }
+}
+
+-(bool)canPlacePhoneCallWithCarrier:(CTCarrier *)carrier {
+  // https://stackoverflow.com/a/11595365
+  NSString *mnc = [carrier mobileNetworkCode];
+  if (([mnc length] == 0) || ([mnc isEqualToString:@"65535"])) {
+    // Device cannot place a call at this time.  SIM might be removed.
+    return NO;
+  } else {
+    // Device can place a phone call
+    return YES;
+  }
 }
 
 @end

permission_handler/pubspec.yaml

 name: permission_handler
 description: Permission plugin for Flutter. This plugin provides a cross-platform (iOS, Android) API to request and check permissions.
-version: 8.1.0
+version: 8.1.1
 homepage: https://github.com/baseflowit/flutter-permission-handler
 
 flutter: