handoff fix

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 3.1.8
+
+* Updated iOS SDK to 4.7.6
+* Fixed issue with handoff event.
+
 ## 3.1.7
 
 * Updated Android SDK to 3.14.3

ios/Classes/PlaidFlutterPlugin.m

@@ -116,6 +116,8 @@ - (void) openWithArguments: (id _Nullable)arguments withResult:(FlutterResult)re
     PLKOnExitHandler exitHandler = ^(PLKLinkExit *exit) {
         __strong typeof(self) strongSelf = weakSelf;
         [strongSelf close];
+        // No HANDOFF event for exit so we can deallocate this right away.
+        strongSelf->_linkHandler = nil;
 
         NSMutableDictionary* arguments = [[NSMutableDictionary alloc] init];
         [arguments setObject:kOnExitType forKey:kTypeKey];
@@ -133,6 +135,10 @@ - (void) openWithArguments: (id _Nullable)arguments withResult:(FlutterResult)re
         [strongSelf sendEventWithArguments:@{kTypeKey: kOnEventType,
                                              kNameKey: [PlaidFlutterPlugin stringForEventName: event.eventName] ?: @"",
                                              kMetadataKey: [PlaidFlutterPlugin dictionaryFromEventMetadata: event.eventMetadata]}];
+        if (event.eventName.value == PLKEventNameValueHandoff) {
+            // This event is only received after onSuccess. So it's safe to deallocate the handler now.
+            strongSelf->_linkHandler = nil;
+        }
     };
 
     BOOL usingLinkToken = [token isKindOfClass:[NSString class]] && [token hasPrefix:kLinkTokenPrefix];
@@ -186,7 +192,6 @@ - (void) openWithArguments: (id _Nullable)arguments withResult:(FlutterResult)re
 - (void) close {
     UIViewController* rootViewController = [UIApplication sharedApplication].delegate.window.rootViewController;
     [rootViewController dismissViewControllerAnimated:YES completion:nil];
-    _linkHandler = nil;
 }
 
 - (void) closeWithResult:(FlutterResult)result {

ios/plaid_flutter.podspec

@@ -15,7 +15,7 @@ Enables Plaid in Flutter apps.
   s.source_files = 'Classes/**/*'
   s.public_header_files = 'Classes/**/*.h'
   s.dependency 'Flutter'
-  s.dependency 'Plaid', '4.7.5'
+  s.dependency 'Plaid', '4.7.6'
   s.static_framework = true
   s.ios.deployment_target = '11.0'
 end

pubspec.yaml

@@ -1,6 +1,6 @@
 name: plaid_flutter
 description: Plaid Link for Flutter. Integrates the native iOS, Android and Web SDKs.
-version: 3.1.7
+version: 3.1.8
 homepage: https://github.com/jorgefspereira/plaid_flutter
 repository: https://github.com/jorgefspereira/plaid_flutter
 issue_tracker: https://github.com/jorgefspereira/plaid_flutter/issues