Set External ID

android/build.gradle

@@ -34,7 +34,7 @@ android {
 }
 
 dependencies {
-    compile('com.onesignal:OneSignal:3.10.3')
+    compile('com.onesignal:OneSignal:3.10.5')
 }
 
 // Adds required manifestPlaceholders keys to allow mainifest merge gradle step to complete

android/src/main/java/com/onesignal/flutter/OneSignalPlugin.java

@@ -92,6 +92,10 @@ else if (call.method.contentEquals("OneSignal#promptPermission"))
       Log.e("onesignal", "promptPermission() is not applicable in Android.");
     else if (call.method.contentEquals("OneSignal#didSetNotificationOpenedHandler"))
       this.didSetNotificationOpenedHandler();
+    else if (call.method.contentEquals("OneSignal#setExternalUserId"))
+      this.setExternalUserId(call, result);
+    else if (call.method.contentEquals("OneSignal#removeExternalUserId")) 
+      this.removeExternalUserId(result);
     else
       result.notImplemented();
   }
@@ -250,6 +254,18 @@ private void didSetNotificationOpenedHandler() {
     }
   }
 
+  private void setExternalUserId(MethodCall call, Result result) {
+     OneSignal.setExternalUserId((String)call.argument("externalUserId"));
+
+     result.success(null);
+  }
+
+  private void removeExternalUserId(Result result) {
+     OneSignal.removeExternalUserId();
+
+     result.success(null);
+  }
+
   @Override
   public void onOSSubscriptionChanged(OSSubscriptionStateChanges stateChanges) {
     this.channel.invokeMethod("OneSignal#subscriptionChanged", OneSignalSerializer.convertSubscriptionStateChangesToMap(stateChanges));

example/ios/Podfile

@@ -55,7 +55,7 @@ target 'Runner' do
 end
 
 target 'OneSignalNotificationServiceExtension' do
-   pod 'OneSignal', '>= 2.9.3', '< 3.0'
+   pod 'OneSignal', '>= 2.9.4', '< 3.0'
 end
 
 post_install do |installer|

example/lib/main.dart

@@ -14,6 +14,7 @@ class MyApp extends StatefulWidget {
 class _MyAppState extends State<MyApp> {
   String _debugLabelString = "";
   String _emailAddress;
+  String _externalUserId;
   bool _enableConsentButton = false;
 
   // CHANGE THIS parameter to true if you want to test GDPR privacy consent
@@ -165,6 +166,21 @@ class _MyAppState extends State<MyApp> {
     });
   }
 
+  void _handleSetExternalUserId() {
+    print("Setting external user ID");
+    OneSignal.shared.setExternalUserId(_externalUserId);
+    this.setState(() {
+      _debugLabelString = "Set External User ID";
+    });
+  }
+
+  void _handleRemoveExternalUserId() {
+    OneSignal.shared.removeExternalUserId();
+    this.setState(() {
+      _debugLabelString = "Removed external user ID";
+    });
+  }
+
   void _handleSendNotification() async {
     var status = await OneSignal.shared.getPermissionSubscriptionState();
 
@@ -285,12 +301,40 @@ class _MyAppState extends State<MyApp> {
                     new OneSignalButton("Post Silent Notification",
                         _handleSendSilentNotification, !_enableConsentButton)
                   ]),
+                  new TableRow(children: [
+                    new TextField(
+                      textAlign: TextAlign.center,
+                      decoration: InputDecoration(
+                          hintText: "External User ID",
+                          labelStyle: TextStyle(
+                            color: Color.fromARGB(255, 212, 86, 83),
+                          )),
+                      onChanged: (text) {
+                        this.setState(() {
+                          _externalUserId = text == "" ? null : text;
+                        });
+                      },
+                    )
+                  ]),
+                  new TableRow(children: [
+                    Container(
+                      height: 8.0,
+                    )
+                  ]),
+                  new TableRow(children: [
+                    new OneSignalButton(
+                        "Set External User ID", _handleSetExternalUserId, !_enableConsentButton)
+                  ]),
+                  new TableRow(children: [
+                    new OneSignalButton(
+                        "Remove External User ID", _handleRemoveExternalUserId, !_enableConsentButton)
+                  ]),
                   new TableRow(children: [
                     new Container(
                       child: new Text(_debugLabelString),
                       alignment: Alignment.center,
                     )
-                  ])
+                  ]),
                 ],
               ),
             ),

example/pubspec.yaml

@@ -4,9 +4,6 @@ description: Demonstrates how to use the onesignal plugin.
 dependencies:
   flutter:
     sdk: flutter
-
-  flutter_test:
-    sdk: flutter
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.2

ios/Classes/OneSignalPlugin.m

@@ -126,6 +126,10 @@ - (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
         [self logoutEmail:call withResult:result];
     } else if ([@"OneSignal#didSetNotificationOpenedHandler" isEqualToString:call.method]) {
         [self didSetNotificationOpenedHandler];
+    } else if ([@"OneSignal#setExternalUserId" isEqualToString:call.method]) {
+        [OneSignal setExternalUserId:call.arguments[@"externalUserId"]];
+    } else if ([@"OneSignal#removeExternalUserId" isEqualToString:call.method]) {
+        [OneSignal removeExternalUserId];
     } else {
         result(FlutterMethodNotImplemented);
     }

ios/onesignal.podspec

@@ -13,7 +13,7 @@ Pod::Spec.new do |s|
   s.source_files = 'Classes/**/*'
   s.public_header_files = 'Classes/**/*.h'
   s.dependency 'Flutter'
-  s.dependency 'OneSignal', '>= 2.9.3', '< 3.0'
+  s.dependency 'OneSignal', '>= 2.9.4', '< 3.0'
   s.ios.deployment_target = '8.0'
 end
 

lib/onesignal.dart

@@ -262,6 +262,18 @@ class OneSignal {
     return await _channel.invokeMethod("OneSignal#logoutEmail");
   }
 
+  /// OneSignal allows you to set a custom ID for your users. This makes it so that
+  /// if your app has its own user ID's, you can use your own custom user ID's with
+  /// our API instead of having to save their OneSignal user ID's.
+  Future<void> setExternalUserId(String externalId) async {
+    return await _channel.invokeMethod("OneSignal#setExternalUserId", {'externalUserId' : externalId});
+  }
+
+  /// Removes the external user ID that was set for the current user.
+  Future<void> removeExternalUserId() async {
+    return await _channel.invokeMethod("OneSignal#removeExternalUserId");
+  }
+
   // Private function that gets called by ObjC/Java
   Future<Null> _handleMethod(MethodCall call) async {
     if (call.method == 'OneSignal#handleReceivedNotification' &&

pubspec.yaml

@@ -14,9 +14,10 @@ dependencies:
     sdk: flutter
 
 dev_dependencies:
+  test: ^1.5.1
   flutter_test:
     sdk: flutter
 
 environment:
-  sdk: ">=2.1.0-dev.7.1 <3.0.0"
-  flutter: ">=0.10.1-pre.45 <2.0.0"
+  sdk: ">=2.0.0-dev.28.0 <3.0.0"
+  flutter: ">=0.1.4 <2.0.0"

test/mock_channel.dart

@@ -64,6 +64,12 @@ class OneSignalMockChannelController {
       case "OneSignal#deleteTags":
         this.state.deleteTags = call.arguments;
         return {"success": true};
+      case "OneSignal#setExternalUserId":
+        this.state.externalId = (call.arguments as Map<dynamic, dynamic>)['externalUserId'] as String;
+        return {"success" : true};
+      case "OneSignal#removeExternalUserId":
+        this.state.externalId = null;
+        return {"success" : true};
     }
   }
 }
@@ -90,6 +96,7 @@ class OneSignalState {
   bool locationShared;
   OSNotificationDisplayType inFocusDisplayType;
   bool subscriptionState;
+  String externalId;
 
   // tags
   Map<dynamic, dynamic> tags;

test/onesignal_test.dart

@@ -111,4 +111,16 @@ void main() {
       expect(channelController.state.deleteTags, ['test1']);
     }));
   });
+
+  test('setting external user ID', () {
+    onesignal.setExternalUserId('test_ext_id').then(expectAsync1((v) {
+      expect(channelController.state.externalId, 'test_ext_id');
+    }));
+  });
+
+  test('removing external user ID', () {
+    onesignal.removeExternalUserId().then(expectAsync1((v) {
+      expect(channelController.state.externalId, null);
+    }));
+  });
 }