Integrate the Mobile App Messaging SDK Extension for iOS

The Mobile App Messaging SDK supports Push Delivery events and a Carousel template. To use these features, add the Service Extensions and Content Extensions targets in your app. Next, integrate the iOS Extension SDK MCExtensionSDK with your app.

To integrate the Mobile App Messaging SDK Extension for iOS, you need:

• Service and Content Extension targets in your main app.
• The Mobile App Messaging SDK integration for iOS.

This section shows how to set up and configure the Notification Service Extension for use with the iOS Extension SDK.

The notification service app extension is a separate bundle within the main app. To add a service extension target, perform these steps.

1. In Xcode, go to File > New > Target.

2. In the iOS > Application Extension section, select Notification Service Extension.

3. Click Next.

4. Configure the app extension and click Finish.

5. In your project target’s General settings, verify that the new extension is listed under Frameworks, Libraries, and Embedded Content. If it’s not there, add it.

   

   Use the same Xcode-managed profile for the extension targets as the main project. Match the service extension version to the main app version whenever possible, and prefix the service extension bundle ID with the main app’s bundle ID. For example, if the main app’s bundle ID is com.salesforce.MyAwesomeApp, the service extension bundle ID can be com.salesforce.MyAwesomeApp.MyServiceExtension.

To integrate the Mobile App Messaging SDK Extension for iOS with the Service Extension, choose a method based on your project setup and preference.

• Integrate the SDK with CocoaPods
• Integrate the SDK with Swift Package Manager (SPM)
• Integrate the SDK Manually

To add the SDK as a dependency in your app’s Podfile, follow the instructions for Adding pods to an Xcode project on the CocoaPods documentation site.

After the installation process, open the .xcworkspace file created by CocoaPods using Xcode.

To integrate the Mobile App Messaging SDK iOS Extension using SPM, follow these steps.

1. In Xcode, open your project and select Project Settings.
2. Go to the Package Dependencies tab, and click + to add a new package.
3. Enter the repository URL and add these packages required for your implementation:
   • MobileAppMessagingSDK
   • PushFeatureSDK
4. Review the package details and confirm to complete the installation.

To integrate the extension SDK manually:

1. Download these SDKs:

   • MobileAppMessagingSDK
   • PushFeatureSDK
   • SFMCSDK

2. Copy the relevant .xcframework directories from your downloads folder into your project folder.

3. In Xcode, open your project and select the appropriate target. Add the required .xcframework files to Frameworks, Libraries, and Embedded Content in the target’s General settings.

4. Add MarketingCloudSDK.bundle to Copy Bundle Resources under Build Phases.

5. In Build Settings, add -ObjC to Other Linker Flags.

Remove all autogenerated code and inherit the main class of the Service Extension from the SFMCNotificationService class.

The MCExtensionSDK manages the UNNotificationServiceExtension lifecycle methods. However, you may need to customize behavior, such as:

• Enabling or disabling logging and configuring log levels
• Downloading and attaching images or videos to push notifications
• Adding custom key-value pairs to the notification’s userInfo
• Performing other necessary operations

To enable or disable logging and configure log levels, override the sfmcProvideConfig() method: override func sfmcProvideConfig() → SFNotificationServiceConfig

To show the first image of the Carousel template as a thumbnail, override the sfmcProvideConfig() method. Then, set the value of shouldShowCarouselThumbnail to false. This code example shows how to make these changes in Swift.

Use this code example to make these changes in Objective-C.

To execute custom code, override func sfmcDidReceive(_ request: UNNotificationRequest, mutableContent: UNMutableNotificationContent, withContentHandler contentHandler: @escaping ([AnyHashable : Any]?) → Void) to process notifications, such as downloading media or adding custom key-value pairs.

This code example depicts a Swift-based implementation where SFMCNotificationService is extended to configure logging through sfmcProvideConfig() and customize push notification handling in sfmcDidReceive(_:mutableContent:withContentHandler:), allowing for operations like adding custom key-value pairs.

Here’s an example of an Objective-C-based implementation where SFMCNotificationService is extended to configure logging using sfmcProvideConfig and handle custom push notification processing using sfmcDidReceiveRequest:mutableContent:withContentHandler:, enabling actions such as adding custom key-value pairs to the notification payload.

To display rich media notifications, you must add and configure a Content Extension to your project.

Notification Content Extensions run as separate processes within your app, providing isolation and enhancing security. Follow these steps to add a content extension target.

1. In Xcode, go to File > New > Target.
2. From the iOS > Application Extension section, select Notification Content Extension.
3. Click Next.
4. Provide a name and configure your extension settings.
5. Click Finish.
6. In the general settings for your target, verify that the Frameworks, Libraries, and Embedded Content section lists the new extension. If it isn't present, add it.

The process for integrating the MCExtensionSDK into your Content Extension follows the same process as the one for integrating the Service Extension. For detailed instructions, see Integrate the Extension SDK with the Service Extension.

After you complete the integration steps, verify that your Content Extension’s target settings lists the library in the Frameworks, Libraries, and Embedded Content section, as shown in this image.

Remove all Apple-generated boilerplate code and inherit the main class of the Content Extension from SFMCNotificationViewController, as shown in these examples.

Configure your project and content extension’s Info.plist file to register the correct notification category, build the rich push notification UI in code using the Extension SDK, and enable user interaction. These steps ensure the content extension is correctly triggered and displays the intended rich UI.

To set up and synchronize the notification category between your content extension’s Info.plist file and Marketing Cloud, perform these steps.

1. Work with your Marketing Admin to obtain the correct category name for the Rich UI template.
2. In your content extension’s Info.plist file, replace the value for UNNotificationExtensionCategory under NSExtension > NSExtensionAttributes.

Unlike Apple’s autogenerated content extension template, MCExtensionSDK builds the notification UI programmatically instead of using an Interface Builder file. Follow these steps to modify the project to build the rich push notification UI using the MCExtensionSDK, rather than using a storyboard.

1. Remove the storyboard reference by deleting the NSExtensionMainStoryboard item from Info.plist > NSExtension.

2. Add the NSExtensionPrincipalClass key to Info.plist > NSExtension

   • Value type: String
   • Value: $(PRODUCT_MODULE_NAME).<MainClassName>

   For Objective-C projects, specify the class name directly.

3. Remove MainInterface.storyboard from your project.

Add this key to your content extension’s Info.plist file.

• Key: UNNotificationExtensionUserInteractionEnabled
• Value type: Boolean
• Value: YES

This screenshot illustrates an Info.plist file in a Swift-based implementation with configured NSExtensionAttributes and NSExtensionPrincipalClass.

This screenshot illustrates an Info.plist file in an Objective-C-based implementation with configured NSExtensionAttributes and NSExtensionPrincipalClass.

You can further customize extension behavior by:

• Configuring logging
• Adjusting the HTTP request timeout

For Swift-based implementations, implement the sfmcProvideConfig() method to define custom log levels and HTTP timeout settings for the extension.

In Objective-C, use the sfmcProvideConfig method to configure logging behavior and HTTP request timeout values for the extension.

The Main App, Service Extension, and Content Extension run in three separate processes. iOS limits inter-process communication (IPC) between the extensions and the main app. To ensure that Push Delivery events and the Carousel template work as intended, the Mobile App Messaging SDK for iOS and the iOS SDK Extension rely on the App Groups capability.

1. Select your main app target and navigate to the Signing & Capabilities tab.

2. Add the App Groups capability.

3. Add a new app group container or use an existing one. Note down this container name. If you’re creating a new container, we recommend using a name in this format:

   group.<bundle-id>.sfmarketingcloudsdk

4. Add the container name to a new Info.plist key with these details:

   • Info.plist key name: SF_MARKETINGCLOUD_APP_GROUP_KEY
   • Info.plist value type: String
   • Info.plist value: The app group container name (for example, group.com.salesforce.MyAwesomeApp.sfmarketingcloudsdk)

Repeat the steps listed in the previous section to add app groups for your Service Extension and Content Extension targets. When adding app groups, make sure you use the same container name as prescribed in the previous step. Additionally, update each extension’s Info.plist with the same SF_MARKETINGCLOUD_APP_GROUP_KEY key and value used in the main app.

If a Carousel image has an associated URL action, tapping the image triggers the URL handling delegate. For instructions on configuring URL handling, see Customize Push Notification Functionality for iOS Apps.