Customization

All of Braze’s in-app message types are highly customizable across messages, images, Font Awesome icons, click actions, analytics, editable styling, custom display options, and custom delivery options. Multiple options can be configured on a per in-app message basis from within the dashboard. Braze additionally provides multiple levels of advanced customization to satisfy a variety of use cases and needs.

Key-Value Pair Extras

ABKInAppMessage objects may carry key-value pairs as extras. These are specified on the dashboard when creating an in-app message campaign. Key-value pairs can be used to send data down along with an in-app message for further handling by your app, allowing you to add custom behaviors on top of what Braze provides.

Setting Delegates

In-app message display and delivery customizations can be accomplished in code by setting delegates. All of these customizations are entirely optional.

Core In-App Message Controller Delegate

The ABKInAppMessageControllerDelegate delegate contains one method, beforeInAppMessageDisplayed:, and is part of our Core subspec.

Set your ABKInAppMessageControllerDelegate delegate instance on the Braze ABKInAppMessageController by calling:

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[Appboy sharedInstance].inAppMessageController.delegate = self;

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Appboy.sharedInstance()?.inAppMessageController.delegate = self

In some cases (e.g., on session start), the in-app message may be triggered and displayed before the in-app message delegate is set. To guard against this, you can also set the in-app message delegate in the appboyOptions with key ABKInAppMessageControllerDelegateKey in startWithApiKey:inApplication:withLaunchOptions:withAppboyOptions.

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[Appboy startWithApiKey:@"YOUR-API_KEY"
          inApplication:application
      withLaunchOptions:options
      withAppboyOptions:@{ ABKInAppMessageControllerDelegateKey : self }];

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Appboy.startWithApiKey("YOUR-API-KEY",
                       inApplication:application,
                       withLaunchOptions:launchOptions,
                       withAppboyOptions:[ ABKInAppMessageControllerDelegateKey : self ])

In-App Message UI Controller Delegate

The ABKInAppMessageUIDelegate delegate can be used with our UI and InAppMessage subspecs.

Set your ABKInAppMessageUIDelegate delegate instance on the Braze ABKInAppMessageUIController by calling:

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[[Appboy sharedInstance].inAppMessageController.inAppMessageUIController setInAppMessageUIDelegate:self];

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Appboy.sharedInstance()?.inAppMessageController.inAppMessageUIController.setInAppMessageUIDelegate(self);

See our in-app message sample app for an example.

Migrate from Version 3.2.3 and Earlier

To migrate from version 3.2.3 or earlier, change the code with your delegate methods to conform to the ABKInAppMessageUIDelegate protocol instead of ABKInAppMessageControllerDelegate and set the delegate by calling:

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[[Appboy sharedInstance].inAppMessageController.inAppMessageUIController setInAppMessageUIDelegate:self];

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Appboy.sharedInstance()?.inAppMessageController.inAppMessageUIController.setInAppMessageUIDelegate(self);

Customizing Orientation

Setting Orientation For All In-App Messages

To set a fixed orientation for all in-app messages, you can set the supportedOrientationMask property on ABKInAppMessageUIController. Add the following code after your app’s call to startWithApiKey:inApplication:withLaunchOptions::

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// Set fixed in-app message orientation to portrait.
// Use UIInterfaceOrientationMaskLandscape to display in-app messages in landscape
id<ABKInAppMessageUIControlling> inAppMessageUIController = [Appboy sharedInstance].inAppMessageController.inAppMessageUIController;
((ABKInAppMessageUIController *)inAppMessageUIController).supportedOrientationMask = UIInterfaceOrientationMaskPortrait;

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// Set fixed in-app message orientation to portrait
// Use .landscape to display in-app messages in landscape
if let controller = Appboy.sharedInstance()?.inAppMessageController.inAppMessageUIController as? ABKInAppMessageUIController {
  controller.supportedOrientationMask = .portrait
}

Following this, all in-app messages will be displayed in the supported orientation, regardless of device orientation. Please note that the device orientation must also be supported by the in-app message’s orientation property in order for the message to display. For more information, see the section below.

Setting Orientation Per In-App Message

You may alternatively set orientation on a per-message basis. To do this, set an in-app message delegate. Then, in your beforeInAppMessageDisplayed: delegate method, set the orientation property on the ABKInAppMessage. For example:

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// Set inAppMessage orientation to portrait
inAppMessage.orientation = ABKInAppMessageOrientationPortrait;

// Set inAppMessage orientation to landscape
inAppMessage.orientation = ABKInAppMessageOrientationLandscape;

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  // Set inAppMessage orientation to portrait
  inAppMessage.orientation = ABKInAppMessageOrientation.portrait
    
  // Set inAppMessage orientation to landscape
  inAppMessage.orientation = ABKInAppMessageOrientation.landscape

In-app messages will not display if the device orientation does not match the orientation property on the in-app message.

For iPads, in-app messages will appear in the style of the user’s preferred orientation regardless of actual screen orientation.

Custom Handling In-App Message Display

When the ABKInAppMessageControllerDelegate is set, the following delegate method will be called before in-app messages are displayed:

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- (ABKInAppMessageDisplayChoice) beforeInAppMessageDisplayed:(ABKInAppMessage *)inAppMessage;

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func beforeInAppMessageDisplayed(inAppMessage: ABKInAppMessage!) -> ABKInAppMessageDisplayChoice

If you have only implemented ABKInAppMessageUIDelegate, the following UI delegate method will be called instead:

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- (ABKInAppMessageDisplayChoice) beforeInAppMessageDisplayed:(ABKInAppMessage *)inAppMessage withKeyboardIsUp:(BOOL)keyboardIsUp;

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func beforeInAppMessageDisplayed(inAppMessage: ABKInAppMessage!, withKeyboardIsUp keyboardIsUp: Bool) -> ABKInAppMessageDisplayChoice

You can customize in-app message handling by implementing this delegate method and returning one of the following values for ABKInAppMessageDisplayChoice:

You can use the beforeInAppMessageDisplayed: delegate method to add in-app message display logic, customize in-app messages before Braze displays them, or opt-out of Braze’s in-app message display logic and UI entirely.

For an implementation example, see our In-App Message Sample Application.

If you are using the Core subspec, this is the method where you should customize and display your in-app message, and then return ABKDiscardInAppMessage.

Overriding In-App Messages Before Display

If you would like to alter the display behavior of in-app messages, you should add any necessary display logic to your beforeInAppMessageDisplayed: delegate method. For example, you might want to display the in-app message from the top of the screen if the keyboard is currently being displayed, or take the in-app message data model and display the in-app message yourself.

Hiding the Status Bar During Display

For Full and HTML in-app messages, the SDK will attempt to place the message over the status bar by default. However, in some cases the status bar may still appear on top of the in-app message. As of version 3.21.1 of the iOS SDK, you can force the status bar to hide when displaying Full and HTML in-app messages by setting ABKInAppMessageHideStatusBarKey to YES within appboyOptions in startWithApiKey:inApplication:withLaunchOptions:withAppboyOptions.

Logging Impressions and Clicks

Logging in-app message impressions and clicks is not automatic when you implement completely custom handling (i.e. if you circumvent Braze’s in-app message display by returning ABKDiscardInAppMessage in your beforeInAppMessageDisplayed:). If you choose to implement your own UI using our in-app message models, you must log analytics with the following methods on the ABKInAppMessage class:

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// Registers that a user has viewed an in-app message with the Braze server.
- (void) logInAppMessageImpression;
// Registers that a user has clicked on an in-app message with the Braze server.
- (void) logInAppMessageClicked;

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// Registers that a user has viewed a in-app message with the Braze server.
func logInAppMessageImpression()
// Registers that a user has clicked on a in-app message with the Braze server.
func logInAppMessageClicked()

Furthermore, you should be logging button clicks on subclasses of ABKInAppMessageImmersive (i.e., Modal and Full in-app messages):

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// Logs button click analytics
- (void)logInAppMessageClickedWithButtonID:(NSInteger)buttonID;

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// Logs button click analytics
func logInAppMessageClickedWithButtonID(buttonId: NSInteger)

Customizing In-App Message Behavior on Click

The inAppMessageClickActionType property on the ABKInAppMessage defines the action behavior after the in-app message is clicked. This property is read only. If you want to change the in-app message’s click behavior, you can call the following method on ABKInAppMessage:

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[inAppMessage setInAppMessageClickAction:clickActionType withURI:uri];

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inAppMessage.setInAppMessageClickAction(clickActionType: clickActionType, withURI: uri)

The inAppMessageClickActionType can be set to one of the following values:

Customizing In-App Message Body Clicks

This method cannot be used when using the Core subspec.

The following UI delegate method is called when the in-app message is clicked, and can be used to customize in-app message on-click behavior:

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- (BOOL) onInAppMessageClicked:(ABKInAppMessage *)inAppMessage;

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func onInAppMessageClicked(inAppMessage: ABKInAppMessage!) -> Bool

Customizing In-App Message Button Clicks

These methods cannot be used when using the Core subspec.

For clicks on in-app message buttons and HTML in-app message buttons (i.e., links), you can also use the following delegate methods for customization:

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- (BOOL)onInAppMessageButtonClicked:(ABKInAppMessageImmersive *)inAppMessage
                             button:(ABKInAppMessageButton *)button;

- (BOOL)onInAppMessageHTMLButtonClicked:(ABKInAppMessageHTML *)inAppMessage
                             clickedURL:(nullable NSURL *)clickedURL
                               buttonID:(NSString *)buttonID;

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func onInAppMessageButtonClicked(inAppMessage: ABKInAppMessageImmersive!,
                                 button: ABKInAppMessageButton) -> Bool

func onInAppMessageHTMLButtonClicked(inAppMessage: ABKInAppMessageHTML!,
                                     clickedURL: URL, buttonID: String) -> Bool

Each method returns a BOOL value to indicate if Braze should continue to execute the click action.

To access the click action type of a button in a delegate method, you can use the following code:

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if ([inAppMessage isKindOfClass:[ABKInAppMessageImmersive class]]) {
      ABKInAppMessageImmersive *immersiveIAM = (ABKInAppMessageImmersive *)inAppMessage;
      NSArray<ABKInAppMessageButton *> *buttons = immersiveIAM.buttons;
      for (ABKInAppMessageButton *button in buttons) {
         // Button action type is accessible via button.buttonClickActionType
      }
   }

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if inAppMessage is ABKInAppMessageImmersive {
      let immersiveIAM = inAppMessage as! ABKInAppMessageImmersive;
      for button in inAppMessage.buttons as! [ABKInAppMessageButton]{
        // Button action type is accessible via button.buttonClickActionType
      }
    }

When an in-app message has buttons, the only click actions that will be executed are the ones on the ABKInAppMessageButton model. The in-app message body will not be clickable even though the ABKInAppMessage model will have the default click action (“News Feed”) assigned.

Display In-App Messages In a Custom View Controller

In-app messages can also be displayed within a custom view controller which you pass to Braze. Braze will animate the customized in-app message in and out, as well as handle analytics of the in-app message. The view controller must meet the following requirements:

• It must be a subclass or an instance of ABKInAppMessageViewController.
• The view of the returned view controller should be an instance of ABKInAppMessageView or its subclass.

The following UI delegate method is called every time an in-app message is offered to ABKInAppMessageViewController to allow the app would like to pass a custom view controller to Braze for in-app message display:

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- (ABKInAppMessageViewController *)inAppMessageViewControllerWithInAppMessage:(ABKInAppMessage *)inAppMessage;

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func inAppMessageViewControllerWithInAppMessage(inAppMessage: ABKInAppMessage!) -> ABKInAppMessageViewController!

All of our in-app message view controllers are open-sourced. You can use subclasses or categories to customize display or behavior of in-app messages.

See the in-app message view controllers for more details.

Custom In-App Message Triggering

By default in-app messages are triggered by event types which are logged by the SDK. If you would like to trigger in-app messages by server-sent events you are also able to achieve this.

To enable this feature you would send a silent push to the device which allows the device to log a SDK based event. This SDK event would subsequently trigger the user-facing in-app message.

Step 1: Handle Silent Push and Key Value Pairs

Add the following code within the application(_:didReceiveRemoteNotification:fetchCompletionHandler:) method:

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- (void)handleExtrasFromPush:(NSDictionary *)userInfo {
  NSLog(@"A push was received.");
  if (userInfo !=nil && userInfo[@"IS_SERVER_EVENT"] !=nil && userInfo[@"CAMPAIGN_NAME"]!=nil) {
    [[Appboy sharedInstance] logCustomEvent:@"IAM Trigger" withProperties:@{@"campaign_name": userInfo[@"CAMPAIGN_NAME"]}];
  }
 };

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func handleExtras(userInfo: [AnyHashable : Any]) {
  NSLog("A push was received");
  if userInfo != nil && (userInfo["IS_SERVER_EVENT"] as? String) != nil && (userInfo["CAMPAIGN_NAME"] as? String) != nil {
    Appboy.sharedInstance()?.logCustomEvent("IAM Trigger", withProperties: ["campaign_name": userInfo["CAMPAIGN_NAME"]])
  }
}

When the silent push is received an SDK recorded event “In-App Message Trigger” will be logged against the user profile. Note that these In-App Messages will only trigger if the silent push is received while the application is in foreground.

Step 2: Create a Push Campaign

Create a silent push campaign which is triggered via the server sent event. For details on how to create a silent push campaign please review this section of our Docs.

The push campaign must include key value pair extras which indicate that this push campaign is sent with the intention to log an SDK custom event. This event will be used to trigger the in-app message:

The code within the userNotificationCenter(_:willPresent:withCompletionHandler:) method checks for key IS_SERVER_EVENT and will log an SDK custom event if this is present.

You are able to alter either the event name or event properties by sending the desired value within the key-value pair extras of the push payload. These extras can be used as the parameter of either the event name, or as an event property, when logging the custom event.

Step 3: Create an In-App Message Campaign

Create your user visible in-app message campaign from within Braze’s dashboard. This campaign should have an Action Based delivery, and be triggered from the custom event logged from within the userNotificationCenter(_:willPresent:withCompletionHandler:) method.

In the example below the specific in-app message to be trigger has been configured by sending the event property as part of the initial silent push.

Due to a push message being used to to record an SDK logged custom event, Braze will need to store a push token for each user in order to enable this solution. For iOS users, Braze will only store a token from the point that a user has been served the OS’s push prompt. Prior to this the user will not be reachable using push and the above solution will not be possible.

Method Declarations

For additional information see the following header files:

• ABKInAppMessage.h
• ABKInAppMessageController.h
• ABKInAppMessageControllerDelegate.h
• ABKInAppMessageView.h
• ABKInAppMessageViewController.h

Implementation Samples

See AppDelegate.m, ViewController.m and CustomInAppMessageViewController.m in the in-app message sample app.