Firebase Docs Reference FirebaseInAppMessaging Framework Reference FIRInAppMessagingImageData Contain display data for an image for a fiam message. imageURL Undocumented imageRawData Gets the downloaded image data. It can be null if headless component fails to load it. -init Undocumented -initWithImageURL:imageData: Undocumented Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated September 25, 2018.