Sleep tracking made easy | Firebase and Flutter - a good match? | Your personalized content for iOS, Android, Flutter and more

[raywenderlich.com]( Weekly Newsletter Issue 332 · Jul 28 2021 Hello {NAME} 👋 No matter whether you're working with iOS, Android or Flutter, we've got just the content you need. This week, your lineup consists of articles on Picture in Picture, Android Sleep API, and Firebase on Flutter! Articles [Picture in Picture Across All Platforms]( [Picture in Picture Across All Platforms]( [Learn how to implement Picture in Picture for default and custom video players across all app platforms.]( iOS & Swift · 12 min  [bookmark]( [Read now →]( [Learn how to implement Picture in Picture for default and custom video players across all app platforms.]( [Read now →]( [Android Sleep API Tutorial: Getting Started]( [Android Sleep API Tutorial: Getting Started]( [Learn how to use the Android Sleep API in your Kotlin apps to track when the user is asleep, awake, how long they slept, and the confidence of the results.]( Android & Kotlin · 17 min  [bookmark]( [Read now →]( [Learn how to use the Android Sleep API in your Kotlin apps to track when the user is asleep, awake, how long they slept, and the confidence of the results.]( [Read now →]( [Firebase Realtime Database Tutorial for Flutter]( [Firebase Realtime Database Tutorial for Flutter]( [Get started with Firebase Realtime Database by building a chat app in Flutter that provides instant updates to connected devices.]( Flutter · 15 min  [bookmark]( [Read now →]( [Get started with Firebase Realtime Database by building a chat app in Flutter that provides instant updates to connected devices.]( [Read now →]( SPONSORED [Free In-App Messaging SDK&UI Kits for iOS/Swift]( [Stream Chat is the easiest way to add messaging to your iOS app. High-level UI components connect the Stream Chat API with minimal coding. Try Stream Chat free for 30 days or apply for your Maker Account, free forever for qualifying teams.]( Fun fact: Did you know you could reach over 100K+ subscribers with our newsletter, if you sponsored it? [Show me how!]( [raywenderlich.com Subscription]( [raywenderlich.com]( To make sure you keep getting these emails, please add newsletter@raywenderlich.com to your address book or put us on your email allow list. Want out of the loop? [Unsubscribe](. Our postal address: 1882 Hawksbill Rd, McGaheysville, VA 22840 [facebook]([twitter](