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Fixing Notification Issues in Android 11

Learn how to resolve the problem of notifications not appearing in Android 11 with this detailed guide and code examples. --- This video is based on the question https://stackoverflow.com/q/69862752/ asked by the user 'Alex Goodman' ( https://stackoverflow.com/u/17300538/ ) and on the answer https://stackoverflow.com/a/69865914/ provided by the user 'Alex Goodman' ( https://stackoverflow.com/u/17300538/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Notification does not appear in Android 11 (sdk 30) Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Resolving Notification Issues in Android 11 Notifications are a crucial part of mobile app development, allowing users to stay informed about important updates. However, developers often face challenges when implementing notifications, especially with newer versions of Android, like Android 11 (SDK 30). In this guide, we will explore a specific issue: why notifications may not appear in Android 11 and how to fix it effectively. The Problem: Missing Notifications in Android 11 Many developers have encountered issues where notifications do not appear when they run their applications on Android 11, despite it functioning well in previous versions like Android 9 (SDK 28). The core of our problem lies in the changed requirements and code handling for notifications in the latest Android updates. Background of the Issue As developers test their applications on different versions of Android, inconsistencies often arise. For instance, a notification might work perfectly on devices running Android 9, but developers like one user testing on the Nexus 5 with Android 11 found that the notifications simply did not appear. Initial Code Snippet for Notification Creation Here’s the original code used to create notification channels and show notifications: [[See Video to Reveal this Text or Code Snippet]] The Solution: Fixing the Notification Style After further investigation and troubleshooting, the underlying problem was discovered to be related to the specified style for notifications. This is often overlooked but can lead to significant issues when working with media-style notifications. Here's how to correct it. Key Change to Notification Style The original code included a line that set a media session for the notification style: [[See Video to Reveal this Text or Code Snippet]] However, this implementation is not compatible with Android 11. Instead, to resolve the issue, you need to simplify the style setting. Use the following corrected line of code: [[See Video to Reveal this Text or Code Snippet]] Final Code Implementation Here’s how the revised code for showing notifications looks: [[See Video to Reveal this Text or Code Snippet]] Summary of Changes Remove the media session part from the notification style when creating notifications targeting Android 11. Use the simplified style setting to ensure notifications appear as intended on updated Android versions. Conclusion Implementing notifications in Android can be tricky, especially with frequent updates and changes across versions. By understanding the peculiarities of Android 11 and fixing the notification style as outlined above, developers can ensure their applications function seamlessly across different devices and Android versions. Happy coding!