123878

The bug reported in issue #123878 highlights that on newer Android versions, the app bar elevation change simply doesn't activate when the user scrolls, leaving the UI feeling static and flat. Why It Matters

If you are a developer looking to address this bug or explain it to your team, here is a full blog post draft tailored for a technical audience. 123878

Understanding the specific request for "subject 123878" requires looking at the technical landscape, as this number is most prominently associated with a significant framework issue regarding the Material 3 App Bar . The bug reported in issue #123878 highlights that

It maintains the "material" metaphor that Google's design language is built upon. Quick Fixes and Workarounds It maintains the "material" metaphor that Google's design

💡 If your app bar feels "broken" in Material 3, check your elevation logic against the new surface tint standards.

As noted in the GitHub report, this is particularly prevalent on devices running API 30 and above. Testing on an older emulator can help you confirm if the issue is framework-deep or OS-specific. The Road Ahead

Sometimes, explicitly setting the surfaceTintColor in your AppBarTheme can jumpstart the visual change that the system is failing to automate. 3. Check Your API Level