This issue often happens after upgrading Android Studio. You can usually fix it with the following steps:

1. Invalidate Caches / Restart:

Go to File > Invalidate Caches / Restart… and select Invalidate and Restart. This often resolves issues with the debug view not showing variable details.

1. Adjust Debug View:

In debug mode, right-click on the variable in the “Variables” panel, choose View as… or Show as…, and select “ToString” or “Value” to see the detailed contents.

1. Check for Obfuscation:

Make sure ProGuard or R8 obfuscation is not enabled for your debug build. In your build.gradle, ensure you have:

gradle

Apply

buildTypes {

debug {

minifyEnabled false

}

}

1. Check JDK Version:

Sometimes, using an incompatible JDK version can cause issues. Try switching to a stable JDK version (e.g., JDK 17) in Preferences > Build, Execution, Deployment > Build Tools > Gradle > Gradle JDK.

If none of these steps help, try reinstalling Android Studio.