Скачать или смотреть Fixing the StringBuilder Debugging Preview Issue in Android Studio

Discover how to resolve the frustrating issue of `StringBuilder` content not appearing in the debugger preview of Android Studio, enhancing your debugging experience and productivity!
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This video is based on the question https://stackoverflow.com/q/62851505/ asked by the user 'DeveloperMuerte' ( https://stackoverflow.com/u/13912317/ ) and on the answer https://stackoverflow.com/a/62858803/ provided by the user 'DeveloperMuerte' ( https://stackoverflow.com/u/13912317/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving the StringBuilder Debugging Preview Issue in Android Studio

If you've been using Android Studio for app development, you might have encountered a frustrating issue – the content of StringBuilder instances not displaying correctly in the debugger preview. Just yesterday, you could effortlessly view your strings, but today you're struggling with an inconvenient change in visibility that hinders your debugging process. Not to worry! In this guide, we’ll walk through the steps you can take to restore the functionality you're missing.

Understanding the Problem

After an update or an unforeseen change, the way your variables are displayed in the debugger may have altered. Specifically, you may be experiencing:

The need to double-click on the StringBuilder variable, then again on value to see its content.

The content displayed one character per line, making it cumbersome to compare several instances of StringBuilder quickly.

Despite troubleshooting by restarting Android Studio and updating all components, the issue persists.

Let’s dive deeper into how to solve this issue effectively.

The Solution

Resetting the Debugger Setting

Fortunately, this issue can be resolved by adjusting a certain setting in Android Studio. The key step is as follows:

Navigate to Settings:

Open Android Studio and go to File > Settings. If you are using macOS, it would be Android Studio > Preferences.

Locate Debugger Options:

Within the settings, find the section labelled Build, Execution, Deployment. Click on it to expand the options.

Next, click on Debugger, and then select Data Views. Under this section, you will find Java options.

Enable Object View:

Look for the option titled "Enable 'toString()' object view:".

Activate this option by selecting it.

Testing the Fix

After making this adjustment, it's time to test if the issue has been resolved:

Place a breakpoint in your code where the StringBuilder is used.

Run your application in Debug mode and examine the debugger panel again.

You should now see the StringBuilder content displayed as a single line, restoring the ease with which you can compare different instances quickly.

Conclusion

By simply enabling the toString() object view in your debugger settings, you can enhance your debugging efficiency in Android Studio. This solution not only addresses individual frustration but also improves your overall workflow. Remember to share this tip with fellow developers who might be facing a similar obstacle, as it could save them valuable time.

If you continue to encounter problems or have additional questions, don’t hesitate to reach out to the community or explore other settings. Happy coding!