Develop Reference

android studio projects getting corrupted after a restart

After upgrading to arctic fox, I faced this issue. Opened a project I worked previously with older version of android studio was fine, but after restart its files became full with gibberish values. I thought its a hardware failure issue. But this happening again today with other projects, so I want a solution.
After working, closing and reopening the project the files contents became corrupted/changed:
File contents changed on previous project, showing difference with git:
ArcticFoxPatch2, Projects are built with gradle 7.0.2.
Solutions tried:
I have tried potential solution of invalidating cache and restart, but the files stays same.
Android studio warns and suggest wrong encoding but reloading with multiple other encoding did not resolve file contents.
What should be a solution?
Should I change hardware, eg ssd? or downgrade android studio?

Please run android studio like this.
Click Android Studio and click right button on mouse, then click "Run as Administrator".
Hope it helpful for you.

Android Studio Bumblebee emulator not updating my changes

I am using macbook with M1 chip. I am using Android Studio Bumblebee | 2021.1.1 Canary 3 version. When I run the project for the first time, there is no problem. When I debug for the second time, the changes I made in the codes are not visible in the emulator. I can't see the changes in logcat. What should I do?
thanks

I solved the problem.
"Edit Configurations..." -> Then the option I have shown in the red square needs to be selected.

You can try to go from File to Invalidate Caches / Restart... to empty your cache.
If that doesn't work try to downgrade your version. M1 Chip has problems with Android Studio because it is pretty new. Follow along this answer.

If you are sure it gets compiled and Android Studio installs it without errors you could try these things that worked for me:
Uninstalling the app inside the emulator and then running it again so the app gets reinstalled with your new version.
Also, as it's answered on here. You could also go to Tools -> AVD Manager. Right click on the emulator and then wipe data. This will delate all the data on the device.

android studio - No preview in design tab

I am starting out with android studio. Unfortunately I can not even get started. In the design mode I cannot display a preview. In the picture attached you can see I do not have an option of android device. I assume this is one of the reasons.
Can anyone help me trouble shoot this. I have downloaded nexus 5 and 4 in the AVD manager. their screen resolution is 1080p and 768p - My laptop only has 720p could this be an issue?
Very frustrating as I cannot even play around with it.
Thanks in advance
enter image description here

Check that answer , if this is not work please reinstall your android studio or make sure all important sdk tools are download on your device.

Make sure XML representation of layout is error free.
Try changing the API levels in the design views.
Clean build your project by going to Build > Clean build
Ensure you don’t have any file from SDK that is missing
If everything is proper still if android studio is not able to render your layout invalidate cache and restart android studio by going to File > Invalidate Cache/Restart

Android Studio hangs at fetching documentation

Recently I experienced that Android Studio is hanging a lot. Right in the middle of typing in any editor it will hang and block me from doing anything else for a couple of seconds. Restarting or killing adb wouldn't help.
After a while I realized that this happens if the documentation is being loaded and displayed. This happens mostly for Android documentation, which is quite verbose and also seems to contain images and formatting.
I already tried switching off the Auto-update from source option, but that doesn't change anything.
Any ideas what could cause Android Studio to block while it's loading or displaying (or doing whatever with) the documentation?
I'm using Android Studio 2.1.1, the latest build with the security fix.

you can check this solution: https://stackoverflow.com/a/26149069/2133585
Here's what fixed it for me:
Make sure you have the Documentation package downloaded in SDK Manager.
Exit Studio if it's running.
Delete the file named "jdk.table.xml" located in ~/.AndroidStudioX.Y/config/options/ (remember to take a backup
first!).
Relaunch Android Studio. should work correctly now and it should regenerate the file automatically.
Note:
This worked for me on Ubuntu 14.04 & Android Studio 0.8.11 (EDIT: Several users are reporting this solution also works for
newer versions of Android Studio).
If it still doesn't work, try deleting and re-downloading the Documentation package from inside Android SDK Manager then try the
above steps.
If you're running Windows, the file is located at "%UserProfile%.AndroidStudio\config\options", and if you're running
OS X, it's located at "~/Library/Preferences/AndroidStudio/options"
(credits to #Gero and #Alex Lipov).
Fix still works for AS 2.2.3 and MacOS 10.12.2 Sierra

All Java Files becomes red marked as error. but project build successfully

I am using android studio 1.0. I am developing a small android application. When i was editing the code in one of my java file in android studio, power cut happened.
After power came, i open the android studio and open my project, all files in the java folder marked as red indicationg error.
but the projects build successfully. when i sync with gradle.
it also done successfully. and perfectly runs in the device after launced the app in my phone.. but the red mark not disappear
even i close the project and reopen. If i create new project also, the same things happen again.
i can't understand what's happened. i also tried re install my jdk 1.7
Can anyone help me, how to fix this bug. please give exact solution. i don't like suggestions like to re install android studio

Try to Update to androidstudio 1.2

Close Android Studio
Go to C:\Users\user\\.AndroidStudio2.3\system\caches directory and delete all files.
Restart Android Studio
Done.