Get previous code in android studio

Question

Hey i have this issue where I first created an app, put it on playstore and then i tried to integrate google adsense into it later. I had to change some code in the build file which has now completely ruined my project and i can't even revert back my changes since i had closed android studio.

I've spent hours trying to fix the code but it just wouldnt work. I need to see what have i done wrong. In the previous version it was working fine. Is there any way to see the code in the previous apk? or reset changes or anything like that in android studio?

Impressive some people still does not use VCS these days. Please read: https://en.wikipedia.org/wiki/Version_control and learn from your failure. — Marcin Orlowski, May 28 '16 at 18:26
My suggestion -> Try the free versions of bitbucket or use github to store your project in safe place.. — Ranjithkumar, May 28 '16 at 19:05

score 21 · Accepted Answer · answered May 28 '16 at 18:51

21

Android Studio has a code history feature which allows you to see previous versions of a corresponding file. Just right click on a file in the IDE's file explorer and you will see this option.

answered May 28 '16 at 18:51

Ukubu

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Could you elaborate on that. Where do i right click? – AxeManTOBO May 28 '16 at 18:58
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You, sir, are a LIFE SAVER – Shounak Ray Apr 02 '19 at 06:35

Ozgur · Answer 2 · 2016-05-28T19:01:53.297

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Right click the file in android studio, Local History -> Show History. Maybe you can see old version of file.

If not, here is the certain solution: download old apk from Play store, use Dex2jar to decompile old .dex file and see codes with JD-GUI.

Or you can use Jadx too.

edited May 28 '16 at 19:01

answered May 28 '16 at 18:59

Ozgur

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Right click on which file? – AxeManTOBO May 28 '16 at 19:01
Your possible Java files that contains problems. – Ozgur May 28 '16 at 19:02
@AxeManTOBO Android studio -> Right click on your project folder -> you can see local history – Ranjithkumar May 28 '16 at 19:03
@OzgurGUL for decompiling easy process check my answer - http://stackoverflow.com/a/27981520/3879847 – Ranjithkumar May 28 '16 at 19:06
@Ranjith Kumar, Sometime learning the hard way is better :) – Ozgur May 28 '16 at 19:08
but if we get the same output in easy way why we stay with hard way?? – Ranjithkumar May 28 '16 at 19:23
@RanjithKumar is there any way to see the changes in the build.gradle? The ways you've mentioned in the answer dont have a way to get gradle file of the app – AxeManTOBO May 28 '16 at 19:23
@AxeManTOBO yes.. that give the partial files(java,xml,manifest) only.. not entire project.. – Ranjithkumar May 28 '16 at 19:25
@AxeManTOBO but local history is good idea.. r u try this? – Ranjithkumar May 28 '16 at 19:26
Thank you all so much. Checking local history worked for me – AxeManTOBO May 28 '16 at 19:39
You, sir, are a LIFE SAVER. – Shounak Ray Apr 02 '19 at 06:35
Glad it helped Mr.Shounak Ray ;) – Ozgur Apr 02 '19 at 08:05
Wait can they see my code that easily? I see the power of obfuscators now! – Kwnstantinos Nikoloutsos Nov 15 '19 at 12:31

score 1 · Answer 3 · answered May 28 '16 at 18:47

You could try googling for an .apk decompiler and try to decompile your old .apk. You may get mixed results but if you are desperate that is one option.

But from now on, make sure to use git for source control in your apps. Android Studio makes it really easy to use git.

Get previous code in android studio

3 Answers3