Sunday, March 11, 2012

Decoding Android .apk to source code -- easy steps !!!



procedure to decode .apk files:

step 1:

make a new folder and put .apk file (which you want to decode) now rename this .apk file with extension .zip (eg:rename from filename.apk to filename.apk.zip) and save it..now you get classes.dex files etc...at this stage you are able to see drawable but not xml and java file...so cont...

step 2:

 now extract this zip apk file in the same folder(in this eg or case NEW FOLDER). now dowmload dex2jar from this link http://code.google.com/p/dex2jar/ and extract it to the same folder (in this case NEW FOLDER).....now open command prompt and reach to that folder (in this case NEW FOLDER)....after reaching write "dex2jar classes.dex" and press enter.....now you get classes.dex.dex2jar file in the same folder......now download java decompiler from http://java.decompiler.free.fr/?q=jdgui and now double click on jd-gui and click on open file then open classes.dex.dex2jar file from that folder...now you get class file...save all these class file (click on file then click "save all sources" in jd-gui)..by src name....at this stage you get source...but xml files are still unreadable...so cont...

step 3:

now open another new folder and put these files
  1. put .apk file which you want to decode
  2. download apktool v1.x AND apktool install window using google and put in the same folder
  3. download framework-res.apk file using google and put in the same folder
  4. Open a command window
  5. Navigate to the root directory of APKtool and type the following command: apktool if framework-res.apk
  6. apktool d "fname".apk ("fname" denotes filename which you want to decode)
now you get a file folder in that folder and now you can easily read xml files also.

step 4:

it's not any step just copy contents of both folder(in this case both new folder)to the single one
and now enjoy wid source code...

 

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4 comments:

  1. MSKJune 15, 2012 at 1:06 PM

    for queries and clarifications contact: mskdoss@gmail.com

    ReplyDelete
  2. AnonymousJune 11, 2013 at 5:48 AM

    hi,

    i need urgent help regarding, how to get complete code from .apk file. i have not got the complete code.
    Email: sahilk@nascenture.com

    regards,
    sahil k

    ReplyDelete
  3. MSKJune 11, 2013 at 10:00 AM

    Have you tried the steps above?

    ReplyDelete
  4. SonaliOctober 10, 2013 at 5:36 AM

    Hi msk,
    First of all thanks a lot for this great tutorial, such an amazing much needed, so useful keep it up God Bless You
    Using this Tutorial, I am able to get Java, XML files, resources, drawables, manifest etc.
    Actually i am facing some issues in Java code, in short getting many Errors like:
    1. The type of the expression must be an array type but it resolved to Object
    2. Type mismatch: cannot convert from int to LinearLayout
    3. Type mismatch: cannot convert from LinearLayout to int
    4. The method setVisibility(int) in the type View is not applicable for the arguments (LinearLayout)
    5. Type mismatch: cannot convert from int to boolean
    6. – monitorenter cannot be resolved to a variable
    7. – Syntax error, insert “AssignmentOperator Expression” to complete Expression
    8. The label label175 is missing
    9. The local variable localObject may not have been initialized
    Thanks again, i will wait for your reply…

    ReplyDelete

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