[Q] Extracting certain files from .obb - Android Q&A, Help & Troubleshooting

Hello. Noobie here.
I really wanted to get the artworks from the game Deemo. It seems that they're not in the .apk file, so I tried the .obb file. I changed the extension to .zip, but when I opened it up, there wasn't any image files. All I see is the "file" extension name. I was just wondering if there are any ways to extract image files from an .obb file? Thanks in advance.

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Extract *.apk?

If I have a *.apk that I download, is there anyway to backup/extract it?
The apk is really just a ZIP file. Try renaming the file to whatever.apk.zip and open using your favorite ZIP utility. You should be able to view all the contents. Resources (such as images) can be extracted. The java code is compiled into a .dex file so you can't view the raw code, but there are utilities (like this one) to decompile it: http://dedexer.sourceforge.net/
ghostfaced said:
The apk is really just a ZIP file. Try renaming the file to whatever.apk.zip and open using your favorite ZIP utility. You should be able to view all the contents. Resources (such as images) can be extracted. The java code is compiled into a .dex file so you can't view the raw code, but there are utilities (like this one) to decompile it: http://dedexer.sourceforge.net/
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Right but how do I find the *.apk if I am downloading it off of the market?
apps are located in data/app/
There are also various apps in the market that will backup apps.
I use appmonster incedently.
7zip can extract and view contents of an apk without renaming.
backup and reinstalling apps....
view the first link in my signature.
I used MyBackup Pro to do a backup of my apps onto the sd card, then I used ASTRO file manager to navigate to /sdcard/rerware/MyBackup/AllAppsBackups where I found the file LastBackupApps.zip. I then used androzip or something similar to unzip that file and it contained the apk for every one of the apps I backed up.
how to extract .apk.p files
ghostfaced said:
The apk is really just a ZIP file. Try renaming the file to whatever.apk.zip and open using your favorite ZIP utility. You should be able to view all the contents. Resources (such as images) can be extracted. The java code is compiled into a .dex file so you can't view the raw code, but there are utilities (like this one) to decompile it: http://dedexer.sourceforge.net/
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I have a zip file with .apk.p files in it which are exracted with package_extract_file in the updater script. Is there a way to manually extract these, since renaming to .zip doesn't help if I open them with any unzipper program?
Thanks
lxrose said:
I have a zip file with .apk.p files in it which are exracted with package_extract_file in the updater script. Is there a way to manually extract these, since renaming to .zip doesn't help if I open them with any unzipper program?
Thanks
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I believe the files you are referring to - the files ending in ".p" - are "patch" files. They only appear in the OTA download .zip file, and they are worthless to you. They are not complete files, but just enough data to patch the corresponding 1.5 app .apk so that it turns into the 2.1 version.
If you want the complete .apk files which they correspond to, just download the Leak-V3 .zip file, extract the "system.img" file, and then unpack that file using the "unyaffs" utility (search for it, you'll find it at code.Google.com).
bftb0
bftb0 said:
I believe the files you are referring to - the files ending in ".p" - are "patch" files. They only appear in the OTA download .zip file, and they are worthless to you. They are not complete files, but just enough data to patch the corresponding 1.5 app .apk so that it turns into the 2.1 version.
If you want the complete .apk files which they correspond to, just download the Leak-V3 .zip file, extract the "system.img" file, and then unpack that file using the "unyaffs" utility (search for it, you'll find it at code.Google.com).
bftb0
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Thanks for the info. I thought I can update the apk files manually, because from recovery it doesn't work (it is a rooted image, so signature not accepted) and there are some fixes in the new update that I wanted to give a chance.
Unable to install ddx1.14.jar in my HTC wildire
I hve downloaded dexeder.jar file in to my SD card. but i can't install it in my HTC wildfire...
it shows an error...
"ddx1.14.jar cannot be installed because critical information is missing from the application file (MIDlet-Name). Please contact the application provider for more information."
Help me Pls..... Thanks in advance.....
apk download
did you search for the apk online?

Extracting Certain Files from APK's

hey all, i was just wondering if anyone knew how to extract some files from an apk?
specifically, i like riptide gp's background music and was wondering if anyone knew how to extract those music files from the apk or something. let me know! thanks!
I already tried opening the apk on both my computer and NT and couldn't find any music files anywhere... starting to think its not possible, but it can't be because in order for a game to have music its gotta have music files somewhere in the installation file just like any other game on any platform...
Just to get the most basic question out of the way, so sorry if I seem pedantic, but did you just change the extension of the .apk to .zip or did you use APKTool to unpack the .apk?
SG Pillar said:
Just to get the most basic question out of the way, so sorry if I seem pedantic, but did you just change the extension of the .apk to .zip or did you use APKTool to unpack the .apk?
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i've already tried extracting the apk by conventional means, aka using winrar to extract the contents, but no luck in finding any files resembling that of a music file type. i've also tried apktool but after decompiling the apk, i couldn't find any music files either...
after decompiling through apktool i just saw a lot of .smali files. there was one files called base.apf but not sure how to decompile that....
Check out apktool to extract apks. I've used it on system files to open them up and edit what's inside.
https://code.google.com/p/android-apktool/

Extracted images from an android games .Obb file won't open

I extracted an .obb file from an android game and have access to all .mp3's (which open fine). I just can't get any images to open.
I used Apktool to extract the .obb from the .apk
Any help would be appreciated.

How to open and extract .bin files on android?

Hi i been wondering how to properly extract .bin files only using android. I tried to extract one psx game which is in bin format. I tried apps like rar, 7zip zarchiver and similiar extract apps with no luck. Any help. Thanks and srry for english
Any Answer ?!

How do you extract images from mbn file?

So I extracted an apk file and it gave a bunch of mbn files but I don't know how to open them or rip images from those files. How can I extract images from the mbn file? the apk is a game so I'm wanting to rip sprites from it

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