Steps To Modify .APK Files

Do you have to customize an .APK file? For those uninitiated, an .APK file is a one which you download here on your mobile and then you open it for modification, if any. It could be that one needs to replace an image on the app or that he is not happy with the styling. Well, whatever be the reason behind modification, the post below offers a step by step guide on editing .APK files.

Step 1

Change resource in .apk

Open .apk file. You can take the help of WinRAR here. If it fails to work, you may have to rename your file extension to .zip from .apk.

Now, you will alter resources in archive the way you want to. Expert developers count on packager tools here that enable one to alter files without extraction. After you have completed the alterations, you will shift to signature files. These files are a crucial aspect of .apk files.

Go to archive and look for the folder names “META-INF”. Then, delete the existent *.SF & *.RSA files.

Step 2

Signing of .apk

It’s to note here Android forbids installation of unsigned application or apk. While developing an Android application in Eclipse, ADT handles all formalities regarding signing of app with default certificate- prior to its installation in the device. ADT is the acronym for “Android Developer Tools”.

It’s to note here, .apk signing can be done through the steps given below-

  • Creation of the certificate
  • Singing of .apk with created certificate

Step 3

Installation of .apk

After signing, install .apk on your smart device. You will have to use “adbcommand” on command line for the installation. Connect your smart device to PC through USB cable.

Now, execute the command below-

  • adb install <appName>

If everything is okay, you will receive a success message. Finally, you are done.