How to make .APK from file have been extracted

[MR.Volkf]

i have been extract the Whatsapp.apk into file to edit some of file and i now i want to make it back to APK, i have been trying to make it .rar and then rename it to.apk but always error,thank you alot

 

[ivAnash]

Repack it to .zip and then rename it to. apk.. It'll work as a system app but if u want it to work like a regular downloaded app,u have to sign the apk..

 

[wee2wee]

you will need a signapk program to sign it...check here http://forum.xda-developers.com/showthread.php?t=1241952&page=2

 

[MR.Volkf]

done i found the trick