apktool decompile compile sign

1. apk tool and script download :

http://code.google.com/p/android-apktool/

2. apktool usage:

decompile : apktool d xxx.apk

compile : apktool b xxx

3. sign:

jarsigner -verbose -keystore platform.keystore -storepass android -signedjar FaceLock_signed.apk FaceLock.apk androiddebugkey