repackage android application

 

1. decompile the application file

apktool d -o dianping/ dianping.apk
 

2. modify the resources / smali assembly codes as you wish.

 

diff -bur 51buy/smali/ 51buy_new/smali/

 

3. repackage the application

apktool b -o dianping_new.apk dianping/

 

4. sign the repackaged apk file
1. Generate key store (only once)

keytool -genkey -v -keystore /d/android/keystore -alias android -keyalg RSA -keysize 2048

http://www.sslshopper.com/article-most-common-java-keytool-keystore-commands.html

 

2. Sign the apk file

jarsigner.exe -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore /d/android/keystore dianping_new.apk android

 

5. Install the application and have fun.