Requirements:
0. git for patch
1. JDK for jarsigner
2. Apktools 2.3.2 for decompile and build

Step 
1. git clone this project
2. download radikojp for android into project folder
3. java -jar apktools.jar d <Apk File>  -o build
4. apply patch
5. java -jar apktools.jar b build
6. cd build/dist/ 
7. keytool -genkey -keystore fake.keystore -alias fake  -storepass 123456 -dname "CN=fake" -keypass 123456  -validity 36500
8. jarsigner -keystore fake.keystore -storepass 123456 -signedjar   <generated_apk>  <generated_signed_apk> fake

Bonus:Automatic radiko android dynamic library patcher
see parser.py