How to sign the apk from Keystore file

Prerequisites: 

System should have java pre installed. Probably any system which has already created the android apk.

  

1.       Open command prompt

2.       Navigate to root folder of the application.

3.       Build APK in release mode

       ionic build android --release or android build

4.       Run below command to get the alias name, if you have not have it already

5.       Copy keystore password from the password.txt available in SiteManager>Certificate

6.       Run the below command. 

7.       Apk will be signed in the same name as the source file. You can check it by comparing the date modified.