1- Build release :
ionic cordova build android –prod –release
2- Generate release key :
keytool -genkey -v -keystore my-release-key.keystore -alias releaseKeyStore -keyalg RSA -keysize 2048 -validity 10000
Add password to your key ,ex: 123456
3- Sign your app with the generated key :
jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore my-release-key.keystore platforms/android/app/build/outputs/apk/release/app-release-unsigned.apk releaseKeyStore
4- Compress your app:
/PATH-TO/Android/sdk/build-tools/23.0.3/zipalign -v 4 platforms/android/app/build/outputs/apk/release/app-release-unsigned.apk app.apk
5- Ready to upload :
Upload to google play store or install it directly on the device .
