remodeling - release mode

1) locate  your jdk bin folder:
  `/usr/libexec/java_home`

2) navigate to your jdk bin folder
   `cd /usr/libexec/java_home`
   
3) to generate a signing key
  `sudo keytool -genkey -v -keystore my-release-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000`
  -- will ask you to add password and information 

4) copy my-release-key.keystore to ~/mobile/app/

5) in main mobile app open android/gradle.properties to edit by adding those lines : 
  ```
    MYAPP_RELEASE_STORE_FILE=my-release-key.keystore
    MYAPP_RELEASE_KEY_ALIAS=my-key-alias
    MYAPP_RELEASE_STORE_PASSWORD=*****
    MYAPP_RELEASE_KEY_PASSWORD=*****
  ```
place values with real one used in step 3

6) open android/app/build.gradle to update it as 
```
  android {
    ...
    defaultConfig { ... }
    signingConfigs {
        release {
            if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
                storeFile file(MYAPP_RELEASE_STORE_FILE)
                storePassword MYAPP_RELEASE_STORE_PASSWORD
                keyAlias MYAPP_RELEASE_KEY_ALIAS
                keyPassword MYAPP_RELEASE_KEY_PASSWORD
            }
        }
    }
    buildTypes {
        release {
            ...
            signingConfig signingConfigs.release
        }
    }
}
```

7) cd android
8) ./gradlew assembleRelease

====> make sure to uninstall your app from device you want to bild the app on it

9) Final run 
  `react-native run-android --variant=release`