change app name in android in recat natie code example

Example: react native change app name

Android
1. Modify displayName in app.json file
2. Modify app_name in android/app/src/main/res/values/strings.xml
3. cd android -> ./gradlew clean
4. cd .. -> react-native run-android
IOS
1. Modify Display Name in Project target (General Tab) 
2. Or in info.plist file string value of CFBundleDisplayName key