How to modify IP & port use react-native Android?

Question

I used the react-native Android demo project AwesomeProject and within the project I executed:

react-native start

In a second terminal:

Answer 1

On Mac :

1. go To Wifi
2. Open network preferences
3. Wi-Fi is connected to {wifi name} and has the IP address {xxx.xxx.x.x}.
4. Get your ip address .
5. Go to application on devices
6. go to Dev Setting
7. Tap to Debug server host & port for device
8. Fill your IP address and port is 8081 (example ipaddress:8081) .