To prevent rotation of screen with React Native, we can use the orientation field in your app.json file if our app is built with Expo.

For example, we write

{
  "expo": {
    "name": "My app",
    "slug": "my-app",
    "sdkVersion": "21.0.0",
    "privacy": "public",
    "orientation": "portrait"
  }
}

to set the orientation to portrait.