How to compile and run react-native application from terminal

Readme.md

To run on ios:

1. Install XCode (recommended) or XCode command line tools by xcode-select --install
2. Into XCode settings, go to "Downloads" tab and download iOS 9.2 emulator
3. Compile native app and run it on simulator via npm run ios

To run on Android:

1. Set up Android environment
2. Create emulator via npm run android-emulator-create
3. Run emulator via npm run android-emulator
4. Compile native code and run it on emulator via npm run android

package.json

{
  ...
  "scripts": {
    "start": "./node_modules/react-native-cli/index.js start",
    "ios-build": "xcodebuild  -project ios/YourAppName.xcodeproj -scheme YourAppName -sdk iphonesimulator -destination platform='iOS Simulator',name='iPhone 6 Plus' -derivedDataPath ios/build",
    "ios-launch-sim": "xcrun instruments -w 'iPhone 5s (9.2)'",
    "ios-install-app": "xcrun simctl install booted ios/build/Build/Products/Debug-iphonesimulator/YourAppName.app",
    "ios-launch-installed": "xcrun simctl launch booted org.yourcompany.YourAppName",
    "ios": "npm run ios-build && npm run ios-launch-sim || npm run ios-install-app && npm run ios-launch-installed",
    "android": "./node_modules/react-native-cli/index.js run-android",
    "android-emulator": "emulator -avd YourAppName -scale 0.4 -gpu on -memory 2048",
    "android-emulator-create": "android create avd -n YourAppName -t 1 -b x86 --skin 1080x1920 --device 'Nexus 5'",
    "android-emulator-delete": "android delete avd -n YourAppName"
  }
  ...
}

For now react-native run-ios does the same thing

how to change ios devices??

react-native run-ios --simulator="iPhone 7 Plus"

will run in 7+ simulator, for example

You can use --device for running it on your device. For example react-native run-ios --device "Thomas Chamberlain's iPhone".