In XCode, in the project navigator, right click Libraries ➜ Add Files to [your project's name]
Go to node_modules ➜ react-native-qy-library and add RNQyLibrary.xcodeproj
In XCode, in the project navigator, select your project. Add libRNQyLibrary.a to your project's Build Phases ➜ Link Binary With Libraries
Run your project (Cmd+R)<
Android
Open up android/app/src/main/java/[...]/MainActivity.java
Add import com.qy.RNQyLibraryPackage; to the imports at the top of the file
Add new RNQyLibraryPackage() to the list returned by the getPackages() method
Append the following lines to android/settings.gradle:
include ':react-native-qy-library'
project(':react-native-qy-library').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-qy-library/android')
Insert the following lines inside the dependencies block in android/app/build.gradle:
compile project(':react-native-qy-library')
Usage
import RNQyLibrary from 'react-native-qy-library';
// TODO: What to do with the module?
RNQyLibrary;