apply plugin: 'com.android.application'
 
android {
  ...
}
 
dependencies {
  ...
+ compile project(':react-native-open-settings')
}

include ':react-native-open-settings'
project(':react-native-open-settings').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-open-settings/android')

package com.myapp;
 
....
import com.opensettings.OpenSettingsPackage 
 
public class MainActivity extends extends ReactActivity {
 
    @Override
    protected List<ReactPackage> getPackages() {
        return Arrays.<ReactPackage>asList(
                new MainReactPackage(),
                new OpenSettingsPackage()
        );
    }
    ...
}