albertaleksieiev / react-native-android-extras

Passing extras from native to React Native

React Native Android Extras

Problem

You cannot pass extras from Android to React Native JS module, by using only builder. But IOS have this ability, https://facebook.github.io/react-native/docs/communication-ios.html.

Usage

JavaScript

import { NativeModules } from 'react-native'
import {
    Text,
    View,
} from 'react-native';
class HelloWorld extends React.Component{
    render(){
         var  { page_name } = NativeModules.ReactIntentExtras;
        //TODO Initialize store or something with extras
       
        return (
            <Text>
                {page_name}
            </Text>
        );
    }
}
AppRegistry.registerComponent('HelloWorld', () => HelloWorld);

Java

//https://facebook.github.io/react-native/docs/integration-with-existing-apps.html
public class MyReactActivity extends Activity implements DefaultHardwareBackBtnHandler {
    private ReactRootView mReactRootView;
    private ReactInstanceManager mReactInstanceManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        //Init extras
        HashMap<String,Object> extras = new HashMap<>();
        extras.put("page_name","Football team");

        mReactRootView = new ReactRootView(this);
        mReactInstanceManager = com.braincarya.react.android.ReactInstanceManager.builder()
                .setExtras(extras)
                .setApplication(getApplication())
                .setBundleAssetName("index.android.bundle")
                .setJSMainModuleName("index.android")
                .addPackage(new MainReactPackage())
                .setUseDeveloperSupport(BuildConfig.DEBUG)
                .setInitialLifecycleState(LifecycleState.RESUMED)
                .build();
        mReactRootView.startReactApplication(mReactInstanceManager, "HelloWorld", null);

        setContentView(mReactRootView);
    }

    @Override
    public void invokeDefaultOnBackPressed() {
        super.onBackPressed();
    }
    
    //TODO initialize all methods
}