com.facebook.react.ReactInstanceManager Java Exaples

Source File: MainActivity.java From react-native-android-activity with MIT License

7 votes

/**
 * Demonstrates how to add a custom option to the dev menu.
 * https://stackoverflow.com/a/44882371/3968276
 * This only works from the debug build with dev options enabled.
 */
@Override
@CallSuper
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    MainApplication application = (MainApplication) getApplication();
    ReactNativeHost reactNativeHost = application.getReactNativeHost();
    ReactInstanceManager reactInstanceManager = reactNativeHost.getReactInstanceManager();
    DevSupportManager devSupportManager = reactInstanceManager.getDevSupportManager();
    devSupportManager.addCustomDevOption("Custom dev option", new DevOptionHandler() {
        @Override
        public void onOptionSelected() {
            if (NotificationManagerCompat.from(MainActivity.this).areNotificationsEnabled()) {
                Toast.makeText(MainActivity.this, CUSTOM_DEV_OPTION_MESSAGE, Toast.LENGTH_LONG).show();
            } else {
                AlertDialog dialog = new AlertDialog.Builder(MainActivity.this).create();
                dialog.setTitle("Dev option");
                dialog.setMessage(CUSTOM_DEV_OPTION_MESSAGE);
                dialog.show();
            }
        }
    });
}

Source File: BackgroundService.java From react-native-gcm-android with MIT License

6 votes

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.d(TAG, "onStartCommand");

    mReactInstanceManager = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setBundleAssetName("index.android.bundle")
            .setJSMainModuleName("index.android")
            .addPackage(new MainReactPackage())
            .addPackage(new GcmPackage(intent))
            .addPackage(new NotificationPackage(null))
            .setUseDeveloperSupport(getBuildConfigDEBUG())
            .setInitialLifecycleState(LifecycleState.RESUMED)
            .build();
    mReactInstanceManager.createReactContextInBackground();

    return START_NOT_STICKY;
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesPackage(getJSIModulePackage())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesPackage(getJSIModulePackage())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: ActivityStarterModule.java From react-native-android-activity with MIT License

6 votes

@ReactMethod
void callJavaScript() {
    Activity activity = getCurrentActivity();
    if (activity != null) {
        MainApplication application = (MainApplication) activity.getApplication();
        ReactNativeHost reactNativeHost = application.getReactNativeHost();
        ReactInstanceManager reactInstanceManager = reactNativeHost.getReactInstanceManager();
        ReactContext reactContext = reactInstanceManager.getCurrentReactContext();

        if (reactContext != null) {
            CatalystInstance catalystInstance = reactContext.getCatalystInstance();
            WritableNativeArray params = new WritableNativeArray();
            params.pushString("Hello, JavaScript!");

            // AFAIK, this approach to communicate from Java to JavaScript is officially undocumented.
            // Use at own risk; prefer events.
            // Note: Here we call 'alert', which shows UI. If this is done from an activity that
            // doesn't forward lifecycle events to React Native, it wouldn't work.
            catalystInstance.callFunction("JavaScriptVisibleToJava", "alert", params);
        }
    }
}

Source File: ReactFragment.java From react-native-android-fragment with Apache License 2.0

6 votes

@Override
public void onDestroy() {
    super.onDestroy();
    if (mReactRootView != null) {
        mReactRootView.unmountReactApplication();
        mReactRootView = null;
    }
    if (getReactNativeHost().hasInstance()) {
        ReactInstanceManager reactInstanceMgr = getReactNativeHost().getReactInstanceManager();

        // onDestroy may be called on a ReactFragment after another ReactFragment has been
        // created and resumed with the same React Instance Manager. Make sure we only clean up
        // host's React Instance Manager if no other React Fragment is actively using it.
        if (reactInstanceMgr.getLifecycleState() != LifecycleState.RESUMED) {
            reactInstanceMgr.onHostDestroy(getActivity());
            getReactNativeHost().clear();
        }
    }
}

Source File: ExternalComponentViewControllerTest.java From react-native-navigation with MIT License

6 votes

@Override
public void beforeEach() {
    componentCreator = spy(new FragmentCreatorMock());
    activity = newActivity();
    ec = createExternalComponent();
    reactInstanceManager = Mockito.mock(ReactInstanceManager.class);
    emitter = Mockito.mock(EventEmitter.class);
    childRegistry = new ChildControllersRegistry();
    uut = spy(new ExternalComponentViewController(activity,
            childRegistry,
            "fragmentId",
            new Presenter(activity, Options.EMPTY),
            ec,
            componentCreator,
            reactInstanceManager,
            emitter,
            new ExternalComponentPresenter(),
            new Options())
    );
}

Source File: RestartModule.java From react-native-restart with MIT License

6 votes

private ReactInstanceManager resolveInstanceManager() throws NoSuchFieldException, IllegalAccessException {
    ReactInstanceManager instanceManager = getReactInstanceManager();
    if (instanceManager != null) {
        return instanceManager;
    }

    final Activity currentActivity = getCurrentActivity();
    if (currentActivity == null) {
        return null;
    }

    ReactApplication reactApplication = (ReactApplication) currentActivity.getApplication();
    instanceManager = reactApplication.getReactNativeHost().getReactInstanceManager();

    return instanceManager;
}

Source File: JsLoaderUtil.java From MetroExample with Apache License 2.0

6 votes

public static void createReactContext(Application application, ReactContextCallBack callBack) {
    if (jsState.isDev) {
        if(callBack != null) callBack.onInitialized();
        return;
    }
    final ReactInstanceManager manager = getReactIM(application);
    if (!manager.hasStartedCreatingInitialContext()) {
        manager.addReactInstanceEventListener(new ReactInstanceManager.ReactInstanceEventListener() {
            @Override
            public void onReactContextInitialized(ReactContext context) {
                if (callBack != null) callBack.onInitialized();
                manager.removeReactInstanceEventListener(this);
            }
        });
        manager.createReactContextInBackground();
    } else {
        if (callBack != null) callBack.onInitialized();
    }
}

Source File: RCTUpdate.java From react-native-update with MIT License

6 votes

private void setJSBundle(ReactInstanceManager instanceManager, String latestJSBundleFile) throws IllegalAccessException {
    try {
        JSBundleLoader latestJSBundleLoader;
        if (latestJSBundleFile.toLowerCase().startsWith("assets://")) {
            latestJSBundleLoader = JSBundleLoader.createAssetLoader(getReactApplicationContext(), latestJSBundleFile, false);
        } else {
            latestJSBundleLoader = JSBundleLoader.createFileLoader(latestJSBundleFile);
        }

        Field bundleLoaderField = instanceManager.getClass().getDeclaredField("mBundleLoader");
        bundleLoaderField.setAccessible(true);
        bundleLoaderField.set(instanceManager, latestJSBundleLoader);
    } catch (Exception e) {
        throw new IllegalAccessException("Could not setJSBundle");
    }
}

Source File: MainActivity.java From react-native-android-audio-streaming-aac with MIT License

6 votes

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mReactRootView = new ReactRootView(this);

    mReactInstanceManager = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setBundleAssetName("index.android.bundle")
            .setJSMainModuleName("index.android")
            .addPackage(new MainReactPackage())
            .addPackage(new AACStreamingPackage(MainActivity.class))      // <------- add package
            .setUseDeveloperSupport(BuildConfig.DEBUG)
            .setInitialLifecycleState(LifecycleState.RESUMED)
            .build();

    mReactRootView.startReactApplication(mReactInstanceManager, "example", null);

    setContentView(mReactRootView);
}

Source File: MainActivity.java From rn-camera-roll with MIT License

6 votes

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mReactRootView = new ReactRootView(this);

    mReactInstanceManager = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setBundleAssetName("index.android.bundle")
            .setJSMainModuleName("index.android")
            .addPackage(new MainReactPackage())

            // Add Camera Roll for android
            .addPackage(new CameraRollPackage())
            .setUseDeveloperSupport(BuildConfig.DEBUG)
            .setInitialLifecycleState(LifecycleState.RESUMED)
            .build();

    mReactRootView.startReactApplication(mReactInstanceManager, "example", null);

    setContentView(mReactRootView);
}

Source File: RootPresenter.java From react-native-navigation with MIT License

6 votes

public void setRoot(ViewController root, Options defaultOptions, CommandListener listener, ReactInstanceManager reactInstanceManager) {
    layoutDirectionApplier.apply(root, defaultOptions, reactInstanceManager);
    rootLayout.addView(root.getView(), matchParentWithBehaviour(new BehaviourDelegate(root)));
    Options options = root.resolveCurrentOptions(defaultOptions);
    root.setWaitForRender(options.animations.setRoot.waitForRender);
    if (options.animations.setRoot.waitForRender.isTrue()) {
        root.getView().setAlpha(0);
        root.addOnAppearedListener(() -> {
            if (root.isDestroyed()) {
                listener.onError("Could not set root - Waited for the view to become visible but it was destroyed");
            } else {
                root.getView().setAlpha(1);
                animateSetRootAndReportSuccess(root, listener, options);
            }
        });
    } else {
        animateSetRootAndReportSuccess(root, listener, options);
    }
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesPackage(getJSIModulePackage())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesPackage(getJSIModulePackage())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setUIImplementationProvider(getUIImplementationProvider())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesProvider(getJSIModulesProvider())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: NavigationModule.java From react-native-navigation with MIT License

6 votes

public NavigationModule(ReactApplicationContext reactContext, ReactInstanceManager reactInstanceManager, JSONParser jsonParser, LayoutFactory layoutFactory) {
    super(reactContext);
    this.reactInstanceManager = reactInstanceManager;
    this.jsonParser = jsonParser;
    this.layoutFactory = layoutFactory;
    reactContext.addLifecycleEventListener(new LifecycleEventListenerAdapter() {
        @Override
        public void onHostResume() {
            eventEmitter = new EventEmitter(reactContext);
            navigator().setEventEmitter(eventEmitter);
            layoutFactory.init(
                    activity(),
                    eventEmitter,
                    navigator().getChildRegistry(),
                    ((NavigationApplication) activity().getApplication()).getExternalComponents()
            );
        }
    });
}

Source File: QtalkServiceExternalRNViewInstanceManager.java From imsdk-android with MIT License

6 votes

public static ReactInstanceManager getInstanceManager(Activity mActivity, String bundleName, String Entrance) {

        if(lastBundleName.equals(bundleName)){
            if (mReactInstanceManager == null && !buildBundle(mActivity, bundleName, Entrance)) {
                // build error
                mReactInstanceManager = null;
            }
        }else{
            buildBundle(mActivity, bundleName, Entrance);
            lastBundleName = bundleName;
        }


//        if (mReactInstanceManager == null && !buildBundle(mActivity, bundleName, Entrance)) {
//            // build error
//            mReactInstanceManager = null;
//        }

        return mReactInstanceManager;
    }

Source File: NavigationReactNativeHost.java From react-native-navigation with MIT License

6 votes

protected ReactInstanceManager createReactInstanceManager() {
    ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
            .setApplication(getApplication())
            .setJSMainModulePath(getJSMainModuleName())
            .setUseDeveloperSupport(getUseDeveloperSupport())
            .setRedBoxHandler(getRedBoxHandler())
            .setJavaScriptExecutorFactory(getJavaScriptExecutorFactory())
            .setInitialLifecycleState(LifecycleState.BEFORE_CREATE)
            .setJSIModulesPackage(getJSIModulePackage())
            .setDevBundleDownloadListener(getDevBundleDownloadListener());

    for (ReactPackage reactPackage : getPackages()) {
        builder.addPackage(reactPackage);
    }

    String jsBundleFile = getJSBundleFile();
    if (jsBundleFile != null) {
        builder.setJSBundleFile(jsBundleFile);
    } else {
        builder.setBundleAssetName(Assertions.assertNotNull(getBundleAssetName()));
    }
    return builder.build();
}

Source File: QTalkSearchRNViewInstanceManager.java From imsdk-android with MIT License

5 votes

public static ReactInstanceManager getInstanceManager(Application application){

        if(mReactInstanceManager == null && !buildBundle(application)){
            // build error
        }

        return mReactInstanceManager;
    }

Source File: QTalkSearchRNViewOldInstanceManager.java From imsdk-android with MIT License

5 votes

public static ReactInstanceManager getInstanceManager(Application application) {

        if (mReactInstanceManager == null && !buildBundle(application)) {
            // build error
        }
        ;

        return mReactInstanceManager;
    }

Source File: QTalkSearchRNViewInstanceManager.java From imsdk-android with MIT License

5 votes

public static boolean buildBundle(Application application){
    boolean is_ok = false;

    try {
        ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
                .setApplication(application)
                .setJSMainModulePath("index")
                .addPackage(new MainReactPackage())
                .addPackage(new SearchReactPackage())
                .addPackage( new SvgPackage())
                .addPackage(new RNI18nPackage())
                .setUseDeveloperSupport(CommonConfig.isDebug)
                .setInitialLifecycleState(LifecycleState.RESUMED);

        String localBundleFile = getLocalBundleFilePath(application);

        File file = new File(localBundleFile);
        if (file.exists()) {
            // load from cache
            builder.setJSBundleFile(localBundleFile);
        } else {
            // load from asset
            builder.setBundleAssetName(JS_BUNDLE_NAME);
        }

        mReactInstanceManager = builder.build();

        is_ok = true;
    }catch (Exception e){

    }

    return is_ok;
}

Source File: QTalkSearchRNViewOldInstanceManager.java From imsdk-android with MIT License

5 votes

public static boolean buildBundle(Application application) {
    boolean is_ok = false;

    try {
        ReactInstanceManagerBuilder builder = ReactInstanceManager.builder()
                .setApplication(application)
                .setJSMainModulePath("index.android")
                .addPackage(new MainReactPackage())
                .addPackage(new SearchReactPackage())
                .addPackage(new SvgPackage())
                .addPackage(new RNI18nPackage())
                .setUseDeveloperSupport(CommonConfig.isDebug)
                .setInitialLifecycleState(LifecycleState.RESUMED);

        String localBundleFile = getLocalBundleFilePath(application);

        File file = new File(localBundleFile);
        if (file.exists()) {
            // load from cache
            builder.setJSBundleFile(localBundleFile);
        } else {
            // load from asset
            builder.setBundleAssetName(JS_BUNDLE_NAME);
        }

        mReactInstanceManager = builder.build();

        is_ok = true;
    } catch (Exception e) {

    }

    return is_ok;
}

Source File: ReactView.java From react-native-navigation with MIT License

5 votes

public ReactView(final Context context, ReactInstanceManager reactInstanceManager, String componentId, String componentName) {
	super(context);
	this.reactInstanceManager = reactInstanceManager;
	this.componentId = componentId;
	this.componentName = componentName;
	jsTouchDispatcher = new JSTouchDispatcher(this);
}

Source File: RootPresenterTest.java From react-native-navigation with MIT License

5 votes

@Override
public void beforeEach() {
    reactInstanceManager = Mockito.mock(ReactInstanceManager.class);
    Activity activity = newActivity();
    rootContainer = new CoordinatorLayout(activity);
    root = new SimpleViewController(activity, new ChildControllersRegistry(), "child1", new Options());
    animator = spy(createAnimator(activity));
    layoutDirectionApplier = Mockito.mock(LayoutDirectionApplier.class);
    uut = new RootPresenter(animator, layoutDirectionApplier);
    uut.setRootContainer(rootContainer);
    defaultOptions = new Options();
}

Source File: ExternalComponentViewController.java From react-native-navigation with MIT License

5 votes

public ExternalComponentViewController(Activity activity, ChildControllersRegistry childRegistry, String id, Presenter presenter, ExternalComponent externalComponent, ExternalComponentCreator componentCreator, ReactInstanceManager reactInstanceManager, EventEmitter emitter, ExternalComponentPresenter externalComponentPresenter, Options initialOptions) {
    super(activity, childRegistry, id, presenter, initialOptions);
    this.externalComponent = externalComponent;
    this.componentCreator = componentCreator;
    this.reactInstanceManager = reactInstanceManager;
    this.emitter = emitter;
    this.presenter = externalComponentPresenter;
}

Source File: Navigator.java From react-native-navigation with MIT License

5 votes

public void setRoot(final ViewController viewController, CommandListener commandListener, ReactInstanceManager reactInstanceManager) {
    previousRoot = root;
    modalStack.destroy();
    final boolean removeSplashView = isRootNotCreated();
    if (isRootNotCreated()) getView();
    root = viewController;
    rootPresenter.setRoot(root, defaultOptions, new CommandListenerAdapter(commandListener) {
        @Override
        public void onSuccess(String childId) {
            if (removeSplashView) contentLayout.removeViewAt(0);
            destroyPreviousRoot();
            super.onSuccess(childId);
        }
    }, reactInstanceManager);
}

Source File: LayoutDirectionApplier.java From react-native-navigation with MIT License

5 votes

public void apply(ViewController root, Options options, ReactInstanceManager instanceManager) {
    if (options.layout.direction.hasValue() && instanceManager.getCurrentReactContext() != null) {
        root.getActivity().getWindow().getDecorView().setLayoutDirection(options.layout.direction.get());
        I18nUtil.getInstance().allowRTL(instanceManager.getCurrentReactContext(), options.layout.direction.isRtl());
        I18nUtil.getInstance().forceRTL(instanceManager.getCurrentReactContext(), options.layout.direction.isRtl());
    }
}

Source File: LayoutFactoryTest.java From react-native-navigation with MIT License

5 votes

@Override
public void beforeEach() {
    uut = new LayoutFactory(mock(ReactInstanceManager.class));
    uut.init(
            newActivity(),
            Mockito.mock(EventEmitter.class),
            new ChildControllersRegistry(),
            new HashMap<>()
    );
}

com.facebook.react.ReactInstanceManager Java Examples