exampleApp/android/app/src/main/java/com/exampleapp/newarchitecture/MainApplicationReactNativeHost.java
package com.exampleapp.newarchitecture;
import android.app.Application;
import androidx.annotation.NonNull;
import com.facebook.react.PackageList;
import com.facebook.react.ReactInstanceManager;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.ReactPackageTurboModuleManagerDelegate;
import com.facebook.react.bridge.JSIModulePackage;
import com.facebook.react.bridge.JSIModuleProvider;
import com.facebook.react.bridge.JSIModuleSpec;
import com.facebook.react.bridge.JSIModuleType;
import com.facebook.react.bridge.JavaScriptContextHolder;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.UIManager;
import com.facebook.react.fabric.ComponentFactory;
import com.facebook.react.fabric.CoreComponentsRegistry;
import com.facebook.react.fabric.FabricJSIModuleProvider;
import com.facebook.react.fabric.ReactNativeConfig;
import com.facebook.react.uimanager.ViewManagerRegistry;
import com.exampleapp.BuildConfig;
import com.exampleapp.newarchitecture.components.MainComponentsRegistry;
import com.exampleapp.newarchitecture.modules.MainApplicationTurboModuleManagerDelegate;
import java.util.ArrayList;
import java.util.List;
/**
* A {@link ReactNativeHost} that helps you load everything needed for the New Architecture, both
* TurboModule delegates and the Fabric Renderer.
*
* <p>Please note that this class is used ONLY if you opt-in for the New Architecture (see the
* `newArchEnabled` property). Is ignored otherwise.
*/
public class MainApplicationReactNativeHost extends ReactNativeHost {
public MainApplicationReactNativeHost(Application application) {
super(application);
}
@Override
public boolean getUseDeveloperSupport() {
return BuildConfig.DEBUG;
}
@Override
protected List<ReactPackage> getPackages() {
List<ReactPackage> packages = new PackageList(this).getPackages();
// Packages that cannot be autolinked yet can be added manually here, for example:
// packages.add(new MyReactNativePackage());
// TurboModules must also be loaded here providing a valid TurboReactPackage implementation:
// packages.add(new TurboReactPackage() { ... });
// If you have custom Fabric Components, their ViewManagers should also be loaded here
// inside a ReactPackage.
return packages;
}
@Override
protected String getJSMainModuleName() {
return "index";
}
@NonNull
@Override
protected ReactPackageTurboModuleManagerDelegate.Builder
getReactPackageTurboModuleManagerDelegateBuilder() {
// Here we provide the ReactPackageTurboModuleManagerDelegate Builder. This is necessary
// for the new architecture and to use TurboModules correctly.
return new MainApplicationTurboModuleManagerDelegate.Builder();
}
@Override
protected JSIModulePackage getJSIModulePackage() {
return new JSIModulePackage() {
@Override
public List<JSIModuleSpec> getJSIModules(
final ReactApplicationContext reactApplicationContext,
final JavaScriptContextHolder jsContext) {
final List<JSIModuleSpec> specs = new ArrayList<>();
// Here we provide a new JSIModuleSpec that will be responsible of providing the
// custom Fabric Components.
specs.add(
new JSIModuleSpec() {
@Override
public JSIModuleType getJSIModuleType() {
return JSIModuleType.UIManager;
}
@Override
public JSIModuleProvider<UIManager> getJSIModuleProvider() {
final ComponentFactory componentFactory = new ComponentFactory();
CoreComponentsRegistry.register(componentFactory);
// Here we register a Components Registry.
// The one that is generated with the template contains no components
// and just provides you the one from React Native core.
MainComponentsRegistry.register(componentFactory);
final ReactInstanceManager reactInstanceManager = getReactInstanceManager();
ViewManagerRegistry viewManagerRegistry =
new ViewManagerRegistry(
reactInstanceManager.getOrCreateViewManagers(reactApplicationContext));
return new FabricJSIModuleProvider(
reactApplicationContext,
componentFactory,
ReactNativeConfig.DEFAULT_CONFIG,
viewManagerRegistry);
}
});
return specs;
}
};
}
}