chore: update example using fabric arch

Author: muhamad-rizki

example/android/app/src/main/jni/Android.mk

@@ -0,0 +1,54 @@
+THIS_DIR := $(call my-dir)
+
+include $(REACT_ANDROID_DIR)/Android-prebuilt.mk
+
+# If you wish to add a custom TurboModule or Fabric component in your app you
+# will have to include the following autogenerated makefile.
+# include $(GENERATED_SRC_DIR)/codegen/jni/Android.mk
+
+# Includes the MK file for `react-native-fast-shadow`
+include $(NODE_MODULES_DIR)/../../android/build/generated/source/codegen/jni/Android.mk
+
+include $(CLEAR_VARS)
+
+LOCAL_PATH := $(THIS_DIR)
+
+# You can customize the name of your application .so file here.
+LOCAL_MODULE := example_appmodules
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)
+LOCAL_SRC_FILES := $(wildcard $(LOCAL_PATH)/*.cpp)
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)
+
+# If you wish to add a custom TurboModule or Fabric component in your app you
+# will have to uncomment those lines to include the generated source
+# files from the codegen (placed in $(GENERATED_SRC_DIR)/codegen/jni)
+#
+# LOCAL_C_INCLUDES += $(GENERATED_SRC_DIR)/codegen/jni
+# LOCAL_SRC_FILES += $(wildcard $(GENERATED_SRC_DIR)/codegen/jni/*.cpp)
+# LOCAL_EXPORT_C_INCLUDES += $(GENERATED_SRC_DIR)/codegen/jni
+
+# Here you should add any native library you wish to depend on.
+LOCAL_SHARED_LIBRARIES := \
+  libfabricjni \
+  libfbjni \
+  libfolly_futures \
+  libfolly_json \
+  libglog \
+  libjsi \
+  libreact_codegen_rncore \
+  libreact_codegen_FastShadowView \
+  libreact_debug \
+  libreact_nativemodule_core \
+  libreact_render_componentregistry \
+  libreact_render_core \
+  libreact_render_debug \
+  libreact_render_graphics \
+  librrc_view \
+  libruntimeexecutor \
+  libturbomodulejsijni \
+  libyoga
+
+LOCAL_CFLAGS := -DLOG_TAG=\"ReactNative\" -fexceptions -frtti -std=c++17 -Wall
+
+include $(BUILD_SHARED_LIBRARY)

example/android/app/src/main/jni/MainComponentsRegistry.cpp

@@ -0,0 +1,63 @@
+#include "MainComponentsRegistry.h"
+
+#include <CoreComponentsRegistry.h>
+#include <fbjni/fbjni.h>
+#include <react/renderer/componentregistry/ComponentDescriptorProviderRegistry.h>
+#include <react/renderer/components/rncore/ComponentDescriptors.h>
+#include <react/renderer/components/FastShadowView/ComponentDescriptors.h>
+
+namespace facebook {
+namespace react {
+
+MainComponentsRegistry::MainComponentsRegistry(ComponentFactory *delegate) {}
+
+std::shared_ptr<ComponentDescriptorProviderRegistry const>
+MainComponentsRegistry::sharedProviderRegistry() {
+  auto providerRegistry = CoreComponentsRegistry::sharedProviderRegistry();
+
+  // Custom Fabric Components go here. You can register custom
+  // components coming from your App or from 3rd party libraries here.
+  //
+  // providerRegistry->add(concreteComponentDescriptorProvider<
+  //        AocViewerComponentDescriptor>());
+  providerRegistry->add(concreteComponentDescriptorProvider<FastShadowViewComponentDescriptor>());
+  return providerRegistry;
+}
+
+jni::local_ref<MainComponentsRegistry::jhybriddata>
+MainComponentsRegistry::initHybrid(
+    jni::alias_ref<jclass>,
+    ComponentFactory *delegate) {
+  auto instance = makeCxxInstance(delegate);
+
+  auto buildRegistryFunction =
+      [](EventDispatcher::Weak const &eventDispatcher,
+         ContextContainer::Shared const &contextContainer)
+      -> ComponentDescriptorRegistry::Shared {
+    auto registry = MainComponentsRegistry::sharedProviderRegistry()
+                        ->createComponentDescriptorRegistry(
+                            {eventDispatcher, contextContainer});
+
+    auto mutableRegistry =
+        std::const_pointer_cast<ComponentDescriptorRegistry>(registry);
+
+    mutableRegistry->setFallbackComponentDescriptor(
+        std::make_shared<UnimplementedNativeViewComponentDescriptor>(
+            ComponentDescriptorParameters{
+                eventDispatcher, contextContainer, nullptr}));
+
+    return registry;
+  };
+
+  delegate->buildRegistryFunction = buildRegistryFunction;
+  return instance;
+}
+
+void MainComponentsRegistry::registerNatives() {
+  registerHybrid({
+      makeNativeMethod("initHybrid", MainComponentsRegistry::initHybrid),
+  });
+}
+
+} // namespace react
+} // namespace facebook