lnreader/android/app/src/main/java/com/rajarsheechatterjee/LNReader/MainApplication.java

package com.rajarsheechatterjee.LNReader;

import android.app.Application;
import android.content.Context;
import android.content.res.Configuration;
import androidx.annotation.NonNull;

import com.facebook.react.PackageList;
import com.facebook.react.ReactApplication;
import com.facebook.react.ReactInstanceManager;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.soloader.SoLoader;
import com.rajarsheechatterjee.VolumeButtonListener.VolumeButtonListenerPackage;
import com.rajarsheechatterjee.EpubParser.EpubParserPackage;
import expo.modules.ApplicationLifecycleDispatcher;
import expo.modules.ReactNativeHostWrapper;

import com.facebook.react.bridge.JSIModulePackage;
import com.swmansion.reanimated.ReanimatedJSIModulePackage;

import java.lang.reflect.InvocationTargetException;
import java.util.List;

import org.devio.rn.splashscreen.SplashScreenReactPackage;
import com.rnfs.RNFSPackage;

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = 
    new ReactNativeHostWrapper(this, new ReactNativeHost(this) {
        @Override
        public boolean getUseDeveloperSupport() {
          return BuildConfig.DEBUG;
        }

        @Override
        protected List<ReactPackage> getPackages() {
          @SuppressWarnings("UnnecessaryLocalVariable")
          List<ReactPackage> packages = new PackageList(this).getPackages();
          packages.add(new com.rajarsheechatterjee.LNReader.NavigationBarColorPackage());
          packages.add(new VolumeButtonListenerPackage());
          packages.add(new EpubParserPackage());
          return packages;
        }

        @Override
        protected String getJSMainModuleName() {
          return "index";
        }

        @Override
        protected JSIModulePackage getJSIModulePackage() {
          return new ReanimatedJSIModulePackage();
        }
      }
    );

  @Override
  public ReactNativeHost getReactNativeHost() {
      return mReactNativeHost;
  }

  @Override
  public void onCreate() {
    super.onCreate();
    SoLoader.init(this, /* native exopackage */ false);

    initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
    ApplicationLifecycleDispatcher.onApplicationCreate(this);
  }

  /**
   * Loads Flipper in React Native templates. Call this in the onCreate method
   * with something like
   * initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
   *
   * @param context
   * @param reactInstanceManager
   */
  private static void initializeFlipper(
    Context context, ReactInstanceManager reactInstanceManager) {
    if (BuildConfig.DEBUG) {
      try {
        /*
         * We use reflection here to pick up the class that initializes Flipper,
         * since Flipper library is not available in release mode
         */
        Class<?> aClass = Class.forName("com.rajarsheechatterjee.LNReader.ReactNativeFlipper");
        aClass
            .getMethod("initializeFlipper", Context.class, ReactInstanceManager.class)
            .invoke(null, context, reactInstanceManager);
      } catch (ClassNotFoundException e) {
        e.printStackTrace();
      } catch (NoSuchMethodException e) {
        e.printStackTrace();
      } catch (IllegalAccessException e) {
        e.printStackTrace();
      } catch (InvocationTargetException e) {
        e.printStackTrace();
      }
    }
  }

  @Override
  public void onConfigurationChanged(@NonNull Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    ApplicationLifecycleDispatcher.onConfigurationChanged(this, newConfig);
  }
}