package dev.expo.payments;

import android.app.Application;

import com.facebook.react.ReactApplication;
import com.swmansion.reanimated.ReanimatedPackage;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;
import dev.expo.payments.generated.BasePackageList;
import com.swmansion.gesturehandler.react.RNGestureHandlerPackage;
import com.th3rdwave.safeareacontext.SafeAreaContextPackage;

import org.unimodules.adapters.react.ModuleRegistryAdapter;
import org.unimodules.adapters.react.ReactModuleRegistryProvider;
import org.unimodules.core.interfaces.SingletonModule;

import java.util.Arrays;
import java.util.List;

public class MainApplication extends Application implements ReactApplication {
  private final ReactModuleRegistryProvider mModuleRegistryProvider = new ReactModuleRegistryProvider(
    new BasePackageList().getPackageList(),
    Arrays.<SingletonModule>asList()
  );

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

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new ReanimatedPackage(),
          new RNGestureHandlerPackage(),
          new SafeAreaContextPackage(),
          new ModuleRegistryAdapter(mModuleRegistryProvider)
      );
    }

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

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

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

package dev.expo.payments;

import android.app.Application;

import com.facebook.react.ReactApplication;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;
import com.swmansion.gesturehandler.react.RNGestureHandlerPackage;
import com.swmansion.reanimated.ReanimatedPackage;
import com.th3rdwave.safeareacontext.SafeAreaContextPackage;

import org.unimodules.adapters.react.ModuleRegistryAdapter;
import org.unimodules.adapters.react.ReactModuleRegistryProvider;

import java.util.Arrays;
import java.util.List;

import dev.expo.payments.generated.BasePackageList;

public class MainApplication extends Application implements ReactApplication {
  private final ReactModuleRegistryProvider mModuleRegistryProvider = new ReactModuleRegistryProvider(
      new BasePackageList().getPackageList(),
      null
  );

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

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          new ReanimatedPackage(),
          new RNGestureHandlerPackage(),
          new SafeAreaContextPackage(),
          new ModuleRegistryAdapter(mModuleRegistryProvider)
      );
    }

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

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

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

Enable automatic singleton modules creation (#6575)