A simple way to determine if the current app version is in alpha or beta using Firebase Remote Config

RemoteConfigManager.java

import android.content.Context;
import android.support.annotation.NonNull;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.remoteconfig.FirebaseRemoteConfig;

public class RemoteConfigManager {
    public static final String KEY_STABLE_VERSION = "stable_version";

    public interface OnAlphaBetaDeterminedListener {
        void onAlphaBetaDetermined(boolean inAlphaBeta);
    }

    public static void isVersionInAlphaBeta(final Context context, final OnAlphaBetaDeterminedListener onAlphaBetaDeterminedListener) {
        FirebaseRemoteConfig firebaseRemoteConfig = FirebaseRemoteConfig.getInstance();
        firebaseRemoteConfig.setDefaults(R.xml.remote_config_defaults);
        firebaseRemoteConfig.fetch()
                .addOnCompleteListener(new OnCompleteListener<Void>() {
                    @Override
                    public void onComplete(@NonNull Task<Void> task) {
                        firebaseRemoteConfig.activateFetched();
                        long stableVersion = firebaseRemoteConfig.getLong(KEY_STABLE_VERSION);
                        if (isInAlphaOrBeta(stableVersion, context)) {
                            onAlphaBetaDeterminedListener.onAlphaBetaDetermined(true);
                        } else {
                            onAlphaBetaDeterminedListener.onAlphaBetaDetermined(false);
                        }
                    }
                });
    }

    private static boolean isInAlphaOrBeta(long stableVersion, Context context) {
        return getCurrentAppVersion(context.getApplicationContext()) > stableVersion;
    }

    public static int getCurrentAppVersion(final Context context) {
        int versionNumber = 0;
        try {
            versionNumber = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionCode;
        } catch (Exception e) {
            ExceptionUtils.logException(e);
        }
        return versionNumber;
    }
}