当我没有初始化FirebaseApp时，它会自动启动吗？

import com.google.firebase.FirebaseApp;

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        FirebaseApp.initializeApp(this);
    }
}

Default FirebaseApp is not initialized in this process com.example.myapp. Make sure to call FirebaseApp.initializeApp(Context) first.