Which design pattern follow for creating an android project in android studio IDE?

I found, There are various patterns used in Android component and framework like:

Behavioral patterns:

• Observer (e.g.Broadcast Receiver, RxAndroid)
• Command (e.g. EventBus)
• Model View Controller
• Model View Presenter
• Model View ViewModel (similar to the MVC pattern above)

Creational patterns:

• Builder (e.g. Notification, AlertDialog.Builder,)
• Dependency Injection (e.g. Dagger 2)
• Singleton (e.g.View Holder)

Structural patterns:

• Adapter (e.g. RecyclerView.Adapter)
• Facade (e.g. Retrofit,Media Frame)

Actually,

I am already used MVP and MVVM design pattern. But Don't know
What is the name of the default design pattern of Android Studio Project?