What presentation pattern is used when developing a project in Android Studio?

In Android Studio, during project development, the Presentation Layer pattern is often used, implemented through architectural patterns such as MVP (Model-View-Presenter) or MVVM (Model-View-ViewModel).

• MVP separates logic into three components: Model (data), View (interface), and Presenter (intermediate layer that handles logic and interacts with View and Model).
• MVVM uses ViewModel, which contains presentation data and logic, and the View subscribes to changes via Data Binding or LiveData.

In modern Android projects, MVVM with Jetpack components is more commonly used, as it better integrates with Android architecture and simplifies UI state management.

Example of using MVVM:

class MyViewModel : ViewModel() {
    val data = MutableLiveData<String>()

    fun loadData() {
        // load data
        data.value = "Hello, MVVM!"
    }
}

// In Activity or Fragment
viewModel.data.observe(this, Observer { value ->
    textView.text = value
})