# Android MVVM Architecture (Android)

> Arsitektur MVVM dengan Jetpack: ViewModel, LiveData, Data Binding, Separation of Concerns, Unidirectional Data Flow

- 18 pertanyaan wawancara
- Mid-Level
- [Pertanyaan Wawancara: Android](https://sharpskill.dev/id/technologies/android/pertanyaan-wawancara.md)

## 1. Apa itu ViewModel di Android?

**Jawaban**

ViewModel adalah komponen Jetpack yang menyimpan dan mengelola data terkait UI secara lifecycle-aware. Ia bertahan terhadap perubahan konfigurasi (rotasi layar) dan memungkinkan pemisahan logika bisnis dari UI.

## 2. Bagaimana cara membuat instance ViewModel di Activity?

**Jawaban**

Gunakan ViewModelProvider untuk membuat atau mengambil instance ViewModel. ViewModelProvider(this).get(MyViewModel.class) memastikan Anda mendapatkan instance yang sama bahkan setelah rotasi layar.

## 3. Mengapa Anda tidak boleh meneruskan Context Activity atau View ke dalam ViewModel?

**Jawaban**

ViewModel bertahan terhadap perubahan konfigurasi dan hidup lebih lama dari Activities. Menyimpan referensi Activity Context akan menyebabkan kebocoran memori. Gunakan AndroidViewModel dengan Application Context jika diperlukan.

## 15 pertanyaan lagi tersedia

- Apa itu LiveData?
- Apa perbedaan antara LiveData dan MutableLiveData?

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