Android MVVM Architecture Simplified

In modern software development, writing Graphical User Interfaces (GUIs) from scratch is uncommon due to the time it takes and the redundancy it entails. Instead, developers rely on preexisting components to achieve their desired outcomes, whether it’s rendering UI elements or performing business logic. While Object-Oriented Programming (OOP) allows for easy utilisation of external code, it can also result in tight coupling between components, leading to what is commonly referred to as “spaghetti code.” An example of tight coupling is when UI, business logic, and data handling are all intertwined within a single view, such as an activity or fragment. <img alt="" src="https://miro.medium.com/v2/resize:fit:630/1*RboNE1JcU4rpMKiEA-4mAg.png" style="height:525px; width:700px" /> To address these challenges, Google recommends the Model-View-ViewModel (MVVM) <a href="https://medium.com/@opeyemiolorunleke/android-app-architecture-patterns-the-why-and-how-9a87b72ee3a6" rel="noopener">architectural pattern for Android app development</a>. MVVM is just one of many GUI architectures used to separate the concerns of UI (displaying data), business logic (processing data), and data handling (where and how to obtain data). By adopting MVVM or similar patterns, developers can achieve better code organisation, maintainability, and reusability in their Android applications. A well architected app is modular (loosely coupled) hence reusable, scalable and testable. For example, if your app was loosely coupled enough you could replace components (like recycler view with compose lazy list) without breaking the codebase. In addition to these benefits, MVVM is also supported by the Android Architecture Components, which are a set of libraries that make it easier to develop Android apps with good architecture. <a href="https://medium.com/@opeyemiolorunleke/android-mvvm-architecture-simplified-8b4f37f48fbe">Visit Now</a>