VIPER (View Interactor Presenter Entity Router) Architecture

VIPER is an architectural pattern used in software development, especially in mobile app development, to organize code in a modular and scalable way. Let’s break down:

• View:
  • The View is what the user sees on the screen – buttons, text, images, etc. In a messaging app, for instance, the View would be the part of the app where you see your chat interface.
• Interactor:
  • The Interactor contains the business logic of your application. It’s responsible for handling data and performing operations. In a messaging app, the Interactor would manage tasks like sending and receiving messages.
• Presenter:
  • The Presenter acts as a mediator between the View and the Interactor. It handles user input from the View, communicates with the Interactor to perform actions, and then updates the View with the results. In the messaging app, the Presenter would manage things like handling a user’s tap on a message to display more details.
• Entity:
  • The Entity represents the data objects used by the Interactor. In the messaging app, an Entity could be the structure that holds information about a message, such as the sender, timestamp, and content.
• Router:
  • The Router manages navigation between different modules (screens or features) of your app. It decides which screen to show based on user actions. In the messaging app, the Router could handle navigating from the chat screen to the settings screen.

Example

Imagine you are building a basic social media app.

• View: The View would be the part of the app where users see their feed – posts, comments, and likes.
• Interactor: The Interactor would handle the logic for loading posts, managing user interactions (like adding a comment), and interacting with the app’s backend to fetch or update data.
• Presenter: The Presenter would take user input from the View (like tapping on a post), communicate with the Interactor to perform the necessary actions (like fetching detailed information about the post), and then update the View to show the results.
• Entity: The Entity would be the data structure representing a post – with fields like the post content, author, and timestamp.
• Router: The Router would handle navigation between screens, for instance, moving from the feed to the user’s profile page.

Hey there, tech enthusiasts! Ever wonder what makes your favorite mobile apps so smooth and user-friendly? Well, the secret lies in their architecture – the behind-the-scenes structure that turns code into the awesome apps we can’t live without.

Imagine you’re building your dream house. You wouldn’t just start putting things together randomly, right? You’d need a smart plan, like a blueprint, to make sure everything fits and works well. Well, the same goes for making apps, especially the ones you love on your phone.

In the big world of making apps, it’s a bit like building a house people want to live in. And right in the middle of all this is the plan – the fancy term for it is architecture. It’s like the secret recipe that turns your idea into a smooth and working app.