VIPER FTP TUTORIAL ANDROID
VIPER FTP TUTORIAL CODE

In other words, it commands any action making use of the Interactor, tells the View to display content, and orders the navigation to other screens using the Router. The Presenter acts as a “Head-of-Department”.

The Interactor takes care of performing any action, when the Presenter says to.

A goal is to make the View as dumb as possible, so that it only takes care of showing the UI. The View corresponds to an Activity or Fragment in the app.

VIPER FTP TUTORIAL ANDROID

Within the framework of an Android app, the VIPER layers are assigned according to the following scheme: The basic idea behind VIPER and other Clean Architecture patterns is to create a cleaner and more modular structure to isolate your app’s dependencies and improve the flow of data within your app. This five-layer organization aims to assign different tasks to each entity, following the Single Responsibility Principle. VIPER stands for View, Interactor, Presenter, Entity, and Router. In this section you will start diving into VIPER, an architecture pattern related to the Clean Architecture Paradigm. The Architecture Components are now part of Android Jetpack. In addition, Google also released the Android Architecture Components, which is “a collection of libraries that help you design robust, testable, and maintainable apps”. You should definitely have a look at the repo to get a feeling for what’s available as guidance. It was only last year that Google introduced the Android Architecture Blueprints project, in an attempt to give Android developers some organization and structure guidelines. Later, Fragments came on the stage and became mainstream in many applications. In the old days, app structure was based around the four Android main application components: Activity (most cases), Service, Broadcast Receiver, and/or Content Provider. On the other hand, my impression is that, until recently, architecture patterns were never a main focus of the official Android documentation. Let me start this section making an announcement upfront: I do not aim to put the blame on Android/Google for the lack of architecture patterns in my early projects. When Android I met Architecture Patterns… In my case, I was lucky enough to have a colleague around who pushed me to adopt architecture patterns in my projects.

VIPER FTP TUTORIAL CODE

Your code becomes illegible to any other developer, since you are the only one able to “decipher” your business logic.

Some parts of your code are difficult or even impossible to cover with Unit Tests.

Your classes and/or methods have increased their line length dramatically, largely exceeding the Rule of 30.

You realize that there are too many null checks of the same field in different parts of the code.

You get lost refactoring your own code when adding extra features.

Then, at some point, you have gone through any of the following situations: To sum up, you may have been developing Android apps for quite some time, reaching a high-level of code complexity and a considerable amount of lines of code in some of your projects. If the above introduction has grabbed your attention, it means you may feel as I used to just a few months ago. You will then put it into practice, implementing a sample app that adopts this architecture pattern and illustrates its benefits.ĭo not fear the VIPER, just enjoy the bite! :] Why are you (probably) reading this? You will start by understanding the ideas behind VIPER and how it fits into the Android framework. In this tutorial, you will get to know the VIPER architecture pattern. However, I assure you that once you get in-the-loop, you will appreciate how valuable it is to have proper code structure and organization. If I add the word VIPER to the discussion, you might think this sounds like a scam or click-bait. If you have some experience with Android development, Architecture Patterns may sound like an old-fashioned concept, which some smart guy has brought to the table just to put you down mercilessly.

Viper ftp tutorial