Menu
I want to know, If Android Supports MVC (Model View Controller) structure ? If support then 1. What is Controller ? 2.What is Model ? and 3. What is View ?
Please clear me. I have some confusion about this.
738
Most Android developers use a common architecture called MVC, or Model-View-Controller. This pattern is classic, and you will find it in the majority of development projects. It's not the only software pattern, but it's the one we'll study in this course and apply to our TopQuiz application.
The Model-View-Controller Pattern Model — the data layer, responsible for managing the business logic and handling network or database API. View — the UI layer — a visualisation of the data from the Model. Controller — the logic layer, gets notified of the user's behavior and updates the Model as needed.
In MVC, the controller is the entry point to the Application, while in MVVM, the view is the entry point to the Application. MVC Model component can be tested separately from the user, while MVVM is easy for separate unit testing, and code is event-driven.
MVVM is better than MVC/MVP because of its unidirectional data and dependency flow. Dependency is one way, thus it is a lot easier to decouple it when we need to. It is also easier for testing. All my projects(written in Kotlin for Android app) are based on MVVM.
Which design patterns are used on Android?
Model-View-Control works fine
The actual
Activityclass doesn't extend android'sViewclass, but it does, however, handle displaying a window to the user and also handle the events of that window (onCreate,onPauseetc).This means, that when you are using a MVC pattern, your controller will actually be a pseudo View-Controller. Since it is handling displaying a window to the user, with the additional view components you have added to it with
setContentView, and also handling events for atleast the various activity life cycle events.In MVC, the controller is supposed to be the main entry point. Which is a bit debatable if this is the case when applying it to android development, since the
activityis the natural entry point of most applications.
Model = Entities or Classes with main Business Logic
View = layout, resources and widgets like EditText
Controller = Activity , Adaptor
182
Model = Content Provider.
Controller = Activity, Fragment or Service.
View = XML layouts.
41
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
