MVC (Model-View-Controller) vs MVP (Model-View-Presenter) in Android

 

Architecture Overview

    • MVC:

            Model: Manages data and business logic.
            View: Displays data and sends user actions to the Controller.
            Controller: Handles user input, interacts with the Model, and updates the View.

    • MVP:

           Model: Same as MVC, manages data and business logic.
           View: Displays data, contains UI logic, and sends user actions to the Presenter.
           Presenter: Acts as a middleman between the View and Model, handles presentation,logic,updates the View.

    Major Differences

      1.Separation of Concerns:

        MVC: Controller has dual responsibilities; handles both user input and updates to the View, leading to less separation of concerns.
        MVP: Presenter is purely responsible for the presentation logic and acts as a mediator, leading to a better separation of concerns between the View and Model.

     2.View's Role:

        MVC: View is more passive; the Controller directly updates it.
        MVP: View is more active; it communicates user actions to the Presenter, which then updates the View.

    3.Unit Testing:

        MVC: Harder to unit test due to the tight coupling between Controller and View.
        MVP: Easier to unit test as the Presenter can be tested independently of the View.

    4. Complexity Management:

        MVC: As the application grows, Controllers can become bulky and harder to manage.
        MVP: Presenters are easier to manage and scale, leading to more maintainable code in large applications.

    5.Interaction Flow:

        MVC: User action -> View -> Controller -> Model -> View update
        MVP: User action -> View -> Presenter -> Model -> Presenter -> View update

    6.Android Specific Implementation:

        MVC: Android Activities and Fragments often act as both View and Controller, which can lead to a lot of code in these components.
        MVP: View (Activity/Fragment) delegates the business logic to the Presenter, reducing the code in the View components.

        In summary, MVP offers a more modular and testable architecture compared to MVC, especially suitable for complex Android applications. The clear separation of concerns in MVP makes it a preferred choice for Android development.

Keywords

MVC,Model,View,Controller,DataBusiness logic,User input,Updates,Tight coupling,Passive View
Model View Presenter