AnnoMVP provides you a fancy way to create MVP architecture for your application.

No need to create multiple interface for your Model, View & Presenter. AnnoMVP have your back, it will take the headache and create all those for your without any effort.

AnnoMVP is an annotation based library that is very easy to use in your daily development life. The only thing that you need to know is @MVP, @Presenter & @View.

Add the mvp.jar file in your libs folder and include the following code to build.gradle file:

• inside app: classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'

• inside application: apply plugin: 'com.neenbedankt.android-apt'

In-order to segregate your code MVP ask you to create different modules for everything.

• Model
• View
• Presenter

Model is where you keep all your business logic's, whether it's WebService consumption, Database queries or any calculation suitable for your application.

View is what your user will see and interact with.

Presenter will be the intermediater that will communicate with Model to get the work done and updates the View accordingly.

Let us take an example where a developer is having a class LoginActivity and want to create all the above using AnnoMVP, so just follow these steps:

• Create an interface and name it Login and annotate it with @MVP.
• Add all the methods that corresponds to your business logic like: public void login(String email, String password); and annotate it with @Presenter
• Add all the methods that corresponds to your view's like: public void onUserLogin(); and annotate it with @View.

Here @MVP will create an interface

1. LoginModel with the method public void login(String email, String password);
2. LoginView with the method public void onUserLogin();
3. LoginInteractor with the method public void login(String email, String password, OnLoginInteractedListener listener);
4. OnLoginInteractedListener with the method public void onUserLogin();

The only thing that developer need to do is to manage the mapping of the above created interface:

1. Create a class with name LoginPresenterImp and implement it with LoginPresenter and implement the unimplemented methods in it.
2. Create a class with name LoginInteractorImp and implement it with LoginInteractor and implement the unimplemented methods in it.

@MVP
public interface Login {
    @Presenter
    void login(String email, String password);

    @View
    void onUserLogin();
}

public class LoginPresenterImpl implements LoginPresenter, OnLoginInteractedListener {
    private LoginView view;
    private LoginInteractor interactor;

    public LoginPresenterImpl(LoginView view) {
        this.view = view;
        interactor = new LoginInteractorImpl();
    }

    @Override
    public void login(String email, String password) {
        interactor.login(email, password, this);
    }

    @Override
    public void onUserLogin() {
        view.onUserLogin();
    }
}

public class LoginInteractorImpl implements LoginInteractor {

    @Override
    public void login(String email, String password, final OnLoginInteractedListener listener) {
        // TODO login process
        // TODO after login process
        listener.onUserLogin();
    }
}

LoginPresenter presenter = new LoginPresenterImp(this);
presenter.login("[email protected]", "123456");

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