AndroidMVP

It is a simple MVP android project to understand the basic concept on MVP architecture.

Prerequisites

Android SDK v28 Latest Android Build Tools Android Support Repository

Features

Simple login screen.

• Fake API call for delay
• View interaction with presenter
• Presenter interaction with View/Model

Description

• MainActivity implements MainActivityPresenter.View and overrides these methods.

    public interface View {
      void updateLoginResponse(String response);
      void clearInputFeilds();
      void showProgressBar();
      void hideProgressBar();
    }
  

• You can add any dummy credentials on login screen to proceed View communicates to presenter.

    private MainActivityPresenter presenter = new MainActivityPresenter(this);
    presenter.loginAPICall("email", "password");  
  

  after calling this there would be a dummy loader for fake API call (see MainActivityPresenter class) and return response to View.

   mainActivityView.updateLoginResponse("Successfully logged in with these credentials: \n\n" + user.toString());
   mainActivityView.clearInputFeilds();
   mainActivityView.hideProgressBar();
  

Architecture used

Dependencies used

//App's dependencies
implementation 'com.android.support:appcompat-v7:28.0.0'

Presenter class for communication

public class MainActivityPresenter {
private User user;
private View mainActivityView;

public MainActivityPresenter(View mainActivityView) {
    this.user = new User();
    this.mainActivityView = mainActivityView;
} 

public void loginAPICall(String email, String password) {
    user.setEmail(email);
    user.setPassword(password);

    //Do API call here, I am adding dummy loader/for delay
    mainActivityView.showProgressBar();

    new CountDownTimer(3000, 1000) {

        public void onTick(long millisUntilFinished) {
        }

        public void onFinish() {

            mainActivityView.updateLoginResponse("Successfully logged in with these credentials: \n\n" + user.toString());

            mainActivityView.clearInputFeilds();
            mainActivityView.hideProgressBar();
        }
    }.start();
}
  public interface View {

     void updateLoginResponse(String response);

      void clearInputFeilds();

     void showProgressBar();

     void hideProgressBar();
  }
}

How to run a sample

• Clone or download the project open it with Android Studio compile and run it will work.

Images

Author

Waheed Nazir

License

It is totally free to use. :)