Android Seed project

This code is a base for every android project with MVP architecture we have used some libraries

• Support libraries
• RecyclerViews
• Retrofit 2
• Dagger 2
• Butterknife
• Glide

How to implement a new screen following MVP

Imagine you have to implement a sign in screen.

1. Create a new package under ui called signin
2. Create an new Activity called ActivitySignIn. You could also use a Fragment.
3. Define the view interface that your Activity is going to implement. Create a new interface called SignInView that extends BaseView. Add the methods that you think will be necessary, e.g. showSignInSuccessful()
4. Create a SignInPresenter class that extends BasePresenter<SignInView>
5. Implement the methods in SignInPresenter that your Activity requires to perform the necessary actions, e.g. signIn(String email). Once the sign in action finishes you should call getView().showSignInSuccessful().
6. Create a SignInPresenterTestand write unit tests for signIn(email). Remember to mock the SignInView and also the DataManager.
7. Make your ActivitySignIn implement SignInView and implement the required methods like showSignInSuccessful()
8. In your activity, inject a new instance of SignInPresenter and call presenter.attach(this) from onCreate and presenter.detach() from onDestroy(). Also, set up a click listener in your button that calls presenter.signIn(email).

Event bus

when you want to emit an event from anywhere and subscribe to this event from any other place (ex. presenter):

1. create event class

class MyEvent{
    private String message;
    private Integer identifier;

    public MyEvent(Integer id, String msg){
        message = msg;
        identifier = id;
    }

    public String getMsg(){
        return message;
    }
}

2. subscribe this event anywhere

    // attach(View)
    // ...
    Consumer<MyEvent> consumer = new Consumer<MyEvent>() {

        @Override
        public void accept(MyEvent e) throws Exception {
            // your code go here
            Toast.makeText((Activity)getView(), e.getMsg(), Toast.LENGTH_LONG)
                    .show();
        }
    };
    busDisposable = bus.filteredObservable(String.class)
            .subscribeOn(AndroidSchedulers.mainThread())
            .subscribe(consumer);

3. where you want to emit the event

    bus.post(password);

4. don't forget to despose

    busDisposable.dispose();