maydin

public class SelectableViewHolder extends RecyclerView.ViewHolder {

    public static final int MULTI_SELECTION = 2;
    public static final int SINGLE_SELECTION = 1;
    CheckedTextView textView;
    SelectableItem mItem;
    OnItemSelectedListener itemSelectedListener;


    public SelectableViewHolder(View view, OnItemSelectedListener listener) {

maydin

public class SelectableItem extends Item{
    private boolean isSelected = false;


    public SelectableItem(Item item,boolean isSelected) {
        super(item.getName(),item.getSurname());
        this.isSelected = isSelected;
    }

maydin

public class Item {

    private String name;
    private String surname;

    public Item(String name, String surname) {
        this.name = name;
        this.surname = surname;
    }

maydin

public class MainActivity extends AppCompatActivity {

    private ViewPager viewPager;
    private ViewPagerAdapter adapter;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

maydin

public class Step1Presenter extends Presenter {

    TextView textViewStep1;

    public Step1Presenter(AppCompatActivity activity, View view) {
        super(activity, view);
    }

    @Override
    public void onCreateView() {

maydin

public abstract class Presenter {

    protected View view;
    private AppCompatActivity activity;

    public Presenter(AppCompatActivity activity,View view) {
        this.activity = activity;
        this.view = view;
        onCreateView();
    }

maydin

class ViewPagerAdapter extends PagerAdapter {
        private final List<Presenter> mPresenterList = new ArrayList<>();

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == object;
        }

        @Override
        public int getCount() {

maydin

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:id="@+id/step1_textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Step1"/>

maydin

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"

maydin

@LargeTest
@RunWith(AndroidJUnit4.class)
public class UserServiceTest {
    @Rule
    public ActivityTestRule<MainActivity> mActivityTestRule = new ActivityTestRule<MainActivity>(MainActivity.class) {
        @Override
        protected void beforeActivityLaunched() {

            App application = (App) InstrumentationRegistry.getInstrumentation().getTargetContext().getApplicationContext();
            TestUserComponent component = DaggerUserServiceTest_TestUserComponent.builder()