Сircual scrolling view implementation for Android instead ViewPager hacks

How does it look

Features

Сircual scrolling views
Possibility to use fragments from support repository
Possibility to implement custom adapter
First and last views are not duplicated, the view uses bitmap variants instead
Сircual scrolling works with 1, 2 or more views
Scrolling stops if next element is null
View cache works, it removes old views for free memory
You can change scroll animation speed using factor

Simple example

After create CyclicView your should set adapter

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        CyclicView cyclicView = (CyclicView) findViewById(R.id.cyclic_view);
        cyclicView.setAdapter(new CyclicAdapter() {
            @Override
            public int getItemsCount() {
                return 10;
            }

            @Override
            public View createView(int position) {
                TextView textView = new TextView(MainActivity.this);
                textView.setText(String.format("TextView #%d", position + 1));
                return textView;
            }

            @Override
            public void removeView(int position, View view) {
                // Do nothing
            }
        });
    }
}

Simple example with support fragments

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        CyclicView cyclicView = (CyclicView) findViewById(R.id.cyclic_view);
        cyclicView.setAdapter(new CyclicFragmentAdapter(this, getSupportFragmentManager()) {
            @Override
            public int getItemsCount() {
                return 10;
            }

            @Override
            protected Fragment createFragment(int position) {
                String text = String.format("TextView #%d", position + 1);
                return TextFragment.newInstance(text);
            }
        });
    }

    public static class TextFragment extends Fragment {
        private static final String TEXT_ARG = "TEXT_ARG";

        public static Fragment newInstance(String text) {
            Bundle args = new Bundle();
            args.putString(TEXT_ARG, text);
            Fragment fragment = new TextFragment();
            fragment.setArguments(args);
            return fragment;
        }

        @Nullable
        @Override
        public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
            String text = getArguments().getString(TEXT_ARG);
            TextView textView = new TextView(getContext());
            textView.setText(text);
            return textView;
        }
    }
}

Available methods:

setAdapter(CyclicAdapter) for setup a adapter

setCurrentPosition(int) for switch current position

refreshViewsAroundCurrent() for reload null views around current position

addOnPositionChangeListener(CyclicView.OnPositionChangeListener) for observe CyclicView on position change

setChangePositionFactor(int) for change scroll factor

How add to project

Add it to your build.gradle with:

allprojects {
    repositories {
        maven { url "https://jitpack.io" }
    }
}

and:

dependencies {
    compile 'com.github.pozitiffcat:cyclicview:1.0.4'
}