HomeActivity.java

package uk.co.chrisjenx.paralloidexample;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Menu;

public class HomeActivity extends FragmentActivity {

    /**
     * The {@link android.support.v4.view.PagerAdapter} that will provide
     * fragments for each of the sections. We use a
     * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
     * will keep every loaded fragment in memory. If this becomes too memory
     * intensive, it may be best to switch to a
     * {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    SectionsPagerAdapter mSectionsPagerAdapter;

    /**
     * The {@link ViewPager} that will host the section contents.
     */
    ViewPager mViewPager;

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


        // Create the adapter that will return a fragment for each of the three
        // primary sections of the app.
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

        // Set up the ViewPager with the sections adapter.
        mViewPager = (ViewPager) findViewById(R.id.pager);
        mViewPager.setAdapter(mSectionsPagerAdapter);

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.home, menu);
        return true;
    }


    /**
     * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
     * one of the sections/tabs/pages.
     */
    public class SectionsPagerAdapter extends FragmentStatePagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {
            switch (position) {
                default:
                case 0:
                    return new ParallaxViewUpFragment();
                case 1:
                    return new ShiftBackgroundFragment();
                case 2:
                    return new ParallaxBackgroundFragment();
                case 3:
                    return new ParallaxBackgroundListFragment();
                case 4:
                    return new OverParallaxBackgroundListFragment();
                case 5:
                    return new ParallaxViewDownFragment();
                case 6:
                    return new ParallaxViewRightFragment();
                case 7:
                    return new ParallaxViewCombiFragment();
            }
        }

        @Override
        public int getCount() {
            return 8;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return getString(R.string.title_section1);
                case 1:
                    return getString(R.string.title_section2);
                case 2:
                    return getString(R.string.title_section3);
                case 3:
                    return getString(R.string.title_section4);
                case 4:
                    return getString(R.string.title_section5);
                case 5:
                    return getString(R.string.title_invert_transformer);
                case 6:
                    return getString(R.string.title_transform_right);
                case 7:
                    return getString(R.string.title_transform_combi);
            }
            return null;
        }
    }
}