Update data in ListFragment as part of ViewPager

Question

I\'m using the v4 compatibility ViewPager in Android. My FragmentActivity has a bunch of data which is to be displayed in different ways on different pages in my ViewPager.

Answer 1

I want to give my approach in case it can help anyone else:

This is my pager adapter:

 public class CustomPagerAdapter extends FragmentStatePagerAdapter{
    private Fragment[] fragments;

    public CustomPagerAdapter(FragmentManager fm) {
        super(fm);
        fragments = new Fragment[]{
                new FragmentA(),
                new FragmentB()
        };
    }

    @Override
    public Fragment getItem(int arg0) {
        return fragments[arg0];
    }

    @Override
    public int getCount() {
        return fragments.length;
    }

}

In my activity I have:

public class MainActivity {
        private ViewPager view_pager;
        private CustomPagerAdapter adapter;


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

        adapter = new CustomPagerAdapter(getSupportFragmentManager());
        view_pager = (ViewPager) findViewById(R.id.pager);
        view_pager.setAdapter(adapter);
        view_pager.setOnPageChangeListener(this);
          ...
         }

}

Then to get the current fragment what I do is:

int index = view_pager.getCurrentItem();
Fragment currentFragment = adapter.getItem(index);