CursorPagerAdapter

import android.database.Cursor;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

public abstract class CursorPagerAdapter extends FragmentPagerAdapter {

    private Cursor cursor;

    public CursorPagerAdapter(FragmentManager fm) {
        this(fm, null);
    }

    public CursorPagerAdapter(FragmentManager fm, Cursor cursor) {
        super(fm);
        this.cursor = cursor;
    }

    @Override
    public Fragment getItem(int position) {
        assert cursor != null;
        cursor.moveToPosition(position);
        return createFragment(cursor);
    }

    protected abstract Fragment createFragment(Cursor cursor);

    @Override
    public int getCount() {
        return (cursor == null) ? 0 : cursor.getCount();
    }

    public void swapCursor(Cursor c) {
        if (cursor != c) {
            this.cursor = c;
            notifyDataSetChanged();
        }
    }

    public Cursor getCursor() {
        return cursor;
    }

}