ViewPager as listview header view

TouchInterceptActivity.java

public class TouchInterceptActivity extends Activity implements ViewPager.OnPageChangeListener {

  private ViewPager mViewPager;
  private ListView mListView;

  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.touch_intercept);

    mViewPager = new ViewPager(this);
    mViewPager.setLayoutParams(new ListView.LayoutParams(ListView.LayoutParams.MATCH_PARENT,
        getResources().getDimensionPixelSize(R.dimen.header_height)));
    mListView = (ListView) findViewById(R.id.list);

    mListView.addHeaderView(mViewPager);
    mListView.setAdapter(new ItemsAdapter(this));

    mViewPager.setOnPageChangeListener(this);
    mViewPager.setAdapter(new HeaderAdapter(this));
  }

  @Override
  public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
  }

  @Override
  public void onPageSelected(int position) {
  }

  @Override
  public void onPageScrollStateChanged(int state) {
    //While the ViewPager is scrolling, disable the ScrollView touch intercept
    // so it cannot take over and try to vertical scroll
    boolean isScrolling = state != ViewPager.SCROLL_STATE_IDLE;
    mListView.requestDisallowInterceptTouchEvent(isScrolling);
  }

  /*
   * Simple ListAdapter that draws a series of row items
   */
  private static class ItemsAdapter extends BaseAdapter {

    private LayoutInflater mInflater;

    public ItemsAdapter(Context context) {
      mInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
      return 25;
    }

    @Override
    public Object getItem(int position) {
      return null;
    }

    @Override
    public long getItemId(int position) {
      return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      if (convertView == null) {
        convertView = mInflater.inflate(R.layout.intercept_row, parent, false);
      }

      TextView v = (TextView) convertView.findViewById(R.id.text);
      v.setText(String.format("Item Row %d", position + 1));

      return convertView;
    }
  }

  /*
   * Simple PagerAdapter that just draws a small group of colored views
   */
  private static class HeaderAdapter extends PagerAdapter {
    private static final int[] COLORS = { 0xFF555500, 0xFF770077, 0xFF007777, 0xFF777777 };

    private Context mContext;

    public HeaderAdapter(Context context) {
      mContext = context;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
      TextView textView = new TextView(mContext);
      textView.setBackgroundColor(COLORS[position]);
      textView.setGravity(Gravity.CENTER);
      textView.setText("Header Card " + position);
      container.addView(textView);
      return textView;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
      container.removeView((View) object);
    }

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

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