7.ViewPagerIndicator

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/fl_content"
    android:background="#fff"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
</FrameLayout>

 <activity
            android:name=".MainActivity"
            android:theme="@style/Theme.PageIndicatorDefaults" />

    <style name="Theme.PageIndicatorDefaults" parent="android:Theme">
        <item name="vpiIconPageIndicatorStyle">@style/Widget.IconPageIndicator</item>
        <item name="vpiTabPageIndicatorStyle">@style/Widget.TabPageIndicator</item>
    </style>

 <style name="Widget.TabPageIndicator" parent="Widget">
        <item name="android:gravity">center</item>
        <item name="android:background">@drawable/vpi__tab_indicator</item>
        <item name="android:paddingLeft">22dip</item>
        <item name="android:paddingRight">22dip</item>
        <item name="android:paddingTop">12dp</item>
        <item name="android:paddingBottom">12dp</item>
        <item name="android:textAppearance">@style/TextAppearance.TabPageIndicator</item>
        <item name="android:textSize">16sp</item>
        <item name="android:textColor">@drawable/vpi__tab_text_color_indicator</item>//在下面加了横线
        <item name="android:maxLines">1</item>
    </style>

 <!-- Non focused states -->
    <item android:state_focused="false" android:state_pressed="false" android:state_selected="false" android:color="#000"/>
    <item android:state_focused="false" android:state_pressed="false" android:state_selected="true" android:color="#f00"/>

public class NewsMenuDetailPager extends BaseMenuDetailPager implements
		OnPageChangeListener {
	private ViewPager mViewPager;
	private ArrayList<TabDetailPager> mPagerList;
	private ArrayList<NewsTabData> mNewsTabData;// 页签网络数据
	private TabPageIndicator mIndicator;
	public NewsMenuDetailPager(Activity activity,
			ArrayList<NewsTabData> children) {
		super(activity);
		mNewsTabData = children;
	}
	@Override
	public View initViews() {
		View view = View.inflate(mActivity, R.layout.news_menu_detail, null);
		mViewPager = (ViewPager) view.findViewById(R.id.vp_menu_detail);
		ViewUtils.inject(this, view);
		mIndicator = (TabPageIndicator) view.findViewById(R.id.indicator);
		// mViewPager.setOnPageChangeListener(this);//注意:当viewpager和Indicator绑定时,
		// 滑动监听需要设置给Indicator而不是viewpager
		mIndicator.setOnPageChangeListener(this);
		return view;
	}
	@Override
	public void initData() {
		mPagerList = new ArrayList<TabDetailPager>();
		// 初始化页签数据
		for (int i = 0; i < mNewsTabData.size(); i++) {
			TabDetailPager pager = new TabDetailPager(mActivity,
					mNewsTabData.get(i));
			mPagerList.add(pager);
		}
		mViewPager.setAdapter(new MenuDetailAdapter());
		mIndicator.setViewPager(mViewPager);// 将viewpager和mIndicator关联起来,必须在viewpager设置完adapter后才能调用
	}
	// 跳转下一个页面
	@OnClick(R.id.btn_next)
	public void nextPage(View view) {
		int currentItem = mViewPager.getCurrentItem();
		mViewPager.setCurrentItem(++currentItem);
	}
	class MenuDetailAdapter extends PagerAdapter {
		/**
		 * 重写此方法,返回页面标题,用于viewpagerIndicator的页签显示
		 */
		@Override
		public CharSequence getPageTitle(int position) {
			return mNewsTabData.get(position).title;
		}
		@Override
		public int getCount() {
			return mPagerList.size();
		}
		@Override
		public boolean isViewFromObject(View arg0, Object arg1) {
			return arg0 == arg1;
		}
		@Override
		public Object instantiateItem(ViewGroup container, int position) {
			TabDetailPager pager = mPagerList.get(position);
			container.addView(pager.mRootView);
			pager.initData();
			return pager.mRootView;
		}
		@Override
		public void destroyItem(ViewGroup container, int position, Object object) {
			container.removeView((View) object);
		}
	}
	@Override
	public void onPageScrollStateChanged(int arg0) {
	}
	@Override
	public void onPageScrolled(int arg0, float arg1, int arg2) {
	}
	@Override
	public void onPageSelected(int arg0) {
		System.out.println("onPageSelected:" + arg0);
		MainActivity mainUi = (MainActivity) mActivity;
		SlidingMenu slidingMenu = mainUi.getSlidingMenu();
		if (arg0 == 0) {//只有在第一个页面(北京), 侧边栏才允许出来
			slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
		} else {
			slidingMenu.setTouchModeAbove(SlidingMenu.TOUCHMODE_NONE);
		}
	}
}