先看下效果图：

这个需要用到1个开源的 库，这个后面也会说下的。

工程目录：

1. MainActivity.java

public class MainActivity extends FragmentActivity { private ViewPagerFrameAdapter adapter; //适配器（标题和内容） private ViewPager mPager; private TabPageIndicator tabbPageIndicator; // private UnderlinePageIndicatorEx underlinePageIndicator; private int COUNT = 0; private List<String> titles = new ArrayList<String>(); //标题 @Override protected void onCreate(Bundle bundle) { super.onCreate(bundle); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); //标题，这里自己造的假数据 for (int j = 0; j < 3 ; j++){ titles.add( "第"+ j +"标签卡"); } mPager = (ViewPager)findViewById(R.id.pager); adapter = new ViewPagerFrameAdapter(getSupportFragmentManager(),titles); mPager.setAdapter(adapter); //得到指示器 tabbPageIndicator = (TabPageIndicator) findViewById(R.id.tab_indicator); tabbPageIndicator.setViewPager(mPager); //下标 underlinePageIndicator = (UnderlinePageIndicatorEx)findViewById(R.id.underline_indicator); underlinePageIndicator.setViewPager(mPager); underlinePageIndicator.setFades(false); //设置指示器 tabbPageIndicator.setOnPageChangeListener(underlinePageIndicator); } //adapter 没啥好说的 跟前面的一样 private class ViewPagerFrameAdapter extends FragmentStatePagerAdapter{ private List<String> title; //页面标题头部数据 public ViewPagerFrameAdapter(FragmentManager fm, List<String> title) { super(fm); this.title = title; } //根据position 返回 fragment @Override public Fragment getItem(int position) { return ArrayFragment.newInstance(position); } //size @Override public int getCount() { return title.size(); } //顶部的title @Override public CharSequence getPageTitle(int position) { if (titles != null){ return titles.get(position).toString(); } return super.getPageTitle(position); } } }

UnderlinePageIndicatorEx.java

//继承这个然后重写 public class UnderlinePageIndicatorEx extends UnderlinePageIndicator{ public UnderlinePageIndicatorEx(Context context) { super(context, null); } public UnderlinePageIndicatorEx(Context context, AttributeSet attrs) { super(context, attrs, R.attr.vpiUnderlinePageIndicatorStyle); } public UnderlinePageIndicatorEx(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } //自身的 ViewPage传递过去 @Override public void setViewPager(ViewPager viewPager) { if (mViewPager == viewPager){ return; } // if (mViewPager != null) { // mViewPager.setOnPageChangeListener(null); // } if (viewPager.getAdapter() == null) { throw new IllegalStateException(" pager 没有 加入 adapter"); } mViewPager = viewPager; // mViewPager.setOnPageChangeListener(this); invalidate(); post(new Runnable(){ @Override public void run() { if (mFades) { post(mFadeRunnable); } } }); } }

ArrayFragment.java

public class ArrayFragment extends Fragment{ private int position; public ArrayFragment(int position){ this.position = position; } // 返回 viwePager 下面滑动的页面 public static ArrayFragment newInstance(int position){ return new ArrayFragment(position); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void onDestroy() { super.onDestroy(); } // 根据position 返回不同的view @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.layoutaa, null); return view; } }

好了接下来是 布局xml了。

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <!-- 标题 和 标题下面的 指示器 --> <LinearLayout android:layout_width="fill_parent" android:layout_height="35dp" android:orientation="vertical" android:background="@drawable/main_header_background"> <com.viewpagerindicator.TabPageIndicator android:id="@+id/tab_indicator" android:layout_height="wrap_content" android:layout_width="fill_parent"/> <com.test.linepagerindictor.widget.UnderlinePageIndicatorEx android:id="@+id/underline_indicator" android:layout_height="3dip" android:layout_width="fill_parent" android:layout_alignParentBottom="true"/> </LinearLayout> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="fill_parent" android:layout_height="fill_parent"/> </LinearLayout>

接下来设置 滑动指示器的style

<!-- 总 style 直接引用 这个 由 tab style 和 Indicator style 组成 --> <style name="StyledAllIndicators" parent="@android:style/Theme.Light"> <item name="vpiTabPageIndicatorStyle">@style/CustomTabPageIndicator</item> <item name="vpiUnderlinePageIndicatorStyle">@style/CustomUnderlinePageIndicator</item> </style> <!-- tab的 style --> <style name="CustomTabPageIndicator" parent="Widget.TabPageIndicator"> <item name="android:background">#00000000</item> <item name="android:textAppearance">@style/CustomTabPageIndicator_text</item> <item name="android:textColor">@color/selector_tab</item> <item name="android:textSize">20sp</item> <!-- 分割线，可有可无的 --> <item name="android:divider">@drawable/custom_tab_indicator_divider</item> <item name="android:dividerPadding">10dip</item> <item name="android:showDividers">middle</item> <item name="android:paddingTop">4dp</item> <item name="android:paddingLeft">8dp</item> <item name="android:paddingBottom">4dp</item> <item name="android:paddingRight">8dp</item> <item name="android:fadingEdge">horizontal</item> <item name="android:fadingEdgeLength">8dp</item> </style> <style name="CustomTabPageIndicator_text" parent="android:TextAppearance.Medium"> <item name="android:typeface">monospace</item> </style> <!-- 下标的指示器的颜色 --> <style name="CustomUnderlinePageIndicator"> <item name="selectedColor">#EB5548</item> <item name="android:background">#00000000</item> <item name="fadeLength">1000</item> <item name="fadeDelay">1000</item> </style>

selector_tab.xml 这个是 选择器 在style中引用的，是用来切换 被选中的背景色的

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_selected="true" android:color="#91D228" /> <item android:state_focused="true" android:color="#91D228" /> <item android:color="#dddddd" /> </selector>