TabLayout和ViewPager的配合使用

效果如图：

         

 

 

1.因为TabLayout是Android Design Support Library官方库的一个控件，所以使用TabLayout时候需要先添加对该库的依赖

 compile 'com.android.support:design:22.2.0'

2.下面是TabLayout和ViewPager配合使用的布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.cxk.myapplication.MainActivity">

    <android.support.design.widget.TabLayout
        android:id="@+id/tablayout"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:background="#1FBCD2"
        app:tabTextAppearance="@style/MyTabLayoutTextAppearance"
        app:tabIndicatorColor="@color/white"
        app:tabSelectedTextColor="@color/white"
        app:tabTextColor="@color/ripple_material_dark"
        app:tabIndicatorHeight="2dp" />

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="fill_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/tablayout"
        android:layout_weight="1" />

</RelativeLayout>

注：

a.必须在根布局下写上 xmlns:app="http://schemas.android.com/apk/res-auto"这句代码，不然无法设置在布局中设置Tablayout的一些属性。

b.以下是Tablayout一些常用属性

app:tabIndicatorColor="@color/white"指示器颜色

app:tabIndicatorHeight="2dp"指示器的宽带

app:tabSelectedTextColor="@color/white"被选中时字体的颜色

app:tabTextColor="@color/ripple_material_dark"未被选中时字体的颜色

app:tabTextAppearance="@style/MyTabLayoutTextAppearance"改变字体的大小（在style.xml下面添加如下代码）

   <style name="MyTabLayoutTextAppearance" parent="TextAppearance.AppCompat.Widget.ActionBar.Title">
        <item name="android:textSize">16sp</item>
    </style>

 3.下面是TabLayout和ViewPager配合使用的JAVA代码

public class MainActivity extends FragmentActivity {
    private TabLayout tablayout;
    private ViewPager viewpager;
    private List<Fragment> list;
    private FragmentManager manager;
    private FragmentTransaction transtion;
    private MyFragmentPageAdapter adapter;
    private List<String> titles;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //先findID
        tablayout = (TabLayout) this.findViewById(R.id.tablayout);
        viewpager = (ViewPager) this.findViewById(R.id.viewpager);
        //将各个标题装在titles里面
        titles = new ArrayList<String>();
        titles.add("第一个");
        titles.add("第二个");
        //将两个Fragment装进集合中
        list = new ArrayList<Fragment>();
        Fragment1 f1 = new Fragment1();
        Fragment2 f2 = new Fragment2();
        list.add(f1);
        list.add(f2);
        //使用manager和transtion提交事务后为viewpager设置一个适配器
        manager = getSupportFragmentManager();
        adapter = new MyFragmentPageAdapter(manager);
        transtion = manager.beginTransaction();
        transtion.commit();
        viewpager.setAdapter(adapter);
        // tablayout.addTab可以将标题添加进Tab里面，true表示默认选中
        tablayout.addTab(tablayout.newTab().setText(titles.get(0)), true);
        tablayout.addTab(tablayout.newTab().setText(titles.get(1)), false);
        //这两个方法是将Tablayout和Viewpager联合起来
        tablayout.setupWithViewPager(viewpager);
        tablayout.setTabsFromPagerAdapter(adapter);
    }

    // 定义一个适配器给ViewPager
    class MyFragmentPageAdapter extends FragmentPagerAdapter {

        public MyFragmentPageAdapter(FragmentManager fm) {
            super(fm);
            // TODO Auto-generated constructor stub
        }

        @Override
        public android.support.v4.app.Fragment getItem(int arg0) {
            // TODO Auto-generated method stub
            return list.get(arg0);
        }

        @Override
        public CharSequence getPageTitle(int position) {
            return titles.get(position);
        }

        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return list.size();
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            // TODO Auto-generated method stub
             super.destroyItem(container, position, object);
        }

    }
}

注：

1.getSupportManager使用该方法需要你继承FragmentActivity。
2.定义的新适配器需要重写getpagerTitle这个方法，不然标题显示不出来。