TabLayout与ViewPager和Fragment、FragmentPagerAdapter的合用

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.china.anonymous.viewpagedemotwo.MainActivity">

<android.support.design.widget.TabLayout
android:id="@+id/tabs"
app:tabIndicatorColor="@color/colorAccent"
app:tabSelectedTextColor="@color/colorAccent"
app:tabTextColor="@color/colorPrimaryDark"
app:tabMode="fixed"
android:layout_width="match_parent"
android:layout_height="wrap_content"></android.support.design.widget.TabLayout>

<android.support.v4.view.ViewPager
android:id="@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="wrap_content"></android.support.v4.view.ViewPager>

</LinearLayout>

Fragment的布局文件，3个一样的：layout1.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="match_parent"android:layout_height="match_parent"><ImageViewandroid:src="@mipmap/ic_launcher"android:layout_width="wrap_content"android:layout_height="wrap_content"/><TextViewandroid:text="this is tab1111"android:layout_width="wrap_content"android:layout_height="wrap_content"/></LinearLayout>

3个Fragment的文件，3个也是几乎一样的：

注意，这里要导入的是import android.support.v4.app.Fragment;的fragment，而不是android.app.Fragment.因为ViewPager是import android.support.v4.app.Fragment

package com.china.anonymous.viewpagedemotwo;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/*** Created by Anonymous on 2016/1/27.*/public class Tab1 extends Fragment {@Nullable@Overridepublic View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {View view = inflater.inflate(R.layout.layout1, null);return view;}}

mainavtivity.java

package com.china.anonymous.viewpagedemotwo;import android.os.Bundle;import android.support.design.widget.TabLayout;import android.support.v4.app.Fragment;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {private TabLayout tabs;private ViewPager viewPager;private List<String> mTitle = new ArrayList<String>();private List<Fragment> mFragment = new ArrayList<Fragment>();@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();MyAdapter adapter = new MyAdapter(getSupportFragmentManager(), mTitle, mFragment);viewPager.setAdapter(adapter);//为TabLayout设置ViewPagertabs.setupWithViewPager(viewPager);//使用ViewPager的适配器tabs.setTabsFromPagerAdapter(adapter);}//初始化Vprivate void initView() {tabs = (TabLayout) findViewById(R.id.tabs);viewPager = (ViewPager) findViewById(R.id.viewPager);mTitle.add("tab1");mTitle.add("tab2");mTitle.add("tab3");mFragment.add(new Tab1());mFragment.add(new Tab2());mFragment.add(new Tab3());}}

MyAdapter.java

要写上最后一个方法，为tagLayout配置上标题的

package com.china.anonymous.viewpagedemotwo;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentPagerAdapter;import java.util.List;public class MyAdapter extends FragmentPagerAdapter {private List<String> title;private List<Fragment> views;public MyAdapter(FragmentManager fm, List<String> title, List<Fragment> views) {super(fm);this.title = title;this.views = views;}@Overridepublic Fragment getItem(int position) {return views.get(position);}@Overridepublic int getCount() {return views.size();}//配置标题的方法@Overridepublic CharSequence getPageTitle(int position) {return title.get(position);}}

运行结果：