<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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=".MainActivity">

    <TabHost

        android:id="@+id/tabMenu"

        android:layout_width="match_parent"

        android:layout_height="0dp">

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:orientation="vertical">

            <TabWidget

                android:id="@android:id/tabs"

                android:layout_width="match_parent"

                android:layout_height="wrap_content" />

            <FrameLayout

                android:id="@android:id/tabcontent"

                android:layout_width="match_parent"

                android:layout_height="match_parent">

                <LinearLayout

                    android:id="@+id/tab1"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:orientation="vertical">

                </LinearLayout>

                <LinearLayout

                    android:id="@+id/tab2"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:orientation="vertical">

                </LinearLayout>

                <LinearLayout

                    android:id="@+id/tab3"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:orientation="vertical">

                </LinearLayout>

            </FrameLayout>

        </LinearLayout>

    </TabHost>

</android.support.constraint.ConstraintLayout>

package action.sun.com.tabhost;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.util.Log;

import android.widget.TabHost;

public class MainActivity extends AppCompatActivity {

    private TabHost tabhost;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //得到TabHost对象实例

        tabhost =(TabHost) findViewById(R.id.tabMenu);

        //调用 TabHost.setup()

        tabhost.setup();

        //创建Tab标签

        tabhost.addTab(tabhost.newTabSpec("one").setIndicator("红色").setContent(R.id.tab1));

        tabhost.addTab(tabhost.newTabSpec("two").setIndicator("黄色").setContent(R.id.tab2));

        tabhost.addTab(tabhost.newTabSpec("three").setIndicator("黄色").setContent(R.id.tab3));

        tabhost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {

            @Override

            public void onTabChanged(String s) {

                Log.d("xxx", "onTabChanged: ="+s);

                if (s.equals("one")){

                    //可是让viewpage的视图显示出来

                    //viewPager.setCurrentItem(0);

                }else if (s.equals("two")){

                    ////可是让viewpage的视图显示出来

                   // viewPager.setCurrentItem(1);

                }

            }

        });

    }

}