第一种：继承TabActivity，从TabActivity中用getTabHost()方法获取TabHost。只要定义具体Tab内容布局就行了.

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/FrameLayout01" android:layout_width="wrap_content" android:layout_height="wrap_content"><TextView android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="所有通话记录"></TextView><TextView android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="已接来电"></TextView><TextView android:id="@+id/TextView03" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="未接来电"></TextView></FrameLayout>

 package com.example.testtabhost;import android.app.TabActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.widget.TabHost;
import android.widget.Toast;
import android.widget.TabHost.OnTabChangeListener;public class MainActivity extends TabActivity {@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);TabHost th = getTabHost();//声明TabHost，然后用LayoutInflater过滤出布局来，给TabHost加上含有Tab页面的FrameLayout//from(this)从这个TabActivity获取LayoutInflater　　//R.layout.main 存放Tab布局//通过TabHost获得存放Tab标签页内容的FrameLayout　　//是否将inflate 拴系到根布局元素上LayoutInflater.from(this).inflate(R.layout.activity_main, th.getTabContentView(), true); //通过TabHost获得存放Tab标签页内容的FrameLayout，//newTabSpecd的作用是获取一个新的 TabHost.TabSpec，并关联到当前 TabHost//setIndicator的作用是指定标签和图标作为选项卡的指示符.//setContent的作用是指定用于显示选项卡内容的视图 ID.th.addTab(th.newTabSpec("all").setIndicator("所有通话记录", getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.TextView01));th.addTab(th.newTabSpec("ok").setIndicator("已接来电",getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.TextView02));th.addTab(th.newTabSpec("cancel").setIndicator("未接来电",getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.TextView03));//setOnTabChangeListener的作业是注册一个回调函数，当任何一个选项卡的选中状态发生改变时调用.  th.setOnTabChangedListener(new OnTabChangeListener() {@Overridepublic void onTabChanged(String tabId) {Toast.makeText(MainActivity.this, tabId, Toast.LENGTH_LONG).show();}});       }
}

第二种：不用继承TabActivity，在布局文件中定义TabHost即可，但是TabWidget的id必须是 
@android:id/tabs，FrameLayout的id必须是@android:id/tabcontent。TabHost的id可以自定义.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/hometabs"android:orientation="vertical"android:layout_width="fill_parent"  android:layout_height="fill_parent"> <TabHost android:id="@+id/tabhost"android:layout_width="wrap_content"android:layout_height="wrap_content"><LinearLayoutandroid:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"><TabWidget android:id="@android:id/tabs" android:orientation="horizontal"android:layout_width="wrap_content"android:layout_height="wrap_content"></TabWidget><FrameLayout android:id="@android:id/tabcontent"android:layout_width="wrap_content"android:layout_height="wrap_content"><TextView android:id="@+id/view1"android:layout_width="fill_parent"android:layout_height="fill_parent"/><TextView android:id="@+id/view2"android:layout_width="fill_parent"android:layout_height="fill_parent"/><TextView android:id="@+id/view3"android:layout_width="fill_parent"android:layout_height="fill_parent"/></FrameLayout></LinearLayout></TabHost>
</LinearLayout>

package com.example.testtabhost2;import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TabHost;
import android.widget.TabWidget;public class MainActivity extends Activity {private static final String TAG = "MainActivity";protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);TabHost tabHost = (TabHost) findViewById(R.id.tabhost);tabHost.setup();TabWidget tabWidget = tabHost.getTabWidget();tabHost.addTab(tabHost.newTabSpec("tab1").setIndicator("tab1", getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.view1));tabHost.addTab(tabHost.newTabSpec("tab3").setIndicator("tab3").setContent(R.id.view3));tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("tab2").setContent(R.id.view2));final int tabs = tabWidget.getChildCount();Log.i(TAG, "***tabWidget.getChildCount() : " + tabs);final int tabWidth = 90;final int tabHeight = 45;for (int i = 0; i < tabs; i++) {/*    final View view = tabWidget.getChildAt(i);view.getLayoutParams().width = tabWidth;view.getLayoutParams().height = tabHeight;final TextView tv = (TextView) view.findViewById(android.R.id.title);tv.setTextColor(this.getResources().getColorStateList(android.R.color.black));MarginLayoutParams tvMLP = (MarginLayoutParams)tv.getLayoutParams();tvMLP.bottomMargin = 8;*/}}}