自己写了一个TabHostTest程序，现整理如下：

main.xml布局文件：

[html] < ?xml version="1.0" encoding="utf-8"?>  < TabHost xmlns:android="http://schemas.android.com/apk/res/android"      android:id="@android:id/tabhost"      android:layout_width="match_parent"      android:layout_height="match_parent">        <LinearLayout          android:orientation="vertical"          android:layout_width="match_parent"          android:layout_height="match_parent">            <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="0dip"              android:layout_weight="1"          />      </LinearLayout>  < /TabHost> 

inner.xml文件：

[html] < ?xml version="1.0" encoding="utf-8"?>    < TabHost xmlns:android="http://schemas.android.com/apk/res/android"      android:id="@android:id/tabhost"      android:layout_width="match_parent"      android:layout_height="match_parent">        <LinearLayout          android:orientation="vertical"          android:layout_width="match_parent"          android:layout_height="match_parent">  s          <FrameLayout android:id="@android:id/tabcontent"              android:layout_width="fill_parent"              android:layout_height="0dip"              android:layout_weight="1"          />                    <TabWidget android:id="@android:id/tabs"              android:layout_width="fill_parent"              android:layout_height="wrap_content"          />          </LinearLayout>  < /TabHost>  Main.java （主Activity类）：

[java] package com.android.test;    import android.app.Activity;  import android.app.TabActivity;  import android.content.Intent;  import android.os.Bundle;  import android.provider.CallLog.Calls;  import android.provider.Contacts.Intents.UI;  import android.view.Window;  import android.widget.TabHost;    public class Main extends TabActivity implements TabHost.OnTabChangeListener {      private static final int TAB_INDEX_DIALER = 0;      private static final int TAB_INDEX_CALL_LOG = 1;      private static final int TAB_INDEX_CONTACTS = 2;      private static final int TAB_INDEX_FAVORITES = 3;        private TabHost mTabHost;            @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);            final Intent intent = getIntent();            requestWindowFeature(Window.FEATURE_NO_TITLE);                    setContentView(R.layout.main);            mTabHost = getTabHost();          mTabHost.setOnTabChangedListener(this);            // Setup the tabs          setupDialerTab();          setupCallLogTab();          setupContactsTab();          setupFavoritesTab();            setCurrentTab(intent);      }        public void onTabChanged(String tabId) {           Activity activity = getLocalActivityManager().getActivity(tabId);              if (activity != null) {                  activity.onWindowFocusChanged(true);              }      }       private void setupCallLogTab() {              // Force the class since overriding tab entries doesn't work              Intent intent = new Intent("com.android.phone.action.RECENT_CALLS");                intent.setClass(this, Inner.class);              mTabHost.addTab(mTabHost.newTabSpec("call_log")                      .setIndicator("通话记录",                              getResources().getDrawable(R.drawable.ic_tab_unselected_recent))                      .setContent(intent));          }             private void setupDialerTab() {          Intent intent = new Intent("com.android.phone.action.TOUCH_DIALER");          intent.setClass(this, Inner.class);            mTabHost.addTab(mTabHost.newTabSpec("dialer")                  .setIndicator("拨号",                          getResources().getDrawable(R.drawable.ic_tab_unselected_dialer))                  .setContent(intent));      }        private void setupContactsTab() {          Intent intent = new Intent(UI.LIST_DEFAULT);          intent.setClass(this, Main.class);            mTabHost.addTab(mTabHost.newTabSpec("contacts")                  .setIndicator("通讯录",                          getResources().getDrawable(R.drawable.ic_tab_unselected_contacts))                  .setContent(intent));      }        private void setupFavoritesTab() {          Intent intent = new Intent(UI.LIST_STREQUENT_ACTION);          intent.setClass(this, Inner.class);            mTabHost.addTab(mTabHost.newTabSpec("favorites")                  .setIndicator("收藏",                          getResources().getDrawable(R.drawable.ic_tab_unselected_starred))                  .setContent(intent));      }        /**      * Sets the current tab based on the intent's request type      *      * @param intent Intent that contains information about which tab should be selected      */      private void setCurrentTab(Intent intent) {          // Dismiss menu provided by any children activities          Activity activity = getLocalActivityManager().                  getActivity(mTabHost.getCurrentTabTag());          if (activity != null) {              activity.closeOptionsMenu();          }            // Tell the children activities that they should ignore any possible saved          // state and instead reload their state from the parent's intent          intent.putExtra("", true);            // Choose the tab based on the inbound intent          String componentName = intent.getComponent().getClassName();          if (getClass().getName().equals(componentName)) {              if (false) {                 //in a call, show the dialer tab(which allows going back to the call)                  mTabHost.setCurrentTab(TAB_INDEX_DIALER);              } else if ((intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {                  // launched from history (long-press home) --> nothing to change              } else if (true) {                  // The dialer was explicitly requested                  mTabHost.setCurrentTab(TAB_INDEX_DIALER);              }           }      }  }  Inner.java类：

[java] package com.android.test;    import android.app.TabActivity;  import android.content.Intent;  import android.os.Bundle;  import android.view.Window;  import android.widget.TabHost;  import android.widget.TabWidget;  import android.widget.TextView;    public class Inner extends TabActivity implements TabHost.OnTabChangeListener {      private static final int TAB_INDEX_ALL = 0;      private static final int TAB_INDEX_MISSED = 1;      private static final int TAB_INDEX_OUTGOING = 2;      private static final int TAB_INDEX_RECEIVED = 3;        private TabHost mTabHost;      private TabWidget mTabWidget;            @Override      public void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          requestWindowFeature(Window.FEATURE_NO_TITLE);          setContentView(R.layout.inner);            mTabHost = getTabHost();          mTabHost.setOnTabChangedListener(this);            setupTabs();          mTabWidget = mTabHost.getTabWidget();          mTabWidget.setStripEnabled(false);            for (int i = 0; i < mTabWidget.getChildCount(); i++) {                TextView tv = (TextView) mTabWidget.getChildAt(i).findViewById(                      android.R.id.title);              tv.setTextColor(this.getResources().getColorStateList(                      android.R.color.white));                            tv.setPadding(0, 0, 0,(int) tv.getTextSize());              tv.setText("Tab" + i);              mTabWidget.getChildAt(i).getLayoutParams().height =(int ) (3* tv.getTextSize());                 mTabWidget.getChildAt(i).setBackgroundResource(R.drawable.tab_bg);          }      }        public void onTabChanged(String tabId) {                }        private void setupTabs() {          mTabHost.addTab(mTabHost.newTabSpec("all").setIndicator(                  getString(R.string.inner)).setContent(                  new Intent(this, Other.class)));          mTabHost.addTab(mTabHost.newTabSpec("Missed").setIndicator(                  getString(R.string.inner)).setContent(                  new Intent(this, Other.class)));          mTabHost.addTab(mTabHost.newTabSpec("Outgoing").setIndicator(                  getString(R.string.inner)).setContent(                  new Intent(this, Other.class)));          mTabHost.addTab(mTabHost.newTabSpec("Received").setIndicator(                  getString(R.string.inner)).setContent(                  new Intent(this, Other.class)));        }  }  效果图如下：

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