最近研究了一下Contacts源码，仿照上面自己写了一个TabHostTest程序，现整理如下：

main.xml布局文件：

android:id="@android:id/tabhost"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:orientation="vertical"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="match_parent"

android:layout_height="wrap_content"

/>

android:layout_width="match_parent"

android:layout_height="0dip"

android:layout_weight="1"

/>

inner.xml文件：

android:id="@android:id/tabhost"

android:layout_width="match_parent"

android:layout_height="match_parent">

android:orientation="vertical"

android:layout_width="match_parent"

android:layout_height="match_parent">

s

android:layout_width="fill_parent"

android:layout_height="0dip"

android:layout_weight="1"

/>

android:layout_width="fill_parent"

android:layout_height="wrap_content"

/>

Main.java (主Activity类)：

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：

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：