Tabhost漂亮的自定义实现（背景随着选项卡滑动改变）

在网上找了许多资料都找不到自己想要的。

结果自己实现：

布局文件不帖出来了：

外层一个TabHost: 里面放《Linearlayout》〈TabWidget></Tabwidget><Framlayout></Framlayout></Linearlayout>

 一：继承Tabhost

    主代码：

        tabhost=getTabHost();

        final Resources resources=getResources();

        //主页

        TabHost.TabSpec specHome=tabhost.newTabSpec("home");

        specHome.setIndicator("",resources.getDrawable(android.R.drawable.ic_menu_myplaces));

        home =new Intent(MainActivity.this,HomeActivity.class);

        specHome.setContent(home);

        tabhost.addTab(specHome);

        

        //搜索

        TabHost.TabSpec specSearch=tabhost.newTabSpec("search");

        specSearch.setIndicator("",resources.getDrawable(android.R.drawable.ic_menu_search));

        search=new Intent(MainActivity.this,SearchActivity.class);

        specSearch.setContent(search);

        tabhost.addTab(specSearch);

        

        // 分类

        TabHost.TabSpec specClassify =tabhost.newTabSpec("classify");

        specClassify.setIndicator("",resources.getDrawable(android.R.drawable.ic_menu_week));

        classify=new Intent(MainActivity.this,ClassifyActivity.class);

        specClassify.setContent(classify);

        tabhost.addTab(specClassify);

        

        //购物车

        TabHost.TabSpec specShoppingCart=tabhost.newTabSpec("shoppingCart");

        specShoppingCart.setIndicator("",resources.getDrawable(id))

        

        //百宝箱

        TabHost.TabSpec specTreasureChest=tabhost.newTabSpec("treasureChest");

        specTreasureChest.setIndicator("",resources.getDrawable(android.R.drawable.ic_dialog_dialer));

        treasureChest=new Intent(MainActivity.this, TreasureChestActivity.class);

        specTreasureChest.setContent(treasureChest);

        tabhost.addTab(specTreasureChest);

        

        tabhost.setOnTabChangedListener(new OnTabChangeListener() {

@Override

public void onTabChanged(String tabId) {

Activity activity=getLocalActivityManager().getActivity(tabId);

if(activity!=null)

activity.onWindowFocusChanged(true);

  

}

});

简单的实现到这里结束：

===========

（二）

下面的讲解由许多配置文件完成：

Styles.xml文件

---

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

<resources>

     <style name="main_tab_bottom">

        <item name="android:textSize">@dimen/bottom_tab_font_size</item>

        <item name="android:textColor">#ffffffff</item>

        <item name="android:ellipsize">marquee</item>

        <item name="android:gravity">center_horizontal</item>

        <item name="android:background">@drawable/home_btn_bg</item>

        <item name="android:paddingTop">@dimen/bottom_tab_padding_up</item>

        <item name="android:paddingBottom">2.0dip</item>

        <item name="android:layout_width">fill_parent</item>

        <item name="android:layout_height">wrap_content</item>

        <item name="android:layout_marginBottom">2.0dip</item>

        <item name="android:button">@null</item>

        <item name="android:singleLine">true</item>

        <item name="android:drawablePadding">@dimen/bottom_tab_padding_drawable</item>

        <item name="android:layout_weight">1.0</item>

    </style>

</resources>

ids.xml文件

---

<resources>

    <item type="id" name="main_radio">false</item>

    <item type="id" name="radio_button0">false</item>

    <item type="id" name="radio_button1">false</item>

    <item type="id" name="radio_button2">false</item>

    <item type="id" name="radio_button3">false</item>

    <item type="id" name="radio_button4">false</item>

</resources>

dimens.xml文件

---

<resources> 

    <dimen name="bottom_tab_font_size">10.0sp</dimen>

    <dimen name="bottom_tab_padding_up">5.0dip</dimen>

    <dimen name="bottom_tab_padding_drawable">2.0dip</dimen>

    <dimen name="switch_logo_bottom_padding">30.0sp</dimen>

    <dimen name="widget_height">100.0dip</dimen>

    <dimen name="sta_height">48.0dip</dimen>

    <dimen name="large_padding_length">20.0dip</dimen>

    <dimen name="widget_write_margin_top">19.0dip</dimen>

    <dimen name="widget_write_margin_left">10.0dip</dimen>

    <dimen name="widget_content_margin_top">20.0dip</dimen>

    <dimen name="widget_content_margin_left">10.0dip</dimen>

    <dimen name="widget_logo_size">35.0dip</dimen>

    <dimen name="title_height">74.0dip</dimen>

    <dimen name="new_blog_size">70.0dip</dimen>

    <dimen name="emotion_item_view_height">13.299988dip</dimen>

    <dimen name="splash_test_top_margin_top">20.0dip</dimen>

    <dimen name="splash_test_center_margin_right">0.0dip</dimen>

    <dimen name="title_text_size">20.0sp</dimen>

    <dimen name="normal_padding_length">10.0dip</dimen>

    <dimen name="no_result_padding_length">50.0dip</dimen> 

</resources>

drawables.xml文件

---

<resources> 

    <item type="drawable" name="ltgray">#fff4f4f4</item>

    <item type="drawable" name="ltyellow">#fffff4db</item>

    <item type="drawable" name="black">#ff000000</item>

    <item type="drawable" name="transparent">#00000000</item>

    <item type="drawable" name="widget_edit_block_bg_normal">@android:color/transparent</item>

    <item type="drawable" name="transparent_background">#99000000</item>

    <item type="drawable" name="list_background">#fff4f4f4</item>

    <item type="drawable" name="namcard_picker_bkg_normal">#ff272727</item>

    <item type="drawable" name="namcard_picker_bkg_hover">#ff333333</item> 

</resources>

home_btn_bg.xml文件

---

<selector

  xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_focused="true" android:state_enabled="true" android:state_pressed="false" android:drawable="@drawable/home_btn_bg_s" />

    <item android:state_enabled="true" android:state_pressed="true" android:drawable="@drawable/home_btn_bg_s" />

    <item android:state_enabled="true" android:state_checked="true" android:drawable="@drawable/home_btn_bg_d" />

    <item android:drawable="@drawable/transparent" />

</selector>

main.xml文件

--

<?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="fill_parent"

    android:layout_height="fill_parent" 

    android:background="@color/bisque"> 

      <LinearLayout android:orientation="vertical" 

       android:layout_width="fill_parent" 

       android:layout_height="fill_parent">

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

          android:layout_width="fill_parent" 

          android:layout_height="0.0dip" 

          android:layout_weight="1.0" /> 

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

             android:visibility="gone" 

            android:layout_width="fill_parent" 

         android:layout_height="wrap_content" 

         android:layout_weight="0.0" /> 

            <RadioGroup android:gravity="center_vertical" 

             android:layout_gravity="bottom" 

             android:orientation="horizontal" 

             android:id="@id/main_radio"

             android:background="@drawable/maintab_toolbar_bg" 

             android:layout_width="fill_parent" 

             android:layout_height="wrap_content"> 

                <RadioButton  android:id="@id/radio_button0" android:layout_marginTop="2.0dip" android:text="@string/main_home" android:drawableTop="@drawable/icon_1_n" style="@style/main_tab_bottom" />

                <RadioButton  android:id="@id/radio_button1" android:layout_marginTop="2.0dip" android:text="@string/main_news" android:drawableTop="@drawable/icon_2_n" style="@style/main_tab_bottom" />

                <RadioButton  android:id="@id/radio_button2" android:layout_marginTop="2.0dip" android:text="@string/main_manage_date" android:drawableTop="@drawable/icon_3_n" style="@style/main_tab_bottom" />

                <RadioButton  android:id="@id/radio_button3" android:layout_marginTop="2.0dip" android:text="@string/main_friends" android:drawableTop="@drawable/icon_4_n" style="@style/main_tab_bottom" />

                <RadioButton  android:id="@id/radio_button4" android:layout_marginTop="2.0dip" android:text="@string/more" android:drawableTop="@drawable/icon_5_n" style="@style/main_tab_bottom" /> 

            </RadioGroup> 

    </LinearLayout> 

</TabHost>

接下来是======〉代码部分

MainActivity：

  package cn.activity; 

import android.app.TabActivity;

import android.content.Intent;

import android.os.Bundle;

import android.widget.CompoundButton;

import android.widget.CompoundButton.OnCheckedChangeListener;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.TabHost;

 

public class MainActivity extends TabActivity implements OnCheckedChangeListener{

private TabHost tabhost=null;

 

private Intent home;

private Intent search;

private Intent classify;

private Intent shoppingCart;

private Intent treasureChest;

private RadioButton radio_btn0,radio_btn1,radio_btn2,radio_btn3,radio_btn4;

void init(){

radio_btn0=(RadioButton) findViewById(R.id.radio_button0);

radio_btn1=(RadioButton) findViewById(R.id.radio_button1);

radio_btn2=(RadioButton) findViewById(R.id.radio_button2);

radio_btn3=(RadioButton) findViewById(R.id.radio_button3);

radio_btn4=(RadioButton) findViewById(R.id.radio_button4);

}

void setUp(){

  this.home=new Intent(this, HomeActivity.class);

        this.search=new Intent(this,SearchActivity.class);

        this.classify=new Intent(this,ClassifyActivity.class);

        this.shoppingCart=new Intent(this, ShoppingCartActivity.class);

        this.treasureChest=new Intent(this ,TreasureChestActivity.class);

        

        radio_btn0.setOnCheckedChangeListener(this);

        radio_btn1.setOnCheckedChangeListener(this);

        radio_btn2.setOnCheckedChangeListener(this);

        radio_btn3.setOnCheckedChangeListener(this);

        radio_btn4.setOnCheckedChangeListener(this);

}

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        init();

        setUp();

        setupIntent();

    }

@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

if(isChecked){

switch (buttonView.getId()) {

case R.id.radio_button0:

this.tabhost.setCurrentTabByTag("home");

break;

case R.id.radio_button1:

this.tabhost.setCurrentTabByTag("search");

break;

case R.id.radio_button2:

this.tabhost.setCurrentTabByTag("classify");

break;

case R.id.radio_button3:

this.tabhost.setCurrentTabByTag("shoppingCart");

break;

case R.id.radio_button4:

this.tabhost.setCurrentTabByTag("treasureChest");

break; 

}

}

}

 

   private void setupIntent(){

   this.tabhost=getTabHost();

   TabHost localTabHost=this.tabhost;

   localTabHost.addTab(setTabSpec("home",R.string.main_home, R.drawable.icon_1_n, this.home));

   localTabHost.addTab(setTabSpec("search",R.string.main_search, R.drawable.icon_2_n, this.search));

   localTabHost.addTab(setTabSpec("classify",R.string.main_classify, R.drawable.icon_3_n, this.classify));

   localTabHost.addTab(setTabSpec("shoppingCart",R.string.main_shoppingcart, R.drawable.icon_4_n, this.shoppingCart));

   localTabHost.addTab(setTabSpec("treasureChest",R.string.main_treasure_chest, R.drawable.icon_5_n, this.treasureChest));

   }

   /**

    * example:

    *     TabHost.TabSpec specHome=tabhost.newTabSpec("home");

    *     specHome.setIndicator("",resources.getDrawable(android.R.drawable.ic_menu_myplaces));

    *     home =new Intent(MainActivity.this,HomeActivity.class);

    *     specHome.setContent(home);

    *     tabhost.addTab(specHome);

    * @param tag

    * @param resLabel

    * @param resIcon

    * @param content

    * @return

    */

   private TabHost.TabSpec setTabSpec(String tag,int resLabel,int resIcon,final Intent content){

   return this.tabhost.newTabSpec(tag).setIndicator(getString(resLabel),getResources().getDrawable(resIcon)).setContent(content);

   } 

} 

====================