仿新浪微博底部菜单TabHost

效果图：

main.xml文件的内容：

<?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"
    >
    <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:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0.0"
            android:visibility="gone"/>
        <RadioGroup
            android:id="@+id/main_tab"
            android:background="@drawable/maintab_toolbar_bg"
            android:orientation="horizontal"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="center_vertical"
            android:layout_gravity="bottom">
            <RadioButton
                android:layout_marginTop="2.0dip"
                android:text="@string/main_home"
                android:drawableTop="@drawable/icon_1_n"
                android:id="@+id/radio_button0"
                style="@style/main_tab_bottom"/>
            <RadioButton
                android:layout_marginTop="2.0dip"
                android:text="@string/main_news"
                android:drawableTop="@drawable/icon_2_n"
                android:id="@+id/radio_button1"
                style="@style/main_tab_bottom"/>
            <RadioButton
                android:layout_marginTop="2.0dip"
                android:text="@string/main_my_info"
                android:drawableTop="@drawable/icon_3_n"
                android:id="@+id/radio_button2"
                style="@style/main_tab_bottom"/>
            <RadioButton
                android:layout_marginTop="2.0dip"
                android:text="@string/menu_search"
                android:drawableTop="@drawable/icon_4_n"
                android:id="@+id/radio_button3"
                style="@style/main_tab_bottom"/>
            <RadioButton
                android:layout_marginTop="2.0dip"
                android:text="@string/more"
                android:drawableTop="@drawable/icon_5_n"
                android:id="@+id/radio_button4"
                style="@style/main_tab_bottom"/>
        </RadioGroup>
    </LinearLayout>
</TabHost>

MainTabActivity.java文件内容：
package com.jun.demo2;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.widget.RadioGroup;
import android.widget.TabHost;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.Toast;
public class MainTabActivity extends TabActivity implements OnCheckedChangeListener{
    private RadioGroup mainTab;
    private TabHost tabhost;
    private Intent iHome;
    private Intent iNews;
    private Intent iInfo;
    private Intent iSearch;
    private Intent iMore;

&nbs

补充：移动开发 , Android ,