Android fragment tab

fragment_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <FrameLayout
        android:id="@+id/id_content"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" >
    </FrameLayout>

   <include layout="@layout/bottom_bar"/>

</LinearLayout>

main_tab_01.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ly_main_weixin"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#fcfcfc"
    android:orientation="vertical" >
    
    <include layout="@layout/title_bar"/>

       <TextView 
           android:layout_width="fill_parent"
           android:layout_height="0dp"
           android:layout_weight="1"
           android:gravity="center"
           android:text="this is first tab !"
           android:textColor="#000000"
           android:textSize="30sp"
           />

    

</LinearLayout>

MainTab01.java

package com.example.mainframework02.fragment;

import android.annotation.SuppressLint;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

@SuppressLint("NewApi")
public class MainTab01 extends Fragment
{

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        return inflater.inflate(com.example.mainframework02.R.layout.main_tab_01, container, false);

    }

}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/ly_main_tab_bottom"
    android:layout_width="fill_parent"
    android:layout_height="55dp"
    android:layout_alignParentBottom="true"
    android:background="@drawable/bottom_bar" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="55dp" >

        <LinearLayout
            android:id="@+id/id_tab_bottom_weixin"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:descendantFocusability="beforeDescendants"
            android:gravity="center"
            android:orientation="vertical" >

            <ImageButton
                android:id="@+id/btn_tab_bottom_weixin"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_weixin_pressed" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="微信" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/id_tab_bottom_friend"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:descendantFocusability="beforeDescendants"
            android:gravity="center"
            android:orientation="vertical" >

            <ImageButton
                android:id="@+id/btn_tab_bottom_friend"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_find_frd_normal" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="朋友" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/id_tab_bottom_contact"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:descendantFocusability="beforeDescendants"
            android:gravity="center"
            android:orientation="vertical" >

            <ImageButton
                android:id="@+id/btn_tab_bottom_contact"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_address_normal" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="通讯录" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/id_tab_bottom_setting"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:descendantFocusability="beforeDescendants"
            android:gravity="center"
            android:orientation="vertical" >

            <ImageButton
                android:id="@+id/btn_tab_bottom_setting"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_settings_normal" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="设置" />
        </LinearLayout>
    </LinearLayout>

</RelativeLayout>