Fragment 底部菜单栏

实例讲解一

 实例效果图：

点击wifi“按钮”显示的界面：

项目结构

具体代码编写

1、左边页面布局界面，frag_list.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="无线和网络"
        android:textSize="30sp" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="10dp"
        android:orientation="horizontal" >

        <TextView
            android:id="@+id/wifi"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:text="WI-Fi"
            android:textSize="30sp" />

        <ToggleButton
            android:id="@+id/toggleButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="20dp"
            android:text="开" />
    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="设备"
        android:textSize="30sp" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

    <TextView
        android:id="@+id/saveBut"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:text="存储"
        android:textSize="35sp" />

</LinearLayout>

2、右边页面布局界面，frag_detail.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/right"
    android:orientation="vertical" >

    <RelativeLayout
        android:id="@+id/save"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_margin="10dp"
        android:visibility="gone" >

        <include layout="@layout/save" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/wifi"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_margin="10dp"
        android:visibility="gone" >

        <include layout="@layout/wifi" />
    </RelativeLayout>

</LinearLayout>

3、主布局界面，main.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    tools:context=".AndroidFragmentActivity" >

    <!-- 主頁面 -->
    <!-- 左边页面 -->

    <fragment
        android:id="@+id/frag_list"
        android:name="co.cm.fragement.FragementList"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="2" />

    <!-- 右面页面 -->

    <fragment
        android:id="@+id/frag_detail"
        android:name="co.cm.fragement.FragementDetails"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" />

</LinearLayout>

4、list_item.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/left"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/img"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/txt_title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

5、save.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:text="内部存储空间"
        android:textSize="30sp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dp"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="5dp"
        android:text="1GB/1.98GB"
        android:textSize="20sp" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dp"
        android:text="总容量"
        android:textSize="30sp" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="5dp"
        android:layout_marginLeft="20dp"
        android:layout_marginTop="5dp"
        android:text="1.98GB"
        android:textSize="20sp" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:background="@color/lineColor" />

</LinearLayout>

6、wifi_list：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/wifi_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="qinjin_tp_2" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="信号强度  :" />

        <TextView
            android:id="@+id/wifi_name_state"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="还没有连接" />
    </LinearLayout>

</LinearLayout>

7、wifi.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/wifiLinear"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="MAC地址  :"
                android:textSize="@dimen/textsize" />

            <TextView
                android:id="@+id/mac_address"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="MAC地址 "
                android:textSize="@dimen/textsize" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="接入点的BSSID :"
                android:textSize="@dimen/textsize" />

            <TextView
                android:id="@+id/bssid"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="接入点的BSSID "
                android:textSize="@dimen/textsize" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="IP地址: "
                android:textSize="@dimen/textsize" />

            <TextView
                android:id="@+id/ip_address"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="IP地址 "
                android:textSize="@dimen/textsize" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="id  "
                android:textSize="@dimen/textsize" />

            <TextView
                android:id="@+id/id"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="id "
                android:textSize="@dimen/textsize" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text=" WifiInfo的所有信息包   "
                android:textSize="@dimen/textsize" />

            <TextView
                android:id="@+id/info"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="WifiInfo的所有信息包  "
                android:textSize="@dimen/textsize" />
        </LinearLayout>

        <ListView
            android:id="@+id/listview"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:layout_marginBottom="2dp" >
        </ListView>
    </LinearLayout>

    <TextView
        android:id="@+id/wifiText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="要查看可用的网络，请打开wifi"
        android:textSize="@dimen/textsize" />

</RelativeLayout>

8、主界面类，AndroidFragmentActivity.java：

package co.cm.fragement;

import co.cm.fragement.R;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;

public class AndroidFragmentActivity extends Activity {
        // 主activity
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                WifiAdmin.getWifiAdmin().setmContext(AndroidFragmentActivity.this);
                WifiAdmin.getWifiAdmin().getWifiMeathod();
        }
}

9、左面fragment界面类，FragmentList.java：

package co.cm.fragement;

import co.cm.fragement.R;

import android.app.Fragment;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ToggleButton;

/**
 * @author yuyang
 *        功能描述：左面fragment界面类，该类提供了选项操作
 */
public class FragementList extends Fragment {
        //点击切换到wifi存储界面
        private TextView wifi;
        
        //点击切换到save存储界面
        private TextView saveBut;
        
        //定义右面fragment实例
        private FragementDetails frag_detail;
        
        //打开关闭wifi按钮
        private ToggleButton toggleButton;
                
        //toggleButton按钮是否被点击
        private boolean isChecked = false;
        
        //监听button状态线程标志位
        private boolean butIsRunning = false;

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
                // 在这里初始化fragment的页面
                return inflater.inflate(R.layout.frag_list, container, false);
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
                super.onActivityCreated(savedInstanceState);
                // 由于fragment不是activity，不是oncreated，而是onActivityCreated
                setView();
                setListener();

                startThread();// 启动控制button的线程，当wifi状态不是在1或者3的时候，不可点击，
                // if (frag != null && frag.isInLayout()) {
                // switch (arg2) {
                // case 0:
                // frag.setText("0000");
        }

        /**
         * 给按钮设置监听
         */
        public void setListener() {        
                saveBut.setOnClickListener(new OnClickListener() {
                        @Override
                        public void onClick(View v) {
                                frag_detail.setSaveShow();
                        }
                });
                
                wifi.setOnClickListener(new OnClickListener() {
                        @Override
                        public void onClick(View v) {
                                frag_detail.setWifiShow();
                                Log.i("111", WifiAdmin.getWifiAdmin().checkState() + "===-=-");
                                checktoggleButton();// 当点回到wifi界面时，刷新button的状态
                        }
                });

                toggleButton.setOnClickListener(new OnClickListener() {
                        @Override
                        public void onClick(View v) {
                                Log.i("111", isChecked + "/" + WifiAdmin.getWifiAdmin().checkState());
                                if (isChecked) {
                                        WifiAdmin.getWifiAdmin().OpenWifi();
                                        frag_detail.setWifiShow();
                                        // toggleButton.setText("关闭");
                                        toggleButton.setChecked(false);
                                        isChecked = false;
                                } else {
                                        WifiAdmin.getWifiAdmin().CloseWife();
                                        frag_detail.setWifiShow();
                                        // toggleButton.setText("打开");
                                        toggleButton.setChecked(true);
                                        isChecked = true;
                                }
                                toggleButton.setClickable(false);
                        }
                });
        }

        //
        public void checktoggleButton() {
                if (WifiAdmin.getWifiAdmin().checkState() == 1) {
                        toggleButton.setChecked(true);
                        isChecked = true;
                }
                if (WifiAdmin.getWifiAdmin().checkState() == 3) {
                        toggleButton.setChecked(false);
                        isChecked = false;
                }
        }

        public void setView() {
                wifi = (TextView) getView().findViewById(R.id.wifi);
                toggleButton = (ToggleButton) getView().findViewById(R.id.toggleButton);
                saveBut = (TextView) getView().findViewById(R.id.saveBut);
                
                // 实例化右面界面，以便操纵里面的方法F
                frag_detail = (FragementDetails) getFragmentManager().findFragmentById(R.id.frag_detail);
                
                // 初始化button的装态
                if (WifiAdmin.getWifiAdmin().checkState() == 3) {
                        toggleButton.setChecked(false);
                        isChecked = false;
                }
                if (WifiAdmin.getWifiAdmin().checkState() == 1) {
                        toggleButton.setChecked(true);
                        isChecked = true;
                }
                toggleButton.setClickable(true);
        }

        @Override
        public void onDestroy() {
                frag_detail.stopWifiThread();
                butIsRunning = false;
                super.onDestroy();
        }

        private void startThread() {
                butIsRunning = true;
                new Thread(new Runnable() {

                        @Override
                        public void run() {
                                while (butIsRunning) {
                                        //只有wifi状态改变变化完毕之后才能允许点击按钮
                                        if (WifiAdmin.getWifiAdmin().checkState() == 3) {
                                                if (!isChecked) {
                                                        toggleButton.setClickable(true);
                                                }

                                        } else if (WifiAdmin.getWifiAdmin().checkState() == 1) {
                                                if (isChecked) {
                                                        toggleButton.setClickable(true);
                                                }
                                        }
                                }
                        }
                }).start();
        }

}

10、右面fragment界面类

package co.cm.fragement;

import java.util.ArrayList;
import java.util.List;
import co.cm.fragement.R;
import android.app.Fragment;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;

/**
 * @author yangyu
 *        功能描述：右面fragment界面类，该类实现了右面显示的操作
 */
public class FragementDetails extends Fragment {
        private TextView mac_address, bssid, ip_address, id, info, wifiText;
        
        private ListView listView;
        
        private LinearLayout wifiLinear;
        
        private RelativeLayout save, wifi;
        
        private boolean ThreadFlag = false;
        
        //wifi数据适配器
        private WifiAdapter wifiAdapter;
        
        // 扫描出的网络连接列表
        private List<ScanResult> mWifiList = new ArrayList<ScanResult>();
        
        // 网络连接列表
        private List<WifiConfiguration> mWifiConfiguration = null;
        
        private int nowWifiState = 0;

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
                return inflater.inflate(R.layout.frag_detail, container, false);
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
                super.onActivityCreated(savedInstanceState);
                setView();
                // setListener();
                setWifiShow();

        }

        /**
         * 显示wifi界面
         */
        public void setWifiShow() {        
                //通过隐藏显示来达到不同页面内容的切换
                save.setVisibility(View.GONE);
                wifi.setVisibility(View.VISIBLE);
                stopWifiThread();
                refreshWifi();

        }

        /**
         * 显示保存界面
         */
        public void setSaveShow() {
                stopWifiThread();
                save.setVisibility(View.VISIBLE);
                wifi.setVisibility(View.GONE);
        }

        /**
         * 初始化组件
         */
        public void setView() {
                // -----------------wifi-----------------
                wifiText = (TextView) getView().findViewById(R.id.wifiText);
                mac_address = (TextView) getView().findViewById(R.id.mac_address);
                bssid = (TextView) getView().findViewById(R.id.bssid);
                ip_address = (TextView) getView().findViewById(R.id.ip_address);
                id = (TextView) getView().findViewById(R.id.id);
                info = (TextView) getView().findViewById(R.id.info);
                listView = (ListView) getView().findViewById(R.id.listview);
                wifiLinear = (LinearLayout) getView().findViewById(R.id.wifiLinear);
                save = (RelativeLayout) getView().findViewById(R.id.save);
                wifi = (RelativeLayout) getView().findViewById(R.id.wifi);
                wifiAdapter = new WifiAdapter();
                listView.setAdapter(wifiAdapter);
        }

        private Handler handler = new Handler() {
                @Override
                public void handleMessage(Message msg) {
                        nowWifiState = WifiAdmin.getWifiAdmin().checkState();
                        // 当wifi打开时，刷新wifi列表的内容
                        if (nowWifiState == 3) {
                                mWifiList = WifiAdmin.getWifiAdmin().GetWifiList();
                                // 如果刚开始检测的wifi列表为空，则创建一个实例化的wifi而不是null，负责会在adpter里面报错
                                if (mWifiList != null) {
                                        // 如果wifi列表发生改变，则更新，else不更新
                                        if (!mWifiList.toString().equals(
                                                        WifiAdmin.getWifiAdmin().getLastWifiList().toString())) {
                                                WifiAdmin.getWifiAdmin().setLastWifiList(mWifiList);
                                                wifiAdapter.notifyDate();
                                        }
                                } else {
                                        mWifiList = new ArrayList<ScanResult>();
                                }
                        }
                        refreshMeathod();

                        super.handleMessage(msg);
                }
        };

        /**
         * 刷新wifi的状态 
         */
        public void refreshWifi() {
                new Thread(new Runnable() {
                        @Override
                        public void run() {
                                ThreadFlag = true;
                                while (ThreadFlag) {
                                        // Log.i("111", WifiAdmin.getWifiAdmin().checkState() +
                                        // "!!!");
                                        Message msg = handler.obtainMessage();
                                        handler.sendMessage(msg);
                                        try {
                                                Thread.sleep(1000);
                                        } catch (InterruptedException e) {
                                                e.printStackTrace();
                                        }
                                }
                        }
                }).start();
        }

        public void refreshMeathod() {                
                // 此处可用switch
                if (nowWifiState == 3) {                
                        wifiLinear.setVisibility(View.VISIBLE);
                        wifiText.setVisibility(View.INVISIBLE);
                        mac_address.setText(WifiAdmin.getWifiAdmin().GetMacAddress() + "");
                        bssid.setText(WifiAdmin.getWifiAdmin().GetBSSID() + "");
                        ip_address.setText(WifiAdmin.getWifiAdmin().GetIPAddress() + "");
                        id.setText(WifiAdmin.getWifiAdmin().GetNetworkId() + "");
                        info.setText(WifiAdmin.getWifiAdmin().GetWifiInfo() + "");                        
                } else if (nowWifiState == 1) {
                        wifiText.setVisibility(View.VISIBLE);
                        wifiLinear.setVisibility(View.INVISIBLE);
                        wifiText.setText("要查看可用的网络，请打开wifi");
                } else if (nowWifiState == 2) {
                        wifiText.setVisibility(View.VISIBLE);
                        wifiLinear.setVisibility(View.INVISIBLE);
                        wifiText.setText("wifi正在打开");
                } else if (nowWifiState == 4) {
                        wifiText.setVisibility(View.VISIBLE);
                        wifiLinear.setVisibility(View.INVISIBLE);
                        wifiText.setText("wifi正在关闭");
                } else {
                        wifiText.setVisibility(View.VISIBLE);
                        wifiLinear.setVisibility(View.INVISIBLE);
                        wifiText.setText("我不知道wifi正在做什么");
                }
        }

        public void stopWifiThread() {
                ThreadFlag = false;
        }

        public class WifiAdapter extends BaseAdapter {
                @Override
                public int getCount() {                        
                        return mWifiList.size();
                }

                @Override
                public Object getItem(int position) {
                        return mWifiList.get(position);
                }

                @Override
                public long getItemId(int position) {
                        return position;
                }

                @Override
                public View getView(int position, View convertView, ViewGroup parent) {
                        View view = convertView;

                        final ChatViewHolder vh;

                        if (convertView == null) {
                                vh = new ChatViewHolder();
                                view = View.inflate(WifiAdmin.getWifiAdmin().getmContext(),
                                                R.layout.wifi_list, null);
                                vh.wifi_name = (TextView) view.findViewById(R.id.wifi_name);

                                vh.wifi_name_state = (TextView) view
                                                .findViewById(R.id.wifi_name_state);

                                view.setTag(vh);
                        } else {
                                vh = (ChatViewHolder) view.getTag();
                        }
                        vh.wifi_name.setText(mWifiList.get(position).SSID.toString());// 网络的名字，唯一区别WIFI网络的名字
                        vh.wifi_name_state.setText(mWifiList.get(position).level + "");
                        return view;
                }

                public void notifyDate() {
                        notifyDataSetChanged();
                }

        }

        public class ChatViewHolder {
                TextView wifi_name;// 网络的名字，唯一区别WIFI网络的名字
                TextView wifi_name_state;// 所发现的WIFI网络信号强度
        }

}

11、wifiAdmin类，提供了wifi操作的方法，WifiAdmin.java：

package co.cm.fragement;

import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiManager.WifiLock;
import android.util.Log;

/**
 * @author yangyu
 *        wifiAdmin提供了wifi操作的方法
 */
public class WifiAdmin {
        private static WifiAdmin wifiAdmin;
        
        private WifiManager mWifiManager = null;
        
        private WifiInfo mWifiInfo = null;
        
        // 扫描出的网络连接列表
        private List<ScanResult> mWifiList = new ArrayList<ScanResult>();
        
        // 扫描出的网络连接列表
        private List<ScanResult> lastWifiList = new ArrayList<ScanResult>();
        
        // 网络连接列表
        private List<WifiConfiguration> mWifiConfiguration = null;
        
        private WifiLock mWifiLock = null;
                
        // 上次网络状态
        private int lastWifiState = 0;

        //定义上下文Context
        Context mContext;

        public List<ScanResult> getLastWifiList() {
                return lastWifiList;
        }

        public void setLastWifiList(List<ScanResult> lastWifiList) {
                this.lastWifiList = lastWifiList;
        }

        public int getLastWifiState() {
                return lastWifiState;
        }

        public void setLastWifiState(int lastWifiState) {
                this.lastWifiState = lastWifiState;
        }

        public static WifiAdmin getWifi() {
                return wifiAdmin;
        }

        public Context getmContext() {
                return mContext;
        }

        public void setmContext(Context mContext) {
                this.mContext = mContext;
        }

        public static WifiAdmin getWifiAdmin() {
                if (wifiAdmin == null) {
                        wifiAdmin = new WifiAdmin();

                }
                return wifiAdmin;
        }

        public void getWifiMeathod() {
                mWifiManager = (WifiManager) mContext
                                .getSystemService(mContext.WIFI_SERVICE);
                mWifiInfo = mWifiManager.getConnectionInfo();
        }

        /**
         * 打开wifi
         */
        public void OpenWifi() {
                if (!mWifiManager.isWifiEnabled()) {
                        mWifiManager.setWifiEnabled(true);
                } else {
                        Log.i("111", "open 失败");
                }
        }

        /**
         * 关闭wifi 
         */
        public void CloseWife() {
                if (mWifiManager.isWifiEnabled()) {
                        mWifiManager.setWifiEnabled(false);
                } else {
                        Log.i("111", "close 失败");
                }
        }

        /**
         * 锁定wifi
         */
        public void lockWifi() {
                mWifiLock.acquire();
        }

        public void rlockWifi() {
                if (mWifiLock.isHeld()) {
                        mWifiLock.acquire();
                }
        }

        // 检查当前wifi状态WIFI网卡的状态是由一系列的整形常量来表示的。
        //1.WIFI_STATE_DISABLED : WIFI网卡不可用（1）
        //2.WIFI_STATE_DISABLING : WIFI网卡正在关闭（0）
        //3.WIFI_STATE_ENABLED : WIFI网卡可用（3）
        //4.WIFI_STATE_ENABLING : WIFI网正在打开（2） （WIFI启动需要一段时间）
        //5.WIFI_STATE_UNKNOWN : 未知网卡状态
        public int checkState() {
                return mWifiManager.getWifiState();
        }

        /**
         * 创建一个wifilock
         */
        public void Createwifilock() {
                mWifiLock = mWifiManager.createWifiLock("Testss");
        }

        /**
         * 得到配置好的网络
         * @return
         */
        public List<WifiConfiguration> GetConfinguration() {
                return mWifiConfiguration;
        }

        /**
         * 连接配置好的指定ID的网络
         * @param index
         */
        public void ConnectConfiguration(int index) {
                if (index > mWifiConfiguration.size()) {
                        return;
                }
                mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId,true);
        }

        /**
         * 开始扫描网络
         */
        public void StartScan() {
                mWifiManager.startScan();
                // 得到扫描结果
                mWifiList = mWifiManager.getScanResults();
                // 得到配置好的网络连接
                mWifiConfiguration = mWifiManager.getConfiguredNetworks();
        }

        /**
         * 得到网络列表
         * @return
         */
        public List<ScanResult> GetWifiList() {
                mWifiManager.startScan();
                // 得到扫描结果
                mWifiList = mWifiManager.getScanResults();
                return mWifiList;
        }

        public List<WifiConfiguration> getmWifiConfiguration() {
                return mWifiConfiguration;
        }
        
        /**
         * 查看扫描结果
         */
        public StringBuilder LookUpScan() {
                StringBuilder stringBuilder = new StringBuilder();
                for (int i = 0; i < mWifiList.size(); i++) {
                        stringBuilder.append("Index_" + new Integer(i + 1).toString() + ":");
                        // 将ScanResult信息转换成一个字符串包
                        // 其中把包括：BSSID、SSID、capabilities、frequency、level
                        stringBuilder.append((mWifiList.get(i)).toString());
                        stringBuilder.append("
");
                }
                return stringBuilder;
        }
        
        /**
         * 得到MAC地址
         */
        public String GetMacAddress() {
                return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress();
        }
        
        /**
         * 得到接入点的BSSID
         */
        public String GetBSSID() {
                return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();
        }
        
        /**
         * 得到IP地址
         */
        public int GetIPAddress() {
                return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();
        }
        
        /**
         * 得到连接的ID
         */
        public int GetNetworkId() {
                return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();
        }
        
        /**
         * 得到WifiInfo的所有信息包
         */
        public String GetWifiInfo() {
                return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();
        }
        
        /**
         * 添加一个网络并连接
         */
        public void AddNetwork(WifiConfiguration wcg) {
                int wcgID = mWifiManager.addNetwork(wcg);
                mWifiManager.enableNetwork(wcgID, true);
        }
        
        /**
         * 断开指定ID的网络
         */
        public void DisconnectWifi(int netId) {
                mWifiManager.disableNetwork(netId);
                mWifiManager.disconnect();
        }
}

小结： 当我们需要在一个界面中处理很多事情的时候，可以推荐使用fragment，因为他会把我们的activity分割成很多小块，每个小块都有他的生命周期，非常方便，而有时我们会用单例模式来存储每个页面都有的东西。

实例讲解二

项目的效果图       

            

 项目结构目录

代码具体编写

1、标题栏的布局界面，title_view.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="50dip"
    android:background="@drawable/title_bg"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/left_btn"
        style="@style/Text.Title_Button"
        android:layout_width="wrap_content"
        android:layout_height="35dip"
        android:layout_gravity="center_vertical"
        android:background="@drawable/title_btn_back"
        android:minWidth="60dip" />

    <TextView
        android:id="@+id/title_text"
        style="@style/Text.Title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_weight="1" />

    <Button
        android:id="@+id/right_btn"
        style="@style/Text.Title_Button"
        android:layout_width="wrap_content"
        android:layout_height="35dip"
        android:layout_gravity="center_vertical"
        android:background="@drawable/title_btn"
        android:minWidth="70dip" />

</LinearLayout>

2、首页的fragment页面，这里就列出一个，fragment_home.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <com.eoe.tampletfragment.view.TitleView
        android:id="@+id/title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/fragment_home_text"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/fragment_home_text"
        android:textSize="18sp" />

</LinearLayout>

3、帮助Activity界面，activity_help.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/activity_bg"
    android:orientation="vertical" >

    <com.eoe.tampletfragment.view.TitleView
        android:id="@+id/title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

4、主页面布局，activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/activity_bg"
    android:orientation="vertical" >

    <fragment
        android:id="@+id/fragment_home"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        class="com.eoe.tampletfragment.fragment.HomeFragment" />

    <fragment
        android:id="@+id/fragment_search"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        class="com.eoe.tampletfragment.fragment.SearchFragment" />

    <fragment
        android:id="@+id/fragment_settings"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        class="com.eoe.tampletfragment.fragment.SettingsFragment" />

    <com.eoe.tampletfragment.fragment.FragmentIndicator
        android:id="@+id/indicator"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/tab_footer_bg" />

</LinearLayout>

详细说明：  <1> 主页面MainActivity继承自FragmentActivity类，负责实现导航按钮所对应页面的显示和隐藏。
（详细实现见源码）
  <2> 主页面由底部导航栏和面板组成。  <3> fragment标签所对应Fragment的实现类。
  <4> com.eoe.tampletfragment.fragment.FragmentIndicator标签所对应的是底部导航栏。   
5、自定义顶部工具栏，TitleView.java：

package com.eoe.tampletfragment.view;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.TextView;

import com.eoe.tampletfragment.R;

/**
 * @author yangyu
 *        功能描述：自定义顶部工具栏
 */
public class TitleView extends FrameLayout implements View.OnClickListener {

        private Button mLeftBtn;
        private Button mRightBtn;
        private TextView mTitle;

        private OnLeftButtonClickListener mOnLeftButtonClickListener;
        private OnRightButtonClickListener mOnRightButtonClickListener;

        public interface OnLeftButtonClickListener {
                public void onClick(View button);
        }

        public interface OnRightButtonClickListener {
                public void onClick(View button);
        }

        public void setLeftButton(String text, OnLeftButtonClickListener listener) {
                mLeftBtn.setText(text);
                mLeftBtn.setVisibility(View.VISIBLE);
                mOnLeftButtonClickListener = listener;
        }
        
        public void setLeftButton(int stringID, OnLeftButtonClickListener listener) {
                mLeftBtn.setText(stringID);
                mLeftBtn.setVisibility(View.VISIBLE);
                mOnLeftButtonClickListener = listener;
        }
        
        public void removeLeftButton() {
                mLeftBtn.setText("");
                mLeftBtn.setVisibility(View.INVISIBLE);
                mOnLeftButtonClickListener = null;
        }
        
        public void hiddenLeftButton() {
                mLeftBtn.setVisibility(View.INVISIBLE);
        }
        
        public void showLeftButton() {
                mLeftBtn.setVisibility(View.VISIBLE);
        }
        
        public void setRightButton(String text, OnRightButtonClickListener listener) {
                mRightBtn.setText(text);
                mRightBtn.setVisibility(View.VISIBLE);
                mOnRightButtonClickListener = listener;
        }
        
        public void setRightButton(int stringID, OnRightButtonClickListener listener) {
                mRightBtn.setText(stringID);
                mRightBtn.setVisibility(View.VISIBLE);
                mOnRightButtonClickListener = listener;
        }
        
        public void removeRightButton() {
                mRightBtn.setText("");
                mRightBtn.setVisibility(View.INVISIBLE);
                mOnRightButtonClickListener = null;
        }
        
        public void hiddenRightButton() {
                mRightBtn.setVisibility(View.INVISIBLE);
        }
        
        public void showRightButton() {
                mRightBtn.setVisibility(View.VISIBLE);
        }

        public TitleView(Context context) {
                this(context, null);
        }

        public TitleView(Context context, AttributeSet attrs) {
                this(context, attrs, 0);
        }

        public TitleView(Context context, AttributeSet attrs, int defStyle) {
                super(context, attrs, defStyle);

                LayoutInflater inflater = (LayoutInflater) context
                                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                inflater.inflate(R.layout.title_view, this, true);

                mLeftBtn = (Button) findViewById(R.id.left_btn);
                mLeftBtn.setVisibility(View.INVISIBLE);
                mLeftBtn.setOnClickListener(this);
                mRightBtn = (Button) findViewById(R.id.right_btn);
                mRightBtn.setVisibility(View.INVISIBLE);
                mRightBtn.setOnClickListener(this);
                
                mTitle = (TextView) findViewById(R.id.title_text);
                mTitle.setVisibility(View.INVISIBLE);
        }
        
        public void setTitle(String text) {
                mTitle.setVisibility(View.VISIBLE);
                mTitle.setText(text);
        }
        
        public void setTitle(int stringID) {
                mTitle.setVisibility(View.VISIBLE);
                mTitle.setText(stringID);
        }

        @Override
        public void onClick(View v) {
                switch (v.getId()) {
                case R.id.left_btn:
                        if(mOnLeftButtonClickListener != null)
                                mOnLeftButtonClickListener.onClick(v);
                        break;
                case R.id.right_btn:
                        if(mOnRightButtonClickListener != null)
                                mOnRightButtonClickListener.onClick(v);
                        break;
                }
        }

}

6、自定义底部工具栏，FragmentIndicator.java：

package com.eoe.tampletfragment.fragment;

import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.eoe.tampletfragment.R;

/**
 * @author yangyu
 *        功能描述：自定义底部工具栏
 */
public class FragmentIndicator extends LinearLayout implements OnClickListener {

        private int mDefaultIndicator = 0;

        private static int mCurIndicator;

        private static View[] mIndicators;

        private OnIndicateListener mOnIndicateListener;

        private static final String TAG_ICON_0 = "icon_tag_0";
        private static final String TAG_ICON_1 = "icon_tag_1";
        private static final String TAG_ICON_2 = "icon_tag_2";

        private static final String TAG_TEXT_0 = "text_tag_0";
        private static final String TAG_TEXT_1 = "text_tag_1";
        private static final String TAG_TEXT_2 = "text_tag_2";
        
        private static final int COLOR_UNSELECT = Color.argb(100, 0xff, 0xff, 0xff);
        private static final int COLOR_SELECT = Color.WHITE;

        private FragmentIndicator(Context context) {
                super(context);
        }

        public FragmentIndicator(Context context, AttributeSet attrs) {
                super(context, attrs);

                mCurIndicator = mDefaultIndicator;
                setOrientation(LinearLayout.HORIZONTAL);
                init();
        }

        private View createIndicator(int iconResID, int stringResID, int stringColor, 
                        String iconTag, String textTag) {
                LinearLayout view = new LinearLayout(getContext());
                view.setOrientation(LinearLayout.VERTICAL);
                view.setLayoutParams(new LinearLayout.LayoutParams(
                                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));
                view.setGravity(Gravity.CENTER_HORIZONTAL);

                ImageView iconView = new ImageView(getContext());
                iconView.setTag(iconTag);
                iconView.setLayoutParams(new LinearLayout.LayoutParams(
                                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));
                iconView.setImageResource(iconResID);

                TextView textView = new TextView(getContext());
                textView.setTag(textTag);
                textView.setLayoutParams(new LinearLayout.LayoutParams(
                                LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1));
                textView.setTextColor(stringColor);
                textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
                textView.setText(stringResID);

                view.addView(iconView);
                view.addView(textView);

                return view;

        }

        private void init() {
                mIndicators = new View[3];
                mIndicators[0] = createIndicator(R.drawable.ic_home_focused,
                                R.string.tab_home, COLOR_SELECT, TAG_ICON_0, TAG_TEXT_0);
                mIndicators[0].setBackgroundResource(R.drawable.indic_select);
                mIndicators[0].setTag(Integer.valueOf(0));
                mIndicators[0].setOnClickListener(this);
                addView(mIndicators[0]);
                mIndicators[1] = createIndicator(R.drawable.ic_search_normal,
                                R.string.tab_search, COLOR_UNSELECT, TAG_ICON_1, TAG_TEXT_1);
                mIndicators[1].setBackgroundColor(Color.alpha(0));
                mIndicators[1].setTag(Integer.valueOf(1));
                mIndicators[1].setOnClickListener(this);
                addView(mIndicators[1]);
                mIndicators[2] = createIndicator(R.drawable.ic_settings_normal,
                                R.string.tab_settings, COLOR_UNSELECT, TAG_ICON_2, TAG_TEXT_2);
                mIndicators[2].setBackgroundColor(Color.alpha(0));
                mIndicators[2].setTag(Integer.valueOf(2));
                mIndicators[2].setOnClickListener(this);
                addView(mIndicators[2]);
        }

        public static void setIndicator(int which) {
                // clear previous status.
                mIndicators[mCurIndicator].setBackgroundColor(Color.alpha(0));
                ImageView prevIcon;
                TextView prevText;
                switch(mCurIndicator) {
                case 0:
                        prevIcon =(ImageView) mIndicators[mCurIndicator].findViewWithTag(TAG_ICON_0);
                        prevIcon.setImageResource(R.drawable.ic_home_normal);
                        prevText = (TextView) mIndicators[mCurIndicator].findViewWithTag(TAG_TEXT_0);
                        prevText.setTextColor(COLOR_UNSELECT);
                        break;
                case 1:
                        prevIcon =(ImageView) mIndicators[mCurIndicator].findViewWithTag(TAG_ICON_1);
                        prevIcon.setImageResource(R.drawable.ic_search_normal);
                        prevText = (TextView) mIndicators[mCurIndicator].findViewWithTag(TAG_TEXT_1);
                        prevText.setTextColor(COLOR_UNSELECT);
                        break;
                case 2:
                        prevIcon =(ImageView) mIndicators[mCurIndicator].findViewWithTag(TAG_ICON_2);
                        prevIcon.setImageResource(R.drawable.ic_settings_normal);
                        prevText = (TextView) mIndicators[mCurIndicator].findViewWithTag(TAG_TEXT_2);
                        prevText.setTextColor(COLOR_UNSELECT);
                        break;
                }
                
                // update current status.
                mIndicators[which].setBackgroundResource(R.drawable.indic_select);
                ImageView currIcon;
                TextView currText;
                switch(which) {
                case 0:
                        currIcon =(ImageView) mIndicators[which].findViewWithTag(TAG_ICON_0);
                        currIcon.setImageResource(R.drawable.ic_home_focused);
                        currText = (TextView) mIndicators[which].findViewWithTag(TAG_TEXT_0);
                        currText.setTextColor(COLOR_SELECT);
                        break;
                case 1:
                        currIcon =(ImageView) mIndicators[which].findViewWithTag(TAG_ICON_1);
                        currIcon.setImageResource(R.drawable.ic_search_focused);
                        currText = (TextView) mIndicators[which].findViewWithTag(TAG_TEXT_1);
                        currText.setTextColor(COLOR_SELECT);
                        break;
                case 2:
                        currIcon =(ImageView) mIndicators[which].findViewWithTag(TAG_ICON_2);
                        currIcon.setImageResource(R.drawable.ic_settings_focused);
                        currText = (TextView) mIndicators[which].findViewWithTag(TAG_TEXT_2);
                        currText.setTextColor(COLOR_SELECT);
                        break;
                }
                
                mCurIndicator = which;
        }

        public interface OnIndicateListener {
                public void onIndicate(View v, int which);
        }

        public void setOnIndicateListener(OnIndicateListener listener) {
                mOnIndicateListener = listener;
        }

        @Override
        public void onClick(View v) {
                if (mOnIndicateListener != null) {
                        int tag = (Integer) v.getTag();
                        switch (tag) {
                        case 0:
                                if (mCurIndicator != 0) {
                                        mOnIndicateListener.onIndicate(v, 0);
                                        setIndicator(0);
                                }
                                break;
                        case 1:
                                if (mCurIndicator != 1) {
                                        mOnIndicateListener.onIndicate(v, 1);
                                        setIndicator(1);
                                }
                                break;
                        case 2:
                                if (mCurIndicator != 2) {
                                        mOnIndicateListener.onIndicate(v, 2);
                                        setIndicator(2);
                                }
                                break;
                        default:
                                break;
                        }
                }
        }
}

7、首页fragment页面，HomeFragment.java：

package com.eoe.tampletfragment.fragment;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.eoe.tampletfragment.HelpActivity;
import com.eoe.tampletfragment.R;
import com.eoe.tampletfragment.view.TitleView;
import com.eoe.tampletfragment.view.TitleView.OnLeftButtonClickListener;
import com.eoe.tampletfragment.view.TitleView.OnRightButtonClickListener;

/**
 * @author yangyu
 *        功能描述：首页fragment页面
 */
public class HomeFragment extends Fragment {

        private View mParent;
        
        private FragmentActivity mActivity;
        
        private TitleView mTitle;
        
        private TextView mText;
        
        /**
         * Create a new instance of DetailsFragment, initialized to show the text at
         * 'index'.
         */
        public static HomeFragment newInstance(int index) {
                HomeFragment f = new HomeFragment();

                // Supply index input as an argument.
                Bundle args = new Bundle();
                args.putInt("index", index);
                f.setArguments(args);

                return f;
        }

        public int getShownIndex() {
                return getArguments().getInt("index", 0);
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                        Bundle savedInstanceState) {
                View view = inflater.inflate(R.layout.fragment_home, container, false);
                return view;
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
                super.onActivityCreated(savedInstanceState);
                mActivity = getActivity();
                mParent = getView();

                mTitle = (TitleView) mParent.findViewById(R.id.title);
                mTitle.setTitle(R.string.title_home);
                mTitle.setLeftButton(R.string.exit, new OnLeftButtonClickListener(){

                        @Override
                        public void onClick(View button) {
                                mActivity.finish();
                        }
                        
                });
                mTitle.setRightButton(R.string.help, new OnRightButtonClickListener() {

                        @Override
                        public void onClick(View button) {
                                goHelpActivity();
                        }
                });
                
                mText = (TextView) mParent.findViewById(R.id.fragment_home_text);

        }
        
        private void goHelpActivity() {
                Intent intent = new Intent(mActivity, HelpActivity.class);
                startActivity(intent);
        }

        @Override
        public void onHiddenChanged(boolean hidden) {
                super.onHiddenChanged(hidden);
        }

        @Override
        public void onDestroy() {
                super.onDestroy();
        }

}

8、Activity帮助界面，HelpActivity.java：

package com.eoe.tampletfragment;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Window;

/**
 * @author yangyu
 *        功能描述：帮助Activity界面
 */
public class HelpActivity extends FragmentActivity {

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                requestWindowFeature(Window.FEATURE_NO_TITLE);        
                setContentView(R.layout.activity_help);
        }

}

9、Activity主界面，MainActivity.java：

package com.eoe.tampletfragment;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.view.Window;

import com.eoe.tampletfragment.fragment.FragmentIndicator;
import com.eoe.tampletfragment.fragment.FragmentIndicator.OnIndicateListener;

/**
 * @author yangyu
 *        功能描述：主Activity类，继承自FragmentActivity
 */
public class MainActivity extends FragmentActivity {

        public static Fragment[] mFragments;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                requestWindowFeature(Window.FEATURE_NO_TITLE);
                setContentView(R.layout.activity_main);

                setFragmentIndicator(0);
                
        }

        /**
         * 初始化fragment
         */
        private void setFragmentIndicator(int whichIsDefault) {
                mFragments = new Fragment[3];
                mFragments[0] = getSupportFragmentManager().findFragmentById(R.id.fragment_home);
                mFragments[1] = getSupportFragmentManager().findFragmentById(R.id.fragment_search);
                mFragments[2] = getSupportFragmentManager().findFragmentById(R.id.fragment_settings);
                getSupportFragmentManager().beginTransaction().hide(mFragments[0])
                                .hide(mFragments[1]).hide(mFragments[2]).show(mFragments[whichIsDefault]).commit();

                FragmentIndicator mIndicator = (FragmentIndicator) findViewById(R.id.indicator);
                FragmentIndicator.setIndicator(whichIsDefault);
                mIndicator.setOnIndicateListener(new OnIndicateListener() {
                        @Override
                        public void onIndicate(View v, int which) {
                                getSupportFragmentManager().beginTransaction()
                                                .hide(mFragments[0]).hide(mFragments[1])
                                                .hide(mFragments[2]).show(mFragments[which]).commit();
                        }
                });
        }

        @Override
        protected void onResume() {
                super.onResume();
        }
        
        @Override
        protected void onPause() {
                super.onPause();
        }
        
}