Android之——流量管理程序示例

转载请注明出处:http://blog.csdn.net/l1028386804/article/details/47680811

目前，市面上有很多管理手机流量的软件，可以让用户实时获取到自己手机中当前消耗了多少流量，手机中每个应用程序消耗了多少手机流量，那么这些功能Android中是如何实现的呢，这篇文章就是要向大家介绍一下，Android系统中流量管理的功能。那么，就让我们一起来实现这些实用的功能吧。

一、原理

按照惯例，我们还是先来谈谈原理级别的东西。

Android系统中封装了一套流量数据API，这些API可以很好的管理Android系统流量使用情况。我们可以基于这些Android API来实现管理手机流量的功能。这些API很好的封装在了android.net包下的TrafficStats中，主要的方法有

//2g/3g接收的流量TrafficStats.getMobileRxBytes();//2g/3g接收的包信息TrafficStats.getMobileRxPackets();//2g/3g上传的流量TrafficStats.getMobileTxBytes();//2g/3g上传的包信息TrafficStats.getMobileTxPackets();//手机总共接收的流量TrafficStats.getTotalRxBytes();//手机总共上传的流量TrafficStats.getTotalTxBytes();//得到某个应用程程序接收的流量TrafficStats.getUidRxBytes(uid);//得到某个应用程程序接收的流量TrafficStats.getUidTxBytes(uid);

我们就基于这些方法实现一个Android手机流量管理的程序示例。

二、实现

1、创建实体类TrafficInfo

为了更好的提现java面向对象的思想，我将获取的手机应用程序的信息封装成一个javabean，这个javabean实体类封装了应用程序的图标，包名，名称，用户id等信息，

具体实现代码如下:

package cn.lyz.mobilesafe.domain;import android.graphics.drawable.Drawable;/** * 流量信息 * @author liuyazhuang * */public class TrafficInfo {//应用图标private Drawable icon;//app名称private String appname;//包名private String packname;//uidprivate int uid;public TrafficInfo() {super();// TODO Auto-generated constructor stub}public TrafficInfo(Drawable icon, String appname, String packname, int uid) {super();this.icon = icon;this.appname = appname;this.packname = packname;this.uid = uid;}public Drawable getIcon() {return icon;}public void setIcon(Drawable icon) {this.icon = icon;}public String getAppname() {return appname;}public void setAppname(String appname) {this.appname = appname;}public String getPackname() {return packname;}public void setPackname(String packname) {this.packname = packname;}public int getUid() {return uid;}public void setUid(int uid) {this.uid = uid;}@Overridepublic String toString() {return "TrafficInfo [icon=" + icon + ", appname=" + appname+ ", packname=" + packname + ", uid=" + uid + "]";}}

2、获取手机安装的应用程序的工具类TrafficManagerService

这个封装了主要封装了两个方法，一个是查询能够启动的应用程序方法getLauncherTrafficInfos，一个是获取拥有internet权限的应用列表的方法getInternetTrafficInfos，两个方法的返回值都是一个应用程序列表集合List<TrafficInfo>。

具体实现代码如下：

package cn.lyz.mobilesafe.engine;import java.util.ArrayList;import java.util.List;import android.Manifest;import android.content.Context;import android.content.Intent;import android.content.pm.ApplicationInfo;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.ResolveInfo;import android.graphics.drawable.Drawable;import cn.lyz.mobilesafe.domain.TrafficInfo;/** * 获取手机安装的应用程序的的引擎工具类 * @author liuyazhuang * */public class TrafficManagerService {private PackageManager pm;public TrafficManagerService(Context context) {super();pm = context.getPackageManager();}/** * 查询能够启动的应用程序 * @return */public List<TrafficInfo> getLauncherTrafficInfos(){List<TrafficInfo> trafficInfos = new ArrayList<TrafficInfo>();//查询能够启动的应用程序  Intent intent = new Intent();intent.setAction(Intent.ACTION_MAIN);intent.addCategory(Intent.CATEGORY_LAUNCHER);//ResolveInfo  就类似于一个IntentFilterList<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);for(ResolveInfo info:resolveInfos){ApplicationInfo appInfo = info.activityInfo.applicationInfo;Drawable appicon = appInfo.loadIcon(pm);String appname = appInfo.loadLabel(pm).toString();String packageName = appInfo.packageName;int uid = appInfo.uid;trafficInfos.add(new TrafficInfo(appicon, appname, packageName, uid));}return trafficInfos;}/** * 获取拥有internet权限的应用列表 * @return */public List<TrafficInfo> getInternetTrafficInfos(){List<TrafficInfo> trafficInfos = new ArrayList<TrafficInfo>();//获取手机中安装的并且具有权限的应用List<PackageInfo> installedPackages = pm.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES | PackageManager.GET_PERMISSIONS);for(PackageInfo info : installedPackages){//获取权限数组String[] permissions = info.requestedPermissions;if(permissions != null && permissions.length > 0){for(String permission : permissions){if(permission.equals(Manifest.permission.INTERNET)){ApplicationInfo applicationInfo = info.applicationInfo;Drawable icon = applicationInfo.loadIcon(pm);String appname = applicationInfo.loadLabel(pm).toString();String packagename = applicationInfo.packageName;int uid = applicationInfo.uid;TrafficInfo trafficInfo = new TrafficInfo(icon, appname, packagename, uid);trafficInfos.add(trafficInfo);}}}}return trafficInfos;}}

3、创建文本格式化工具类TextFormat

当我们在Android系统中获取到流量信息时，有些流量的单位是byte，有些流量的单位是kb，为了统一显示这些流量信息单位，我在这里写了一个格式化流量单位的工具类。

具体实现代码如下：

package cn.lyz.mobilesafe.utils;import java.text.DecimalFormat;/** * 文本格式化工具类 * @author liuyazhuang * */public class TextFormat {/** * 格式化数据 * @param data * @return */public static String formatByte(long data){DecimalFormat format = new DecimalFormat("##.##");if(data < 1024){return data+"bytes";}else if(data < 1024 * 1024){return format.format(data/1024f) +"KB";}else if(data < 1024 * 1024 * 1024){return format.format(data/1024f/1024f) +"MB";}else if(data < 1024 * 1024 * 1024 * 1024){return format.format(data/1024f/1024f/1024f) +"GB";}else{return "超出统计范围";}}}

4、程序入口TrafficManagerActivity

1)类成员字段

protected static final int SUCCESS_GET_TRAFFICINFO = 0;protected static final int REFRESH_TRAFFIC = 1;private TextView tv_traffic_manager_mobile;private TextView tv_traffic_manager_wifi;private ListView lv_traffic_manager_content;private TrafficManagerService managerService;private List<TrafficInfo> trafficInfos;private List<TrafficInfo> realTrafficInfos;private TrafficManagerAdapter mAdapter;

2)获取手机2g/3g总流量

/** * 获取手机2g/3g总流量 * @return */private long getMobileTotal(){long mobile_rx = TrafficStats.getMobileRxBytes();long mobile_tx = TrafficStats.getMobileTxBytes();return (mobile_rx + mobile_tx) < 0 ? 0 : (mobile_rx + mobile_tx);}

3)获取手机总流量

/** * 获取手机总流量 * @return */private long total(){return TrafficStats.getTotalRxBytes() + TrafficStats.getTotalTxBytes();}

4)获取WIFI总流量

/** * 获取WIFI总流量 * @return */private long getWifiTotal(){return total() - getMobileTotal();}

5)自定义适配器TrafficManagerAdapter

这是个内部类，继承自BaseAdapter，主要实现了将获取到的数据显示到界面上的操作，我们这里用到了ListView的ViewHolder缓存技术。

具体实现代码如下:

static class ViewHolder{ImageView iv_appicon;TextView tv_appname;TextView tv_apptx;TextView tv_apprx;TextView tv_apptarffic;}private class TrafficManagerAdapter extends BaseAdapter{private LayoutInflater mLayoutInflater;public TrafficManagerAdapter(Context context){mLayoutInflater = LayoutInflater.from(context);}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn realTrafficInfos.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn realTrafficInfos.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View view = null;ViewHolder holder = null;if(convertView != null){view = convertView;holder = (ViewHolder) view.getTag();}else{view = mLayoutInflater.inflate(R.layout.traffic_manager_item, null);holder = new ViewHolder();holder.iv_appicon = (ImageView) view.findViewById(R.id.iv_appicon);holder.tv_appname = (TextView) view.findViewById(R.id.tv_appname);holder.tv_apptx = (TextView) view.findViewById(R.id.tv_apptx);holder.tv_apprx = (TextView) view.findViewById(R.id.tv_apprx);holder.tv_apptarffic = (TextView) view.findViewById(R.id.tv_apptarffic);view.setTag(holder);}TrafficInfo info = realTrafficInfos.get(position);holder.iv_appicon.setImageDrawable(info.getIcon());String name = info.getAppname();if(name.length() > 8){name = name.substring(0, 7)+"...";}holder.tv_appname.setText(name);int uid = info.getUid();long tx = TrafficStats.getUidTxBytes(uid);if(tx < 0){tx = 0;}long rx = TrafficStats.getUidRxBytes(uid);if(rx < 0){rx = 0;}long total = tx + rx;holder.tv_apptarffic.setText(TextFormat.formatByte(total));holder.tv_apptx.setText("上传:"+TextFormat.formatByte(tx));holder.tv_apprx.setText("下载:"+TextFormat.formatByte(rx));return view;}}

6)Handler实现

我们通过一个Hanlder来实现主线程与子线程的交互操作，将子线程处理的结果数据，通过Handler与Message机制传递到主线程。

具体实现代码如下:

private Handler mHandler = new Handler(){public void handleMessage(android.os.Message msg) {switch (msg.what) {case SUCCESS_GET_TRAFFICINFO:mAdapter = new TrafficManagerAdapter(TrafficManagerActivity.this);lv_traffic_manager_content.setAdapter(mAdapter);timer = new Timer();timer.schedule(timerTask, 0,2000);break;case REFRESH_TRAFFIC:if(mAdapter != null){mAdapter.notifyDataSetChanged();}break;default:break;}};};

7)实现定时操作

在这个示例程序中，我们需要一个定时器来实时获取手机流量数据，来实现动态实时效果的呈现，所以，我在这里用到了Timer和TimerTask两个工具类，来实现2秒钟向主线程发送一次message消息，由Handler来执行刷新界面显示的效果。

具体实现代码如下：

private Timer timer;private TimerTask timerTask = new TimerTask() {@Overridepublic void run() {Message msg = new Message();msg.what = REFRESH_TRAFFIC;mHandler.sendMessage(msg);}};

8)onCreate方法

这个方法主要实现的功能是初始化页面控件，设置控件事件，在子线程中实现获取手机流量信息等操作。

@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.traffic_manager);tv_traffic_manager_mobile = (TextView) findViewById(R.id.tv_traffic_manager_mobile);tv_traffic_manager_wifi = (TextView) findViewById(R.id.tv_traffic_manager_wifi);lv_traffic_manager_content = (ListView) findViewById(R.id.lv_traffic_manager_content);tv_traffic_manager_mobile.setText(TextFormat.formatByte(getMobileTotal()));tv_traffic_manager_wifi.setText(TextFormat.formatByte(getWifiTotal()));managerService = new TrafficManagerService(this);new Thread(new Runnable() {@Overridepublic void run() {//trafficInfos = managerService.getLauncherTrafficInfos();realTrafficInfos = managerService.getInternetTrafficInfos();//realTrafficInfos = new ArrayList<TrafficInfo>();//for(TrafficInfo info : trafficInfos){//if(TrafficStats.getUidRxBytes(info.getUid()) == -1 && TrafficStats.getUidTxBytes(info.getUid())== -1){////}else{//realTrafficInfos.add(info);//}//}Message msg = new Message();msg.what = SUCCESS_GET_TRAFFICINFO;msg.obj = trafficInfos;mHandler.sendMessage(msg);}}).start();

9)onDestroy方法

我们主要在这个回调方法中实现资源释放的操作。

具体实现代码如下：

@Overrideprotected void onDestroy() {// TODO Auto-generated method stubsuper.onDestroy();if(timer != null){timer.cancel();timer = null;}if(timerTask != null){timerTask.cancel();timerTask = null;}}

10)完整源代码

package com.lyz.traffic.state.activity;import java.util.List;import java.util.Timer;import java.util.TimerTask;import android.app.Activity;import android.content.Context;import android.net.TrafficStats;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.LayoutInflater;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import cn.lyz.mobilesafe.domain.TrafficInfo;import cn.lyz.mobilesafe.engine.TrafficManagerService;import cn.lyz.mobilesafe.utils.TextFormat;/** * 流量管理 * @author liuyazhuang * */public class TrafficManagerActivity extends Activity {protected static final int SUCCESS_GET_TRAFFICINFO = 0;protected static final int REFRESH_TRAFFIC = 1;private TextView tv_traffic_manager_mobile;private TextView tv_traffic_manager_wifi;private ListView lv_traffic_manager_content;private TrafficManagerService managerService;private List<TrafficInfo> trafficInfos;private List<TrafficInfo> realTrafficInfos;private TrafficManagerAdapter mAdapter;private Timer timer;private TimerTask timerTask = new TimerTask() {@Overridepublic void run() {Message msg = new Message();msg.what = REFRESH_TRAFFIC;mHandler.sendMessage(msg);}};private Handler mHandler = new Handler(){public void handleMessage(android.os.Message msg) {switch (msg.what) {case SUCCESS_GET_TRAFFICINFO:mAdapter = new TrafficManagerAdapter(TrafficManagerActivity.this);lv_traffic_manager_content.setAdapter(mAdapter);timer = new Timer();timer.schedule(timerTask, 0,2000);break;case REFRESH_TRAFFIC:if(mAdapter != null){mAdapter.notifyDataSetChanged();}break;default:break;}};};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.traffic_manager);tv_traffic_manager_mobile = (TextView) findViewById(R.id.tv_traffic_manager_mobile);tv_traffic_manager_wifi = (TextView) findViewById(R.id.tv_traffic_manager_wifi);lv_traffic_manager_content = (ListView) findViewById(R.id.lv_traffic_manager_content);tv_traffic_manager_mobile.setText(TextFormat.formatByte(getMobileTotal()));tv_traffic_manager_wifi.setText(TextFormat.formatByte(getWifiTotal()));managerService = new TrafficManagerService(this);new Thread(new Runnable() {@Overridepublic void run() {//trafficInfos = managerService.getLauncherTrafficInfos();realTrafficInfos = managerService.getInternetTrafficInfos();//realTrafficInfos = new ArrayList<TrafficInfo>();//for(TrafficInfo info : trafficInfos){//if(TrafficStats.getUidRxBytes(info.getUid()) == -1 && TrafficStats.getUidTxBytes(info.getUid())== -1){////}else{//realTrafficInfos.add(info);//}//}Message msg = new Message();msg.what = SUCCESS_GET_TRAFFICINFO;msg.obj = trafficInfos;mHandler.sendMessage(msg);}}).start();////2g/3g接收的流量//TrafficStats.getMobileRxBytes();////2g/3g接收的包信息//TrafficStats.getMobileRxPackets();////2g/3g上传的流量//TrafficStats.getMobileTxBytes();////2g/3g上传的包信息//TrafficStats.getMobileTxPackets();////手机总共接收的流量//TrafficStats.getTotalRxBytes();////手机总共上传的流量//TrafficStats.getTotalTxBytes();////得到某个应用程程序接收的流量//TrafficStats.getUidRxBytes(uid);////得到某个应用程程序接收的流量//TrafficStats.getUidTxBytes(uid);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}/** * 获取手机2g/3g总流量 * @return */private long getMobileTotal(){long mobile_rx = TrafficStats.getMobileRxBytes();long mobile_tx = TrafficStats.getMobileTxBytes();return mobile_rx + mobile_tx;}/** * 获取手机总流量 * @return */private long total(){return TrafficStats.getTotalRxBytes() + TrafficStats.getTotalTxBytes();}/** * 获取WIFI总流量 * @return */private long getWifiTotal(){return total() - getMobileTotal();}static class ViewHolder{ImageView iv_appicon;TextView tv_appname;TextView tv_apptx;TextView tv_apprx;TextView tv_apptarffic;}private class TrafficManagerAdapter extends BaseAdapter{private LayoutInflater mLayoutInflater;public TrafficManagerAdapter(Context context){mLayoutInflater = LayoutInflater.from(context);}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn realTrafficInfos.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn realTrafficInfos.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View view = null;ViewHolder holder = null;if(convertView != null){view = convertView;holder = (ViewHolder) view.getTag();}else{view = mLayoutInflater.inflate(R.layout.traffic_manager_item, null);holder = new ViewHolder();holder.iv_appicon = (ImageView) view.findViewById(R.id.iv_appicon);holder.tv_appname = (TextView) view.findViewById(R.id.tv_appname);holder.tv_apptx = (TextView) view.findViewById(R.id.tv_apptx);holder.tv_apprx = (TextView) view.findViewById(R.id.tv_apprx);holder.tv_apptarffic = (TextView) view.findViewById(R.id.tv_apptarffic);view.setTag(holder);}TrafficInfo info = realTrafficInfos.get(position);holder.iv_appicon.setImageDrawable(info.getIcon());String name = info.getAppname();if(name.length() > 8){name = name.substring(0, 7)+"...";}holder.tv_appname.setText(name);int uid = info.getUid();long tx = TrafficStats.getUidTxBytes(uid);if(tx < 0){tx = 0;}long rx = TrafficStats.getUidRxBytes(uid);if(rx < 0){rx = 0;}long total = tx + rx;holder.tv_apptarffic.setText(TextFormat.formatByte(total));holder.tv_apptx.setText("上传:"+TextFormat.formatByte(tx));holder.tv_apprx.setText("下载:"+TextFormat.formatByte(rx));return view;}}@Overrideprotected void onDestroy() {// TODO Auto-generated method stubsuper.onDestroy();if(timer != null){timer.cancel();timer = null;}if(timerTask != null){timerTask.cancel();timerTask = null;}}}

5、布局文件

这里一个是主布局文件traffic_manager.xml和ListView的条目布局文件traffic_manager_item.xml

分别实现如下:

1)traffic_manager.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical" >    <TableLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content" >        <TableRow            android:layout_width="fill_parent"            android:layout_height="wrap_content" >            <TextView                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:gravity="center"                android:text="2g/3g" />            <TextView                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:gravity="center"                android:text="wifi" />        </TableRow>        <TableRow            android:layout_width="fill_parent"            android:layout_height="wrap_content" >            <TextView                android:id="@+id/tv_traffic_manager_mobile"                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:gravity="center"                android:text="200Mb" />            <TextView                android:id="@+id/tv_traffic_manager_wifi"                android:layout_width="0dp"                android:layout_height="wrap_content"                android:layout_weight="1"                android:gravity="center"                android:text="50MB" />        </TableRow>    </TableLayout>    <SlidingDrawer        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:content="@+id/lv_traffic_manager_content"        android:handle="@+id/handle"        android:orientation="vertical" >        <ImageView            android:id="@id/handle"            android:layout_width="30dp"            android:layout_height="30dp"            android:src="@drawable/notification" />        <ListView            android:id="@id/lv_traffic_manager_content"            android:layout_width="fill_parent"            android:layout_height="fill_parent" >        </ListView>    </SlidingDrawer></LinearLayout>

2)traffic_manager_item.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" >    <ImageView        android:id="@+id/iv_appicon"        android:layout_width="35dip"        android:layout_height="35dip"        android:scaleType="fitXY"        android:src="@drawable/ic_launcher" />    <TextView        android:id="@+id/tv_appname"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_toRightOf="@id/iv_appicon"        android:text="我最摇摆"        android:textColor="@android:color/white"        android:textSize="20sp" />    <TextView        android:id="@+id/tv_apptarffic"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:text="20MB"        android:textColor="@android:color/white"        android:textSize="20sp" />    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/tv_appname"        android:layout_toRightOf="@id/iv_appicon"        android:orientation="horizontal" >        <TextView            android:id="@+id/tv_apptx"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginRight="80dp"            android:text="上传：20MB"            android:textSize="14sp" />        <TextView            android:id="@+id/tv_apprx"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="下载:20MB"            android:textSize="14sp" />    </LinearLayout></RelativeLayout>

三、运行效果

四、温馨提示

大家可以到链接http://download.csdn.net/detail/l1028386804/9008451下载完整的Android流量管理程序示例源代码

本实例中，为了方面，我把一些文字直接写在了布局文件中和相关的类中，大家在真实的项目中要把这些文字写在string.xml文件中，在外部引用这些资源，切记，这是作为一个Android程序员最基本的开发常识和规范，我在这里只是为了方便直接写在了类和布局文件中。

一、原理

二、实现

1、创建实体类TrafficInfo

2、获取手机安装的应用程序的工具类TrafficManagerService

3、创建文本格式化工具类TextFormat

4、程序入口TrafficManagerActivity

1)类成员字段

2)获取手机2g/3g总流量

3)获取手机总流量

4)获取WIFI总流量

5)自定义适配器TrafficManagerAdapter

6)Handler实现

7)实现定时操作

8)onCreate方法

9)onDestroy方法

10)完整源代码

5、布局文件

1)traffic_manager.xml

2)traffic_manager_item.xml

三、运行效果

四、温馨提示

更多相关文章

随机推荐