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;

//uid

private 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;

}

@Override

public 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。

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 getLauncherTrafficInfos(){

List trafficInfos = new ArrayList();

//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IntentFilter

List 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 getInternetTrafficInfos(){

List trafficInfos = new ArrayList();

//获取手机中安装的并且具有权限的应用

List 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 trafficInfos;

private List 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);

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return realTrafficInfos.size();

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return realTrafficInfos.get(position);

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position;

}

@Override

public 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() {

@Override

public 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。

@Override

protected 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() {

@Override

public void run() {

//trafficInfos = managerService.getLauncherTrafficInfos();

realTrafficInfos = managerService.getInternetTrafficInfos();

//realTrafficInfos = new ArrayList();

//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：

@Override

protected void onDestroy() {

// TODO Auto-generated method stub

super.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 trafficInfos;

private List realTrafficInfos;

private TrafficManagerAdapter mAdapter;

private Timer timer;

private TimerTask timerTask = new TimerTask() {

@Override

public 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;

}

};

};

@Override

protected 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() {

@Override

public void run() {

//trafficInfos = managerService.getLauncherTrafficInfos();

realTrafficInfos = managerService.getInternetTrafficInfos();

//realTrafficInfos = new ArrayList();

//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);

}

@Override

public 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);

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return realTrafficInfos.size();

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return realTrafficInfos.get(position);

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position;

}

@Override

public 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;

}

}

@Override

protected void onDestroy() {

// TODO Auto-generated method stub

super.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

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

android:layout_width="fill_parent"

android:layout_height="wrap_content" >

android:layout_width="fill_parent"

android:layout_height="wrap_content" >

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_weight="1"

android:gravity="center"

android:text="2g/3g" />

android:layout_width="0dp"

android:layout_height="wrap_content"

android:layout_weight="1"

android:gravity="center"

android:text="wifi" />

android:layout_width="fill_parent"

android:layout_height="wrap_content" >

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" />

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" />

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:content="@+id/lv_traffic_manager_content"

android:handle="@+id/handle"

android:orientation="vertical" >

android:id="@id/handle"

android:layout_width="30dp"

android:layout_height="30dp"

android:src="@drawable/notification" />

android:id="@id/lv_traffic_manager_content"

android:layout_width="fill_parent"

android:layout_height="fill_parent" >

2)traffic_manager_item.xml

android:layout_width="match_parent"

android:layout_height="match_parent" >

android:id="@+id/iv_appicon"

android:layout_width="35dip"

android:layout_height="35dip"

android:scaleType="fitXY"

android:src="@drawable/ic_launcher" />

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" />

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" />

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" >

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" />

android:id="@+id/tv_apprx"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="下载:20MB"

android:textSize="14sp" />

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。

版权声明：本文为博主原创文章，未经博主允许不得转载。1楼x359981514昨天 20:20不用root?Re: l1028386804昨天 22:16回复x359981514n这个示例没有用到root