使用 TrafficeStats 和 NetworkStatsManager 的数据使用统计

Question

我开发了 Android 应用程序，它使用 TrafficStats API 在后台服务中获取所有已安装应用程序的数据使用统计信息。本周早些时候，在三星 Galaxy S5 上，在软件更新（即 6.0.1）之后，TrafficStats 总是为每个 uid 返回 0。相同的应用程序在 HUAWEI KIW-L21 和 OS 6.0.1 上完美运行。

我收到了一些使用 API 23 及更高版本的 NetworkStatsManager 类的帖子，一些帖子提到这需要系统级权限。

我也浏览了 NetworkStatsManager 的文档。

任何人都可以成功实施 NetworkStatsManager 以用于总数据和应用程序数据使用吗？

如果有人真的提供帮助，请提前感谢。

Answer 1

所以我将一起展示使用 TrafficeStats 和 NetworkStatsManager

的两种方法

我将获取手机中安装的所有应用程序的 UID，并使用两种方式来使用数据。

你可以参考这个作为一个很好的例子https://github.com/RobertZagorski/NetworkStats 前 5 个方法取自他的代码。

//when using NetworkStatsManager you need the subscriber id 
private String getSubscriberId(Context context, int networkType) {
  if (ConnectivityManager.TYPE_MOBILE == networkType) {
     TelephonyManager tm = (TelephonyManager)context.getSystemService(Context.TELEPHONY_SERVICE);
     return tm.getSubscriberId();
     }
   return "";
}


// to get mobile data recived
public long getPackageRxBytesMobile(Context context,NetworkStatsManager networkStatsManager,int packageUid) {
  NetworkStats networkStats = null;
  networkStats = networkStatsManager.queryDetailsForUid(
                ConnectivityManager.TYPE_MOBILE,
                getSubscriberId(context, ConnectivityManager.TYPE_MOBILE),
                0,
                System.currentTimeMillis(),
                packageUid);
  NetworkStats.Bucket bucket = new NetworkStats.Bucket();
        networkStats.getNextBucket(bucket);
        networkStats.getNextBucket(bucket);
        return bucket.getRxBytes();
  }


// to get mobile data transmitted 
public long getPackageTxBytesMobile(Context context,NetworkStatsManager networkStatsManager,int packageUid) {
  NetworkStats networkStats = null;
  networkStats = networkStatsManager.queryDetailsForUid(
                ConnectivityManager.TYPE_MOBILE,
                getSubscriberId(context, ConnectivityManager.TYPE_MOBILE),
                0,
                System.currentTimeMillis(),
                packageUid);
  NetworkStats.Bucket bucket = new NetworkStats.Bucket();
  networkStats.getNextBucket(bucket);
  return bucket.getTxBytes();
}


// to get wifi data received 
public long getPackageRxBytesWifi(NetworkStatsManager networkStatsManager,int packageUid) {
  NetworkStats networkStats = null;
  networkStats = networkStatsManager.queryDetailsForUid(
                ConnectivityManager.TYPE_WIFI,
                "",
                0,
                System.currentTimeMillis(),
                packageUid);
  NetworkStats.Bucket bucket = new NetworkStats.Bucket();
  networkStats.getNextBucket(bucket);
  return bucket.getRxBytes();
}


// to get wifi data transmitted 
public long getPackageTxBytesWifi(NetworkStatsManager networkStatsManager,int packageUid) {
  NetworkStats networkStats = null;
  networkStats = networkStatsManager.queryDetailsForUid(
                ConnectivityManager.TYPE_WIFI,
                "",
                0,
                System.currentTimeMillis(),
                packageUid);
  NetworkStats.Bucket bucket = new NetworkStats.Bucket();
  networkStats.getNextBucket(bucket);
  return bucket.getTxBytes();
}


// print to log all the data usage value per application
public void printAllDataUsage(){
 PackageManager pm = getPackageManager();
 // get all the applications in the phone
 List<ApplicationInfo> packages = pm.getInstalledApplications(PackageManager.GET_META_DATA);

 NetworkStatsManager networkStatsManager = (NetworkStatsManager) getApplicationContext().getSystemService(Context.NETWORK_STATS_SERVICE);

 for (ApplicationInfo packageInfo : packages) {
     Log.d("MYLOG", String.valueOf(packageInfo.uid));
     Log.d("MYLOG", String.valueOf(packageInfo.name));
     Log.d("MYLOG", String.valueOf(packageInfo.packageName));

     // get data usage from trafficStats
     Log.d("MYLOG", String.valueOf(TrafficStats.getUidRxBytes(packageInfo.uid)));
     Log.d("MYLOG", String.valueOf(TrafficStats.getUidTxBytes(packageInfo.uid)));

     // get data usage from networkStatsManager using mobile
     Log.d("MYLOG", String.valueOf(getPackageRxBytesMobile(this,networkStatsManager,packageInfo.uid)));
     Log.d("MYLOG", String.valueOf(getPackageTxBytesMobile(this,networkStatsManager,packageInfo.uid)));

     // get data usage from networkStatsManager using wifi
     Log.d("MYLOG", String.valueOf(getPackageRxBytesWifi(networkStatsManager,packageInfo.uid)));
     Log.d("MYLOG", String.valueOf(getPackageTxBytesWifi(networkStatsManager,packageInfo.uid)));

  }
}