使用TrafficeStats和NetworkStatsManager的数据使用状态

Question

我开发了安卓应用程序，它使用TrafficStats API获取后台服务中所有已安装应用程序的数据使用统计数据。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。同样的应用程序在华为KIW-L21和OS6.0.1上运行得很好。

我收到了一些关于使用NetworkStatsManager类进行API23及更高版本的文章，有些帖子提到这需要系统级的权限。

我也看过NetworkStatsManager的文档。

有谁能成功地实现NetworkStatsManager的全部和应用的数据使用？

如果有人真的帮忙的话，请提前感谢。

Answer 1

因此，我将同时展示这两种方法，即使用NetworkStatsManager和TrafficeStats。

我将获得UID的所有应用程序安装在电话中，并使用这两种方式的数据使用。

您可以参考这个例子作为一个很好的例子，https://github.com/RobertZagorski/NetworkStats前5种方法是从他的代码中摘取的。

//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)));

  }
}