Android进阶篇-流量统计

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Android平台在2.2版本之后，系统提供了TrafficStats类来实现流量的统计。

它是根据每个应用的UID来进行划分。

/** *流量统计 */private void FlowCount() {// TODO Auto-generated method stubAlertDialog.Builder builder = new AlertDialog.Builder(SettingActivity.this);builder.setTitle("流量使用情况：");//PackageManager 包管理类PackageManager packageManager = getPackageManager();int PackageUid = 0;long totalRx = 0;long totalTx = 0;long totalFlow = 0;/** * 循环抓紧所有应用的包名 * 和当前应用的包名进行匹配操作 * 把获取到的UID保存到一个临时变量 */for(ApplicationInfo info : packageManager.getInstalledApplications(0)){int uid = info.uid;String packageName = info.packageName;if(packageName.equals("com.easier.assistant")){PackageUid = uid;}}//TrafficStats类根据应用的UID获取到流量的相关数据long recv = TrafficStats.getUidRxBytes(PackageUid);long sent = TrafficStats.getUidTxBytes(PackageUid);if(sent>0){totalTx += sent/1024;if(totalTx>=1024)totalTx = totalTx/1024;}if(recv>0){totalRx += recv/1024;if(totalRx>=1024)totalRx = totalRx/1024;}totalFlow = totalRx + totalTx;if(totalFlow>=1024){totalFlow = totalFlow/1024;builder.setMessage("总使用流量："+totalFlow+"M");}else {builder.setMessage("总使用流量："+totalFlow+"K");}builder.create();builder.show();}