android 丢包率测试 android 下测试网络的丢包率和延迟

昨天做网络延迟和丢包率，以前没弄过，网上寻找也没找到什么有效的，弄了一下午搞定了，代码如下，希望对大家有帮助，写的不好，还请大家批评指正

String lost = new String();

String delay = new String();

Process p = Runtime.getRuntime().exec("ping -c 4 " + "119.147.15.13");

BufferedReader buf = new BufferedReader(new InputStreamReader(p.getInputStream()));

String str = new String();

while((str=buf.readLine())!=null){

if(str.contains("packet loss")){

int i= str.indexOf("received");

int j= str.indexOf("%");

System.out.println("丢包率:"+str.substring(i+10, j+1));

//System.out.println("丢包率:"+str.substring(j-3, j+1));

lost = str.substring(i+10, j+1);

}

if(str.contains("avg")){

int i=str.indexOf("/", 20);

int j=str.indexOf(".", i);

System.out.println("延迟:"+str.substring(i+1, j));

delay =str.substring(i+1, j);

delay = delay+"ms";

}

}