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NetSpeedTest

Android测试网速的APP

首先这个APP是学习网上的开源代码,吸收和优化得到的,所以当然也是开源给大家一起学习的啦
优化的地方有:禁止测试途中再开新线程测试;测试中途退出关闭线程避免后台继续下载;补充连接方式的获取
测网速用到的思路就是有个Info结构体,里面有当前网速speed,已经下载的字节数:hadfinishBytes,总共要下载的字节数:totalBytes   
然后开2个线程,线程A利用java.net的URL类去下载一个文件,例如一张几M大的图片,并且一直修改Info结构体的内容    
线程B就每1秒读一次结构体的speed来更新UI,思路就这样。

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