摘要： //ConnectivityManager管理网络连接相关的操作ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);//获取代表联网状态的NetWorkInfo对象NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();//activeNetInfo对象不能为空if(activeNetInfo!=null){//判断是wifi 阅读全文