android 查看聯網狀態



ConnectivityManager cm =(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo netinfo = cm.getActiveNetworkInfo();

if (netinfo != null && netinfo.isConnected())

{
Log.i("NetStatus", "已經聯上網絡");

} else {
Log.i("NetStatus", "沒有聯上網絡");
}