检查网络wifi

// check for wifi or 3g?
ConnectivityManager mgrConn = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);?
TelephonyManager mgrTel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);?
if ((mgrConn.getActiveNetworkInfo()!=null && mgrConn.getActiveNetworkInfo().getState()==NetworkInfo.State.CONNECTED)?
? ? ? ?|| mgrTel.getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS) { ?
?...?