Determine whether the network is 2G or 3G

 determine whether the network is 2G or 3G 

Public static Boolean isconnectionfast (INT type, int subtype) {If (type = connectivitymanager. type_wifi) {system. out. println ("connected via wifi"); Return true;} else if (type = connectivitymanager. type_mobile) {Switch (subtype) {Case telephonymanager. network_type_1xrtt: Return false ;//~ 50-100 kbps case telephonymanager. network_type_cdma: Return false ;//~ 14-64 Kbps case telephonymanager. network_type_edge: Return false ;//~ 50-100 kbps case telephonymanager. network_type_evdo_0: Return true ;//~ 400-1000 kbps case telephonymanager. network_type_evdo_a: Return true ;//~ 600-1400 kbps case telephonymanager. network_type_gprs: Return false ;//~ 100 kbps // case telephonymanager. network_type_hsdpa: // return true ;//~ 2-14 Mbps // case telephonymanager. network_type_hspa: // return true ;//~ 700-1700 kbps // case telephonymanager. network_type_hsupa: // return true ;//~ 1-23 Mbps case telephonymanager. network_type_umts: Return true ;//~ 400-7000 kbps // not available yet in API level 7 case connectivity. network_type_ehrpd: Return true ;//~ 1-2 Mbps case connectivity. network_type_evdo_ B: Return true ;//~ 5 Mbps case connectivity. network_type_hspap: Return true ;//~ 10-20 Mbps case connectivity. network_type_iden: Return false ;//~ 25 kbps case connectivity. network_type_lte: Return true ;//~ 10 + Mbps // unknown case telephonymanager. network_type_unknown: Return false; default: Return false ;}} else {return false ;}}