OBJECTIVE-C determine data network type of the IOS device

Im on a application that receive data from server, the problem was when user connect cellular data to (not 3G or WIFI ), it tak e ages to receive data.

I had implemented this code to Answer but im not sure if it's effective or not, sometimes it's giving me an Accura Te type, and sometimes it don ' t.

Here is my code:

 -(void) Newtworktype {Nsarray *subviews = [[[UIApplication Sharedapplication] valueforkey:@ "StatusBar"] valueforkey:@ "Foregroundview"]subviews]; NSNumber *datanetworkitemview = nil;for (id subview in subviews) {if ([Subview iskindofclass:[nsclassfromstring (@ "UISta        Tusbardatanetworkitemview ") class]) {Datanetworkitemview = Subview;    Break }}switch ([[Datanetworkitemview valueforkey:@ "Datanetworktype"]integervalue]) {case 0:nslog (@ "No WiFi or Cellu        Lar ");    Break        Case 1:nslog (@ "2G");    Break        Case 2:nslog (@ "3G");    Break        Case 3:nslog (@ "4G");    Break        Case 4:nslog (@ "LTE");    Break        Case 5:nslog (@ "Wifi");    Break Default:break;}} 
 
  

Make sure, the is isn't Status bar hidden in your application. If it's not visible it'll always return No wifi or cellular because your C Ode reads the text in the Status bar thats all.

The best-of-the-solve your problem, just make the not hidden then the Status bar application would get the text about th E Network type.

Determine the network type

GPRS 2G (2.5) General Packet Radia Service 114kbps
EDGE 2G (2.75G) Enhanced Data rate for GSM Evolution 384kbps
The UMTS 3G WCDMA 3G Universal Mobile telecommunication System complete 3G Mobile communication technology standard
CDMA 2G Telecom Code Division multiple Access Code Division multiple address
Evdo_0 3G (EVDO full CDMA2000 1xev-do) evolution-data only (Data Optimized) 153.6kps-2.4mbps belongs to 3G
Evdo_a 3G 1.8mbps-3.1mbps 3G Transition, 3.5G
1xRTT 2G CDMA2000 1xRTT (RTT-radio transmission technology) 144kbps 2G Transition,
HSDPA 3.5G High-speed downlink packet access 3.5G WCDMA downlink Packet Access 14.4mbps
HSUPA 3.5G Fast Uplink Packet access high-speed uplink packet access 1.4-5.8 Mbps
HSPA 3G (min hsdpa,hsupa) high speed Packet Access
IDEN 2G Integrated Dispatch Enhanced Networks Integrated Digital-enhanced network (2G, from Wikipedia)
Evdo_b 3G ev-do rev.b 14.7Mbps downlink 3.5G
LTE 4G Long term Evolution fdd-lte and Tdd-lte, 3G transition, upgraded LTE advanced is 4G
EHRPD 3G CDMA2000 to LTE 4G Intermediate product evolved high rate Packet Data HRPD Upgrade
HSPAP 3G HSPAP faster than HSDPA

From IOS 7 on your can use:

CTTelephonyNetworkInfo *telephonyInfo = [CTTelephonyNetworkInfo new];NSLog(@"Current Radio Access Technology: %@", telephonyInfo.currentRadioAccessTechnology);[NSNotificationCenter.defaultCenter addObserverForName:CTRadioAccessTechnologyDidChangeNotification                                                 object:nil                                                  queue:nil                                             usingBlock:^(NSNotification *note) {    NSLog(@"New Radio Access Technology: %@", telephonyInfo.currentRadioAccessTechnology);}];

I have also found this to detect a slow or fast connection:

-(BOOL) Isfast: (nsstring*) Radioaccesstechnology {if ([radioaccesstechnology isequaltostring:    Ctradioaccesstechnologygprs]) {return NO;    } else if ([radioaccesstechnology Isequaltostring:ctradioaccesstechnologyedge]) {return NO;    } else if ([radioaccesstechnology ISEQUALTOSTRING:CTRADIOACCESSTECHNOLOGYWCDMA]) {return YES;    } else if ([radioaccesstechnology ISEQUALTOSTRING:CTRADIOACCESSTECHNOLOGYHSDPA]) {return YES;    } else if ([radioaccesstechnology Isequaltostring:ctradioaccesstechnologyhsupa]) {return YES;    } else if ([radioaccesstechnology isequaltostring:ctradioaccesstechnologycdma1x]) {return YES;    } else if ([radioaccesstechnology isequaltostring:ctradioaccesstechnologycdmaevdorev0]) {return YES;    } else if ([radioaccesstechnology Isequaltostring:ctradioaccesstechnologycdmaevdoreva]) {return YES; } else if ([radioaccesstechnology Isequaltostring:ctradioaccesstechnologycdmaevdorevb]) {return YES;    } else if ([radioaccesstechnology ISEQUALTOSTRING:CTRADIOACCESSTECHNOLOGYEHRPD]) {return YES;    } else if ([radioaccesstechnology Isequaltostring:ctradioaccesstechnologylte]) {return YES; } return YES;