iOS Get network type

// Get network Type

+ (nsstring *) getnetworkstates{

uiapplication *app = [uiapplicationsharedapplication ];

nsarray *children = [[Appvalueforkeypath:@ "StatusBar"] valueforkeypath:@ "Foregroundview"]subviews];

nsstring *state = [[nsstringalloc] Init ];

int netType =0;

// get to the network return code

for (ID Child in children) {

if ([childiskindofclass:nsclassfromstring (@ "Uistatusbardatanetworkitemview")]) {

// get to status bar

NetType = [[ child Valueforkeypath:@ "Datanetworktype"]intvalue ];

Switch (netType) {

case 0:

state = @" No network " ;

// no network mode

break;

Case 1:

state = @ "2G" ;

break;

case 2:

state = @ "3G" ;

break;

case 3:

state = @ "4G" ;

break;

case 5:

{

state = @ "WIFI" ;

}

break;

default:

break;

}

NSLog(@ "%@", state);

}

}

// based on state selection

return state ;

}

But this method has a bug,wifi ' switch to no network when detected, I hope there is a solution to the great God to tell me

iOS Get network type