iOS developed to get WiFi signal strength

Although the various APIs that directly get signal strength are blocked. But there is another kind of black magic that can be acquired. That's traversing the uistatusbar.

- (void) getsignalstrength{uiapplication*app =[UIApplication sharedapplication]; Nsarray*subviews = [[[App Valueforkey:@"StatusBar"] Valueforkey:@"Foregroundview"] subviews]; NSString*datanetworkitemview =Nil;  for(IDSubviewinchsubviews) {        if([Subview iskindofclass:[nsclassfromstring (@"Uistatusbardatanetworkitemview")class]]) {Datanetworkitemview=Subview;  Break; }    }        intSignalstrength = [[Datanetworkitemview valueforkey:@"_wifistrengthbars"] intvalue]; NSLog (@"Signal%d", signalstrength);}

Of course we can also traverse Uistatusbar to get to the network connection type

- (void) getnetworktype{uiapplication*app =[UIApplication sharedapplication]; Nsarray*subviews = [[[App Valueforkeypath:@"StatusBar"] Valueforkeypath:@"Foregroundview"] subviews];  for(IDSubviewinchsubviews) {        if([Subview iskindofclass:nsclassfromstring (@"Uistatusbardatanetworkitemview")]) {            intNetworktype = [[Subview valueforkeypath:@"Datanetworktype"] intvalue]; Switch(networktype) { Case 0: NSLog (@"NONE");  Break;  Case 1: NSLog (@"2G");  Break;  Case 2: NSLog (@"3G");  Break;  Case 3: NSLog (@"4G");  Break;  Case 5: {NSLog (@"WIFI"); }                     Break; default:                     Break; }        }    }}

iOS developed to get WiFi signal strength