iOS bağlantı türü nasıl belirlenir (Edge, 3G, 4G, Wifi)?

Question

iOS bağlantı türünü nasıl belirleyebilirim?

Cihazımda şu anda Edge, 3G, 4G oder Wifi olup olmadığını öğrenmek istiyorum.

Bu bilgi farklı boyutlarda farklı veriler yüklemem gerekiyor.

Yani, "Edge" bağlantı türüyle 4 MB'lık bir görüntü yüklemek istemiyorum.

Answer 1

CTTelephonyNetworkInfo sınıfını Apple'dan kullanabilirsiniz.

func getNetworkType()->String { 
    do{ 
     let reachability:Reachability = try Reachability.reachabilityForInternetConnection() 
     do{ 
      try reachability.startNotifier() 
      let status = reachability.currentReachabilityStatus 
      if(status == .NotReachable){ 
       return "" 
      }else if (status == .ReachableViaWiFi){ 
       return "Wifi" 
      }else if (status == .ReachableViaWWAN){ 
       let networkInfo = CTTelephonyNetworkInfo() 
       let carrierType = networkInfo.currentRadioAccessTechnology 
       switch carrierType{ 
       case CTRadioAccessTechnologyGPRS?,CTRadioAccessTechnologyEdge?,CTRadioAccessTechnologyCDMA1x?: return "2G" 
       case CTRadioAccessTechnologyWCDMA?,CTRadioAccessTechnologyHSDPA?,CTRadioAccessTechnologyHSUPA?,CTRadioAccessTechnologyCDMAEVDORev0?,CTRadioAccessTechnologyCDMAEVDORevA?,CTRadioAccessTechnologyCDMAEVDORevB?,CTRadioAccessTechnologyeHRPD?: return "3G" 
       case CTRadioAccessTechnologyLTE?: return "4G" 
       default: return "" 
       } 


      }else{ 
       return "" 
      } 
     }catch{ 
      return "" 
     } 

    }catch{ 
     return "" 
    } 


} 

Answer 2

@import : iOS 7+ Bunu ithalat gerekir

bu API kullanabilirsiniz. Objective C

let networkInfo = CTTelephonyNetworkInfo() 
let networkString = networkInfo.currentRadioAccessTechnology 

if networkString == CTRadioAccessTechnologyLTE{ 
    // LTE (4G) 
}else if networkString == CTRadioAccessTechnologyWCDMA{ 
    // 3G 
}else if networkString == CTRadioAccessTechnologyEdge{ 
    // EDGE (2G) 
} 

Answer 3

CoreTelephony.framework gereklidir: Biz şu işlevi kullanabilirsiniz Swift için CoreTelephony

Answer 4

: CoreTelephony @import

ilk ithalat.

Reachability *reachability = [Reachability reachabilityForInternetConnection]; 

    [reachability startNotifier]; 

    NetworkStatus status = [reachability currentReachabilityStatus]; 

    if(status == NotReachable) 
    { 
     //No internet 
    } 
    else if (status == ReachableViaWiFi) 
    { 
     //WiFi 
    } 
    else if (status == ReachableViaWWAN) 
    { 
     CTTelephonyNetworkInfo *netinfo = [[CTTelephonyNetworkInfo alloc] init]; 
     NSString * carrierType = netinfo.currentRadioAccessTechnology; 
     if ([carrierType isEqualToString:CTRadioAccessTechnologyGPRS]) { 
//    @"2G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyEdge]) { 
//    @"2G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyWCDMA]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyHSDPA]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyHSUPA]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyCDMA1x]) { 
//    @"2G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyCDMAEVDORev0]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyCDMAEVDORevA]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyCDMAEVDORevB]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyeHRPD]) { 
//    @"3G"; 
     } else if ([carrierType isEqualToString:CTRadioAccessTechnologyLTE]) { 
//    @"4G"; 
     } 

    } 

Answer 5

import CoreTelephony 

enum RadioAccessTechnology: String { 
    case cdma = "CTRadioAccessTechnologyCDMA1x" 
    case edge = "CTRadioAccessTechnologyEdge" 
    case gprs = "CTRadioAccessTechnologyGPRS" 
    case hrpd = "CTRadioAccessTechnologyeHRPD" 
    case hsdpa = "CTRadioAccessTechnologyHSDPA" 
    case hsupa = "CTRadioAccessTechnologyHSUPA" 
    case lte = "CTRadioAccessTechnologyLTE" 
    case rev0 = "CTRadioAccessTechnologyCDMAEVDORev0" 
    case revA = "CTRadioAccessTechnologyCDMAEVDORevA" 
    case revB = "CTRadioAccessTechnologyCDMAEVDORevB" 
    case wcdma = "CTRadioAccessTechnologyWCDMA" 

    var description: String { 
     switch self { 
     case .gprs, .edge, .cdma: 
      return "2G" 
     case .lte: 
      return "4G" 
     default: 
      return "3G" 
     } 
    } 
}  

// Example: 
let networkInfo = CTTelephonyNetworkInfo() 
let networkString = networkInfo.currentRadioAccessTechnology 
let tecnology = RadioAccessTechnology(rawValue: networkString) 

print(tecnology.description)