获取当前网络连接的强度0-100,当前网络类型

#import <dlfcn.h>

- (NSDictionary *)getWifiSignalStrength{

 NSString*networkType = [selfgetNetworkType];

    void *libHandle = dlopen("/System/Library/Frameworks/CoreTelephony.framework/CoreTelephony", RTLD_LAZY);

    int(*CTGetSignalStrength)(void);

    CTGetSignalStrength =dlsym(libHandle,"CTGetSignalStrength");

    intsignalStrengthrr = CTGetSignalStrength();

   return@{@"netWorkType":networkType,@"netWorkStrength":[NSStringstringWithFormat:@"%d",signalStrengthrr]};

}

//获取网络类型---这个可以自己实现

- (NSString *)getNetworkType{

    if([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusNotReachable){

        return@"NONE";

    }else if ([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusUnknown){

        return@"NONE";

    }else if ([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusWWAN2G){

        return@"2G";

    }else if ([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusWWAN3G){

        return@"3G";

    }else if ([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusWWAN4G){

        return@"4G";

    }else if ([NetworkMonitoring sharedNetworkMonitoring].networkStatus == NetworkStatusWiFi){

        return@"WIFI";

    }else{

        return@"NONE";

    }

}