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Swift-장치의 WIFI IP 주소 가져 오기
Swift에서 iOS 기기의 IP 주소를 얻어야합니다. 이것은 이것에 대한 다른 질문과 중복되지 않습니다! WiFi IP 주소가없는 경우 WiFi IP 주소 만 가져 오면됩니다. 처리해야합니다. Stack Overflow에 대한 몇 가지 질문이 있지만 ip 주소를 반환하는 함수 만 있습니다. 예를 들어 ( How to get Ip address in swift ) :
func getIFAddresses() -> [String] {
var addresses = [String]()
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
if getifaddrs(&ifaddr) == 0 {
// For each interface ...
for (var ptr = ifaddr; ptr != nil; ptr = ptr.memory.ifa_next) {
let flags = Int32(ptr.memory.ifa_flags)
var addr = ptr.memory.ifa_addr.memory
// Check for running IPv4, IPv6 interfaces. Skip the loopback interface.
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
if addr.sa_family == UInt8(AF_INET) || addr.sa_family == UInt8(AF_INET6) {
// Convert interface address to a human readable string:
var hostname = [CChar](count: Int(NI_MAXHOST), repeatedValue: 0)
if (getnameinfo(&addr, socklen_t(addr.sa_len), &hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST) == 0) {
if let address = String.fromCString(hostname) {
addresses.append(address)
}
}
}
}
}
freeifaddrs(ifaddr)
}
return addresses
}
여기서는 모바일 인터넷의 주소 (제 생각에)와 필요한 WiFi 주소의 두 가지 값을 얻습니다. WiFi IP 주소 만 얻을 수있는 다른 방법이 있습니까?
여러 SO 스레드 (예 : 정확히 iOS 네트워킹 인터페이스 이름을 의미하는 것은 무엇입니까? pdp_ip는 무엇입니까? ap는 무엇입니까? )에 따르면 iOS 장치의 WiFi 인터페이스 이름은 항상 "en0"입니다.
귀하의 코드 (내가 Ip 주소를 신속하게 얻는 방법에서 대답 한 것 같습니다 .)은 실행중인 모든 네트워크 인터페이스 의 IP 주소 목록을 검색합니다 . "en0"인터페이스의 IP 주소 만 반환하도록 쉽게 수정할 수 있으며 실제로 그 스레드에서 원래 답변 한 것입니다 (그리고 이것은 프로그래밍 방식으로 iphone의 IP 주소를 얻는 방법 에 대한 답변의 신속한 번역 일뿐입니다. ) :
// Return IP address of WiFi interface (en0) as a String, or `nil`
func getWiFiAddress() -> String? {
var address : String?
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
if getifaddrs(&ifaddr) == 0 {
// For each interface ...
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr.memory.ifa_next }
let interface = ptr.memory
// Check for IPv4 or IPv6 interface:
let addrFamily = interface.ifa_addr.memory.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
// Check interface name:
if let name = String.fromCString(interface.ifa_name) where name == "en0" {
// Convert interface address to a human readable string:
var hostname = [CChar](count: Int(NI_MAXHOST), repeatedValue: 0)
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.memory.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST)
address = String.fromCString(hostname)
}
}
}
freeifaddrs(ifaddr)
}
return address
}
용법:
if let addr = getWiFiAddress() {
print(addr)
} else {
print("No WiFi address")
}
Swift 3 업데이트 : Swift 3 의 많은 변경 사항에 대한 코드를 채택하는 것 외에도 모든 인터페이스를 반복하면 이제 새로운 일반화 된 sequence()함수를 사용할 수 있습니다 .
마 NOT 추가하는 것을 잊지 #include <ifaddrs.h>당신의 브리지 헤더
// Return IP address of WiFi interface (en0) as a String, or `nil`
func getWiFiAddress() -> String? {
var address : String?
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return nil }
guard let firstAddr = ifaddr else { return nil }
// For each interface ...
for ifptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let interface = ifptr.pointee
// Check for IPv4 or IPv6 interface:
let addrFamily = interface.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
// Check interface name:
let name = String(cString: interface.ifa_name)
if name == "en0" {
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
return address
}
WIFI IP보다 더 많은 것을 찾고 계신 분들은이 코드를 약간 수정할 수 있습니다.
func getAddress(for network: Network) -> String? {
var address: String?
// Get list of all interfaces on the local machine:
var ifaddr: UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return nil }
guard let firstAddr = ifaddr else { return nil }
// For each interface ...
for ifptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let interface = ifptr.pointee
// Check for IPv4 or IPv6 interface:
let addrFamily = interface.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
// Check interface name:
let name = String(cString: interface.ifa_name)
if name == network.rawValue {
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
return address
}
enum Network: String {
case wifi = "en0"
case cellular = "pdp_ip0"
//... case ipv4 = "ipv4"
//... case ipv6 = "ipv6"
}
그런 다음 셀룰러 IP에도 액세스 할 수 있습니다.
guard let wifiIp = getAddress(for: .wifi) else { return }
&
guard let cellularIp = getAddress(for: .cellular) else { return }
브리징 헤더를 만들고 포함 #include <ifaddrs.h>합니다.
그런 다음이 방법을 작성하십시오.
func getIFAddresses() -> [String] {
var addresses = [String]()
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs> = nil
if getifaddrs(&ifaddr) == 0 {
// For each interface ...
for (var ptr = ifaddr; ptr != nil; ptr = ptr.memory.ifa_next) {
let flags = Int32(ptr.memory.ifa_flags)
var addr = ptr.memory.ifa_addr.memory
// Check for running IPv4, IPv6 interfaces. Skip the loopback interface.
if (flags & (IFF_UP|IFF_RUNNING|IFF_LOOPBACK)) == (IFF_UP|IFF_RUNNING) {
if addr.sa_family == UInt8(AF_INET) || addr.sa_family == UInt8(AF_INET6) {
// Convert interface address to a human readable string:
var hostname = [CChar](count: Int(NI_MAXHOST), repeatedValue: 0)
if (getnameinfo(&addr, socklen_t(addr.sa_len), &hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST) == 0) {
if let address = String.fromCString(hostname) {
addresses.append(address)
}
}
}
}
}
freeifaddrs(ifaddr)
}
return addresses
}
내 viewController 에서이 메서드를 호출하면 var arr : NSArray = self.getIFAddresses()내 콘솔에서 완벽한 응답을 얻는 것처럼
IP :( "10.0.0.94")
이 배열에서 원하는 곳에 액세스 할 수 있습니다. 도움이되기를 바랍니다.
Swift 4-장치의 IP 주소 가져 오기 :
#include<ifaddrs.h>브리징 헤더를 추가 하십시오.
이것은 IP 주소를 얻는 데 필요한 프레임 워크입니다.
class func getIPAddress() -> String? {
var address: String?
var ifaddr: UnsafeMutablePointer<ifaddrs>? = nil
if getifaddrs(&ifaddr) == 0 {
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr?.pointee.ifa_next }
let interface = ptr?.pointee
let addrFamily = interface?.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
if let name: String = String(cString: (interface?.ifa_name)!), name == "en0" {
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface?.ifa_addr, socklen_t((interface?.ifa_addr.pointee.sa_len)!), &hostname, socklen_t(hostname.count), nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
}
return address
}
UIDevice강제 풀림을 방지하고 셀룰러 및 유선 IP 주소를 지원하는 Swift 4.2 확장 :
import UIKit
extension UIDevice {
private struct InterfaceNames {
static let wifi = ["en0"]
static let wired = ["en2", "en3", "en4"]
static let cellular = ["pdp_ip0","pdp_ip1","pdp_ip2","pdp_ip3"]
static let supported = wifi + wired + cellular
}
func ipAddress() -> String? {
var ipAddress: String?
var ifaddr: UnsafeMutablePointer<ifaddrs>?
if getifaddrs(&ifaddr) == 0 {
var pointer = ifaddr
while pointer != nil {
defer { pointer = pointer?.pointee.ifa_next }
guard
let interface = pointer?.pointee,
interface.ifa_addr.pointee.sa_family == UInt8(AF_INET) || interface.ifa_addr.pointee.sa_family == UInt8(AF_INET6),
let interfaceName = interface.ifa_name,
let interfaceNameFormatted = String(cString: interfaceName, encoding: .utf8),
InterfaceNames.supported.contains(interfaceNameFormatted)
else { continue }
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr,
socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname,
socklen_t(hostname.count),
nil,
socklen_t(0),
NI_NUMERICHOST)
guard
let formattedIpAddress = String(cString: hostname, encoding: .utf8),
!formattedIpAddress.isEmpty
else { continue }
ipAddress = formattedIpAddress
break
}
freeifaddrs(ifaddr)
}
return ipAddress
}
}
용법:
UIDevice.current.ipAddress()
Wi-Fi, 유선 및 셀룰러에 대한 IPAddress를 얻으려면 (swift 5)
func getIPAddress() -> String {
var address: String?
var ifaddr: UnsafeMutablePointer<ifaddrs>? = nil
if getifaddrs(&ifaddr) == 0 {
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr?.pointee.ifa_next }
let interface = ptr?.pointee
let addrFamily = interface?.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
// wifi = ["en0"]
// wired = ["en2", "en3", "en4"]
// cellular = ["pdp_ip0","pdp_ip1","pdp_ip2","pdp_ip3"]
let name: String = String(cString: (interface!.ifa_name))
if name == "en0" || name == "en2" || name == "en3" || name == "en4" || name == "pdp_ip0" || name == "pdp_ip1" || name == "pdp_ip2" || name == "pdp_ip3" {
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface?.ifa_addr, socklen_t((interface?.ifa_addr.pointee.sa_len)!), &hostname, socklen_t(hostname.count), nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
}
return address ?? ""
}
사용하는 방법
let strIPAddress : String = self.getIPAddress()
print("IPAddress :: \(strIPAddress)")
참고 : 프로젝트의 Bridging-Header 파일에 아래에 추가하십시오.
#include<ifaddrs.h>
아래 코드를 사용하여 IP 주소를 가져올 수 있습니다.
참고 : WiFi가 다른 IP 주소로 변경 될 경우 새 IP 주소를 캡처하도록 연결성을 사용했습니다.
에서
Podfile파일pod 'ReachabilitySwift'그리고install pod에서
AppDelegate.swift파일import ReachabilitySwift참고 : ReachabilitySwift 모듈을 찾을 수 없다는 오류가 표시되면 간단히 복사하여 붙여 넣으십시오. 효과가있다!
didFinishLaunchingOptions함수NotificationCenter.default.addObserver(self, selector: #selector(self.reachabilityChanged), name: ReachabilityChangedNotification, object: reachability) do{ try reachability.startNotifier() } catch { print("could not start reachability notifier") }그런 다음
AppDelegate파일의 코드 아래에 붙여 넣으십시오.func reachabilityChanged(note: NSNotification) { let reachability = note.object as! Reachability if reachability.isReachable { if reachability.isReachableViaWiFi { print("Reachable via WiFi") } else { print("Reachable via Cellular") } setIPAddress() } else { ipAddress = "" // No IP captures print("Network not reachable") } } func setIPAddress() { if let addr = self.getWiFiAddress() { print("ipAddress : \(addr)") ipAddress = addr } else { ipAddress = "" // No IP captures print("No WiFi address") } } // Return IP address of WiFi interface (en0) as a String, or `nil` func getWiFiAddress() -> String? { var address : String? // Get list of all interfaces on the local machine: var ifaddr : UnsafeMutablePointer<ifaddrs>? guard getifaddrs(&ifaddr) == 0 else { return nil } guard let firstAddr = ifaddr else { return nil } // For each interface ... for ifptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) { let interface = ifptr.pointee // Check for IPv4 or IPv6 interface: let addrFamily = interface.ifa_addr.pointee.sa_family if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) { // Check interface name: let name = String(cString: interface.ifa_name) if name == "en0" { // Convert interface address to a human readable string: var addr = interface.ifa_addr.pointee var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST)) getnameinfo(&addr, socklen_t(interface.ifa_addr.pointee.sa_len), &hostname, socklen_t(hostname.count), nil, socklen_t(0), NI_NUMERICHOST) address = String(cString: hostname) } } } freeifaddrs(ifaddr) return address }Bridging-Header 파일에 추가
#include<ifaddrs.h>이 파일이없는 경우 만들 수 있습니다. 이 링크를 확인하십시오.
6.
func applicationWillEnterForeground(_ application: UIApplication) {
// Post notification
NotificationCenter.default.post(name: ReachabilityChangedNotification, object: reachability)
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
관찰자를 제거하려면 다음을 수행하십시오.
reachability.stopNotifier() NSNotificationCenter.defaultCenter().removeObserver(self,name: ReachabilityChangedNotification,object: reachability)
func getIPAddress() -> String {
var address: String = "error"
var interfaces: ifaddrs? = nil
var temp_addr: ifaddrs? = nil
var success: Int = 0
// retrieve the current interfaces - returns 0 on success
success = getifaddrs(interfaces)
if success == 0 {
// Loop through linked list of interfaces
temp_addr = interfaces
while temp_addr != nil {
if temp_addr?.ifa_addr?.sa_family == AF_INET {
// Check if interface is en0 which is the wifi connection on the iPhone
if (String(utf8String: temp_addr?.ifa_name) == "en0") {
// Get NSString from C String
address = String(utf8String: inet_ntoa((temp_addr?.ifa_addr as? sockaddr_in)?.sin_addr))
}
}
temp_addr = temp_addr?.ifa_next
}
}
// Free memory
freeifaddrs(interfaces)
return address
}
여기의 모든 답변은 유선 또는 셀룰러가 아닌 Wi-Fi에 대한 IP 주소 만 제공합니다. 다음 스 니펫은 Wi-Fi / 유선 / 휴대폰 케이스에 사용할 수 있습니다.
func getIPAddressForCellOrWireless()-> String? {
let WIFI_IF : [String] = ["en0"]
let KNOWN_WIRED_IFS : [String] = ["en2", "en3", "en4"]
let KNOWN_CELL_IFS : [String] = ["pdp_ip0","pdp_ip1","pdp_ip2","pdp_ip3"]
var addresses : [String : String] = ["wireless":"",
"wired":"",
"cell":""]
var address: String?
var ifaddr: UnsafeMutablePointer<ifaddrs>? = nil
if getifaddrs(&ifaddr) == 0 {
var ptr = ifaddr
while ptr != nil {
defer { ptr = ptr?.pointee.ifa_next } // memory has been renamed to pointee in swift 3 so changed memory to pointee
let interface = ptr?.pointee
let addrFamily = interface?.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
if let name: String = String(cString: (interface?.ifa_name)!), (WIFI_IF.contains(name) || KNOWN_WIRED_IFS.contains(name) || KNOWN_CELL_IFS.contains(name)) {
// String.fromCString() is deprecated in Swift 3. So use the following code inorder to get the exact IP Address.
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface?.ifa_addr, socklen_t((interface?.ifa_addr.pointee.sa_len)!), &hostname, socklen_t(hostname.count), nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
if WIFI_IF.contains(name){
addresses["wireless"] = address
}else if KNOWN_WIRED_IFS.contains(name){
addresses["wired"] = address
}else if KNOWN_CELL_IFS.contains(name){
addresses["cell"] = address
}
}
}
}
}
freeifaddrs(ifaddr)
var ipAddressString : String?
let wirelessString = addresses["wireless"]
let wiredString = addresses["wired"]
let cellString = addresses["cell"]
if let wirelessString = wirelessString, wirelessString.count > 0{
ipAddressString = wirelessString
}else if let wiredString = wiredString, wiredString.count > 0{
ipAddressString = wiredString
}else if let cellString = cellString, cellString.count > 0{
ipAddressString = cellString
}
return ipAddressString
}
출력으로 IPv4 응답 만 원하는 경우 Martin R의 솔루션을 수정하십시오.
func getWiFiAddress() -> String? {
var address : String?
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return nil }
guard let firstAddr = ifaddr else { return nil }
// For each interface ...
for ifptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let interface = ifptr.pointee
// Check for IPv4 or IPv6 interface:
let addrFamily = interface.ifa_addr.pointee.sa_family
//if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) { // **ipv6 committed
if addrFamily == UInt8(AF_INET){
// Check interface name:
let name = String(cString: interface.ifa_name)
if name == "en0" {
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
return address
}
용법:
if let addr = getWiFiAddress() {
print(addr)
} else {
print("No WiFi address")
}
For Swift on Mac - Swift 4 : This way you can also find out the ip from the Wifi (not only Ethernet)
func getWiFiAddress() -> String? {
var address : String?
// Get list of all interfaces on the local machine:
var ifaddr : UnsafeMutablePointer<ifaddrs>?
guard getifaddrs(&ifaddr) == 0 else { return nil }
guard let firstAddr = ifaddr else { return nil }
// For each interface ...
for ifptr in sequence(first: firstAddr, next: { $0.pointee.ifa_next }) {
let interface = ifptr.pointee
// Check for IPv4 or IPv6 interface:
let addrFamily = interface.ifa_addr.pointee.sa_family
if addrFamily == UInt8(AF_INET) || addrFamily == UInt8(AF_INET6) {
// Check interface name:
let name = String(cString: interface.ifa_name)
if name == "en0" {
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(0), NI_NUMERICHOST)
address = String(cString: hostname)
} else if name == "en1" {
// Convert interface address to a human readable string:
var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
&hostname, socklen_t(hostname.count),
nil, socklen_t(1), NI_NUMERICHOST)
address = String(cString: hostname)
}
}
}
freeifaddrs(ifaddr)
return address
}
참고URL : https://stackoverflow.com/questions/30748480/swift-get-devices-wifi-ip-address
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