我有一个商业应用程序,它有一个完全合法的理由来查看它所连接的网络的 SSID:如果它连接到第三方硬件设备的 Adhoc 网络,它需要以不同的方式运行,如果它是连接到互联网。
我所看到的有关获取 SSID 的所有信息都告诉我必须使用 Apple80211,据我所知,它是一个私有库。我还读到,如果我使用私人图书馆,Apple 将不会批准该应用程序。
我是被困在苹果和困难的地方之间,还是我在这里遗漏了什么?
从 iOS 7 或 8 开始,您可以执行此操作(需要 iOS 12+ 的权利,如下所示):
@import SystemConfiguration.CaptiveNetwork;
/** Returns first non-empty SSID network info dictionary.
* @see CNCopyCurrentNetworkInfo */
- (NSDictionary *)fetchSSIDInfo {
NSArray *interfaceNames = CFBridgingRelease(CNCopySupportedInterfaces());
NSLog(@"%s: Supported interfaces: %@", __func__, interfaceNames);
NSDictionary *SSIDInfo;
for (NSString *interfaceName in interfaceNames) {
SSIDInfo = CFBridgingRelease(
CNCopyCurrentNetworkInfo((__bridge CFStringRef)interfaceName));
NSLog(@"%s: %@ => %@", __func__, interfaceName, SSIDInfo);
BOOL isNotEmpty = (SSIDInfo.count > 0);
if (isNotEmpty) {
break;
}
}
return SSIDInfo;
}
示例输出:
2011-03-04 15:32:00.669 ShowSSID[4857:307] -[ShowSSIDAppDelegate fetchSSIDInfo]: Supported interfaces: (
en0
)
2011-03-04 15:32:00.693 ShowSSID[4857:307] -[ShowSSIDAppDelegate fetchSSIDInfo]: en0 => {
BSSID = "ca:fe:ca:fe:ca:fe";
SSID = XXXX;
SSIDDATA = <01234567 01234567 01234567>;
}
请注意,模拟器不支持 if。在您的设备上进行测试。
您必须启用从功能访问 wifi 信息。
重要 要在 iOS 12 及更高版本中使用此功能,请在 Xcode 中为您的应用启用访问 WiFi 信息功能。当您启用此功能时,Xcode 会自动将 Access WiFi Information 权利添加到您的权利文件和 App ID 中。文档链接
斯威夫特 4.2
func getConnectedWifiInfo() -> [AnyHashable: Any]? {
if let ifs = CFBridgingRetain( CNCopySupportedInterfaces()) as? [String],
let ifName = ifs.first as CFString?,
let info = CFBridgingRetain( CNCopyCurrentNetworkInfo((ifName))) as? [AnyHashable: Any] {
return info
}
return nil
}
CNCopySupportedInterfaces 在 iOS 10 中不再被弃用。(API 参考)
您需要导入SystemConfiguration/CaptiveNetwork.h并将SystemConfiguration.framework添加到目标的链接库(在构建阶段)。
这是 swift (RikiRiocma's Answer)中的代码片段:
import Foundation
import SystemConfiguration.CaptiveNetwork
public class SSID {
class func fetchSSIDInfo() -> String {
var currentSSID = ""
if let interfaces = CNCopySupportedInterfaces() {
for i in 0..<CFArrayGetCount(interfaces) {
let interfaceName: UnsafePointer<Void> = CFArrayGetValueAtIndex(interfaces, i)
let rec = unsafeBitCast(interfaceName, AnyObject.self)
let unsafeInterfaceData = CNCopyCurrentNetworkInfo("\(rec)")
if unsafeInterfaceData != nil {
let interfaceData = unsafeInterfaceData! as Dictionary!
currentSSID = interfaceData["SSID"] as! String
}
}
}
return currentSSID
}
}
(重要提示: CNCopySupportedInterfaces 在模拟器上返回 nil。)
对于 Objective-c,请参阅Esad 在此处和下方的回答
+ (NSString *)GetCurrentWifiHotSpotName {
NSString *wifiName = nil;
NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
for (NSString *ifnam in ifs) {
NSDictionary *info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
if (info[@"SSID"]) {
wifiName = info[@"SSID"];
}
}
return wifiName;
}
自 iOS 9 起,强制网络已弃用*。(来源)
*在 iOS 10 中不再被弃用,见上文。
建议您使用 NEHotspotHelper ( source )
您需要通过 networkextension@apple.com 向苹果发送电子邮件并请求授权。(来源)
示例代码(不是我的代码。见 Pablo A 的回答):
for(NEHotspotNetwork *hotspotNetwork in [NEHotspotHelper supportedNetworkInterfaces]) {
NSString *ssid = hotspotNetwork.SSID;
NSString *bssid = hotspotNetwork.BSSID;
BOOL secure = hotspotNetwork.secure;
BOOL autoJoined = hotspotNetwork.autoJoined;
double signalStrength = hotspotNetwork.signalStrength;
}
旁注:是的,他们在 iOS 9 中弃用了 CNCopySupportedInterfaces 并在 iOS 10 中改变了他们的立场。我与一位 Apple 网络工程师进行了交谈,在这么多人提交 Radars 并在 Apple 开发者论坛上谈论这个问题之后,他们的立场发生了逆转。
这是清理后的 ARC 版本,基于 @elsurudo 的代码:
- (id)fetchSSIDInfo {
NSArray *ifs = (__bridge_transfer NSArray *)CNCopySupportedInterfaces();
NSLog(@"Supported interfaces: %@", ifs);
NSDictionary *info;
for (NSString *ifnam in ifs) {
info = (__bridge_transfer NSDictionary *)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
NSLog(@"%@ => %@", ifnam, info);
if (info && [info count]) { break; }
}
return info;
}
这适用于我的设备(不是模拟器)。确保添加系统配置框架。
#import <SystemConfiguration/CaptiveNetwork.h>
+ (NSString *)currentWifiSSID {
// Does not work on the simulator.
NSString *ssid = nil;
NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
for (NSString *ifnam in ifs) {
NSDictionary *info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
if (info[@"SSID"]) {
ssid = info[@"SSID"];
}
}
return ssid;
}
此代码可以很好地获取 SSID。
#import <SystemConfiguration/CaptiveNetwork.h>
@implementation IODAppDelegate
@synthesize window = _window;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
CFArrayRef myArray = CNCopySupportedInterfaces();
CFDictionaryRef myDict = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
NSLog(@"Connected at:%@",myDict);
NSDictionary *myDictionary = (__bridge_transfer NSDictionary*)myDict;
NSString * BSSID = [myDictionary objectForKey:@"BSSID"];
NSLog(@"bssid is %@",BSSID);
// Override point for customization after application launch.
return YES;
}
这是结果:
Connected at:{
BSSID = 0;
SSID = "Eqra'aOrange";
SSIDDATA = <45717261 27614f72 616e6765>;
}
如果您运行的是 iOS 12,则需要执行额外的步骤。我一直在努力让这段代码工作,最后在 Apple 的网站上找到了这个:“重要的是要在 iOS 12 及更高版本中使用此功能,请在 Xcode 中为您的应用启用 Access WiFi Information 功能。启用此功能时,Xcode 会自动将访问 WiFi 信息权利添加到您的权利文件和应用程序 ID。” https://developer.apple.com/documentation/systemconfiguration/1614126-cncopycurrentnetworkinfo
请参阅 CaptiveNetwork 中的 CNCopyCurrentNetworkInfo:http: //developer.apple.com/library/ios/#documentation/SystemConfiguration/Reference/CaptiveNetworkRef/Reference/reference.html。
这是简短而甜蜜的 Swift 版本。
记得链接并导入框架:
import UIKit
import SystemConfiguration.CaptiveNetwork
定义方法:
func fetchSSIDInfo() -> CFDictionary? {
if let
ifs = CNCopySupportedInterfaces().takeUnretainedValue() as? [String],
ifName = ifs.first,
info = CNCopyCurrentNetworkInfo((ifName as CFStringRef))
{
return info.takeUnretainedValue()
}
return nil
}
需要时调用该方法:
if let
ssidInfo = fetchSSIDInfo() as? [String:AnyObject],
ssID = ssidInfo["SSID"] as? String
{
println("SSID: \(ssID)")
} else {
println("SSID not found")
}
如其他地方所述,这仅适用于您的 iDevice。当不在 WiFi 上时,该方法将返回 nil - 因此是可选的。
从 iOS 13 开始,您的应用还需要核心位置访问权限才能使用该CNCopyCurrentNetworkInfo
功能,除非它配置了当前网络或具有 VPN 配置:
所以这就是你需要的(见苹果文档):
- 链接CoreLocation.framework
库
-在 Info.plist 中添加location-services
为键/UIRequiredDeviceCapabilities
值 - 在Info.plist 中添加
一个NSLocationWhenInUseUsageDescription
键/值,描述您的应用程序需要核心位置的原因
- 添加“访问 WiFi您的应用程序的“信息”权利
现在作为一个 Objective-C 示例,在使用以下命令读取网络信息之前,首先检查位置访问是否已被接受CNCopyCurrentNetworkInfo
:
- (void)fetchSSIDInfo {
NSString *ssid = NSLocalizedString(@"not_found", nil);
if (@available(iOS 13.0, *)) {
if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
NSLog(@"User has explicitly denied authorization for this application, or location services are disabled in Settings.");
} else {
CLLocationManager* cllocation = [[CLLocationManager alloc] init];
if(![CLLocationManager locationServicesEnabled] || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined){
[cllocation requestWhenInUseAuthorization];
usleep(500);
return [self fetchSSIDInfo];
}
}
}
NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
id info = nil;
for (NSString *ifnam in ifs) {
info = (__bridge_transfer id)CNCopyCurrentNetworkInfo(
(__bridge CFStringRef)ifnam);
NSDictionary *infoDict = (NSDictionary *)info;
for (NSString *key in infoDict.allKeys) {
if ([key isEqualToString:@"SSID"]) {
ssid = [infoDict objectForKey:key];
}
}
}
...
...
}