最近在做測速SDK開發(fā)，對iOS端wifi進行了調(diào)研，分享一下調(diào)研成果
從 iOS 4.1 開始，Apple 就提供了「CNCopyCurrentNetworkInfo」這項函數(shù)，調(diào)用時將會得到 SSID 與 BSSID等信息。 iOS 12 開始開發(fā)者必須在Xcode開啟Access WiFi Information才能返回wifi信息。而在 iOS 13后，條件將變得更為嚴格，又增加了開啟定位權(quán)限。
iOS13獲取Wi-Fi信息步驟（必須真機調(diào)式）

• info.plist中添加

<key>NSLocationWhenInUseUsageDescription</key>
    <string>獲取wifi信息需要開啟定位權(quán)限</string>

• Xcode開啟Access WiFi Information權(quán)限
  
  截屏2021-10-10 下午12.18.52.png
• 引用SystemConfiguration.framework

//導入頭文件
#import <SystemConfiguration/SystemConfiguration.h>
#import <SystemConfiguration/CaptiveNetwork.h>
#import <CoreLocation/CoreLocation.h>

- (NSDictionary *)getWifiInfo{
//    if (@available(iOS 13.0, *)) {
//        檢查定位權(quán)限
//        if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied) {
//            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
//        }
//        CLLocationManager* cllocation = [[CLLocationManager alloc] init];
//        if(![CLLocationManager locationServicesEnabled] || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined){
//            [cllocation requestWhenInUseAuthorization];
//        }
//    }
    NSDictionary *info = nil;
    NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
    if (ifs.count == 0) {
        return nil;
    }
    for (NSString *ifnam in ifs) {
        info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
    }
    return info;
    
}

輸出
{
    BSSID = "";
    SSID = "";
    SSIDDATA = {length = , bytes = };
}