wifi 获取ssid

最新推荐文章于 2022-11-07 09:35:19 发布

原创最新推荐文章于 2022-11-07 09:35:19 发布 · 790 阅读

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本文介绍了一个Objective-C分类方法，用于从iOS设备中获取当前连接的Wi-Fi网络的SSID和服务集标识符(BSSID)。通过使用CaptiveNetwork框架，该方法能够有效地检索所需信息，并对BSSID进行了标准化格式处理。

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NSString+SSID 分类

#import <Foundation/Foundation.h>
@interface NSString (SSID)
/**
 *  获取ssid
 *
 *  @return 获取ssid
 */
+ (id)fetchSSIDInfo;

@end


#import "NSString+SSID.h"
#import <SystemConfiguration/CaptiveNetwork.h>
@implementation NSString (SSID)
+ (id)fetchSSIDInfo {
    NSArray *ifs = (__bridge_transfer id)CNCopySupportedInterfaces();
//    NSLog(@"Supported interfaces: %@", ifs);
    id info = nil;
    for (NSString *ifnam in ifs) {
        info = (__bridge_transfer id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
//        NSLog(@"%@ => %@", ifnam, info);  //单个数据info[@"SSID"]; info[@"BSSID"];
        if (info && [info count]) { break; }
    }
    if (info[@"BSSID"]) {
        return [NSString standardFormateMAC:info[@"BSSID"]];

    }
    return nil ;
}
//处理一下缺位---
+ (NSString *)standardFormateMAC:(NSString *)MAC {
    NSArray * subStr = [MAC componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@":-"]];
    NSMutableArray * subStr_M = [[NSMutableArray alloc] initWithCapacity:0];
    for (NSString * str in subStr) {
        if (1 == str.length) {
            NSString * tmpStr = [NSString stringWithFormat:@"0%@", str];
            [subStr_M addObject:tmpStr];
        } else {
            [subStr_M addObject:str];
        }
    }

    NSString * formateMAC = [subStr_M componentsJoinedByString:@":"];

    return [formateMAC uppercaseString];
}


@end