iPhone,iPad如何获取WIFI名称即SSID
本文转载至 http://blog.iyunv.com/wbw1985/article/details/205302812010年开始苹果清理了一批APP Store上的WIFI扫描软件, 缘由语焉不详.
这些WIFI扫描软件使用了苹果的私有函数apple80211.framework
尽管不能合法(指能通过App Store的审核)的获取WIFI列表, 不过我们还是可以获取到当前Wifi连接的信息,比如SSID.
SSID全称Service Set IDentifier, 即Wifi网络的公开名称.
苹果在IOS v4.1+版本上提供了公开的方法来获取该信息.
示范代码如下:
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]#import <SystemConfiguration/CaptiveNetwork.h>
[*]
[*]- (id)fetchSSIDInfo
[*]{
[*] NSArray *ifs = (id)CNCopySupportedInterfaces();
[*] NSLog(@"%s: Supported interfaces: %@", __func__, ifs);
[*] id info = nil;
[*] for (NSString *ifnam in ifs) {
[*] info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);
[*] NSLog(@"%s: %@ => %@", __func__, ifnam, info);
[*] if (info && ) {
[*] break;
[*] }
[*] ;
[*] }
[*] ;
[*] return ;
[*]}
对于ARC版本, 代码可简化如下:
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]- (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);
[*] if (info && ) { break; }
[*] }
[*] return info;
[*]}
参考链接:
1. http://stackoverflow.com/questions/5198716/iphone-get-ssid-without-private-library
2. http://answers.yahoo.com/question/index?qid=20100529040141AAKd8dO
SSID全称Service Set IDentifier, 即Wifi网络的公开名称.在IOS 4.1以上版本提供了公开的方法来获取该信息.
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]#import <SystemConfiguration/CaptiveNetwork.h>
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]-(id)fetchSSIDInfo
[*]{
[*] NSArray *ifs = (id)CNCopySupportedInterfaces();
[*] NSLog(@"%s: Supported interfaces: %@", __func__, ifs);
[*] id info = nil;
[*] for (NSString *ifnam in ifs) {
[*] info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);
[*] if (info && ) {
[*] break;
[*] }
[*] ;
[*] }
[*] ;
[*] return ;
[*]}
[*]
[*]- (NSString *)currentWifiSSID {
[*] // Does not work on the simulator.
[*] NSString *ssid = nil;
[*] NSArray *ifs = (id)CNCopySupportedInterfaces();
[*] NSLog(@"ifs:%@",ifs);
[*] for (NSString *ifnam in ifs) {
[*] NSDictionary *info = (id)CNCopyCurrentNetworkInfo((CFStringRef)ifnam);
[*] NSLog(@"dici：%@",);
[*] if (info[@"SSIDD"]) {
[*] ssid = info[@"SSID"];
[*]
[*] }
[*] }
[*] return ssid;
[*]}
[*]
[*]- (void)viewDidLoad
[*]{
[*] ;
[*]
[*] tempLabel=[initWithFrame:CGRectMake(50, 40, 200, 40)];
[*] tempLabel.textAlignment=NSTextAlignmentCenter;
[*] ;
[*] NSDictionary *ifs = ;
[*] NSString *ssid = [ lowercaseString];
[*] tempLabel.text=ssid;
[*]
[*]}
log 信息 ：
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]2013-06-05 21:39:14.357 wifiNameDemo dici：{
[*] BSSID = "f4:ec:38:40:cc:e8";
[*] SSID = "Nice_Apple";
[*] SSIDDATA = <4e696365 5f417070 6c65>;
[*]}
[*]2013-06-05 21:39:14.360 wifiNameDemo Nice_Apple
ARC 版本：
view plaincopy
http://static.blog.iyunv.com/scripts/ZeroClipboard/ZeroClipboard.swf
[*]- (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);
[*] if (info && ) { break; }
[*] }
[*] return info;
[*]}
效果如下：
http://yspe2371e4aa7697989.yunshipei.cn/dHlwZT1mdyZzaXplPTY0MCZzcmM9YUhSMGNDVXpRU1V5UmlVeVJtbHRaeTVpYkc5bkxtTnpaRzR1Ym1WMEpUSkdNakF4TXpBMk1EVXlNVFF4TVRFM05UQT0=
页:
[1]