iOS WIFI万能钥匙实现方法

最近公司接了个外包项目，要求用到Wi-Fi相关的权限，好了，二话不说，我们来贴代码。

1.判断用户的Wi-Fi开关是否打开

/**

判断Wi-Fi开关是否打开

@return 开关状态

*/

+ (BOOL) isWiFiSwichOn {

NSCountedSet * cset = [NSCountedSet new];

struct ifaddrs *interfaces;

if( ! getifaddrs(&interfaces) ) {

for( struct ifaddrs *interface = interfaces; interface; interface = interface->ifa_next) {

if ( (interface->ifa_flags & IFF_UP) == IFF_UP ) {

[cset addObject:[NSString stringWithUTF8String:interface->ifa_name]];

}

}

}

return [cset countForObject:@"awdl0"] > 1 ? YES : NO;

}

2.跳转到系统Wi-Fi页面

NSURL* urlCheck1 = [NSURL URLWithString: @"App-Prefs:root=WIFI"];

NSURL* urlCheck2 = [NSURL URLWithString: @"prefs:root=WIFI"];

NSURL* urlCheck3 = [NSURL URLWithString: UIApplicationOpenSettingsURLString];

if ([[UIApplication sharedApplication] canOpenURL: urlCheck1]) {

[[UIApplication sharedApplication] openURL: urlCheck1];

} else if ([[UIApplication sharedApplication] canOpenURL: urlCheck2]) {

[[UIApplication sharedApplication] openURL: urlCheck2];

} else if ([[UIApplication sharedApplication] canOpenURL: urlCheck3]) {

[[UIApplication sharedApplication] openURL: urlCheck3];

} else {

return;

}