iOS端获取当前WiFi名称以及连接WiFi后返回处理

项目要想获得WiFi信息先得打开一些权限
1.添加依赖库
target->buildphases->link Binary-> 添加 NetworkExtension.framework

2.在target->signing&capabilities里面添加Hotspot Configuration权限和Access WiFi Information权限

3.上代码
查找好多资料，常规方法
1.先获取当前WiFi名称

//获取当前WiFi名称
-(NSString *)getSSID{
    NSString *ssid = @"Not Found";
    CFArrayRef myArray = CNCopySupportedInterfaces();
    if (myArray != nil) {
        CFDictionaryRef myDict = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
        if (myDict != nil) {
            NSDictionary * dict = (NSDictionary*)CFBridgingRelease(myDict);
            ssid = [dict valueForKey:@"SSID"];
        }
    }
    return ssid;
}

2.连接WiFi

//连接WiFi
- (void)sysConnectWifiWithWifiSSID:(NSString *)wifiSSID wifiKey:(NSString *)wifiKey{
    NSString *ssid = wifiSSID;
    NSString *passphrase = wifiKey;
    NSString *connectSsid = @"Not Found";
    BOOL isWEP = NO;
    CFArrayRef myArray = CNCopySupportedInterfaces();
    if (myArray != nil) {
        CFDictionaryRef myDict = CNCopyCurrentNetworkInfo(CFArrayGetValueAtIndex(myArray, 0));
        if (myDict != nil) {
            NSDictionary *dict = (NSDictionary*)CFBridgingRelease(myDict);
            connectSsid = [dict valueForKey:@"SSID"];
        }
    }
    if ([connectSsid isEqualToString:ssid]){
        /// MARK: 连接Wi-Fi
        self.connectType = ConnectTypeAlready;
        NSLog(@"你已连接到该WiFi,不用重复连接:%ld",self.connectType);
        return;
    }
    __weak typeof(self) weakSelf = self;
    if (@available(iOS 11.0, *)) {
        NEHotspotConfiguration *configuration = [[NEHotspotConfiguration alloc]initWithSSID:ssid passphrase:passphrase isWEP:isWEP];
        [[NEHotspotConfigurationManager sharedManager]applyConfiguration:configuration completionHandler:^(NSError * _Nullable error) {
            if (!error) {
                //根据名称判断是否连接成功
                if ([[self getSSID]isEqualToString:ssid]) {
                    weakSelf.connectType = ConnectTypeSuccess;
                    NSLog(@"连接成功:%ld",self.connectType);                
                }else{
                    //如果本来就链接了这个wifi,也会走到这里来
                     if(error.code ==0){
                            weakSelf.connectType = ConnectTypeFailure;
                            NSLog(@"连接失败:%ld",self.connectType);
                    } 
                }
            }
        }];
    }
}