如何检查是否启用了wifi选项 [英] How To check if wifi option enabled or not

问题描述

如何检查iPhone上是否启用了wifi选项（但可能iPhone未连接到其中一个wifi网络）。

How to check if wifi option is enabled on the iPhone or not (but maybe iPhone not connected to one of the wifi net).

推荐答案

为此，您需要在项目中导入可达性类。

For this you need to import reachability classes in your project.

之后： -

#import "Reachability.h"

在您查看DidLoad写： -

In you view DidLoad write:-

- (void)viewDidLoad {
    Reachability *internetReach = [[Reachability reachabilityForInternetConnection] retain];
    [internetReach startNotifer];
    Reachability *wifiReach = [[Reachability reachabilityForLocalWiFi] retain];
    [wifiReach startNotifer];

    NetworkStatus netStatus1 = [internetReach currentReachabilityStatus];
    NetworkStatus netStatus2 = [wifiReach currentReachabilityStatus];
    if(netStatus1 == NotReachable && netStatus2 == NotReachable)
    {
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Sorry" message:@"This feature requires an internet connection." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alertView show];
        [alertView release];
    }
    else
    {//wifi connection available;
}
}

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