IOS开发中如何检测网络连接_ios 判断局域网-优快云博客

本文介绍如何在iOS应用中使用Reachability框架来检测互联网连接状态，通过自定义方法实现连接状态的实时更新。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1)将**SystemConfiguration**framework添加到项目中。
2)添加Reachability.h和**Reachability.m**githubhttps://github.com/tonymillion/Reachability
3)实现方法

#import "Reachability.h"

// Add this to the interface in the .m file of your view controller
@interface MyViewController ()
{
    Reachability *internetReachableFoo;
}
@end

实现方法

// Checks if we have an internet connection or not
- (void)testInternetConnection
{   
    internetReachableFoo = [Reachability reachabilityWithHostname:@"www.google.com"];

    // Internet is reachable
    internetReachableFoo.reachableBlock = ^(Reachability*reach)
    {
        // Update the UI on the main thread
        dispatch_async(dispatch_get_main_queue(), ^{
            NSLog(@"Yayyy, we have the interwebs!");
        });
    };

    // Internet is not reachable
    internetReachableFoo.unreachableBlock = ^(Reachability*reach)
    {
        // Update the UI on the main thread
        dispatch_async(dispatch_get_main_queue(), ^{
            NSLog(@"Someone broke the internet :(");
        });
    };

    [internetReachableFoo startNotifier];
}

StackOverFlow