用AFN检测当前网络状态 2018.9.29

最新推荐文章于 2022-03-21 22:01:29 发布

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#AFN检测当前网络状态

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本文介绍如何使用AFNetworking库中的Reachability组件检测iOS设备的网络状态。通过设置ReachabilityStatusChangeBlock，可以实时监听并判断设备是否连接到Wi-Fi、蜂窝移动网络或未知网络，以及是否处于断网状态。

用AFN检测当前网络状态 2018.9.29

先导入AFNetworking第三方文件

再导入 #import “AFNetworkReachabilityManager.h”

这里是用AFNetworking里的Reachability进行网络检测

也可以用Reachability做网络检测

下面是具体实现

#import “ViewController.h”

#import “AFNetworkReachabilityManager.h”

@interface ViewController ()

@end

@implementation ViewController

(void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor colorWithRed:((float)arc4random_uniform(256) / 255.0)green:((float)arc4random_uniform(256) / 255.0)blue:((float)arc4random_uniform(256) / 255.0)alpha:1.0];

[self reachability];

}

(void)reachability {

// 1.获得网络监控的管理者

AFNetworkReachabilityManager *mgr = [AFNetworkReachabilityManager sharedManager];

// 2.设置网络状态改变后的处理

[mgr setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {

  // 当网络状态改变了, 就会调用这个block

  if (status == AFNetworkReachabilityStatusReachableViaWiFi) {

      NSLog(@"已连接Wi-Fi网络");

      UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"已连接Wi-Fi网络" message:nil preferredStyle:UIAlertControllerStyleAlert];



      UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];

      UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDestructive handler:nil];

      [alertController addAction:cancelAction];

      [alertController addAction:okAction];



      [self presentViewController:alertController animated:YES completion:nil];



  }else if (status == AFNetworkReachabilityStatusReachableViaWWAN){

      NSLog(@"已连接蜂窝移动网络");



      UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"已连接蜂窝移动网络" message:nil preferredStyle:UIAlertControllerStyleAlert];



      UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];

      UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDestructive handler:nil];

      [alertController addAction:cancelAction];

      [alertController addAction:okAction];



      [self presentViewController:alertController animated:YES completion:nil];

  }else if (status == AFNetworkReachabilityStatusUnknown){

      NSLog(@"已连接未知网络");



      UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"已连接未知网络" message:nil preferredStyle:UIAlertControllerStyleAlert];



      UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];

      UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDestructive handler:nil];

      [alertController addAction:cancelAction];

      [alertController addAction:okAction];



      [self presentViewController:alertController animated:YES completion:nil];



  }else if (status == AFNetworkReachabilityStatusNotReachable){

      NSLog(@"没有网络(断网)");



      UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"没有网络(断网)" message:nil preferredStyle:UIAlertControllerStyleAlert];



      UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];

      UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"好的" style:UIAlertActionStyleDestructive handler:nil];

      [alertController addAction:cancelAction];

      [alertController addAction:okAction];



      [self presentViewController:alertController animated:YES completion:nil];

  }

}];

// 3.开始监控

[mgr startMonitoring];

}