引入?#import "AFNetworkReachabilityManager.h"

AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];

// 提示：要監(jiān)控網(wǎng)絡(luò)連接狀態(tài)，必須要先調(diào)用單例的startMonitoring方法

[manager startMonitoring];

[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {

if (status == -1) {

NSLog(@"未識別網(wǎng)絡(luò)");

UIAlertController *alertview=[UIAlertController alertControllerWithTitle:@"未識別網(wǎng)絡(luò)"

message:@"請打開設(shè)置→網(wǎng)絡(luò)/Wi-Fi"

preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *cancel=[UIAlertAction actionWithTitle:@"取消"

style:UIAlertActionStyleCancel handler:nil];

UIAlertAction *defult = [UIAlertAction actionWithTitle:@"確定"

style:UIAlertActionStyleDefault

handler:^(UIAlertAction * _Nonnull action) {

}];

[alertview addAction:cancel];

[alertview addAction:defult];

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

}

if (status == 0) {

NSLog(@"未連接網(wǎng)絡(luò)");

UIAlertController *alertview=[UIAlertController alertControllerWithTitle:@"未連接網(wǎng)絡(luò)"

message:@"請打開設(shè)置-蜂窩移動網(wǎng)絡(luò)/Wi-Fi"

preferredStyle:UIAlertControllerStyleAlert];

UIAlertAction *defult = [UIAlertAction actionWithTitle:@"確定"

style:UIAlertActionStyleDefault

handler:^(UIAlertAction * _Nonnull action) {

}];

[alertview addAction:defult];

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

}

if (status == 1) {

NSLog(@"3G/4G網(wǎng)絡(luò)");

}

if (status == 2) {

NSLog(@"Wifi網(wǎng)絡(luò)");

}

}];