【代码笔记】iOS-网络嗅探

来源：互联网发布：大连网络买花花店编辑：程序博客网时间：2024/06/05 15:03

一，效果图。

二，工程图。

三，代码。

AppDelegate.h

#import <UIKit/UIKit.h>#import "Reachability.h"@interface AppDelegate : UIResponder <UIApplicationDelegate>{     Reachability *reachability;     BOOL WarningViaWWAN;}@property (strong, nonatomic) UIWindow *window;- (void)ReachabilitySniff:(Reachability*) curReach;- (void)ReachabilitySniffNotification:(NSNotification* )notification;- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;@end

AppDelegate.m

#import "AppDelegate.h"#import "RootViewController.h"@implementation AppDelegate- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];    // Override point for customization after application launch.        RootViewController *rootVC=[[RootViewController alloc]init];    UINavigationController *nav=[[UINavigationController alloc]initWithRootViewController:rootVC];    self.window.rootViewController=nav;            //启动网络嗅探功能    WarningViaWWAN = TRUE;        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(ReachabilitySniffNotification:) name:kReachabilityChangedNotification object:nil];        if (!reachability) {        reachability = [Reachability reachabilityForInternetConnection];    }    [reachability startNotifier];        [self performSelector:@selector(ReachabilitySniff:) withObject:reachability afterDelay:20];                self.window.backgroundColor = [UIColor whiteColor];    [self.window makeKeyAndVisible];    return YES;}#pragma mark -网络嗅探- (void)ReachabilitySniffNotification:(NSNotification* )notification{    Reachability* curReach = [notification object];    [self performSelector:@selector(ReachabilitySniff:) withObject:curReach afterDelay:2];}- (void)ReachabilitySniff:(Reachability*) curReach{    NSLog(@"ReachabilitySniffNewWorkStatus");    if (!curReach) {        return;    }    NetworkStatus status = [curReach currentReachabilityStatus];    switch (status) {        case ReachableViaWiFi:        {            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"您正在使用WiFi网络" message:Nil delegate:self cancelButtonTitle:Nil otherButtonTitles:@"本次不再提醒",@"知道了", nil];            [alert show];            break;        }        case ReachableViaWWAN:        {             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"您正在使用移动网络，运营商会收取流量费，建议使用WiFi网络" message:Nil delegate:self cancelButtonTitle:Nil otherButtonTitles:@"本次不再提醒",@"知道了", nil];                [alert show];             break;        }        case NotReachable:        {            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"没有网络" message:Nil delegate:self cancelButtonTitle:Nil otherButtonTitles:@"本次不再提醒",@"知道了", nil];            [alert show];            break;        }    }}

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