0, 配置push证书 省略

1, 设置Xcode

打开开关

2, 导入头文件 注册通知

#import <UserNotifications/UserNotifications.h>

@interface AppDelegate () <UNUserNotificationCenterDelegate>

@end

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    [self listenNetWorkingStatus]; //监听网络是否可用

    
    if ([UIDevice currentDevice].systemVersion.floatValue >= 10.0) {
        
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        
        center.delegate = self;
        
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
            
            if (!error) {
                
                NSLog(@"request authorization succeeded!");
                
            }
            
        }];
        
    } else {
        
        if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
            
            //IOS8，创建UIUserNotificationSettings，并设置消息的显示类类型
            
            UIUserNotificationSettings *notiSettings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeBadge | UIUserNotificationTypeAlert | UIUserNotificationTypeSound) categories:nil];
            
            [application registerUserNotificationSettings:notiSettings];
            
        }
        
    }
    
     [[UIApplication sharedApplication] registerForRemoteNotifications];

    [self initUIAppearance];

    
    // 1.创建窗口
    self.window = [[UIWindow alloc] init];
    self.window.frame = [UIScreen mainScreen].bounds;
    
    // 2.设置根控制器
    self.window.rootViewController = [[DATabBarController alloc] init];

    // 3.显示窗口
    [self.window makeKeyAndVisible];

    return YES;
}

3, 实现代理方法

- (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken{
    
    NSLog(@"deviceToken=====%@",deviceToken);
    
    NSString*device = [[[[deviceToken description]stringByReplacingOccurrencesOfString:@"<"withString:@""]stringByReplacingOccurrencesOfString:@" "withString:@""]stringByReplacingOccurrencesOfString:@">"withString:@""];
    
    NSUserDefaults*defaults = [NSUserDefaults standardUserDefaults];
    
    [defaults setObject:device forKey:@"DEVICE_TOKEN"];
    
    [defaults synchronize];
    
}

- (void)application:(UIApplication*)application didReceiveRemoteNotification:(NSDictionary*)userInfo

{
    
    NSLog(@"%@",userInfo);
    
    application.applicationIconBadgeNumber = 0;
    
    [[NSNotificationCenter defaultCenter] postNotificationName:@"ReceivePush" object:nil userInfo:userInfo];
    
}

- (void)application:(UIApplication*)application didFailToRegisterForRemoteNotificationsWithError:(NSError*)error{
    
    NSLog(@"Regist fail%@",error);
    
}

4, 测试通知

用这个软件测试推送
https://github.com/noodlewerk/NWPusher

手机运行到后台 就能看到通知的

5, 收到消息后, 图标显示数字

当你挂起程序时，你收到了一个远程通知，如果你的服务器发送通知时，通知的内容设置了badge = 10吧，那么你不用打开应用，然后解析badge，得到10，再把3设置为icon的badgenumber = 10

收到通知的那一刻，你的icon badge number就已经显示为10了