iOS - APNS - setApplicationIconBadgeNumber = 0

设置APP 在user点击APP icon图标后 badge小红钮不管显示几个 收到多少条notification, 都显示为0-     [UIApplication sharedApplication].applicationIconBadgeNumber = 0;；

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    [self resetUserDefault];
    // Override point for customization after application launch.
   /**
     *  APNS 判断system Version
     */
    if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0f) {
        //位移枚举 按位枚举
        
        //配置设置
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge |  UIUserNotificationTypeSound | UIUserNotificationTypeAlert     categories:nil]];
        //远程
        [[UIApplication sharedApplication] registerForRemoteNotifications];
        
    }else{
        
        
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound |UIRemoteNotificationTypeAlert ];
        
        
    }


    /**
     *  set badgeNum = 0 once APP icon is clicked by users
     */

    [UIApplication sharedApplication].applicationIconBadgeNumber = 0;

/*

    //判断是否由远程消息通知触发应用程序启动
    if (launchOptions) {
        //获取应用程序消息通知标记数（即小红圈中的数字）
        NSInteger badge = [UIApplication sharedApplication].applicationIconBadgeNumber;
        if (badge>0) {
            //如果应用程序消息通知标记数（即小红圈中的数字）大于0，清除标记。
            badge--;
            //清除标记。清除小红圈中数字，小红圈中数字为0，小红圈才会消除。
            [UIApplication sharedApplication].applicationIconBadgeNumber = badge;
            NSDictionary *pushInfo = [launchOptions objectForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"];
            
            //获取推送详情
            NSString *pushString = [NSString stringWithFormat:@"%@",[pushInfo  objectForKey:@"aps"]];
            UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"finish Loaunch" message:pushString delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:nil, nil, nil];
            [alert show];
        }
    }
    /**
     *  注意：app 前台运行时，会调用 remote notification；app后台运行时，点击提醒框，会调用remote notification，点击app 图标，不调用remote notification，没反应；app 没有运行时，点击提醒框，finishLaunching   中，launchOptions 传参，点击app 图标，launchOptions 不传参，不调用remote notification。
     */

*/

 
    return YES;
}