徽章图标

•  
  

      UIApplication *app = [UIApplication sharedApplication];

      

  //    根据用户版本,获取用户权限

      if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8) {

          UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeBadge) categories:nil];

          [app registerUserNotificationSettings:settings];

      }

  //    设置徽章

      app.applicationIconBadgeNumber = 18;

  }