IOS 9 中设置applicationIconBadgeNumber和消息推送

最近想做一个推送个数的显示数字问题，就是在ios图标上显示有几条推送消息未读，解决方案如下

因为在IOS8中要想设置applicationIconBadgeNumber，需要用户的授权，在IOS8中，需要加上下面的代码：

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

[[UIApplication sharedApplication] registerUserNotificationSettings:settings];










可是这样会在ios8以前的设备上报错误，所以具体的代码，应改写如下

floatversion = [[[UIDevice currentDevice] systemVersion] floatValue];

 

if(version >= 8.0) {

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

    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];

    [application registerForRemoteNotifications];

}