IOS开发—IOS 8 中设置applicationIconBadgeNumber和消息推送

来源：互联网发布：web前端编程自学难吗编辑：程序博客网时间：2024/05/16 15:06

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];

但是这两句如果是在IOS7的系统中运行的话就会报错，所以需要先判断IOS的版本，完整代码如下：

float version = [[[UIDevice currentDevice] systemVersion] floatValue];  if (version >= 8.0) { UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil]; [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; }

如果是注册消息推送的话，需要这样写：

float version = [[[UIDevice currentDevice] systemVersion] floatValue];  if (version >= 8.0) { UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge categories:nil]; [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; [application registerForRemoteNotifications]; }

1 0