ios (推送之远程推送）升级成ios8系统之后有些程序接收不到远程推送

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维护一个程序，当手机升级到ios8之后就不能接收到远程推送，显示注册失败，查了下资料，原来是没有获取用户许可，加了个方法试了下，ok

if ([[[UIDevice currentDevice]systemVersion ]integerValue] >= 8) {
        
        UIUserNotificationSettings*setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil];
        [application registerUserNotificationSettings:setting];
        [application registerForRemoteNotifications];
        
    }else{
        
        [application registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound];
        
    }

系统版本不同所用的注册方法也是不一样的，下面是苹果sdk给出的说明：

- (void)registerForRemoteNotificationTypes:(UIRemoteNotificationType)types NS_DEPRECATED_IOS(3_0, 8_0, <span style="color:#FF0000;">"Please use registerForRemoteNotifications and registerUserNotificationSettings: instead"</span>);