iOS开发----iOS8 注册推送

[code]2014
-
09
-
19
 
16
:
26
:
20.369
 
demo[
379
:
30506
]
registerForRemoteNotificationTypes: is not
supported in iOS
8.0
 
and
later.
[/code]查询文档可以知道，在iOS8中注册推送的方法
`registerForRemoteNotificationTypes
`已经被废弃，文档中是这样描述的：按照文档中的提示，使用
"registerForRemoteNotifications"
方法代替，这个方法不接受参数。紧接着问题就来了，程序在安装过这个应用的iOS8机器上可以成功注册，而在新安装的iOS8机器上则无法注册，"
application:didRegisterForRemoteNotificationsWithDeviceToken:"
和"
application:didFailToRegisterForRemoteNotificationsWithError:"
都无法响应，并且在成功注册的机器上，收到的推送消息也没有声音提示。再次查看文档后发现这么一段话：
If you want your app’s push notifications to display alerts, play sounds, or perform other user-facing actions, you must call the registerUserNotificationSettings: method to request the types of notifications
you want to use.
换句话说，如果要使用推送服务，还需要再调用
"registerUserNotificationSettings"
方法，而这个方法是和iOS7上的"
registerForRemoteNotificationTypes
"方法一样接受参数的。为什么iOS8下要把一个方法变成两个方法呢？"
registerForRemoteNotifications"
方法的文档中有这么一句话：
Call
this
 
method to initiate the registration process with Apple Push Service. If registration succeeds, the app calls your
app delegate object’s application:didRegisterForRemoteNotificationsWithDeviceToken: method and passes it a device token.
苹果可能考虑到一些应用注册提醒可能只是为了获取deviceToken，所以将获取deviceToken单独提成一个方法，而要接收推送还需要单独调用别的方法，这样就细化了逻辑，方便不用的开发需求。不过在真机调试中，一台刚重置过的搭载iOS8系统的iPhone5c，调用"registerForRemoteNotifications"方法后，并没有收到任何失败或成功的回调，和Apple文档中描述的不符，怀疑是SDK在 这部分也有bug。下面贴一下兼容iOS7和iOS8的注册推送代码：
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >=
8.0
)
if
 
(IS_OS_8_OR_LATER)
{
[[UIApplication sharedApplication] registerForRemoteNotifications];
UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert |UIRemoteNotificationTypeSound) categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:settings];
}
else
 
{
[application registerForRemoteNotificationTypes:
 
UIRemoteNotificationTypeBadge |
 
UIRemoteNotificationTypeAlert |
 
UIRemoteNotificationTypeSound];
}