ios 静态库为什么不能push

使用IOS8 xcode6的同学，在使用推送（push）的时候应该已经出现这个问题了。那么让我们来看看具体的解决方法。

iOS 8 has changed notification registration in a non-backwards compatible way. While you need to support iOS 7 and 8 (and while apps built with the 8 SDK aren't accepted), you can check for the selectors you need and conditionally call them correctly for the running version.

Here's a category on UIApplication that will hide this logic behind a clean interface for you that will work in both Xcode 5 and Xcode 6.

// IOS8 新系统需要使用新的代码咯
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings
settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge)
categories:nil]];

[[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
//这里还是原来的代码
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:
(UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}

原本在IOS7当中 判断PUSH是否打开的方法是：
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
return (types & UIRemoteNotificationTypeAlert);

如果将这段代码使用在 IOS当中，虽然不会出现crash的现象，但是基本没什么作用。
在IOS8中，我们使用如下的新代码来取代以上的代码

{
UIRemoteNotificationType types;
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
types = [[UIApplication sharedApplication] currentUserNotificationSettings].types;
}
else
{
types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
}

return (types & UIRemoteNotificationTypeAlert);
}