如何使用iPhone SDK创建GUID / UUID [英] How to create a GUID/UUID using the iPhone SDK
问题描述
我希望能够在iPhone和iPad上创建GUID / UUID。
I want to be able to create a GUID/UUID on the iPhone and iPad.
目的是能够为所有独特的分布式数据创建密钥。有没有办法用iOS SDK做到这一点?
The intention is to be able to create keys for distributed data that are all unique. Is there a way to do this with the iOS SDK?
推荐答案
[[UIDevice currentDevice] uniqueIdentifier]
返回iPhone的唯一ID。
Returns the Unique ID of your iPhone.
编辑:
- [UIDevice uniqueIdentifier]
现已弃用,应用程序将被App Store拒绝使用。下面的方法现在是首选方法。
-[UIDevice uniqueIdentifier]
is now deprecated and apps are being rejected from the App Store for using it. The method below is now the preferred approach.
如果您需要创建多个UUID,只需使用此方法(使用ARC):
If you need to create several UUID, just use this method (with ARC):
+ (NSString *)GetUUID
{
CFUUIDRef theUUID = CFUUIDCreate(NULL);
CFStringRef string = CFUUIDCreateString(NULL, theUUID);
CFRelease(theUUID);
return (__bridge NSString *)string;
}
编辑:2014年1月29日:
如果您的目标是iOS 6或更高版本,您现在可以使用更简单的方法:
Jan, 29 2014: If you're targeting iOS 6 or later, you can now use the much simpler method:
NSString *UUID = [[NSUUID UUID] UUIDString];
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