使用Objective-C創建UUID的代碼
- (NSString *)createUUID { // Create universally unique identifier (object) CFUUIDRef uuidObject = CFUUIDCreate(kCFAllocatorDefault);// Get the string representation of CFUUID object. NSString uuidStr = [(NSString )CFUUIDCreateString(kCFAllocatorDefault, uuidObject) autorelease];
// If needed, here is how to get a representation in bytes, returned as a structure // typedef struct { // UInt8 byte0; // UInt8 byte1; // ... // UInt8 byte15; // } CFUUIDBytes; CFUUIDBytes bytes = CFUUIDGetUUIDBytes(uuidObject);
CFRelease(uuidObject);
return uuidStr; }</pre>
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