如何將NSUUID轉換爲NSData

Question

我需要從vendorIdentifier得到NSData而不轉換爲NSString，清除字節。 如何轉換NSUUID使用getUUIDBytes:至NSData？

Answer 1

NSUUID *vendorIdentifier = [[UIDevice currentDevice] identifierForVendor]; 
uuid_t uuid; 
[vendorIdentifier getUUIDBytes:uuid]; 

NSData *vendorData = [NSData dataWithBytes:uuid length:16]; 

Answer 2

夫特2版本：

var uuidBytes: [UInt8] = [UInt8](count: 16, repeatedValue: 0) 
UIDevice.currentDevice().identifierForVendor!.getUUIDBytes(&uuidBytes) 
let uuidData = NSData(bytes: &uuidBytes, length: 16) 

Answer 3

夫特3版本：

let vendorId = UIDevice.current.identifierForVendor! 
let uuidBytes = Mirror(reflecting: vendorId.uuid).children.map { $0.1 as! UInt8 } 
let data = Data(bytes: uuidBytes)