NSDate - 設置未來日期

Question

面臨設置未來日期時遇到的一些問題。其實我想要做這個，

NSDate *date = [NSDate date] + MY_EXTRA_TIME; 

Answer 1

那應該是，

NSTimeInterval MY_EXTRA_TIME = 10; // 10 Seconds 
NSDate *futureDate = [[NSDate date] dateByAddingTimeInterval:MY_EXTRA_TIME]; 

Answer 2

斯威夫特

let delay:NSTimeInterval = 5 
let fireDate = NSDate().dateByAddingTimeInterval(delay)