創建時間戳爲NSNumber在objective-c

Question

如何獲得時間戳爲NSNumber？我只需要這樣的：1232885280

Answer 1

NSTimeInterval timeStamp = [[NSDate date] timeIntervalSince1970]; 
// NSTimeInterval is defined as double 
NSNumber *timeStampObj = [NSNumber numberWithDouble: timeStamp];