在objective-c中创build现在的NSNumber的时间戳

我如何获得时间戳为NSNumber ？ 我只需要这样的东西： 1232885280

Answer 1

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