截断NSDate(零时间) [英] Truncate NSDate (Zero-out time)

问题描述

我想用时间 0小时， 0分钟和 0秒生成一个新的NSDate.源日期可以是任意随机的NSDate.

I want to generate a new NSDate with 0 hours, 0 minutes, and 0 seconds for time. The source date can be any random NSDate.

有没有办法做到这一点?该文档对此没有帮助.

Is there a way to achieve this? The documentation did not help me with this.

示例

拥有:2010-10-30 10:14:13 GMT

想要:2010-10-30 00:00:00 GMT

推荐答案

unsigned int flags = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay;
NSCalendar* calendar = [NSCalendar currentCalendar];
NSDateComponents* components = [calendar components:flags fromDate:date];
NSDate* dateOnly = [calendar dateFromComponents:components];

date是您要从中删除时间的日期.

date is the date you want to remove the time from.

这会分隔日期和时间，并使用默认时间(00:00:00)创建一个新日期.

This separates the date and time and creates a new date with the default time (00:00:00).

编辑

要考虑时区:

NSDate* dateOnly = [[calendar dateFromComponents:components] dateByAddingTimeInterval:[[NSTimeZone localTimeZone]secondsFromGMT]];

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