ios - 以毫秒为单位转换 DateTime iOS

Question

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Answer 1

以下代码用于将日期和时间转换为毫秒。

NSTimeInterval timeInMiliseconds = [[NSDate date] timeIntervalSince1970];

有关更多详细信息，请参阅 apple documentation.

----已编辑----

NSString *dateString = @"21-04-2015 14:23";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd-MM-yyyy HH:mm"];
NSDate *dateFromString = [[NSDate alloc] init];
dateFromString = [dateFormatter dateFromString:dateString];
NSTimeInterval timeInMiliseconds = [dateFromString timeIntervalSince1970]*1000;