我有一个格式为 2018-01-19 18:30:00 +0000 的 NSDate 对象。现在我只想更改时间组件。更改时间组件后,NSDate 对象将变为 2018-01-19 10:00:00。我确实尝试了各种解决方案,但没有任何效果。如果有人对此问题有任何解决方案,请提供帮助。提前谢谢你
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [calendar components: NSCalendarUnitYear| NSCalendarUnitMonth| NSCalendarUnitDay fromDate:date];
[components setHour:hour];
[components setMinute:minute];
[components setSecond:second];
NSDate *newDate = [calendar dateFromComponents:components];
我尝试的另一种解决方案是
NSDate *oldDate = date;
unsigned unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay;
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *comps = [calendar components:unitFlags fromDate:oldDate];
comps.hour = 10;
comps.minute = 00;
comps.second = 00;
NSDate *newDate = [calendar dateFromComponents:comps];
每次我得到的输出都是输入日期的下一个日期
最佳答案
您可以在创建新的 NSDate 对象时更改时间组件:
NSDate *date = [calendar dateBySettingHour:10 minute:0 second:0 ofDate:[NSDate date] options:0];
答案来自:https://stackoverflow.com/a/5611700/4535184
关于ios - NSDate 问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42551321/