使用日期选择器时间和手动日期输入

Question

我需要为星期日创建一个本地通知（然后每周重复一次），但用户可以从日期选择器中设置时间.. 有人可以检查出什么问题并说出最好的方法吗？

提前致谢。

-(IBAction) setAlarm:(id)sender {

NSDate *pickerDate = [dateTimePickerSet1 date];

NSCalendar *gregCalendar = [[NSCalendar alloc]initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *dateComponent = [gregCalendar components:NSYearCalendarUnit  | NSMonthCalendarUnit| NSWeekCalendarUnit | NSWeekdayCalendarUnit fromDate:[NSDate date]];
NSDateComponents *timeComponents = [gregCalendar components:( NSHourCalendarUnit | NSMinuteCalendarUnit) fromDate:pickerDate];

NSDateComponents *newComponents = [[NSDateComponents alloc]init];


[newComponents setWeekday:1];// Sunday   <<< i need help for that part i think!
[newComponents setMonth:[dateComponent month]];
[newComponents setYear:[dateComponent year]];
[newComponents setHour:[timeComponents hour]];
[newComponents setMinute:[timeComponents minute]];

NSDate *fireDate = [gregCalendar dateFromComponents:newComponents];

Answer 1

我需要在一段时间前执行此操作并找到此答案。 iPhone SDK, how to get NSDate object of coming friday's 20:00?

注意他是如何计算星期几的。它比人们想象的要复杂一些。但它对我有用。