Date calculations in SWIFT

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Created Sep ’16

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I am just starting to learn swift and i am finding it really frustrating updating my old app.

How do I get a date from a UI Datepicker and calculate a future date , seemed really easy in Obj C but with NSDate, NSCalendar and date components in swift it seems a nightmare??

Ive been scouring internet and YouTube for info but nothing other than displaying datepicker date in a label.

I want user to select a date on the datepicker then use this date to calculate a future date and possibly create a calendar reminder.

Any help on this would be a life saver!!!

G

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Answer 1

vimipatel OP

Sep ’16

Hi.... ironmonkeyvet

It is very easy to get future date by adding components to selected date.

let today = NSDate() //Use datePicker.date
        let tomorrow = NSCalendar.current.date(byAdding: Calendar.Component.day, //Here you can add year, month, hour, etc.
                                              value: 1,  //Here you can add number of units
                                              to: today as Date)

But please note that it is in Xcode 8.0 and swift 3

In swift 2.x, it may be like :

let today = NSDate() 
let tomorrow = NSCalendar.currentCalendar().dateByAddingUnit(.Day, 
                                                             value:1,
                                                             toDate:today,
                                                             options:[])

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