Difference between 2 dates in weeks and days using swift 3 and xcode 8

Question

I am trying to calculate the difference between 2 dates (one is the current date and the other from datepicker) in weeks and days then displaying the result on a label, that

Answer 1

You are close. Just add .weekOfMonth (meaning "quantity of weeks" according to the API documentation) to the allowed units. Example:

let now = Date()
let endDate = now.addingTimeInterval(24 * 3600 * 17)

let formatter = DateComponentsFormatter()
formatter.allowedUnits = [.day, .weekOfMonth]
formatter.unitsStyle = .full
let string = formatter.string(from: now, to: endDate)!

print(string) // 2 weeks, 3 days

Setting maximumUnitCount = 2 is not necessary because there are only two allowed units.