How to convert Int to Time(MM:SS.mm) swift - ios

Question

I have an Int, say 15344 and I'm sending it to a label as a string, but I want it to be formatted as 01:53.44
var split = data.valueForKeyPath("time") as! Int
cell.textLabel?.text = split.description
but this only gives me the 15344 without format. I tried .stringbyAppendingformat but couldn't get it right. thanks in advance!

Answer 1

That is a strange way to store a time and perhaps you should think
about using the number of milliseconds instead. If that is not an option,
you can "dissect" the integer with
let time = 15344
let minutes = time / 10000
let seconds = (time / 100) % 100
let centis = time % 100
and then create a string with
let text = String(format:"%d:%02d.%02d", minutes, seconds, centis)
print(text) // 1:53.44

Answer 2

The simple solution would be
First convert it to string then,
let time = "15344"
let rangeOfSecond = Range(start: (advance(time.endIndex, -2)),
end: time.endIndex)
let secondString = time.substringWithRange(rangeOfSecond)
For minute
let rangeOfMinute = Range(start: (advance(time.endIndex, -4)),
end: time.endIndex - 2)
let minuteString = time.substringWithRange(rangeOfMinute)
Similarly for hour. Then concat all substrings with ":".

Answer 3

This seems like a weird way to be doing time formatting. There is an NSDate api that uses NSDateFormatter for this purpose. The documentation can be found here:
https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSDateFormatter_Class/
You might want to use:
func stringFromDate(_ date: NSDate) -> String