swift 4 Date from from ISO string to custom format? - swift

Question

I have ISO date from API I want to convert it to another custom date format, I've checked some threads here it's look like I have to use the extension on Date class, unfortunately, all my attempts failed.
this example for date i have :
2014-10-22T00:00:00+00:00
I want to convert it to July 2014
can I use normal Date class to do it?
and below what I am trying to do
let formatter = ISO8601DateFormatter()
let date = formatter.date(from: "2016-08-26T12:39:00Z")
let string = formatter.string(from: Date())

Answer 1

Try it:
let formatter = ISO8601DateFormatter()
if let date = formatter.date(from: "2014-10-22T00:00:00+00:00") {
let string = date.stringDate
print(string) // October 2014
}
extension Date {
var stringDate: String {
let formatter = DateFormatter()
formatter.dateFormat = "MMMM yyyy"
return formatter.string(from: self)
}
}

Answer 2

my Date load from SQL Server and format like this "2018-01-17T03:08:28.158769" the code below is work for me perfectly
let isoDate = "2018-01-17T03:08:28.158769"
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSSSS"
let date = dateFormatter.date(from:isoDate!)!
dateFormatter.dateFormat = "d.MMMM.YYYY"
let displayDate = dateFormatter.string(from: date)
displayDateInLabel.text = displayDate
result
17.January.2018

Answer 3

You can get Month and Year like this
override func viewDidLoad() {
super.viewDidLoad()
print(getFormattedDate(date: Date()))
}
func getFormattedDate(date: Date) -> String {
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "MMMM YYYY"
let strMonth = dateFormatter.string(from: date)
return strMonth
}