SwiftUI: DatePicker/Date() formating - swift

Question

I have a .sheet element, that acts as a form when a user is adding to a calendar. Everything works as expected, but as soon as they submit, and upload the Date, Start Time, and end time into firebase where it's held, I noticed a problem. The date and time were formated weird.
My question is, how can I change the var scheduledate to a mm/dd/yy format when stored, and how can I change the var starttime and var endtime to a h:mm format when stored.
Here's my code:
struct SheetView: View {
var userEmail = Auth.auth().currentUser?.email
#Environment(\.dismiss) var dismiss
#State private var scheduledate = Date() //Store this as mm/dd/yy
#State private var startTime = Date() //Store this as h:mm
#State private var endTime = Date() //Store this as h:mm
#State private var scheduleairplane = ""
#State private var scheduleinstructor = ""
var body: some View {
VStack {
HStack {
Text("New Flight")
.font(.title)
.fontWeight(.bold)
Spacer()
Button("Cancel") {
dismiss()
}
}
.padding()
VStack {
DatePicker("Date", selection: $scheduledate, displayedComponents: .date)
.datePickerStyle(GraphicalDatePickerStyle())
.frame(maxHeight: 400)
DatePicker("Start Time", selection: $startTime, displayedComponents: .hourAndMinute)
.datePickerStyle(GraphicalDatePickerStyle())
.padding(.leading)
DatePicker("End Time", selection: $endTime, displayedComponents: .hourAndMinute)
.datePickerStyle(GraphicalDatePickerStyle())
.padding(.leading)
}
VStack {
TextField("Airplane...", text: self.$scheduleairplane)
.padding([.leading, .trailing])
.offset(x: 10)
.frame(height: 30)
.overlay(
RoundedRectangle(cornerRadius: 30)
.stroke(Color.white, lineWidth: 1)
.padding([.leading, .trailing])
)
TextField("Instructor...", text: self.$scheduleinstructor)
.padding([.leading, .trailing])
.offset(x: 10)
.frame(height: 30)
.overlay(
RoundedRectangle(cornerRadius: 30)
.stroke(Color.white, lineWidth: 1)
.padding([.leading, .trailing])
)
}
Spacer(minLength: 0)
Button(action: {
let doc = db.collection("Scheduled").document("\(userEmail ?? "Error")")
// Atomically add a new region to the "regions" array field.
doc.updateData([
"Airplanes": FieldValue.arrayUnion(["\(scheduleairplane)"])
])
doc.updateData([
"Date": FieldValue.arrayUnion(["\(scheduledate)"])
])
doc.updateData([
"Time": FieldValue.arrayUnion(["\(ScheduledTime)"])
])
doc.updateData([
"Instructor": FieldValue.arrayUnion(["\(scheduleinstructor)"])
])
}) {
Text("Submit")
}
.foregroundColor(.white)
.frame(width: 120, height: 45)
.background(Color("Blue"))
.cornerRadius(30)
.padding(.bottom)
}
}
}

Answer 1

Thanks for all the help but I found an answer
here that works very well and is easy.
I used 3 different functions that I ran when I click the button. Then I send them off to firebase with the new values.
func updateDate() {
let selecteddate = scheduleddate //Here it gets the date and saves as another variable
let formatter1 = DateFormatter()
formatter1.dateStyle = .short
//I then made a saved string called newscheduledate to use this new variable anywhere in my project.
newscheduledate = formatter1.string(from: selecteddate) //Here is when it sets the conversion to a string which I used when I sent to firebase.
}
I then used this piece of code below twice, for the start time, and the end time.
func updateTime() {
let selectedtime = startTime //Here it gets the date
let formatter2 = DateFormatter()
formatter2.timeStyle = .medium
//I have a saved string called newstarttime to use this new variable anywhere in my project.
newstarttime = formatter2.string(from: selectedtime)
}

Answer 2

class GeneralExtension{
static func DateToStr(date:Date,format:String = "yyyy/MM/dd HH:mm:ss")->String{
let timeFormatter = DateFormatter()
timeFormatter.locale = Locale.current
timeFormatter.timeZone = TimeZone.current
timeFormatter.dateFormat = format
let nowTimestr = timeFormatter.string(from: date)
return nowTimestr
}
static func StrToDate(dateStr:String,format:String = "yyyy/MM/dd HH:mm:ss")->Date{
var cbDate:Date = Date()
if(!dateStr.isEmpty){
let dateFormatter=DateFormatter()
dateFormatter.dateFormat=format
let tmpDate = dateFormatter.date(from: dateStr)
if let tmpDate = tmpDate{
cbDate = tmpDate
}
}
return cbDate
}
}
example
GeneralExtension.DateToStr(date: dateSetting,format: "MM")
or
extension String{
func StrToDate(format:String = "yyyy/MM/dd HH:mm:ss")->Date{
var cbDate:Date = Date()
if(!self.isEmpty){
let dateFormatter=DateFormatter()
dateFormatter.dateFormat=format
let tmpDate = dateFormatter.date(from: self)
if let tmpDate = tmpDate{
cbDate = tmpDate
}
}
return cbDate
}
}
extension Date{
func DateToStr(format:String = "yyyy/MM/dd HH:mm:ss")->String{
let timeFormatter = DateFormatter()
timeFormatter.locale = Locale.current
timeFormatter.timeZone = TimeZone.current
timeFormatter.dateFormat = format
let nowTimestr = timeFormatter.string(from: self)
return nowTimestr
}
}
example
let date = Date()
let dateStr = date.DateToStr("MM")
let convertDate = dateStr.StrToDate()