I am using swift2.
I used this code:
let calendar = NSCalendar.currentCalendar()
let components = calendar.components(.CalendarUnitMonth | .CalendarUnitDay, fromDate: theDate)
I am getting this error: Could not find member 'CalendarUnitMonth'
Check Swift 2 documentation and search for OptionSetType (adopted by NSCalendarUnit). You can use it in this way:
let calendar = NSCalendar.currentCalendar()
let components = calendar.components([.Month, .Day], fromDate:NSDate())
Related
So this worked flawlessly in Swift 2 but in Swift 3 it has problems:
func myNotifications () {
let interval = 2.0
var daysOut = 2.0
let myArray =getArray()
for i in 0..<myArray.count {
let message = ("\(myArray[i])\n-\(myArray[i])")
let localNotification = UILocalNotification()
localNotification.fireDate = Date(timeIntervalSinceNow: (60*60*24*daysOut))
localNotification.alertBody = message
localNotification.timeZone = NSTimeZone.autoupdatingCurrent
localNotification.category = "Message"
UIApplication.shared.scheduleLocalNotification(localNotification)
daysOut += interval
}
let arrayCount = Double(myArray.count)
let lastNotif_Date = Date(timeIntervalSinceNow: (60*60*24*interval*(quoteCount+1)))
userPref_NSDefault.set(lastNotif_Date, forKey: "notification_EndDate")
}
Specifically, this line no longer works which is a big deal because I have users in multiple timezones and I want to make sure this works:
localNotification.timeZone = NSTimeZone.autoupdatingCurrent
I get the error message:
Type "NSTimeZone" has no member "autoUpdatingCurrent"
Any ideas? I tried "timeZone.automatic", ".automatic", and some other variations but haven't been able to figure it out.
autoupdatingCurrent != autoupdatingCurrent
NSTimeZone has been renamed to TimeZone
I am trying to grab data from a text field labeled 'temperatureTextField' and assigning it to 't' which is a Double. Ideally the user is meant to add a number value to the temperatureTextField.
Here is my method:
#IBOutlet weak var temperatureTextField: UITextField!
#IBAction func convert(sender: AnyObject) {
let t = Double(temperatureTextField.text!)
let tempM = TemperatureModel(temp: t!)
temperatureTextField.text = String(tempM.toCelsius())
}
The red exclamation is coming from the line "let t = Double(temperatureTex...)"
You're probably using Xcode 6, so Swift 1.2, but the String initializer for Double is only available in Swift 2 (Xcode 7).
You can always use NSString's doubleValue property:
let t = (temperatureTextField.text! as NSString).doubleValue
but I'd recommend using Xcode 7 and Swift 2 as soon as possible.
As Eric suggested, I ran into this issue because I was running an outdated version of xcode.
Here is what my code looked liked after, in case anyone runs into trouble and is unable to update:
let t = (inputText.text! as NSString).doubleValue
let tempModel = TemperatureModel(temp: t)
inputText.text = "\(tempModel.toCelsius())"
I was doing a playground to check swift 2.0 and this happens:
I do not know if im missing something, or is this normal or what? Thanks.
In swift 1.2 is working as expected XCode 6.3.
EDIT: Code
//: Playground - noun: a place where people can play
import Foundation
var str = "Hello, playground"
let languageType: String = "Swift"
var version = 1.0 //infered
let introduced = 2014 //infered
let isAwesome = true //infered
let π = 3.1415927
let 🐶🐮 = "dogcow"
let someString = "I appear to be a string"
let pathComponent = "~/Documents/Swift".pathComponents
var s = String("bla vla nla")
for character in "catDog" {
print(character)
}
the API for String has changed in Swift 2, to accomplish what it looks like you are trying to do, you would instead use for character in "catDog".characters {...}
an excellent reference is Nate Cook's swiftdoc.org
i'm just in playground trying to get this thing to work, but it doesn't want to work for me..
var total = 1234.1234
var formatter = NSNumberFormatter()
formatter.numberStyle = .CurrencyStyle
println("\(formatter.stringFromNumber(total))")
// Returns: "Optional("$1,234.12")" instead of just "$1,234.12"
I want to show just the formatted number to the user but the extra Optional bit keeps showing up.
Since you're just in playgrounds and are sure that the optional contains a value,
you can use forced unwrappping by adding an exclamation mark:
print("\(formatter.stringFromNumber(total)!)")
I am developing an application with Swift and XCode 6. Yesterday I installed XCode 6 beta 7 and a part of my code (which was already running before this install) now crashing with bad access error.
Here is the part of my code:
var types: UIUserNotificationType = UIUserNotificationType.Sound | UIUserNotificationType.Alert | UIUserNotificationType.Sound
let settings = UIUserNotificationSettings(forTypes: types, categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()
The crashing line is let settings = UIUserNotificationSettings(forTypes: types, categories: nil). The error is: EXC_BAD_ACCESS(code=1, address=0x20)
Does anybody has an idea about this?
Are you targeting 7.1 (or anything < 8.0)? The API you're using is 8.0 only. From the Apple docs:
#availability(iOS, introduced=8.0)
func registerUserNotificationSettings(notificationSettings: UIUserNotificationSettings)
#availability(iOS, introduced=8.0)
class UIUserNotificationSettings : NSObject {
...
}