How To Use UILocalNotification In Swift

ios swift uilocalnotification
PretzelJesus picture PretzelJesus · Jul 2, 2014 · Viewed 14.8k times · Source

I am trying to figure out how to setup a UILocalNotification in swift but I am not having a lot of luck. I am trying this:

var notification = UILocalNotification()
notification.timeZone = NSTimeZone.defaultTimeZone()
var dateTime = NSDate.date()
notification.fireDate(dateTime)
notification.alertBody("Test")
UIApplication.sharedApplication().scheduleLocalNotification(notification)

For starters, I am not sure if this is the proper way to get the current date time. In .Net, I would just do DateTime.Now().

Second, when I try this, I get an error that says:

'(@lvalue NSDate!) -> $T3' is not identical to 'NSDate'

Unfortunately I have no idea what this means or how to proceed.

Answer

rickster picture rickster · Jul 2, 2014

First, you construct an NSDate using initializer syntax: 

let dateTime = NSDate()

The documentation shows how ObjC convenience constructors map to Swift initializers. If the docs show an init() for a class, you call it using the name of the class: for NSDate, init() means you call NSDate(), init(timeInterval:sinceDate:) means you call NSDate(timeInterval: x, sinceDate: y), etc.

Second: fireDate isn't a method, it's a property. You should assign to it instead of trying to call it:

notification.fireDate = dateTime

Ditto for alertBody.

You can also find the Swift syntax for Cocoa APIs by command-clicking a class name (or other API symbol) in your Swift source file; this causes Xcode to generate a "Swift-ified" version of the relevant header file.

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