ios - Passing data to Apple Watch app

Question

I am trying to pass data from my app into my Apple Watch app. Basically, I am using the same method as I used for creating the today widget and so I am passing data through NSUserDefaults.

The problem is, that when I run my app, the data does not update the labels in the Watch app as I would expect it to.

Here is what I have...

override init(context: AnyObject?) {
    // Initialize variables here.
    super.init(context: context)

    // Configure interface objects here.
    NSLog("%@ init", self)

    var defaults = NSUserDefaults(suiteName: "group.AffordIt")
    var totalBudgetCalculation = ""
    if (defaults!.stringForKey("totalBudgetWidget") != nil) {
            println("Worked")
        totalBudgetCalculation = defaults!.stringForKey("totalBudgetWidget")!
        initialBudgetLabel.setText("Initial: (totalBudgetCalculation)")
    }

    var currentBudgetCalculation = ""
    if (defaults!.stringForKey("currentBudgetWidget") != nil) {
        currentBudgetCalculation = defaults!.stringForKey("currentBudgetWidget")!
        currentBudgetLabel.setText("Current: (currentBudgetCalculation)")
    }
}

I tried putting this code in willActivate(), however that doesn't seem to make a difference.

Anyone know where I am going wrong?

Answer 1

This applies to OS 1 only. See below for better answers.

I got it working using your method. I guess there's a couple of things you can check:

1) Are you synchronising the defaults after you set the value:

defaults?.synchronize();
NSLog("%@ ", defaults?.dictionaryRepresentation())

2) Have you enabled the App Group in both your app and your extension?

3) Are you using the correctly named app group when constructing the NSDefaults? For example, I use:

NSUserDefaults(suiteName: "group.com.brindysoft.MyWatch");

Once all that's set up I run the app, set the value in the defaults, then run the glance target which reads the value from the default and that seems to work!

4. Still stuck? check your app groups in your apple account