将数据传递到Apple Watch应用程序

问题描述

我正在尝试将数据从我的应用程序传递到Apple Watch应用程序中。基本上，我使用的方法与我用于创建今天小部件的方法相同，因此我通过NSUserDefaults传递数据。

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.

问题是，当我运行我的应用程序时，数据不会像我预期的那样更新Watch应用程序中的标签。

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.

这就是我所拥有的......

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)")
    }
}

我尝试将此代码放在 willActivate（）中，但这似乎没有什么区别。

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

任何人都知道我哪里出错了吗？

Anyone know where I am going wrong?

推荐答案

我使用你的方法工作了。我想你可以检查几件事：

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

1）你设置值后是否在同步默认值：

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

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

2）有您是否在应用和扩展程序中启用了应用组？

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

3）在构建NSDefaults时，您是否使用了正确命名的应用程序组？例如，我使用：

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

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

一旦完成设置我运行应用程序，将值设置为默认值，然后运行一瞥从默认值中读取值的目标，看起来有效！

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!

1. 仍然卡住？检查您的苹果帐户中的应用程序组

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