How to send data from iphone to watchkit in swift

问题

I am doing a sample project in which i like to send data from iphone to WatchKit. I have no idea of how to do this. Any help will be appreciated. Thanks in advance

回答1:

Add this method in the AppDelegate:

func application(application: UIApplication!,
handleWatchKitExtensionRequest userInfo: [NSObject : AnyObject]!,
   reply: (([NSObject : AnyObject]!) -> Void)!)
{
   //define your dictionary
   reply(yourDict)
}

Add this anywhere in the Apple Watch Extension:

var dict = ["test" : 4] //your dictionary/request to sent to the iPhone
if !WKInterfaceController.openParentApplication(dict, reply: { (reply,error) -> Void in
    println("\(reply)") //your reply data as Dictionary
}) {
    println("ERROR")
}

The first function will trigger with WKInterfaceController.openParentApplication and will reply the dictionary in the reply parameter.

Developer forum: https://devforums.apple.com/message/1082689#1082689

来源：https://stackoverflow.com/questions/28762906/how-to-send-data-from-iphone-to-watchkit-in-swift