CODEWITHSUNDEEP
swiftdictionarywatchkit
Speckpgh
Speckpgh

Reputation: 3372

handleWatchKitExtentionRequest ... how do I access the reply element to return value to the watchkit extension?

I know I must be doing something wrong with swift... the new API declares a pair of methods...

class func openParentApplication(_ userInfo: [NSObject : AnyObject]!,
                       reply reply: (([NSObject : AnyObject]!,
                                      NSError!) -> Void)!) -> Bool

Which can be used in the watch kit extension... and 

   func application(application: UIApplication!, handleWatchKitExtensionRequest userInfo: [NSObject : AnyObject]!, reply: (([NSObject : AnyObject]!) -> Void)!) {

which can be used in the parent application to handle the request....

I know I am doing something wrong, probably with swift, but the reply object is supposed to be where I can send information back to the extension, but I cannot figure out how to set values into the reply object/dictionary in the handlewatchkitextentionrequest method... I know its just me not understanding the swift syntax, but everything I have tried has failed... how do I put a value/define this dictionary? I have tried creating a dictionary and assigning it to reply, nope, tried to access elements of it no dice... I know this must be simple, but I am just not seeing it.

Upvotes: 2

Views: 2104

Answers (2)

zisoft
zisoft

Reputation: 23078

Watchkit Extension:

// Call the parent application from Apple Watch

// values to pass
let parentValues = [
    "value1" : "Test 1",
    "value2" : "Test 2"
]

WKInterfaceController.openParentApplication(parentValues, reply: { (replyValues, error) -> Void in
    println(replyValues["retVal1"])
    println(replyVaiues["retVal2"])
})

iOS App:

// in AppDelegate.swift
func application(application: UIApplication!, handleWatchKitExtensionRequest userInfo: [NSObject : AnyObject]!, reply: (([NSObject : AnyObject]!) -> Void)!) {
    // retrieved parameters from Apple Watch
    println(userInfo["value1"])
    println(userInfo["value2"])

    // pass back values to Apple Watch
    var retValues = Dictionary<String,String>()

    retValues["retVal1"] = "return Test 1"
    retValues["retVal2"] = "return Test 2"

    reply(retValues)
}

Upvotes: 4

Speckpgh
Speckpgh

Reputation: 3372

Wow, why was this so hard to find an answer too, apparently this is the proper way inside the 

func application(application: UIApplication!, handleWatchKitExtensionRequest userInfo: [NSObject : AnyObject]!, reply: (([NSObject : AnyObject]!) -> Void)!) {

you send it back via:

reply(["x":"y"])

Upvotes: 1

Related Questions