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Hey everybody what's going on this is Caleb with slopes dotcom in this video we're going to create a

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very simple data service that is going to create a static instance of our particular intent for when

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we use Siri and this is going to give us access to this instance throughout our entire application no

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matter what class we're in because it is a singleton class.

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And like I said it's a static instance that will be available throughout the whole lifecycle of the

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application.

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And basically when the intent comes in to the app delegate from Siri we're going to go ahead and set

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that intent in the data service.

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So go ahead and pull open your X code project here and let's get started with that now.

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You know what we also should kind of clean up our project here so right click on leg day and create

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a controller group and make sure that you spell it properly.

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Dragon work out VC.

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Go ahead and create what else.

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We need a services group because we're creating a data service.

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We're going to need an extensions group eventually so we'll just create that now.

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And yeah.

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So let's go ahead and let's actually let's move that that's not right.

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It should be outside of the folder.

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There we go and extensions should go down below here.

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Awesome.

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So there's our view controller our services folders what we care about now.

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So right click Create a new file and it can just be a swift file.

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OK.

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Click next and just call it data service.

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I guess we could also call it intense service but data service is fine and what we want to do is create

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a class called data service like so and now we create a static instance of our class.

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So go ahead and type static let instance equals data service and instantiate it just like that.

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Now the reason we're using static.

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Like I said is because it enables this instance to stay in memory throughout the entire time that this

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app is running.

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So it'll never get.

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It will never become deallocated.

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It's going to stay allocated.

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So next in our data service what we need to do is basically create a property to hold an eye and start

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work out intent but to do that we're going to need to import intense the Syrie get foundation the framework

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I mean.

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So type import intense and now type var intent or maybe work out in 10 that might be that might be more

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specific.

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And that's going to be of type I can start work out intent.

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I'm actually going to rename it.

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Start work out intent.

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So that is now accessible to us anywhere in our app and show you that let's go into the app delegate

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and we just created an intent here using the data from user activity passed from Siri kit.

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And then what we're going to do is we're going to go ahead and call data service which we need to maybe

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build to see that there we go.

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Data Service.

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Instance.

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Intent or start work out intent is going to be equal to intent.

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So now our start work out intent is set to the intent that comes from Siri.

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So we have access to that everywhere in our application now which is really cool.

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The only thing is that we're going to need to send a notification to our view controller to notify it

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that the data has been updated.

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And that's actually what we're going to do in the next video we're going to handle these results that

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are coming back.

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We're going to be able to pull out some of the data and we're also going to write a handy little extension

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for doubles and it's basically going to take a double value and then convert it into a clock times that

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we can display it like you would with a timer.

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OK so it will return a string that is like a clock time with the minutes a colon and the seconds at

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the end.

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So let's head over to the next video and let's set that up.

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We're going to handle our data.

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We're going to send a notification to our view controller to update our labels.

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And we're also going to write a little extension that is going to help us convert our double time into

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a clock time.

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So let's head over there now and let's get started.