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Come back again on this list then they're going to talk about the delegate method of a school of you.

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And there's so many of them and they do a lot of different things for us.

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So it really helps if you get some sort of familiarity with what is available to you.

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So let's going to school.

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I mean you know I'm going to start a new application called school your they get methods and my delegate

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matters like always I'm going to have one scroll of you in my storyboard so you know I'm going to go

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ahead and say Give me a you scroll view that U.S.-Korea I'm going to place it somewhere in here.

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Is has a different background color such as that one and it has the full constrains as of.

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Again none of these are mandatory.

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You don't have to have these particular ones.

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It helps to have some sort of constraints.

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So in here I'm going to add an outlet for it so that outlet is going to be my escrowed of you.

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So in here I'm going to call it my scroll view within the outlets and connect and that's all I have

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to do in here.

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The school back to us woofed fine.

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I mean here the first thing I want to do is I want to sit.

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It's the height of the content size of it.

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A little bit larger.

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So you can actually scroll it.

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So I'm going to say my school the art in the view with the art content size becomes CGI size of the

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values I want to give it are these I want to say there is 600 and the height is 1800 or something like

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that something that is really large and makes the scroll of you scroll essentially.

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So now they have that.

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I'm going to have to use the delegate method and to do that I'm going to say my score of you delegates

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to here and that is a you I ask all of you delegates protocol.

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So I'm going to say delegate yourself I'm going to use the protocol called you by a score of your delegates

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for the golden year.

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I know I have access to a whole host of different methods that they can use for a scrolling.

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For instance I could go in here and say there is a method in the delegate that tells me when something

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is scrotes.

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So this is going to be called.

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It's cruel of you.

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Let me find it.

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Did a scroll.

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So that's the one that I want to use the very first one.

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I mean you know I'm not going to really do anything.

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I'm just going to print it.

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I'm going to say prints.

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They want to print is actually this title because there's going to be a few of them and I don't want

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to waste a lot of time on it.

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So the first one is this when this all the schools are going to print that for me.

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Let's see what that is.

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We have a scroll of you we have to begin dragging.

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We did and try again.

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I'm guessing some somewhere did end decelerating which is actually a very useful one because it tells

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us that it does sort of ration has ended on the of you has a stop essentially and then let me use a

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few of them.

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I'm going to say it is a did and dragging this the one that we use here.

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And the dragon does someone that use their ends dragging the scroll of you.

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I tells us that it actually happened so I'm going to copy that say S-curve you did and dragonets one

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and one that was another one which is essentially telling me when they use that is about to begin dragging.

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So his call will begin dragging.

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And in here of course I'm going to go ahead and print the same thing a scroll view will begin dragging.

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Now pay attention that some of these methods such as score review did a screw or even begin dragging.

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They don't have any arguments.

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They only know which scroll view you're asking for.

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And since I only have one scroll of view I don't really care about that part.

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However this other one for instance has an argument built into it that says decelerates bullion van

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the dragging is ending.

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Is it going to decelerate or not.

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So I'm actually going to go out a little statement and say if it is decelerating it is about to a stop

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let's just print is slowing down slowing down.

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So that's the all of is in practice I'm going to run the application and once I run it I should be able

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to see every time I scroll.

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Every time I begin writing as well as every time I enter.

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So let's have my Castleview up here a little bit longer let's clear everything in it.

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I'm going to go in here and I'm going to tap and write and it says school you really begin dying.

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That was the first thing that happened.

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Let's see it again.

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A tap and I did a little bit.

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It says the school of you will begin writing and then it says it's going to get a scroll because as

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long as on the scoring that is going to be printing and then it's going to say a score of you did.

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And the dragging that happened right at the end.

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So far we haven't seen that deceleration.

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Let's see how we can investigate that.

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We're going to use it like that and hear something in between.

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I saw deceleration happening is slowing down that seat once again.

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Look at the mouse movement that I produce or the top room and I drag and I let go I can let's go on

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Sunday in the middle.

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The moment they let go because I'm just stopping the dragging.

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It says Well from this point on we will decelerate.

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It's slowing down now.

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Now keep in mind that this doesn't mean the score of you has finished because as you can see I see this

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slowing down.

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We still have this scroll of your Discordian school disco discord.

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This isn't the end of the process of the scrolling.

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So for instance if you wanted to know the score you ended scrolling.

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And that's called that decelerating.

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So when it is decelerating it's music this is slowing down and of the ends of the celebrating.

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It means that they're stopped.

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I'm going to type that in here and say it's as now.

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It's right again.

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And that's the end of the dissertation and sometimes it becomes important that you want to know when

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you're user ends using the scroll.

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So I'm going to clear everything out say a scroll and now the very end.

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It's stopped.

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So once again if I like just a little bit and then the moment it stops it says this stopped again this

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way all the way.

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It says it has stopped now.

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So up until this point it was still moving just a tiny bit.

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So that's an introduction on how to use the score view delegate method.

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There's so many many of them.

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I actually recommend that you have a look at the header file in here.

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Here jump to the finish line.

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And in here I'm going to say all the delegate matters are here.

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We'll begin this aerating deed and decelerating S-curve you did.

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And the dragging is all you.

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Get an animation.

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I'm not sure what does that one do.

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It says call Kalt when the content of said the score of your visit with an inmate that finishes.

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So that's when we actually run an animation on it.

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That's something I'm going to show you in another lesson but I didn't know that there is a there's a

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delicate metal to know when God has finished.

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So that's interesting I'll try to embed this into the upcoming lesson as well.

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And then for resuming we'll see it in the next lesson.

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And there's so many other ones in here so it really helps if you have a look at these and get to at

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least familiarize yourself with what is possible.

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Not necessarily.

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You're not going to use them in the next you know application or so but it helps if you know they actually

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exist.

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So with that in mind this movement for zooming in on next lesson.