1 00:00:06,120 --> 00:00:06,830 It once everyone. 2 00:00:06,820 --> 00:00:12,410 Mark Price you're at death's elopes dot com and we're going to continue forward in our swoosh app. 3 00:00:12,420 --> 00:00:18,360 So far what we've done is we have built out segues so we can swap between screens. 4 00:00:18,360 --> 00:00:23,340 We talked about a common error how to fix it and we've actually just built all the designs and everything 5 00:00:23,340 --> 00:00:28,980 and so in this one lets actually create some logic with the buttons and learn how to pass data between 6 00:00:28,980 --> 00:00:32,640 View controllers which is a very important thing and we also get a lot of questions about that as well 7 00:00:32,640 --> 00:00:33,110 too. 8 00:00:33,240 --> 00:00:40,620 And so you can learn some core foundational stuff stuff off and first things first don't let me go ahead 9 00:00:40,650 --> 00:00:43,730 and just do some good stuff. 10 00:00:43,770 --> 00:00:47,340 So I'm just going to get at get commit Would you should always be doing in your code. 11 00:00:47,340 --> 00:00:50,520 You don't need to follow this format here with all these different branches but you should always be 12 00:00:50,970 --> 00:00:53,310 using get and always adding and always committing. 13 00:00:53,430 --> 00:00:56,130 You will always use it in your job and pretty much everyone. 14 00:00:56,130 --> 00:01:03,330 Ninety nine percent of companies out there are using get nowadays so really important stuff for Lufa. 15 00:01:03,330 --> 00:01:03,660 All right. 16 00:01:03,660 --> 00:01:05,040 So get commit dash. 17 00:01:05,670 --> 00:01:12,330 What we did was we did segues programmatically programmatically. 18 00:01:12,420 --> 00:01:13,180 All right perfect. 19 00:01:13,320 --> 00:01:13,720 So you. 20 00:01:13,800 --> 00:01:15,810 Check out dash B. 21 00:01:15,990 --> 00:01:18,850 Let's actually push this first push origin. 22 00:01:18,910 --> 00:01:25,410 Lesson 0 8 when I push it to the origin that means it's pushing it to you know get help or bit bucket 23 00:01:25,410 --> 00:01:27,320 or wherever the remote origin is. 24 00:01:27,330 --> 00:01:33,370 So the code is there as well to now get check out Dasch be lesson 0 9. 25 00:01:34,110 --> 00:01:38,000 If you're wondering why the keyboard sounds a little bit different it is because I just switch keyboards 26 00:01:38,000 --> 00:01:40,530 to a cool razor gaming mechanical keyboard. 27 00:01:40,680 --> 00:01:44,190 And the reason why is Logitech keyboards absolutely suck. 28 00:01:44,220 --> 00:01:45,420 And they always stop working. 29 00:01:45,540 --> 00:01:49,040 And even though they look cool and they're quiet they stop working. 30 00:01:49,040 --> 00:01:50,840 And so these ones are very reliable. 31 00:01:50,970 --> 00:01:51,500 OK. 32 00:01:51,810 --> 00:01:53,240 All right with get out of the way here. 33 00:01:53,250 --> 00:01:56,100 Let's go ahead and open up our project. 34 00:01:56,100 --> 00:01:56,580 All right. 35 00:01:56,580 --> 00:01:58,060 We want this one right here. 36 00:01:58,470 --> 00:01:58,920 App. 37 00:01:58,920 --> 00:02:00,380 Swoosh. 38 00:02:01,050 --> 00:02:01,290 Great. 39 00:02:01,290 --> 00:02:04,210 So here's our story boards with our segues. 40 00:02:04,290 --> 00:02:08,320 And of course we can go back and forth between the different view controllers. 41 00:02:08,330 --> 00:02:10,520 And so let's talk about what we want to do. 42 00:02:10,710 --> 00:02:13,290 We've got a screen here so that we could get started. 43 00:02:13,290 --> 00:02:14,420 We go here now. 44 00:02:14,770 --> 00:02:16,080 There's some logic that needs to happen. 45 00:02:16,080 --> 00:02:18,810 A user is going to select mens womens or coed. 46 00:02:18,990 --> 00:02:19,590 OK. 47 00:02:19,770 --> 00:02:25,880 And what needs to happen is before someone can actually go in and click the next button. 48 00:02:26,040 --> 00:02:26,660 OK. 49 00:02:26,760 --> 00:02:29,000 They should have to will select one of these options here. 50 00:02:29,220 --> 00:02:36,900 And then once we get past this screen here we when get past the selected data over here to our skill 51 00:02:36,910 --> 00:02:40,080 Visi so we can then further enhance the choice. 52 00:02:40,080 --> 00:02:47,910 Whether you're a beginner or a baller and then finish and then basically if we had other screens you 53 00:02:47,910 --> 00:02:49,140 would do something with that data. 54 00:02:49,140 --> 00:02:52,740 So what we're going to do is we're going to learn how to store the data in the screen and then how to 55 00:02:52,740 --> 00:02:53,830 pass it on over here. 56 00:02:54,120 --> 00:02:56,620 And we also do some logic here with the next ball. 57 00:02:56,640 --> 00:03:02,640 And so that it doesn't let you tap it unless there is the proper Rella data in place so let's go ahead 58 00:03:02,670 --> 00:03:04,130 and get started. 59 00:03:04,140 --> 00:03:08,380 First things first let's click this next button let's just disable it by default. 60 00:03:08,430 --> 00:03:11,700 So it can't it cannot be tapped on. 61 00:03:11,700 --> 00:03:14,400 So see this enabled button all we're going to do is turn it off. 62 00:03:14,400 --> 00:03:20,420 And what we'll do is when one of these options is selected we will then enable this button from code. 63 00:03:20,580 --> 00:03:21,240 OK. 64 00:03:21,660 --> 00:03:27,000 So in order to enable this from code what we need to do is open up the assistant editor and make sure 65 00:03:27,000 --> 00:03:30,360 that we have an I.V. outlet available for this button. 66 00:03:30,360 --> 00:03:35,190 So even though we may have an action for our next tap We're also going to need an outlet so we can actually 67 00:03:36,000 --> 00:03:38,860 grab a reference the buy and make changes to it. 68 00:03:38,850 --> 00:03:44,910 So let's go ahead and control drag from the next button and leave it as an outlet and what we're going 69 00:03:44,910 --> 00:03:49,100 to do is call this next beat like so. 70 00:03:49,620 --> 00:03:50,250 OK. 71 00:03:50,550 --> 00:03:51,810 Very good. 72 00:03:51,810 --> 00:03:55,680 And you're going to notice when we work with ibl you're going to see this week a lot. 73 00:03:55,800 --> 00:03:56,230 OK. 74 00:03:56,280 --> 00:03:57,000 What does weak mean. 75 00:03:57,000 --> 00:04:00,690 Well it kind of means what you think it means you know you the strong and you get the weak. 76 00:04:00,810 --> 00:04:06,870 And in this case when it comes to coding and anytime you make a variable of some kind it's stored in 77 00:04:06,870 --> 00:04:07,480 memory. 78 00:04:07,560 --> 00:04:13,770 Ok has a memory address and then different parts of your program can access the memory they can access 79 00:04:13,770 --> 00:04:16,420 that slot in memory or the item that's there. 80 00:04:16,440 --> 00:04:23,090 Well what happens is when you put an object here in your view controller OK your view controller itself. 81 00:04:23,290 --> 00:04:27,510 OK here this intern here in the interface with this view controller it's actually going to hold a reference 82 00:04:27,510 --> 00:04:28,140 to this button. 83 00:04:28,140 --> 00:04:34,500 So just by virtue of dragging a button on here this view controller the user interface element is going 84 00:04:34,500 --> 00:04:37,640 to hold a reference it's going to point to this button in memory. 85 00:04:37,770 --> 00:04:38,560 OK. 86 00:04:38,700 --> 00:04:41,670 So when we make an outlet we don't want to do that twice. 87 00:04:41,670 --> 00:04:46,800 We don't want our code to point to the same spot in memory and for the Interface Builder file to point 88 00:04:46,800 --> 00:04:50,600 to it a memory because that's two different things holding on to it in memory. 89 00:04:50,790 --> 00:04:56,250 And so let's say and let's say that this controller screen goes off the screen and gets unloaded. 90 00:04:56,340 --> 00:05:00,660 You know if the code was still living we wouldn't want to reference it because it's no longer needed 91 00:05:00,750 --> 00:05:01,980 and vice versa. 92 00:05:02,040 --> 00:05:05,060 And it may be hard to understand you don't have to understand it completely right now. 93 00:05:05,400 --> 00:05:10,140 But the important thing to understand is that when you're working with IBM let's make sure your variables 94 00:05:10,200 --> 00:05:17,310 are weak so the UI and the code are not both referencing what we will do is mean and this view controllers 95 00:05:17,340 --> 00:05:18,850 unloaded out of memory. 96 00:05:19,000 --> 00:05:19,290 OK. 97 00:05:19,290 --> 00:05:21,130 It's a reference to this button will go away. 98 00:05:21,330 --> 00:05:23,940 And if this says weak this one will drop off as well too. 99 00:05:24,060 --> 00:05:26,190 Otherwise it would hold on to it and you could have a memory leak. 100 00:05:26,400 --> 00:05:31,230 You could have this button in memory even though the screen is not present to the user and it can no 101 00:05:31,230 --> 00:05:37,170 longer use that spot of memory and therefore your app can't be as powerful as it needs to be so a lot 102 00:05:37,170 --> 00:05:39,380 of information there make your outlets weak. 103 00:05:39,400 --> 00:05:40,410 It's there by default. 104 00:05:40,410 --> 00:05:41,160 OK. 105 00:05:41,970 --> 00:05:46,110 So when the screen loads it will automatically be disabled because we said that in the Interface Builder. 106 00:05:46,110 --> 00:05:50,580 And so the next thing I want to do is let's go ahead and set these Iby actions here. 107 00:05:50,790 --> 00:05:52,330 So we'll set one for Menz. 108 00:05:52,350 --> 00:06:04,620 So changes from outlet to action and we're say on mennes tapped same thing for women's on women's tab. 109 00:06:05,500 --> 00:06:08,230 And that was I already made mistakes there. 110 00:06:08,240 --> 00:06:17,180 That was in IAB outlet instead of a instead of a b action and let's go ahead and change it to an action. 111 00:06:17,250 --> 00:06:21,550 And this was say on women's. 112 00:06:21,740 --> 00:06:22,950 And one more for the code. 113 00:06:24,690 --> 00:06:35,660 Change it to an action and say on Coach tab perfect what I'm gonna do is right click this league Visi 114 00:06:35,720 --> 00:06:41,040 and the document outline make sure that I get rid of this woman's tact because remember how I accidently 115 00:06:41,040 --> 00:06:43,630 made it an Ivy outlet and then I deleted it from the code. 116 00:06:43,650 --> 00:06:47,270 Remember every time you delete it from the code you have to go over here and delete it as well too. 117 00:06:47,310 --> 00:06:51,220 From the document not line in Interface Builder that would have been a crash or app. 118 00:06:51,240 --> 00:06:53,430 And I just saved you from crashing your app. 119 00:06:53,450 --> 00:06:53,840 OK. 120 00:06:53,970 --> 00:06:57,320 Well it was my app and I'm scratching it but OK. 121 00:06:57,330 --> 00:06:58,340 So this is looking good. 122 00:06:58,410 --> 00:07:03,800 Let's go ahead and close the assistant editor and let's go into league visi. 123 00:07:03,960 --> 00:07:07,990 All right thinking aloud here so the idea is a user comes to the screen. 124 00:07:08,100 --> 00:07:13,750 They select an option when they select an option the next button becomes enabled. 125 00:07:13,920 --> 00:07:14,400 OK. 126 00:07:14,460 --> 00:07:17,700 And then then they can move on to the next screen. 127 00:07:17,730 --> 00:07:18,760 That sounds good to me. 128 00:07:18,870 --> 00:07:20,740 Let's just do some clean up here. 129 00:07:22,130 --> 00:07:22,730 Cool. 130 00:07:23,060 --> 00:07:27,630 So the information how are we going to store it we're going to make it a very we'll pass it on. 131 00:07:27,620 --> 00:07:30,500 Well what I think we need to do is actually create a model. 132 00:07:30,500 --> 00:07:32,800 All right let's go to the model folder here. 133 00:07:33,020 --> 00:07:35,630 We're going to create a new model here called player. 134 00:07:35,720 --> 00:07:40,210 You're a player in the in the app and there's different data that it's going to store. 135 00:07:40,310 --> 00:07:40,740 OK. 136 00:07:40,790 --> 00:07:46,130 So MTS with files fine whenever you're creating model files or just data files with with just swift 137 00:07:46,130 --> 00:07:49,010 only stuff use blanks with file and import foundation. 138 00:07:49,010 --> 00:07:50,730 No need to import it. 139 00:07:51,050 --> 00:07:56,220 And what we're going to do is we're going to call this player. 140 00:07:57,110 --> 00:07:58,830 Okay great. 141 00:07:58,830 --> 00:08:03,180 And what we can do is we're in a create a struct and we're going to call this player. 142 00:08:03,630 --> 00:08:07,600 Should use a struct and when should use a class will always always always use a struct whenever you 143 00:08:07,600 --> 00:08:08,120 can. 144 00:08:08,290 --> 00:08:08,780 OK. 145 00:08:08,830 --> 00:08:13,740 So use a struct when using default swap type strings and things like that. 146 00:08:14,050 --> 00:08:18,100 Use a class when you have to do have to have custom things implemented. 147 00:08:18,140 --> 00:08:24,250 You know your own custom classes so that hold other classes or custom objects like that but a struct 148 00:08:25,090 --> 00:08:26,650 is a value type OK. 149 00:08:26,710 --> 00:08:32,110 And so it can be copied over directly versus a class which is an object stored in memory and you can't 150 00:08:32,110 --> 00:08:33,020 copy it. 151 00:08:33,220 --> 00:08:38,250 And so use a struct whenever you can because they're faster much much faster so we're going to save 152 00:08:38,260 --> 00:08:41,730 our much faster than a class so far. 153 00:08:41,730 --> 00:08:42,710 And what do we want to do. 154 00:08:42,710 --> 00:08:44,590 We want to store the league. 155 00:08:44,590 --> 00:08:52,720 So let's just say Selected of called desired league go because that's what I haven't named the image 156 00:08:52,720 --> 00:08:55,330 so desired league and we'll make it a string. 157 00:08:55,330 --> 00:08:56,870 So right now it's an empty string. 158 00:08:57,100 --> 00:08:58,300 OK. 159 00:08:58,370 --> 00:08:59,490 Or you know what. 160 00:08:59,560 --> 00:09:01,950 Let's just actually make it an optional. 161 00:09:02,080 --> 00:09:08,500 So we're going to say string optional Ambar and we're going to say these are leagues in the middle and 162 00:09:08,560 --> 00:09:17,120 the skill level so selected skill level and we'll call this a string as well to that's looking good 163 00:09:17,120 --> 00:09:17,710 there. 164 00:09:17,950 --> 00:09:18,220 OK. 165 00:09:18,230 --> 00:09:20,180 So desired leagues like that skill level. 166 00:09:20,210 --> 00:09:20,760 Cool. 167 00:09:20,820 --> 00:09:24,270 And what we're going to do is here in our league visi. 168 00:09:24,430 --> 00:09:25,250 OK. 169 00:09:25,580 --> 00:09:30,350 We're going to create a player will declare at the top that's the keyword right there. 170 00:09:30,350 --> 00:09:35,150 Declare is when you declare a variable but not necessarily initialize it. 171 00:09:35,150 --> 00:09:41,200 So what we're going to do is we're going to say bar and then we're going to say player of type player 172 00:09:41,510 --> 00:09:47,310 and let's make this and implicitly unwrapped optional. 173 00:09:47,360 --> 00:09:53,090 And the reason why we want to make it implicit is because we don't want this code to even run unless 174 00:09:53,090 --> 00:09:53,940 there's a player. 175 00:09:54,110 --> 00:09:54,710 OK. 176 00:09:54,850 --> 00:10:00,710 And so we make it an option on what we can do is here in view to load all we have to do is initialize 177 00:10:00,710 --> 00:10:06,940 it we can say player equals player and that's how you initialize a struct with the two parentheses there 178 00:10:06,950 --> 00:10:07,800 like so. 179 00:10:08,000 --> 00:10:12,310 So when you did load occurs and it's going to create a new player. 180 00:10:12,350 --> 00:10:13,130 All right. 181 00:10:13,510 --> 00:10:18,200 And so what we have here is we've got a model that can store data and then eventually we'll pass this 182 00:10:18,200 --> 00:10:19,660 data onto another controller. 183 00:10:19,670 --> 00:10:21,800 But first let's go ahead and handle the logic. 184 00:10:22,100 --> 00:10:26,660 So on men's tapped on woman's tap uncoded tapped What do we need to do. 185 00:10:26,660 --> 00:10:31,640 All right well let's go ahead and write it out so when the men's button is tapped all we need to do 186 00:10:31,640 --> 00:10:35,270 is say player Daut desired league. 187 00:10:36,200 --> 00:10:38,830 They say equals minutes. 188 00:10:38,900 --> 00:10:39,090 All right. 189 00:10:39,080 --> 00:10:41,030 That's just a variable I'm creating. 190 00:10:41,030 --> 00:10:44,490 This is something that's going to let us know hey they selected the HENSLEE. 191 00:10:44,700 --> 00:10:55,040 All right and here you can say player desirably equals women's All right in here player desired league 192 00:10:55,580 --> 00:10:56,970 equals coed. 193 00:10:57,300 --> 00:10:57,770 OK. 194 00:10:58,100 --> 00:10:59,640 So far so good. 195 00:10:59,660 --> 00:11:05,030 So when each of these buttons is tapped Let's go ahead and in this struct here let's set the variable 196 00:11:05,390 --> 00:11:07,700 of the desired league to whatever it needs to be. 197 00:11:07,790 --> 00:11:14,020 And then of course in each one we want to enable that next button right so we say the next button dot 198 00:11:14,870 --> 00:11:19,130 enabled is enabled equals let's say true. 199 00:11:19,690 --> 00:11:20,800 OK. 200 00:11:20,930 --> 00:11:26,000 And you know we could copy this like so and like so. 201 00:11:26,360 --> 00:11:33,730 But what very important principle that I teach you that we are violating what Principal redialing we're 202 00:11:33,740 --> 00:11:37,510 violating the principal look at this next but next what next button on this. 203 00:11:37,560 --> 00:11:41,690 The reason why we don't want to beat herself is because this could introduce logic errors like what 204 00:11:41,690 --> 00:11:46,370 if a programmer accidentally has or going through doing this three times or maybe 10 times they said 205 00:11:46,370 --> 00:11:46,880 false. 206 00:11:46,960 --> 00:11:51,890 There's that autocomplete and that false and now there's a logic error so there's things like that that 207 00:11:51,890 --> 00:11:52,540 can happen. 208 00:11:52,580 --> 00:11:57,380 And so what we want to do is we just want to we want to clean this up a little bit we want to refactor 209 00:11:57,380 --> 00:11:58,320 make it mo better. 210 00:11:58,400 --> 00:12:03,800 So what we're going to do is right here I'm going to create a function here and we're going to call 211 00:12:05,190 --> 00:12:07,180 select leak. 212 00:12:07,390 --> 00:12:07,920 OK. 213 00:12:08,150 --> 00:12:15,440 And for the parameters we want to pass in the league type so to say League type and this is going to 214 00:12:15,440 --> 00:12:16,430 be of type string. 215 00:12:17,430 --> 00:12:17,950 All right. 216 00:12:18,240 --> 00:12:20,420 And let's make our function here. 217 00:12:20,440 --> 00:12:22,290 Oh I forgot to add the word function. 218 00:12:22,290 --> 00:12:23,250 There we go. 219 00:12:23,690 --> 00:12:24,680 OK. 220 00:12:25,170 --> 00:12:30,850 So there's the parameter and what we'll do here is we will say player desirably equals League type. 221 00:12:31,200 --> 00:12:36,630 OK so we're going to pass in the league type into this function and then it'll set it here and then 222 00:12:36,630 --> 00:12:42,030 waltz then we'll say the next button is enabled equals true. 223 00:12:42,270 --> 00:12:52,860 OK and now what we can do is we can say select League Pass in men's K and then in this one something 224 00:12:52,860 --> 00:12:55,970 similar or select league and pass in winnings. 225 00:12:56,550 --> 00:12:57,010 OK. 226 00:12:57,180 --> 00:12:59,800 And in this one will do the same thing. 227 00:12:59,850 --> 00:13:13,150 So select select league and we'll pass in the word coed and let's clean this up. 228 00:13:14,060 --> 00:13:18,400 And so now what we've done is we've we've clean this up a little bit so the next buttons only being 229 00:13:18,430 --> 00:13:21,640 set once and then these functions are passing in their various data. 230 00:13:21,640 --> 00:13:23,160 And this is what I was telling you about earlier. 231 00:13:23,170 --> 00:13:27,760 I try to never ever ever have logic built into Iby actions. 232 00:13:27,760 --> 00:13:28,170 OK. 233 00:13:28,180 --> 00:13:32,930 Logic's happening here and the actions just trigger what button was pressed. 234 00:13:32,940 --> 00:13:34,630 And how do we need to act accordingly. 235 00:13:34,720 --> 00:13:40,100 OK so what's happened so far is a user has tapped something and the next button is now enabled. 236 00:13:40,240 --> 00:13:40,910 OK. 237 00:13:41,200 --> 00:13:45,370 One thing I do want to do though is I want to uncomment this just to make sure the next button doesn't 238 00:13:45,370 --> 00:13:48,570 even work without pressing one of these buttons. 239 00:13:48,580 --> 00:13:55,890 Let's go ahead and run the app and see OK our app has loaded and what we want to do is click get started. 240 00:13:55,910 --> 00:13:57,890 And so this should not work. 241 00:13:57,890 --> 00:13:59,720 Remember we wrote code to load the next screen. 242 00:13:59,780 --> 00:14:04,640 So when I click this nothing should happen and it's not so that's a good sign. 243 00:14:04,640 --> 00:14:07,340 Now what I want to do is uncomment this here. 244 00:14:09,010 --> 00:14:10,850 And let's rerun the app. 245 00:14:10,980 --> 00:14:16,750 And what I want to do I guess I didn't need to comment today at all what I want to do now is when I 246 00:14:16,750 --> 00:14:22,090 select a league then it lets me go to the next one so right now I can't do anything but when I click 247 00:14:22,150 --> 00:14:27,310 Menz for instance then we can go ahead and say next and boom there we have it. 248 00:14:27,310 --> 00:14:29,260 So that's looking really good right there. 249 00:14:29,280 --> 00:14:29,820 Cool. 250 00:14:31,270 --> 00:14:32,450 Making good progress. 251 00:14:32,620 --> 00:14:34,320 So so far so good. 252 00:14:34,480 --> 00:14:39,820 Let's talk about what we've done here is we've created Iby actions for the different buttons and we've 253 00:14:39,820 --> 00:14:43,850 created a function called select league where we pass in the league that was selected and then we just 254 00:14:44,380 --> 00:14:49,630 enable the next button so they can go forward and then everything works as normal We've also created 255 00:14:49,630 --> 00:14:50,550 a struct here. 256 00:14:50,650 --> 00:14:54,130 OK we started building a model for application and you'll do this. 257 00:14:54,140 --> 00:14:55,060 OK. 258 00:14:55,510 --> 00:14:58,790 We might not have had to made a model meaning here in the welcome box. 259 00:14:58,970 --> 00:14:59,680 OK. 260 00:14:59,730 --> 00:15:06,010 Or excuse me in the league b c we could have made variables here we could have said var desired league 261 00:15:06,100 --> 00:15:10,420 of type you know type of string right we could have done that and then one for the skill level and then 262 00:15:10,420 --> 00:15:14,350 we get past those onto the next view controller that starts becoming really nasty when you have multiple 263 00:15:14,350 --> 00:15:15,770 variables. 264 00:15:16,020 --> 00:15:19,230 Everything that you want to do in your apps you want to build around models. 265 00:15:19,250 --> 00:15:20,590 And so here's a protip. 266 00:15:20,860 --> 00:15:21,950 OK. 267 00:15:22,570 --> 00:15:26,740 Protip is if you haven't built a model in your app you're doing it wrong. 268 00:15:26,820 --> 00:15:27,360 OK. 269 00:15:27,520 --> 00:15:33,700 Every piece of data that you need in your app should either be in a class or a struct should be grouped 270 00:15:33,700 --> 00:15:34,080 together. 271 00:15:34,090 --> 00:15:41,320 So that's the protip all of the data in your app should always be always always always always be put 272 00:15:41,320 --> 00:15:42,960 into a struct or a class. 273 00:15:42,970 --> 00:15:43,460 OK. 274 00:15:43,600 --> 00:15:45,570 So that's why we created the player. 275 00:15:45,580 --> 00:15:49,990 It's reusable it's testable it's safer it's cleaner. 276 00:15:50,080 --> 00:15:53,140 No I don't want to close the project Stop OK. 277 00:15:53,150 --> 00:15:54,960 So let's go ahead and call this video done. 278 00:15:54,960 --> 00:15:58,780 We've made some good progress here you've written some code we've started to build out some logic and 279 00:15:58,780 --> 00:16:03,450 then the next idea what we'll do is we will learn how to pass data from one view controller to another 280 00:16:03,450 --> 00:16:05,210 so they can then operate on it etc.. 281 00:16:05,220 --> 00:16:05,880 So that's it for now. 282 00:16:05,880 --> 00:16:08,790 Mark Price at DEF slopes dotcom moving non-ID forward.