1 00:00:07,120 --> 00:00:11,860 Hey everybody what's going on this is Caleb with Debb slopes dot com and in this video we're going to 2 00:00:11,860 --> 00:00:13,710 go ahead and fix those problems. 3 00:00:13,710 --> 00:00:20,560 We were just having in the previous video where basically we were not able to show the changes made 4 00:00:20,560 --> 00:00:23,380 in a subscription when we wanted to be showing them. 5 00:00:23,380 --> 00:00:24,460 So that's a problem. 6 00:00:24,460 --> 00:00:28,900 Let's go ahead and pull open our Esco project and let's troubleshoot this let's figure out what the 7 00:00:28,900 --> 00:00:31,640 reason for our problems are. 8 00:00:31,840 --> 00:00:40,990 So it appears that requested finish is not being called when the actual purchase is being made and I'm 9 00:00:40,990 --> 00:00:42,940 trying to figure out why that is. 10 00:00:42,940 --> 00:00:48,490 But I think what it boils down to is that we are calling finished transaction before we're actually 11 00:00:48,490 --> 00:00:49,340 completing. 12 00:00:49,510 --> 00:00:54,160 And that's I think the problem we are telling it to be done before we're done using the data. 13 00:00:54,160 --> 00:00:57,830 So let's go ahead and let's actually put that beneath complete. 14 00:00:57,970 --> 00:01:03,240 And we're also going to go ahead and put failed beneath the notification just to be consistent. 15 00:01:03,310 --> 00:01:07,560 So what we can also do is think about what happens if payment is deferred. 16 00:01:07,570 --> 00:01:09,300 Let's say someone can't pay. 17 00:01:09,340 --> 00:01:13,230 We're going to go ahead and call a finished transaction there as well. 18 00:01:13,360 --> 00:01:17,400 And you know while we're purchasing why don't we go ahead and handle that as well. 19 00:01:17,420 --> 00:01:18,340 We're called. 20 00:01:18,360 --> 00:01:18,930 Print. 21 00:01:18,970 --> 00:01:24,720 And we'll just say purchasing can't type purchasing data. 22 00:01:25,120 --> 00:01:31,090 And that will basically just print out when the user taps the buy button until they either purchase 23 00:01:31,150 --> 00:01:33,160 restore fail or defer. 24 00:01:33,160 --> 00:01:34,780 So that's being called. 25 00:01:34,780 --> 00:01:41,290 But you know what I don't really like how I'm not sending a notification when I actually buy it because 26 00:01:41,290 --> 00:01:48,100 that that implies that our function here is going to get called every single time and we want to make 27 00:01:48,100 --> 00:01:49,230 sure that it gets called. 28 00:01:49,230 --> 00:01:58,000 So let's go ahead and let's actually modify complete to be the way it was before let's call case IAP 29 00:01:58,000 --> 00:01:59,500 mealtime monthly sub. 30 00:01:59,920 --> 00:02:04,870 And then what we're going to do is we're going to actually call the same code from this function right 31 00:02:04,870 --> 00:02:10,190 here for a successful subscription because at that point we have succeeded as well. 32 00:02:10,190 --> 00:02:11,420 Now let's go. 33 00:02:11,530 --> 00:02:13,150 And let's type that. 34 00:02:13,150 --> 00:02:16,590 Here we're going to paste it and then we're actually going to break. 35 00:02:16,840 --> 00:02:17,630 Okay. 36 00:02:18,100 --> 00:02:19,690 So there we go. 37 00:02:19,690 --> 00:02:21,730 Beautiful. 38 00:02:21,730 --> 00:02:23,890 We have an executable statement we're calling true. 39 00:02:23,920 --> 00:02:25,390 We're setting that boolean. 40 00:02:25,390 --> 00:02:27,820 We are also setting the non consumable purchase to be true. 41 00:02:27,820 --> 00:02:29,330 So go ahead and build and run. 42 00:02:29,320 --> 00:02:32,520 Let's go see if this helps to fix our problem. 43 00:02:32,620 --> 00:02:35,680 Our subscription should be expired from the last video. 44 00:02:36,010 --> 00:02:38,420 And let's go ahead and check this out. 45 00:02:38,440 --> 00:02:44,080 It says subscription active and when we loaded up the app look at that it actually bought a new subscription 46 00:02:44,080 --> 00:02:44,830 for us. 47 00:02:44,950 --> 00:02:46,810 So that is not a good thing. 48 00:02:46,810 --> 00:02:50,280 That is not doing what it's supposed to be doing very uncool. 49 00:02:50,350 --> 00:02:52,840 So we need to fix this. 50 00:02:52,840 --> 00:02:59,990 Let's go ahead and let's go into storefront Visi let's think about what we could be missing here. 51 00:03:00,070 --> 00:03:02,150 What are we missing. 52 00:03:03,820 --> 00:03:07,720 Oh we are missing a very important thing. 53 00:03:07,750 --> 00:03:12,550 We are adding observers for these notifications but we are never removing them. 54 00:03:12,550 --> 00:03:13,750 That is a huge problem. 55 00:03:13,750 --> 00:03:16,130 I am surprised we have not noticed that until right now. 56 00:03:16,420 --> 00:03:18,050 Okay so you don't we're actually going to do. 57 00:03:18,060 --> 00:03:23,200 We're going to call and net and whenever this view controller is DNA sized we're going to just remove 58 00:03:23,230 --> 00:03:24,970 all the observers on this view controller. 59 00:03:24,970 --> 00:03:31,520 So go ahead and call notification center dot default dot remove observer and call self. 60 00:03:31,550 --> 00:03:32,830 OK. 61 00:03:32,920 --> 00:03:37,440 So now whenever this view controller is d initialized it's going to remove that observer. 62 00:03:37,540 --> 00:03:42,520 And that way we won't accidentally get you know observers that are just kind of locked in memory for 63 00:03:42,520 --> 00:03:47,010 when the app opens again so called DNS and remove the observers here guys. 64 00:03:47,040 --> 00:03:49,400 This is really important I'm surprised we didn't do this. 65 00:03:49,420 --> 00:03:56,890 We also need to call this on detail Visi like so let's go ahead and put it right beneath you will disappear 66 00:03:57,460 --> 00:03:58,430 like so. 67 00:03:58,600 --> 00:04:03,610 And oh you know what it looks like we are removing it from from view will disappear. 68 00:04:03,610 --> 00:04:07,570 Let's actually we don't need to call view will disappear it will just do initialize it because whenever 69 00:04:07,570 --> 00:04:10,430 the view controller goes away it's initialized by Swift. 70 00:04:10,630 --> 00:04:12,530 So we can put that there. 71 00:04:12,850 --> 00:04:14,280 Let's go ahead and build and run. 72 00:04:14,470 --> 00:04:16,860 OK let's go ahead and check out what we did here. 73 00:04:17,080 --> 00:04:20,190 And let's see if this helps. 74 00:04:22,520 --> 00:04:22,810 OK. 75 00:04:22,820 --> 00:04:23,820 Subscription is active. 76 00:04:23,840 --> 00:04:26,440 That's true because we still have about two minutes left. 77 00:04:26,600 --> 00:04:28,160 Being 841. 78 00:04:28,400 --> 00:04:34,270 So we're going to just go ahead and hang tight while the subscription is still active. 79 00:04:34,340 --> 00:04:39,140 It does appear that it is sending through OK I can go into my different view controllers. 80 00:04:39,140 --> 00:04:40,230 The ads are gone. 81 00:04:40,320 --> 00:04:42,570 Ok that's cool. 82 00:04:42,740 --> 00:04:49,550 So yeah I think that this will help removing the observers from storefront Visi because that is actually 83 00:04:49,880 --> 00:04:54,620 that might be the source of our issue here is that the notifications are never being removed and they 84 00:04:54,620 --> 00:05:00,080 might be getting stuck in memory which could be a part of our problem here so let's just verify that 85 00:05:00,080 --> 00:05:03,290 everything is good if the status comes in as true. 86 00:05:03,290 --> 00:05:04,670 We're updating the label. 87 00:05:04,670 --> 00:05:08,940 We're going to update the the label to read if it's not true. 88 00:05:09,230 --> 00:05:09,970 You don't want. 89 00:05:10,030 --> 00:05:11,630 Why don't we do some more fun stuff. 90 00:05:11,630 --> 00:05:15,210 Why don't we say something like self-direct. 91 00:05:15,590 --> 00:05:19,420 Well and that self may be viewed background color. 92 00:05:19,730 --> 00:05:24,150 Let's change the background color when we are subscribed let's do like a dark mode kind of thing. 93 00:05:24,200 --> 00:05:27,510 So let's go ahead and set it to be like a dark gray. 94 00:05:27,540 --> 00:05:28,890 That looks pretty cool. 95 00:05:28,910 --> 00:05:31,230 And why don't we set the collection view. 96 00:05:31,400 --> 00:05:37,890 Background color to also be that dark gray using a color literal cool. 97 00:05:38,440 --> 00:05:39,380 Subscription is active. 98 00:05:39,390 --> 00:05:40,720 Ok that's cool. 99 00:05:40,720 --> 00:05:43,280 We're going to we've got to use self since we're in a closure. 100 00:05:43,310 --> 00:05:48,110 Do it again self and copy this paste it below. 101 00:05:48,140 --> 00:05:53,450 And we're going to set this back to white K when we're expired we're going to have normal light mode 102 00:05:53,480 --> 00:05:56,220 and then when we are subscribed we'll have a dark mode. 103 00:05:56,300 --> 00:06:00,610 Let's build and run just to see that while we're waiting for a subscription to expire and you know what 104 00:06:00,620 --> 00:06:02,630 it actually may already be expired. 105 00:06:02,720 --> 00:06:03,900 So that's fine. 106 00:06:04,930 --> 00:06:05,400 Okay. 107 00:06:05,510 --> 00:06:06,270 It's expired. 108 00:06:06,320 --> 00:06:07,340 The background is white. 109 00:06:07,340 --> 00:06:08,070 Very cool. 110 00:06:08,090 --> 00:06:11,900 Let's tap on purchase and let's enter our password. 111 00:06:11,930 --> 00:06:16,550 Test test one two three is thing on press OK. 112 00:06:17,030 --> 00:06:18,230 And let's see. 113 00:06:18,230 --> 00:06:18,860 Here we go. 114 00:06:18,890 --> 00:06:28,730 Confirm purchase confirms subscription and we're waiting to see if it actually gets confirmed. 115 00:06:31,450 --> 00:06:32,120 Boom. 116 00:06:32,260 --> 00:06:34,480 Oh my gosh do you see that subscription is active. 117 00:06:34,480 --> 00:06:36,620 That is the coolest thing. 118 00:06:36,670 --> 00:06:37,810 It worked. 119 00:06:37,810 --> 00:06:38,700 Look at that. 120 00:06:39,040 --> 00:06:42,970 And now that our subscription is active we can actually go in and we can view this. 121 00:06:42,970 --> 00:06:44,560 Everything is good to go. 122 00:06:44,560 --> 00:06:48,300 We are not having issues with our subscription anymore. 123 00:06:48,400 --> 00:06:49,600 If we build and run. 124 00:06:49,600 --> 00:06:51,670 Let's go back and let's take a look. 125 00:06:51,670 --> 00:06:57,190 We should still have our dark mode as soon as it loads updating subscription active. 126 00:06:57,200 --> 00:06:59,650 Wow that is so cool. 127 00:06:59,650 --> 00:07:01,890 I do not like the food Zyla is still gray. 128 00:07:01,900 --> 00:07:03,300 So we're going to fix that really quickly. 129 00:07:03,310 --> 00:07:07,810 But guys we have a subscription when it expires. 130 00:07:07,810 --> 00:07:13,630 We can actually see how long we have we can know when it expires when we reload the app that subscription 131 00:07:13,900 --> 00:07:20,220 is going to go ahead and show as expired and it will turn the user interface back to white. 132 00:07:20,260 --> 00:07:25,090 Our ads are there earn our ads are not there as part of our subscription. 133 00:07:25,090 --> 00:07:27,780 Wow guys this is really really cool. 134 00:07:27,880 --> 00:07:33,540 So let's go ahead and head into main storyboard and let's set up our food Zyla label to turn white. 135 00:07:33,550 --> 00:07:41,290 When we want it to let's just right click and drag from that label and we'll just say food Zilah label 136 00:07:42,280 --> 00:07:46,130 go back into the store front and in our handling function. 137 00:07:46,270 --> 00:07:47,460 Go ahead and call. 138 00:07:47,670 --> 00:07:49,330 Let's just say self. 139 00:07:49,510 --> 00:07:55,840 Food Zyla label dot text color and we're going to set it to be a color literal of white when the background 140 00:07:55,840 --> 00:08:02,480 is dark and then we're going to go ahead and change it back to the same dark gray color. 141 00:08:02,800 --> 00:08:03,000 Yeah. 142 00:08:03,010 --> 00:08:06,970 This one here when the subscriptions expired so let's build and run. 143 00:08:06,970 --> 00:08:09,890 Let's see how our dark mode looks. 144 00:08:10,510 --> 00:08:11,500 So cool guys. 145 00:08:11,530 --> 00:08:13,140 Awesome awesome awesome. 146 00:08:13,150 --> 00:08:16,270 So a building run here let's see. 147 00:08:16,270 --> 00:08:22,100 Subscription is active and food Zyla turns white that looks so cool. 148 00:08:22,310 --> 00:08:23,920 And guys this is amazing. 149 00:08:23,920 --> 00:08:25,660 Our subscription is working. 150 00:08:25,660 --> 00:08:30,910 I do want to add one more thing that will allow us basically just for testing purposes. 151 00:08:30,910 --> 00:08:36,400 I found that it was really really helpful to have a print out that showed how many minutes I had left 152 00:08:36,880 --> 00:08:38,500 it was just helpful to see. 153 00:08:38,590 --> 00:08:44,890 And so what I'm actually going to do is inside our function where we check if it's active which is in 154 00:08:44,890 --> 00:08:47,720 our IP service way up here. 155 00:08:48,130 --> 00:08:54,190 What we're going to do is we're actually going to go ahead and print out the expiration date and then 156 00:08:54,190 --> 00:08:59,260 we're going to use something called time interval since now which basically gives us the amount of seconds 157 00:09:00,310 --> 00:09:04,650 until the expiration date and then we're just going to divide it by 60 to get the amount of minutes. 158 00:09:04,660 --> 00:09:13,820 So go ahead and call debug print and then we're going to actually print out time remaining time remaining 159 00:09:14,830 --> 00:09:21,080 and then we can go ahead and pass in the expiration date Dot time interval since now which says the 160 00:09:21,080 --> 00:09:24,400 time interval between the date value and the current date and time. 161 00:09:24,500 --> 00:09:29,210 So it tells us how long we have until this subscription and then basically we're just going to divide 162 00:09:29,210 --> 00:09:33,950 that by 60 and print it out and that'll tell us how many minutes we have. 163 00:09:33,950 --> 00:09:37,590 Now it's saying value of optional type not unwrapped. 164 00:09:37,940 --> 00:09:38,760 And that's true. 165 00:09:38,780 --> 00:09:41,890 So we need to think about how we're going to handle this. 166 00:09:42,200 --> 00:09:47,120 You know what at this point we have reloaded the expiration date so we know it's going to be good. 167 00:09:47,180 --> 00:09:51,760 So we can actually go ahead and put this in parentheses and force on rapid like so. 168 00:09:52,130 --> 00:09:55,240 So yeah build and run that and the arrow will go away. 169 00:09:55,250 --> 00:10:00,110 We do know we will have a date and we can you know print out the time remaining so. 170 00:10:00,140 --> 00:10:01,900 Now let's check it out. 171 00:10:01,910 --> 00:10:03,260 Awesome time remaining. 172 00:10:03,260 --> 00:10:13,100 And well let's add minutes to the end of that and it's like so and it'll say X minutes. 173 00:10:13,100 --> 00:10:15,680 OK so that's pretty cool 1.3 minutes. 174 00:10:15,830 --> 00:10:23,100 Let's just double check to make sure that's accurate 1.0 minutes it expires at 4:48 and 49 seconds that 175 00:10:23,210 --> 00:10:24,740 that could be about a minute. 176 00:10:24,980 --> 00:10:27,740 Let's say it should turn to 8:48 soon. 177 00:10:28,180 --> 00:10:35,850 And yeah that's cool that's going to let us check how many minutes we have BuildOn run. 178 00:10:35,900 --> 00:10:37,390 Very cool. 179 00:10:37,810 --> 00:10:40,160 And yeah point seven three minutes yeah that's about right. 180 00:10:40,160 --> 00:10:45,830 So in point seven three minutes whatever that means we're going to go ahead and verify that our subscription 181 00:10:46,070 --> 00:10:49,060 goes back to non active. 182 00:10:49,140 --> 00:10:54,910 And I just realized you know we could do we can call it subscription active from view will appear so 183 00:10:54,910 --> 00:10:59,840 that if we were to close out while this description expires Oh you know what you should see that if 184 00:10:59,840 --> 00:11:05,660 we were to open this and then close out like so we can call is subscription active and we could you 185 00:11:05,660 --> 00:11:07,070 know act accordingly. 186 00:11:07,070 --> 00:11:15,910 So let's go ahead and head into storefront Visi Lets call view will appear called Super view will appear 187 00:11:17,390 --> 00:11:25,640 and passen animated then we can go ahead and call IAP service instance dot is subscription active and 188 00:11:25,640 --> 00:11:30,850 for the completion handler we can just stay active and we dont actually have to do anything in that. 189 00:11:30,850 --> 00:11:34,670 We just want to call it now we could make the completion händler optional. 190 00:11:34,820 --> 00:11:36,490 I'm just not going to. 191 00:11:36,500 --> 00:11:41,080 So let's go ahead let's build and run let's just verify that our subscription is good to go. 192 00:11:41,090 --> 00:11:47,300 And actually I think it's expired at the moment so we should see inactive and yes as you can see the 193 00:11:47,300 --> 00:11:48,890 subscription has expired. 194 00:11:48,890 --> 00:11:53,320 If I open up a screen you can see the ads are back but watch what happens when I close it. 195 00:11:53,320 --> 00:11:59,120 Now when the view appears it tells me how many minutes are remaining and that means my subscription 196 00:11:59,120 --> 00:12:00,340 is not active. 197 00:12:00,500 --> 00:12:08,600 So what I can do is I can go ahead and resubscribe tap confirm purchase confirm subscription and my 198 00:12:08,600 --> 00:12:09,880 subscription is active. 199 00:12:09,890 --> 00:12:12,190 Now if I open it the ads are gone. 200 00:12:12,230 --> 00:12:14,720 If I close it it gives me the time remaining. 201 00:12:14,720 --> 00:12:16,790 So yeah guys our subscription is valid. 202 00:12:16,790 --> 00:12:22,250 We have about four minutes left and this is this is it guys this is how you do auto renewing subscriptions 203 00:12:22,260 --> 00:12:26,540 and AOS we're able to subscribe when it expires. 204 00:12:26,540 --> 00:12:33,260 The user interface changes the feature the features change and we're able to pretty much control whatever 205 00:12:33,260 --> 00:12:36,840 we want using our IAP sub info has changed notification. 206 00:12:36,860 --> 00:12:38,190 Very very cool. 207 00:12:38,210 --> 00:12:43,070 There is our subscription interface again and our ads that are gone which is cool. 208 00:12:43,100 --> 00:12:48,560 So let's go ahead and let's head over to the very last video where I'm going to give you a little challenge 209 00:12:48,560 --> 00:12:49,940 to make this app even better. 210 00:12:50,000 --> 00:12:52,440 So let's head over there now.