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These are the user uploaded subtitles that are being translated: 1 00:00:00,760 --> 00:00:06,820 Hello, guys, as this story, I will talk about the bottom bow section, since I got many questions 2 00:00:06,820 --> 00:00:08,230 about the same thing. 3 00:00:09,070 --> 00:00:11,790 You've tried my court and you got some others. 4 00:00:11,800 --> 00:00:13,840 It's because of the safety. 5 00:00:13,870 --> 00:00:15,630 There is nothing wrong with the court. 6 00:00:16,810 --> 00:00:19,940 So as a story, I will show you how can you fix it? 7 00:00:20,380 --> 00:00:26,820 The solution is very easy, but before that we start, I recommend you to watch the lecture three about 8 00:00:26,830 --> 00:00:28,690 in our safety as U.S. one. 9 00:00:30,280 --> 00:00:38,530 OK, so watch it and check the results as I as I gave you money, resources that you can follow it or 10 00:00:38,530 --> 00:00:43,930 you can get or use the same code that I wrote and it will not make any errors. 11 00:00:44,200 --> 00:00:47,050 I made everything clear in this section. 12 00:00:47,440 --> 00:00:54,820 OK, so go back if you are advanced and watch it again, it would make everything clearer for you. 13 00:00:56,030 --> 00:00:58,170 OK, so let's get started now. 14 00:00:58,760 --> 00:01:02,120 So to get started, there is many ways to fix it. 15 00:01:02,540 --> 00:01:07,070 I will cut the process and simply did. 16 00:01:07,070 --> 00:01:09,170 It's a slight change to. 17 00:01:09,500 --> 00:01:12,770 For now, all the errors has gone. 18 00:01:13,850 --> 00:01:16,580 OK, so this is a simple solution. 19 00:01:18,700 --> 00:01:20,970 Let's round the up again, let's see what will happen. 20 00:01:31,690 --> 00:01:33,580 OK, so let's check the council. 21 00:01:33,610 --> 00:01:38,330 There is nothing wrong, and in here it is working fine. 22 00:01:39,310 --> 00:01:42,350 There is another solution and there is actually many solution. 23 00:01:42,820 --> 00:01:48,010 I will show you the different solution, which, as I explained also and the clear section of the bottom 24 00:01:48,010 --> 00:01:48,300 bar. 25 00:01:49,990 --> 00:01:53,490 So I will just common sense again. 26 00:01:55,620 --> 00:02:04,120 Common sense also and no comment, yes, no, we need to fix something before that continue and the 27 00:02:04,470 --> 00:02:09,910 we are using this page list and check the title for it. 28 00:02:10,980 --> 00:02:18,440 This list is an Objectivist constitute all classes, so it cannot be used as a string. 29 00:02:18,450 --> 00:02:24,440 So I would just commence Essabar and I showed you as your last tutorial about the bottom line. 30 00:02:24,720 --> 00:02:26,020 How can you fix it? 31 00:02:26,910 --> 00:02:32,300 I mean, how can you use Anapa for each section of this, OK? 32 00:02:32,730 --> 00:02:38,470 You can't just disable that and use it in each screen in our class that you initialize it to the screen. 33 00:02:39,090 --> 00:02:39,930 OK, so. 34 00:02:41,940 --> 00:02:47,610 And anyways, we did it and of course, later on and in here, we don't need the speech, so I would 35 00:02:47,610 --> 00:02:48,620 just delete it. 36 00:02:48,630 --> 00:02:51,940 I would call the process again and round the up once more. 37 00:02:52,380 --> 00:02:53,730 So let's see what would happen. 38 00:02:56,140 --> 00:03:02,380 OK, so the construction is finished now and it is working as we expected. 39 00:03:02,770 --> 00:03:08,600 OK, we also can initialize it, not in here. 40 00:03:08,680 --> 00:03:17,560 We can't just do like this then Bastet like here and the end state and put it equal to this and still 41 00:03:17,560 --> 00:03:18,670 having an error in here. 42 00:03:19,030 --> 00:03:26,470 We can use quantifier, but it's why you made an error and let's modify it means and the safety that 43 00:03:26,470 --> 00:03:32,840 this value or this variable must have value later on was the up running. 44 00:03:33,640 --> 00:03:41,560 So once we go to any screen or once the up is being running, this page must have a value. 45 00:03:42,380 --> 00:03:45,700 OK, so let's restart the up and see what would happen. 46 00:03:48,050 --> 00:03:53,830 OK, so nothing wrong because we it and the state, let's make sure that we there is nothing wrong. 47 00:03:53,840 --> 00:03:56,280 So I will call the process and run it again. 48 00:03:56,570 --> 00:03:58,730 And now let's see what will happen. 49 00:04:03,460 --> 00:04:09,440 So as I said earlier, for me, it means that this variable must be initialized later on. 50 00:04:10,420 --> 00:04:16,540 So if I didn't initialize it in here, it will make an error and the error would be clear since it is 51 00:04:16,540 --> 00:04:17,160 not safety. 52 00:04:18,160 --> 00:04:23,640 So it is working very well now because we initialize it already in here. 53 00:04:24,230 --> 00:04:24,630 Right. 54 00:04:25,180 --> 00:04:28,180 There is many ways you can get rid of. 55 00:04:29,380 --> 00:04:31,300 The state modifier and. 56 00:04:32,710 --> 00:04:34,300 Do like this. 57 00:04:35,800 --> 00:04:38,620 Simply, this is me that says, well, you can be not. 58 00:04:39,680 --> 00:04:49,160 OK, but we got an error in here, this error means that we need to add a check to identify that this 59 00:04:49,160 --> 00:04:51,800 value, maybe not, but it would make another. 60 00:04:53,800 --> 00:04:55,240 So let's see. 61 00:04:57,620 --> 00:05:04,270 All right, so it didn't make sense, we are we did initialize it in here, but if I deleted. 62 00:05:05,470 --> 00:05:06,490 At the start. 63 00:05:07,750 --> 00:05:09,250 For sure it would make an hour. 64 00:05:10,450 --> 00:05:12,780 OK, so I showed you many ways to do it. 65 00:05:12,880 --> 00:05:19,060 So once you understand how we deal with this, you will deal with everything later on, uh, related 66 00:05:19,060 --> 00:05:20,080 to the safety. 67 00:05:20,080 --> 00:05:28,960 OK, you will face, Mariarosa, about the initialization of the variables and just arj on interrogation 68 00:05:28,960 --> 00:05:34,090 marketing here and just fix it, just as I show you in here. 69 00:05:34,120 --> 00:05:42,640 OK, so I get us a lot better value than use and I'll check just a thought or if you initialize it later 70 00:05:42,640 --> 00:05:49,470 on, use a leitmotiv modifier and this is work for everything and not safety. 71 00:05:49,630 --> 00:05:51,190 It is something very good. 72 00:05:51,190 --> 00:05:59,010 And I do recommend you to update your SDK because it would help you to catch errors and deal with errors. 73 00:05:59,020 --> 00:06:00,310 It was more efficiency. 74 00:06:00,700 --> 00:06:05,350 And if you have any question, you can ask me and I will answer you and dictate. 6708