1 00:00:00,360 --> 00:00:07,740 So now that we know that we have this handler here and now we know that this hand really is actually 2 00:00:07,740 --> 00:00:10,890 initialized Let's actually scroll down here. 3 00:00:10,890 --> 00:00:13,310 Now let me show you this statement here. 4 00:00:13,320 --> 00:00:17,370 As you can see this is the part that is going to be executed right. 5 00:00:17,460 --> 00:00:19,980 So now let's look at this block of code here. 6 00:00:20,070 --> 00:00:26,580 As you can see inside the curly braces of this statement we have this handler we referred to this handler 7 00:00:26,880 --> 00:00:28,630 that post late. 8 00:00:28,680 --> 00:00:32,810 So now let me show you the emulator as you can see here. 9 00:00:32,820 --> 00:00:34,950 Now we have this eagle here. 10 00:00:34,950 --> 00:00:38,430 And now let me actually choose eagle here as you can see here. 11 00:00:38,430 --> 00:00:43,860 It weights about one or two seconds and then the next question appears here. 12 00:00:43,920 --> 00:00:44,700 Right. 13 00:00:44,760 --> 00:00:47,520 So now let's actually go back to our Android studio. 14 00:00:47,520 --> 00:00:51,860 So here I referred to his handler handler at that post delayed. 15 00:00:52,010 --> 00:00:56,400 So now when I tried to evade it and when I tried to create a delay here. 16 00:00:56,670 --> 00:00:58,510 And then the next question appears. 17 00:00:58,560 --> 00:01:00,580 So handler that post delayed. 18 00:01:00,720 --> 00:01:07,890 And then he had to create a new runnable object so new runnable and then inside the curly braces of 19 00:01:07,890 --> 00:01:14,430 this runnable here as you can see now I can actually write this run Meffert here and then it's going 20 00:01:14,430 --> 00:01:16,240 to run animate animalcules. 21 00:01:16,260 --> 00:01:17,770 True right. 22 00:01:17,880 --> 00:01:23,610 So for example here we have a cat and if we actually select this cat here it's going to wait about one 23 00:01:23,610 --> 00:01:28,790 or two seconds and then the next question appears here at the next image appears here. 24 00:01:28,800 --> 00:01:35,850 So inciter run if we need to actually put the lines of code that we want to actually execute after that 25 00:01:35,970 --> 00:01:38,170 amount of time that we specify here. 26 00:01:38,340 --> 00:01:44,580 So as you can see here after the end in praise of this actually posted a method as you can see here 27 00:01:45,030 --> 00:01:46,060 we have a comma. 28 00:01:46,170 --> 00:01:46,810 Right. 29 00:01:46,890 --> 00:01:51,560 And then here we need to specify the amount of time that we want to wait. 30 00:01:51,750 --> 00:01:54,990 And then we can actually execute this run method here. 31 00:01:55,260 --> 00:02:03,050 So for example here after one circuit as you can see here 1000 milliseconds as is actually for one second. 32 00:02:03,180 --> 00:02:09,420 For example 2000 two thousand milliseconds is actually four to six. 33 00:02:09,480 --> 00:02:14,930 As you can see here he actually created a comment and it says two thousand milliseconds for two second 34 00:02:14,940 --> 00:02:20,780 delay or for example three thousand milliseconds for free second delay. 35 00:02:21,020 --> 00:02:21,450 OK. 36 00:02:21,510 --> 00:02:27,600 So after this amount of time that we specify here the run method here is going to be executed. 37 00:02:27,600 --> 00:02:30,020 So that's the job of this handler here. 38 00:02:30,240 --> 00:02:35,910 And now let me specify that all these codes are actually executed in India. 39 00:02:35,910 --> 00:02:44,700 Actually if it is in the user interface in the GUI actually Fred in the User Interface Fred. 40 00:02:44,790 --> 00:02:45,280 OK. 41 00:02:45,450 --> 00:02:51,630 So for example here we have a snitch and effectually select a snake here about for example. 42 00:02:51,870 --> 00:02:53,070 Two seconds. 43 00:02:53,080 --> 00:02:57,310 It's it's going to evade and then it's going to execute the run method. 44 00:02:57,330 --> 00:03:02,910 As you can see here which is this Meffert animate animal cookies and then the next picture the next 45 00:03:02,910 --> 00:03:04,200 question appears. 46 00:03:04,500 --> 00:03:10,120 And then as you can see here we need to actually create this Meffert inside our class and this method 47 00:03:10,140 --> 00:03:12,150 accepts an argument of type Boolean. 48 00:03:12,180 --> 00:03:14,310 And here I assigned you to. 49 00:03:14,340 --> 00:03:15,810 So it's going to animate the squeeze. 50 00:03:15,840 --> 00:03:18,730 And then it's going to change that question. 51 00:03:18,840 --> 00:03:20,490 So let me explain here again. 52 00:03:20,520 --> 00:03:24,490 What's going on so now let me delete this comment here. 53 00:03:24,510 --> 00:03:27,230 Now let me explain this as a block of code here. 54 00:03:27,240 --> 00:03:31,230 Again here we have inside this Else statement. 55 00:03:31,260 --> 00:03:34,270 We have this handler that post delayed. 56 00:03:34,290 --> 00:03:39,420 So this method is going to actually do something and it's going to actually keep us an option in order 57 00:03:39,420 --> 00:03:42,190 to do something after an amount of time. 58 00:03:42,240 --> 00:03:49,380 So handler that post delayed new runnable So we need to create a reasonable object here and that here 59 00:03:49,410 --> 00:03:56,460 inside the curly braces as you can see I need to override the run method and then I can put the lines 60 00:03:56,460 --> 00:04:03,330 of code that you want to be executed after this amount of after this amount of time here as you can 61 00:04:03,330 --> 00:04:03,860 see here. 62 00:04:04,080 --> 00:04:05,780 After this a comma. 63 00:04:06,060 --> 00:04:06,630 Right. 64 00:04:06,840 --> 00:04:13,050 So you actually overwrite that on Mefford And then after the comma here as you can see if you can actually 65 00:04:13,050 --> 00:04:17,910 put the amount of time that you want to wait that after that it's going to actually execute this method 66 00:04:17,910 --> 00:04:18,650 here. 67 00:04:19,050 --> 00:04:24,840 So for our application I want to actually rate 1000 milliseconds which is actually even just for one 68 00:04:24,840 --> 00:04:25,870 second delay. 69 00:04:26,430 --> 00:04:29,160 So hopefully that makes sense. 70 00:04:29,160 --> 00:04:33,590 And now as you can see let's see what is the else statement here. 71 00:04:33,600 --> 00:04:34,640 So now let me actually. 72 00:04:34,640 --> 00:04:39,190 So before the end in curly brace here before this statement as you can see here we have this. 73 00:04:39,470 --> 00:04:45,480 And the curly brace and here you can just double click here in order to see to the lines of code that 74 00:04:45,510 --> 00:04:47,250 are inside of this block. 75 00:04:47,280 --> 00:04:54,060 So as you can see here we have this statement and it says if this value that equals and value and this 76 00:04:54,060 --> 00:04:59,220 means that if the user actually gets the animal right animal name right. 77 00:04:59,220 --> 00:05:05,500 For example here we have a horse and if we actually chose if we choose this horse here this means that 78 00:05:05,500 --> 00:05:13,210 here this block of this expression here evaluates to true if gets valued that equals and sell value. 79 00:05:13,210 --> 00:05:19,570 And if this means this means that the user has just the animal name it true right. 80 00:05:19,860 --> 00:05:22,930 OK then he's going to execute this if statement otherwise. 81 00:05:22,930 --> 00:05:29,720 So for example here we have a left leopard and he had used this horse here and here it says no right. 82 00:05:29,740 --> 00:05:35,560 So otherwise if this expedition here evaluates to false then it's going to actually execute this statement 83 00:05:35,560 --> 00:05:37,050 here at the bottom. 84 00:05:37,060 --> 00:05:42,670 So by double clicking here before the end in calibrates you can see the lines of code that are inside 85 00:05:42,670 --> 00:05:43,200 of this block. 86 00:05:43,210 --> 00:05:47,080 And then you can actually differentiate between your blocks of code here. 87 00:05:47,140 --> 00:05:48,190 Right. 88 00:05:48,190 --> 00:05:49,610 So hopefully that makes sense. 89 00:05:49,630 --> 00:05:54,700 And now it just means that if they use that if the users case is not right then it's going to execute 90 00:05:54,700 --> 00:05:59,890 this statement or any animal that starts the animation wrong answer animation. 91 00:05:59,890 --> 00:06:04,660 So as you can see here if it's actually de-select shark this is the wrong answer animation right. 92 00:06:04,660 --> 00:06:10,540 If I isolate goes wrong answer animation and then it's going to actually set a text to this. 93 00:06:10,560 --> 00:06:17,440 He actually answers so he actually answers that said text are streamed dot rant and Selma's message. 94 00:06:17,680 --> 00:06:19,390 So as you can see he had the wrong answer. 95 00:06:19,410 --> 00:06:20,600 Message is no. 96 00:06:20,800 --> 00:06:25,090 So let's actually copy disvalue here ran under a line and said underlying message. 97 00:06:25,180 --> 00:06:30,790 And now let's actually go inside these strings that exemplified and then he'll essentially create a 98 00:06:30,790 --> 00:06:36,140 string resource strange and let's paste this value here. 99 00:06:36,400 --> 00:06:38,120 And let's actually close this tag. 100 00:06:38,290 --> 00:06:40,310 And here I can just type in No. 101 00:06:40,990 --> 00:06:45,220 And now let's actually go back to our main activity fragment of a file and here as you can see here 102 00:06:45,460 --> 00:06:46,810 the error is gone. 103 00:06:46,960 --> 00:06:52,690 And now I actually referred to this between and just so between guess is the button that we actually 104 00:06:52,690 --> 00:06:53,350 touch. 105 00:06:53,350 --> 00:06:56,460 So between us that set in a set enabled false. 106 00:06:56,470 --> 00:06:59,330 So for example I touched this horse right. 107 00:06:59,350 --> 00:07:03,520 I can't again touch this button as you can see here. 108 00:07:03,520 --> 00:07:11,020 This button is actually disabled or I can't touch this shark here or can't touch this code but let's 109 00:07:11,200 --> 00:07:12,280 touch this snake. 110 00:07:12,520 --> 00:07:16,500 As you can see this right answer animation is actually occurring here. 111 00:07:16,510 --> 00:07:19,230 And again I can't touch this snake here. 112 00:07:19,240 --> 00:07:21,850 I can't actually press on this snake. 113 00:07:22,240 --> 00:07:24,820 So hopefully that makes sense. 114 00:07:24,850 --> 00:07:29,520 And now let's actually again look at our lines of code here. 115 00:07:29,530 --> 00:07:35,530 Inside this listener as you can see here we have some of these methods here that we need to actually 116 00:07:35,890 --> 00:07:36,300 create. 117 00:07:36,300 --> 00:07:41,030 For example we need to create this get the exact animal name it. 118 00:07:41,050 --> 00:07:43,820 So now let's actually scroll down here. 119 00:07:44,060 --> 00:07:50,050 And after the ending curly brace of this listener which is this ending brace which you need to put a 120 00:07:50,050 --> 00:07:51,500 semicolon here. 121 00:07:51,520 --> 00:07:56,890 Here let's actually create that method to get the exact get the exact name of the animal. 122 00:07:57,190 --> 00:08:03,070 So now I'm going to paste in some lines of code here and then I'm going to explain to you what's going 123 00:08:03,070 --> 00:08:03,870 on here.