1 00:00:00,660 --> 00:00:06,570 So now in case the value of the bike in uncolored is red then it's going to actually execute these lines 2 00:00:06,570 --> 00:00:07,250 of code here. 3 00:00:07,260 --> 00:00:08,040 As you can see. 4 00:00:08,190 --> 00:00:13,730 So first it's going to actually set the background color to read and increase linearly out that set 5 00:00:13,740 --> 00:00:15,630 by your own color color that red. 6 00:00:15,750 --> 00:00:17,870 So now let me show you the emulator. 7 00:00:18,030 --> 00:00:21,890 So now as you can see here our application is running on this emulator. 8 00:00:22,050 --> 00:00:27,510 And now let's actually go inside the setting activity and here let's actually change the background 9 00:00:27,510 --> 00:00:31,790 color to red and now it says new changes are applied. 10 00:00:31,800 --> 00:00:36,630 And if I click on the spike bash button here at the top as you can see the background color is now red 11 00:00:37,370 --> 00:00:40,380 and here is when I try to execute this for loop here. 12 00:00:40,380 --> 00:00:45,820 So it's got it right over the values of these rows of spottiness in animal cuius as you can see here. 13 00:00:46,140 --> 00:00:48,420 And then it's going I should put this inner for loop. 14 00:00:48,480 --> 00:00:52,220 So in Cullom 0 and then it's going to execute this. 15 00:00:52,260 --> 00:00:58,530 Actually it is a follow up until the value of this column is less than the value of the child count 16 00:00:58,890 --> 00:01:00,090 of this row. 17 00:01:00,450 --> 00:01:05,220 And then it's going actually that adds one value to the value of this column variable after each execution 18 00:01:05,220 --> 00:01:06,100 of this war. 19 00:01:06,450 --> 00:01:11,430 So as you can see here here we are actually creating a reference to these buttons as you can see. 20 00:01:11,430 --> 00:01:15,720 And then here we are actually sitting back and uncolored of these buttons two colors that's blue. 21 00:01:15,990 --> 00:01:22,500 So the back in uncolored of these buttons is by actually blue and button that takes color the color 22 00:01:22,500 --> 00:01:23,340 that white. 23 00:01:23,460 --> 00:01:28,870 So as you can see it actually takes Colored of these buttons is actually white right. 24 00:01:28,890 --> 00:01:34,770 So now we are setting the color of the answers to colors that white. 25 00:01:34,770 --> 00:01:40,290 So now if we actually choose elephant here as you can see now the color of this the X the answer is 26 00:01:40,290 --> 00:01:41,020 white. 27 00:01:41,460 --> 00:01:45,390 And here we are sitting that here is the question number two color dot white. 28 00:01:45,390 --> 00:01:51,750 So as you can see the truly the color of this asks the question number is white and he had finally you 29 00:01:51,750 --> 00:01:57,650 can see this brave statement and now we have this case statement as you can see. 30 00:01:57,750 --> 00:02:02,760 So in case the value of the bike and color is actually yellow. 31 00:02:02,910 --> 00:02:06,140 So now let me actually go to the settings activity. 32 00:02:06,240 --> 00:02:10,870 And now let me change the background color to yellow as you can see here. 33 00:02:10,990 --> 00:02:13,900 And now if we click on dispatch button here at the top. 34 00:02:14,010 --> 00:02:19,380 Now as you can see here the Paglen colored is yellow soap and it will quickly lay out that set back 35 00:02:19,380 --> 00:02:21,830 in and color color that yellow. 36 00:02:22,410 --> 00:02:28,120 And here again we have the for loop in order to try to iterate over the buttons that we have here inside 37 00:02:28,130 --> 00:02:28,720 the squeeze. 38 00:02:28,920 --> 00:02:32,250 And we're going to actually set the back in uncolored of the spot into black. 39 00:02:32,430 --> 00:02:38,000 So let's actually look at this for loop here linearly out row and here and here is going to iterate 40 00:02:38,040 --> 00:02:45,000 over the values of these rows of guess spottiness in and Im always Aure And here is can actually execute 41 00:02:45,000 --> 00:02:46,830 this inner for loop. 42 00:02:46,830 --> 00:02:51,340 So for int column and the value of this column is 0 initially. 43 00:02:51,720 --> 00:02:57,060 And here it's going to execute this for loop until the value of this column variable is less than the 44 00:02:57,060 --> 00:03:00,110 value of this child count of this throw. 45 00:03:00,480 --> 00:03:06,390 And then actually it's going to increment the value of this column by one after each execution of this 46 00:03:06,390 --> 00:03:07,260 for loop. 47 00:03:07,650 --> 00:03:12,240 And here we have actually these lines of code so here you are actually creating a reference to these 48 00:03:12,240 --> 00:03:12,980 buttons. 49 00:03:13,290 --> 00:03:18,180 And here as you can see you're setting the background color of this button to color that black. 50 00:03:18,390 --> 00:03:21,490 So the background color of these buttons is actually black. 51 00:03:21,840 --> 00:03:25,550 And here we are starting the text color of this button to color that white. 52 00:03:25,560 --> 00:03:29,300 So as you can see the text color of these buttons is actually watched. 53 00:03:29,730 --> 00:03:35,930 And finally we are certain that the answer that takes color as you can see here to color that black. 54 00:03:36,060 --> 00:03:43,500 So now let me address the animal beard and here as you can see that the answer colored is black A.S.C. 55 00:03:43,560 --> 00:03:46,490 question number that takes colored colored That black. 56 00:03:46,500 --> 00:03:52,110 So as you can see here the color of this takes the question up question number is actually black. 57 00:03:52,470 --> 00:03:55,090 And finally we have this black statement. 58 00:03:55,320 --> 00:04:00,920 So now so now that we have these Moffats here inside this main activity fragment of a fight literally 59 00:04:01,020 --> 00:04:06,450 to go inside say this main activity main activity or double file here and now literally go inside this 60 00:04:06,450 --> 00:04:07,780 man with the class. 61 00:04:08,160 --> 00:04:14,940 And here we're going to actually put some lines of code inside this on shared preference changed method. 62 00:04:15,090 --> 00:04:21,060 So remember that I told you this if it is going to be executed every time we actually change the settings 63 00:04:21,240 --> 00:04:25,990 of this application so I can see for example when I change the number of guesses here. 64 00:04:26,060 --> 00:04:31,440 Does class this mean activity classes actually a listener and this class is going to be notified of 65 00:04:31,440 --> 00:04:32,430 these changes. 66 00:04:32,430 --> 00:04:37,090 So for example if I change the background color This class is going to be notified of those changes. 67 00:04:37,260 --> 00:04:44,040 And every Actually every change that I make to these settings this class here this man computer class 68 00:04:44,280 --> 00:04:50,390 is going to be notified because I actually make it make this class a listener to those changes. 69 00:04:50,490 --> 00:04:55,940 As you can see here if you look at this line of code here preference manager that gets the file sharing 70 00:04:55,950 --> 00:04:56,720 preferences. 71 00:04:56,880 --> 00:05:02,290 First we pass this context in order to specify that this class is going to be the listener. 72 00:05:02,590 --> 00:05:07,070 And here we are calling this method on this actually on this object. 73 00:05:07,240 --> 00:05:12,400 So that register on shares through friends change listener settings change listeners. 74 00:05:12,460 --> 00:05:15,290 This is the name of this listener that we specify in this class. 75 00:05:15,460 --> 00:05:20,890 And as you can see here I actually created this listener here inside this class and here we need to 76 00:05:20,890 --> 00:05:24,490 actually provide an implementation for this method. 77 00:05:24,520 --> 00:05:25,310 Right. 78 00:05:25,390 --> 00:05:28,310 So analysis actually I'm going to paste in some lines of code here. 79 00:05:28,310 --> 00:05:32,480 Inside this method and then I'm going to explain to you what's going on here.