1 00:00:00,680 --> 00:00:05,650 So now as you can see now these changes actually happened here. 2 00:00:05,690 --> 00:00:10,520 Now that takes the size of this uptakes view to is actually changed. 3 00:00:10,520 --> 00:00:11,790 This is text number two. 4 00:00:11,900 --> 00:00:18,070 So if I click on the menu button settings and then here click on this specify the the size of your phone's 5 00:00:18,070 --> 00:00:19,730 for text view too. 6 00:00:19,790 --> 00:00:25,670 Now if I actually change that size to 65 and then click a button and the Arty's human for this card. 7 00:00:25,670 --> 00:00:26,390 Right. 8 00:00:26,390 --> 00:00:29,700 So here you can see that the size is changed. 9 00:00:29,840 --> 00:00:32,940 Now the size of this text is now much larger. 10 00:00:33,050 --> 00:00:33,950 Right. 11 00:00:34,070 --> 00:00:37,950 So that is actually the other method for text view of the. 12 00:00:38,120 --> 00:00:43,170 So after the end in curly brace of these specify the size four takes you to Merfeld. 13 00:00:43,190 --> 00:00:49,310 Here inside is an activity class I actually pasted another method and then I'm going to explain to you 14 00:00:49,520 --> 00:00:51,040 what's going on here. 15 00:00:51,050 --> 00:00:55,080 So as you can see here these are the lines of code that I actually pasted here. 16 00:00:55,100 --> 00:00:58,120 I pasted this method here inside our main activity class. 17 00:00:58,130 --> 00:01:03,890 So again the access modifier of this method is probably the return type of this method is void and the 18 00:01:03,890 --> 00:01:08,250 name of this method is specified the size for pixel view free. 19 00:01:08,300 --> 00:01:10,930 Right and now I am inside the Smurfette. 20 00:01:10,940 --> 00:01:16,430 And again I referred to the name of this variable takes a view of the size that I actually declared 21 00:01:16,460 --> 00:01:19,130 inside our main activity class here at the top. 22 00:01:19,150 --> 00:01:24,620 These are variables that I declared which is of type streambed and that the name of this valuable is 23 00:01:24,620 --> 00:01:25,550 text view. 24 00:01:25,630 --> 00:01:27,250 Freesias right. 25 00:01:27,290 --> 00:01:32,870 So now I am inside this method an assignment operator shared preferences. 26 00:01:32,870 --> 00:01:37,790 So I referred to the name of this object shirred preferences that get strange. 27 00:01:37,790 --> 00:01:40,610 So you want to get the string value of the size. 28 00:01:40,670 --> 00:01:45,380 And here I need to refer to the name of this key that I have inside these preferences underline firelit 29 00:01:45,410 --> 00:01:46,080 example. 30 00:01:46,280 --> 00:01:52,750 So here as you can see inside this preference category that its title is Text Number three sittings. 31 00:01:52,850 --> 00:01:58,510 I have this list preference and this is the key that I actually felt inside my main activity class. 32 00:01:58,580 --> 00:02:00,140 Font size takes three. 33 00:02:00,290 --> 00:02:06,710 So I need to refer to this key in order to access the values the font size values of this list preference. 34 00:02:06,710 --> 00:02:08,980 So let's go inside this main activity that type of file. 35 00:02:09,140 --> 00:02:10,850 So font size takes three. 36 00:02:10,850 --> 00:02:11,180 Right. 37 00:02:11,180 --> 00:02:13,100 This is the key and this is the default value. 38 00:02:13,270 --> 00:02:16,130 OK and inline one hundred and eighty. 39 00:02:16,130 --> 00:02:22,320 First I need to refer to the name of RTX the text number of free data set text size. 40 00:02:22,340 --> 00:02:25,440 So here I am actually setting the size of my text view. 41 00:02:25,730 --> 00:02:31,400 And because we are receiving those takes those values as a string value we need to convert those values 42 00:02:31,400 --> 00:02:35,420 to a float value in order to change the size of our view right. 43 00:02:35,420 --> 00:02:39,360 So float that parse float takes few freesias. 44 00:02:39,470 --> 00:02:40,220 This is our value. 45 00:02:40,230 --> 00:02:41,500 All right. 46 00:02:41,510 --> 00:02:47,780 So now let's run our project again and again we are actually making the same mistake and the mistake 47 00:02:47,840 --> 00:02:54,380 that mistake is we didn't call this Smurfit this specify the size for the next few free inside our on 48 00:02:54,380 --> 00:02:55,040 resume efforts. 49 00:02:55,040 --> 00:02:57,310 So I need to refer to the name of that Nefert here. 50 00:02:57,470 --> 00:02:59,960 Specify the size for text view. 51 00:03:00,020 --> 00:03:01,290 Free Right. 52 00:03:01,310 --> 00:03:04,670 So now I can run our project and see what happens. 53 00:03:04,670 --> 00:03:09,160 So now as you can see our application is actually running on this emulator. 54 00:03:09,170 --> 00:03:12,250 And he had as you can see at the bottom this is our text. 55 00:03:12,280 --> 00:03:12,700 OK. 56 00:03:12,740 --> 00:03:14,070 This is text number free. 57 00:03:14,150 --> 00:03:19,040 So now if we want to actually change the size of this text view I just need to click on this menu button 58 00:03:19,040 --> 00:03:22,990 settings and here I just need to scroll down. 59 00:03:23,210 --> 00:03:28,940 As you can see I have these this text number three settings so I can actually select actually click 60 00:03:28,940 --> 00:03:31,030 on this option here. 61 00:03:31,070 --> 00:03:33,760 The size of your fonts for takes few free. 62 00:03:34,100 --> 00:03:38,770 And now I can actually specify a size for my text view for example 50. 63 00:03:39,170 --> 00:03:44,570 And now if I click on back button here now the on resume if it is called right and now as you can see 64 00:03:44,990 --> 00:03:47,120 this is text number free. 65 00:03:47,420 --> 00:03:54,200 I can actually change the font of the state's view for example to form Larry Brown and then click on 66 00:03:54,200 --> 00:03:54,840 back. 67 00:03:54,890 --> 00:04:02,240 Now again as you can see the front of my text changed this it takes number of free or I can actually 68 00:04:03,320 --> 00:04:09,450 click on batch button here and then if we actually to open my application again here are 51. 69 00:04:09,500 --> 00:04:14,430 Now as you can see these are truly these data have been saved. 70 00:04:14,750 --> 00:04:15,330 OK. 71 00:04:15,350 --> 00:04:21,170 Now we can see that the changes that we made to these takes views are actually saved and we can actually 72 00:04:21,380 --> 00:04:23,120 see these changes here. 73 00:04:23,120 --> 00:04:28,640 This is text number free so here I can actually increase the size of my taste we are free for example 74 00:04:29,030 --> 00:04:34,640 click on this option here again and click on 70 and click on back. 75 00:04:35,200 --> 00:04:40,010 And as you can see here that this text size of this text which is actually increased. 76 00:04:40,010 --> 00:04:45,560 So if I click on this menu button settings and then click on this option. 77 00:04:45,560 --> 00:04:46,520 Here again. 78 00:04:46,820 --> 00:04:49,760 Now as you can see it is 70 right. 79 00:04:49,760 --> 00:04:56,570 Or I can actually select 25 40 50 for gold or other values or I can and you actually click on cancel 80 00:04:57,020 --> 00:05:03,300 and then click on back and here as you can see we have these text views with these changes here. 81 00:05:03,350 --> 00:05:04,680 Right. 82 00:05:04,970 --> 00:05:06,620 So hopefully that makes sense. 83 00:05:06,650 --> 00:05:13,550 And another important point that I've not heard about in this tutorial is that first of all it's actually 84 00:05:13,550 --> 00:05:16,840 delayed our application from this emulator here. 85 00:05:16,850 --> 00:05:19,430 So now inside our emulator this is up. 86 00:05:19,430 --> 00:05:21,140 This is our app of 51. 87 00:05:21,230 --> 00:05:26,040 So it's actually selected and halted and uninstalled this application. 88 00:05:26,960 --> 00:05:28,760 And then let's actually click on OK here. 89 00:05:28,760 --> 00:05:31,870 So now our application is actually uninstalled from this emulator. 90 00:05:31,870 --> 00:05:32,690 Right. 91 00:05:32,690 --> 00:05:36,350 So let's actually run our application again. 92 00:05:36,700 --> 00:05:42,230 So now it's going to the install or application on the emulator again here and as you can see the resume 93 00:05:42,230 --> 00:05:46,630 of it is called right and here and here are our text views right. 94 00:05:46,700 --> 00:05:54,800 So now click on this menu abutments settings and now I want you to for example change the text size 95 00:05:54,830 --> 00:05:56,580 of my text number one. 96 00:05:56,580 --> 00:05:57,140 Right. 97 00:05:57,400 --> 00:05:59,030 My first text view. 98 00:05:59,120 --> 00:06:03,300 So I just need to click on this option here specify the size of your phone. 99 00:06:03,350 --> 00:06:04,950 For takes you one right. 100 00:06:04,970 --> 00:06:08,190 I just click on this here and here. 101 00:06:08,390 --> 00:06:16,030 For example the user may actually want to not decide not to actually choose one of these phones right. 102 00:06:16,160 --> 00:06:23,090 And then he actually clicks and this cancel here and then if he if he or she clicks on dispatch button 103 00:06:23,090 --> 00:06:25,320 here let's see what happens. 104 00:06:25,340 --> 00:06:32,030 And now as you can see the text size of these takes views are actually smaller. 105 00:06:32,030 --> 00:06:41,060 Why this is because of this a default value that you actually specified for this method for these methods 106 00:06:41,390 --> 00:06:48,020 you specified that if the user choose one of the sizes of the list preference that we put inside these 107 00:06:48,020 --> 00:06:55,400 preferences underline for example if the user chooses chooses one of these or font sizes that font size 108 00:06:55,400 --> 00:06:59,210 is going to be it's going to take effect on our tissues right. 109 00:06:59,390 --> 00:07:06,740 But if he or she can sell cancels that feature if he or she doesn't want to for example choose one of 110 00:07:06,740 --> 00:07:11,720 those sizes the default value is going to take effect. 111 00:07:11,720 --> 00:07:17,650 So what is the default value the default value is inside of these specified that the take the size for 112 00:07:17,650 --> 00:07:24,020 this view one or this one or this one as you can see I specified that the default value is 20. 113 00:07:24,050 --> 00:07:31,740 And as you can see here 20 and 20 and we are actually calling these three methods here inside our andr's 114 00:07:31,750 --> 00:07:32,750 your Meffert. 115 00:07:32,780 --> 00:07:33,410 OK. 116 00:07:33,650 --> 00:07:39,440 So that's why even we actually can cancel on our list preference here. 117 00:07:39,530 --> 00:07:45,020 As you can see if I click on this menu button and settings settings as you can see here and if I click 118 00:07:45,020 --> 00:07:50,570 on this here if I click on this cancel here and click on back here and resume if it is called. 119 00:07:50,720 --> 00:07:54,390 And these methods as you can see here are going to be executed. 120 00:07:54,560 --> 00:07:58,150 So the default value of these methods is actually 20. 121 00:07:58,280 --> 00:07:58,730 OK. 122 00:07:58,820 --> 00:08:05,060 So this value is going to take effect when the user clicks on the cancel on that at least three friends. 123 00:08:05,160 --> 00:08:08,590 Ok this is the least preference as you can see this is the list preference. 124 00:08:08,780 --> 00:08:15,410 And when I click on cancel the default value is going to actually specify that it is going to actually 125 00:08:15,410 --> 00:08:18,810 determine the text size of our text views. 126 00:08:18,910 --> 00:08:25,780 OK so if I actually click on for example 270 and then click click on back button here. 127 00:08:25,790 --> 00:08:31,430 Now you can see that the text size of this text view is actually the much larger. 128 00:08:31,430 --> 00:08:36,240 So hopefully that makes sense and I think that's enough for this application. 129 00:08:36,260 --> 00:08:42,800 So if you have any questions about these concepts that I'll touch you in this tutorial please post the 130 00:08:42,800 --> 00:08:47,000 discussion in the course and then I'll do my best to answer all of your questions. 131 00:08:47,000 --> 00:08:50,450 Thank you very much for watching and I'll see you in the next tutorial.