1 00:00:00,600 --> 00:00:05,730 That was the reason that we needed to actually cast this object to our putten object in order to let 2 00:00:05,730 --> 00:00:08,780 the compiler know that we are actually faring. 3 00:00:09,000 --> 00:00:09,810 But an object. 4 00:00:09,830 --> 00:00:12,460 OK not a view object or a text you object. 5 00:00:12,480 --> 00:00:13,260 OK. 6 00:00:13,260 --> 00:00:19,780 So here I want to actually specify that whenever we actually click on the spot in here something happens. 7 00:00:19,800 --> 00:00:20,400 OK. 8 00:00:20,640 --> 00:00:23,760 So I need to actually let this button know. 9 00:00:23,790 --> 00:00:30,660 So I want to actually let this button know that when ever a user clicked on this button it's going to 10 00:00:30,660 --> 00:00:33,440 actually respond by doing something. 11 00:00:33,480 --> 00:00:34,070 OK. 12 00:00:34,290 --> 00:00:39,070 So inside the main activity that Java I just need to refer to the name of this button here. 13 00:00:39,250 --> 00:00:43,760 That said unclick listener. 14 00:00:44,110 --> 00:00:51,150 OK here I am actually setting this object this button to actually listen to the clicks that we actually 15 00:00:51,930 --> 00:00:53,910 make on the spot in here. 16 00:00:53,910 --> 00:00:54,530 OK. 17 00:00:54,630 --> 00:00:58,820 So whenever I click on this button it's going to actually listen to that click OK. 18 00:00:59,010 --> 00:01:09,720 So between go that certain click listener knew OK view that unclick listener. 19 00:01:10,280 --> 00:01:15,630 OK so as you can see here it created these lines of code for us. 20 00:01:15,830 --> 00:01:16,590 OK. 21 00:01:17,090 --> 00:01:22,470 So here we are specifying that when ever a button is clicked. 22 00:01:22,700 --> 00:01:26,460 The lines of code inside these unclick is going to be executed. 23 00:01:26,480 --> 00:01:31,210 OK I'll talk more about these lines of code later. 24 00:01:31,390 --> 00:01:31,870 OK. 25 00:01:31,910 --> 00:01:36,720 But for now you just need to know that here are these lines of code. 26 00:01:36,720 --> 00:01:43,070 We are actually specifying that this button is going to listen to the clicks that we make to the clicks 27 00:01:44,000 --> 00:01:46,880 that a user make on that button. 28 00:01:46,880 --> 00:01:47,330 OK. 29 00:01:47,330 --> 00:01:55,700 So inside the Smurfette I can just typing t XTi resolved that said text. 30 00:01:55,700 --> 00:01:58,900 And that inside Apprentice's I can just put typing something. 31 00:01:58,930 --> 00:02:04,510 Ok for example button clicked OK. 32 00:02:04,580 --> 00:02:07,670 So now let's actually run our project and see what happens. 33 00:02:08,030 --> 00:02:08,520 OK. 34 00:02:08,600 --> 00:02:13,440 So as you can see here now our app is running on this emulator here. 35 00:02:13,850 --> 00:02:17,380 And as you can see here this is the result takes you here. 36 00:02:17,390 --> 00:02:18,060 OK. 37 00:02:18,470 --> 00:02:23,370 So now if you just click on the school button here let's see what happens. 38 00:02:23,570 --> 00:02:26,360 As you can see the text of this text is changed. 39 00:02:26,510 --> 00:02:34,790 Button clicked OK and now for example I can actually change this value to another value or whatever 40 00:02:34,790 --> 00:02:37,110 value that I want in the later tutorials. 41 00:02:37,250 --> 00:02:44,570 I'll talk more about our listeners and other materials related to this pattern here. 42 00:02:44,600 --> 00:02:45,330 OK. 43 00:02:45,750 --> 00:02:49,790 So I think it's enough for this application. 44 00:02:49,980 --> 00:02:53,540 And if you have any questions please post the discussion in the course. 45 00:02:53,600 --> 00:02:56,010 I'll do my best to answer your questions. 46 00:02:56,120 --> 00:03:00,800 And thanks very much for watching and I'll see you in the next tutorial.