1 00:00:00,180 --> 00:00:07,560 So you need to also have an arty adapter and I need to put a pad of angle brackets in order to specify 2 00:00:07,560 --> 00:00:10,480 the type of values of this area here. 3 00:00:10,530 --> 00:00:15,600 So first let me tell you the job of this it up after this area that it is going to connect our data 4 00:00:15,620 --> 00:00:16,440 up stream. 5 00:00:16,470 --> 00:00:20,270 Added that we created in say these things that exemplified to this point. 6 00:00:20,400 --> 00:00:22,160 So that's the job of this area. 7 00:00:22,200 --> 00:00:25,590 So inside and goldbrick is just typing here char sequence. 8 00:00:25,590 --> 00:00:29,910 So now I can actually say the name is going to be it after semicolon. 9 00:00:30,250 --> 00:00:35,280 Now let's go inside this uncreate and initialize these variables so the first one is spinner assignment 10 00:00:35,280 --> 00:00:36,030 operator. 11 00:00:36,090 --> 00:00:38,700 So let's cast this object to a spinner object. 12 00:00:38,880 --> 00:00:44,160 Find your way id or the ID that spinner right semicolon. 13 00:00:44,550 --> 00:00:49,530 So now let's initialize our adapter. 14 00:00:49,540 --> 00:00:57,490 Actually our idea that her so that her assignment operator and hero can say every adapter that create 15 00:00:57,490 --> 00:01:03,010 from the source and insert Apprentice's as you can see if you need to pass some arguments the first 16 00:01:03,010 --> 00:01:04,700 one is going to be the context. 17 00:01:04,720 --> 00:01:08,300 So the context is always for this class is main activity right. 18 00:01:08,320 --> 00:01:10,250 Because we are inside the main activity class. 19 00:01:10,450 --> 00:01:15,910 So main activity that this and now we need to specify the second argument which is going to be the add 20 00:01:16,060 --> 00:01:19,270 resource to be created and are staring at a. 21 00:01:19,270 --> 00:01:20,970 Inside this thing that is in my file. 22 00:01:21,100 --> 00:01:27,110 So here I can see our DOT at a dot sports name. 23 00:01:27,220 --> 00:01:32,730 So this is the same and this is actually the exact arayed that we created in it seems that is a fight 24 00:01:33,260 --> 00:01:33,750 that they. 25 00:01:33,850 --> 00:01:34,680 Put a comma here. 26 00:01:34,690 --> 00:01:37,830 Let's create a new line so that you can see this value here. 27 00:01:38,170 --> 00:01:42,790 And the first argument is going to be a simple spinner list item. 28 00:01:42,790 --> 00:01:52,440 So here you can see Android dot dot dot actually lay out that spinner. 29 00:01:52,630 --> 00:01:58,350 Look at this one android that are that layer that simple spinner id.. 30 00:01:58,460 --> 00:02:02,470 Choose this one and then put a semicolon at the end of your statement. 31 00:02:02,470 --> 00:02:04,490 So now we're initialising are great. 32 00:02:04,500 --> 00:02:09,850 So first we say that okay the context is main activity that this and that is said that the data is we 33 00:02:09,850 --> 00:02:10,780 get from this. 34 00:02:10,810 --> 00:02:13,050 All resources are added that the sports name. 35 00:02:13,240 --> 00:02:14,690 And what is this despina. 36 00:02:14,740 --> 00:02:19,880 This is the default spinner that we get from the Android Android that are that Liautaud simple spin 37 00:02:19,940 --> 00:02:20,460 like them. 38 00:02:20,560 --> 00:02:20,980 OK. 39 00:02:21,220 --> 00:02:30,180 So now we need to also specify a dropdown view resource so I can say adapter that sits drop down view 40 00:02:30,180 --> 00:02:30,850 resource. 41 00:02:30,860 --> 00:02:32,000 Choose this one. 42 00:02:32,280 --> 00:02:40,470 And now I can't say Android that are thought lay out that spinel just typing here spinner and the autocomplete 43 00:02:40,470 --> 00:02:46,580 feature is going to help you to choose this one simple spinner dropdown Eidem to this font. 44 00:02:46,890 --> 00:02:49,070 And now at the end of your statement put a semi-colon. 45 00:02:49,080 --> 00:02:54,700 So first we need to specify the symbol has been an item and it and then we need to specify the dropdown. 46 00:02:54,720 --> 00:02:56,150 And this is really important. 47 00:02:56,190 --> 00:03:05,690 So finally we can say spinner that sits at chapter spinnet the adapter adapter. 48 00:03:06,360 --> 00:03:06,720 OK. 49 00:03:06,810 --> 00:03:10,440 So visit the adapter of the spinner to that does it. 50 00:03:10,440 --> 00:03:12,510 After that you actually created here. 51 00:03:12,570 --> 00:03:16,150 So let's run our application now let's choose one of these devices. 52 00:03:16,170 --> 00:03:20,340 And let me show you the emulator. 53 00:03:20,430 --> 00:03:23,020 So now as you can see here our application is stunning. 54 00:03:23,250 --> 00:03:25,180 And it says Please select one sport. 55 00:03:25,200 --> 00:03:31,350 And if we actually click on this spinner if I click on this drop down here we can see that a list is 56 00:03:31,350 --> 00:03:31,930 shows up. 57 00:03:31,930 --> 00:03:34,740 It shows up here and we can select one of these sports. 58 00:03:34,740 --> 00:03:40,480 So for example I choose kickboxing and you can see this Kickboxing is selected or I can select one or 59 00:03:40,800 --> 00:03:42,100 two for example. 60 00:03:42,450 --> 00:03:45,430 And so what happens if we actually select one of them. 61 00:03:45,470 --> 00:03:51,470 You want to actually be notified when they use it actually selects one of these sports. 62 00:03:51,510 --> 00:03:55,550 So in that case I can actually create a select item list and are here. 63 00:03:55,560 --> 00:04:05,610 So here I can say spinner that select that sets select just set select So choose the one sit on item 64 00:04:05,610 --> 00:04:06,070 selected. 65 00:04:06,130 --> 00:04:07,290 Listen this is very important. 66 00:04:07,380 --> 00:04:13,710 And that person into your keyboard and instead Apprentice's just type in here new and just hold the 67 00:04:13,710 --> 00:04:14,650 shift key on your keyboard. 68 00:04:14,700 --> 00:04:17,320 And then just type in a. 69 00:04:17,640 --> 00:04:23,370 And now the autocomplete feature of Android studio is going to help you to choose this one an item selected 70 00:04:23,370 --> 00:04:23,850 listener. 71 00:04:23,850 --> 00:04:29,700 And in say the collaborators you can see dot dot dot to this one so that the Android studio is going 72 00:04:29,700 --> 00:04:35,940 to actually put the required codes they require if it's for you automatically. 73 00:04:35,940 --> 00:04:42,270 So here we have an anonymous in a class that actually conforms or implements this on item selected listener 74 00:04:42,270 --> 00:04:48,070 interface because that class is actually conforming or implementing this interface. 75 00:04:48,240 --> 00:04:52,850 That class must provide an implementation for these misfits that are inside of this on items like that 76 00:04:52,860 --> 00:04:53,590 interface. 77 00:04:53,610 --> 00:04:55,050 The first one is an item selected. 78 00:04:55,050 --> 00:05:01,020 So this Meffert is going to be called when they use it actually selects one of these sports for example 79 00:05:01,020 --> 00:05:02,650 boxing or bodybuilding. 80 00:05:02,880 --> 00:05:08,610 And if you have an addendum event when it actually is N-nothing selected So this is this it is called 81 00:05:08,610 --> 00:05:10,210 when nothing is selected. 82 00:05:10,230 --> 00:05:13,690 So we want to work with this method on items selected. 83 00:05:13,710 --> 00:05:17,550 So here I can create a toast message so toast that make text 84 00:05:20,700 --> 00:05:25,620 so inside the practice as the first argument I need to pass the context of main activity that this comma 85 00:05:26,040 --> 00:05:29,340 and the second argument is going to be the value that you want to show to the user. 86 00:05:29,520 --> 00:05:36,150 So you want to actually show to the user the actually the specific the specific sport that is actually 87 00:05:36,150 --> 00:05:37,110 selected. 88 00:05:37,110 --> 00:05:41,510 So this is actually you can see this item here this list here this is called the adapted view right. 89 00:05:41,520 --> 00:05:46,470 So we get this list as the after it beat you from this Meffert an item selected. 90 00:05:46,470 --> 00:05:51,970 So here I can say it after View got them at position. 91 00:05:52,210 --> 00:05:52,860 OK. 92 00:05:53,070 --> 00:05:56,210 I get them at position actually good item at position. 93 00:05:56,370 --> 00:06:00,510 So what is the position to position from this argument into. 94 00:06:00,570 --> 00:06:05,350 So the name is it's not meaningful enough to change this or to position. 95 00:06:05,940 --> 00:06:08,720 So you can see that we have this list right. 96 00:06:08,910 --> 00:06:11,630 So we can actually change this at least. 97 00:06:11,640 --> 00:06:13,830 Or we can change it to parent. 98 00:06:13,830 --> 00:06:15,220 So I can say this. 99 00:06:15,510 --> 00:06:18,130 So at least get them at position. 100 00:06:18,150 --> 00:06:22,560 So if you have this position here right position so it's going to give us the item at a specific position 101 00:06:22,560 --> 00:06:27,840 that is selected for example by the building and we can actually because we need to pass a single value 102 00:06:27,840 --> 00:06:32,700 to this method here as the second argument we need to convert it to a string value. 103 00:06:32,700 --> 00:06:36,690 So just put our Plus operator and then put two calls here come on. 104 00:06:36,960 --> 00:06:41,700 And as the first argument of need to specify the length of the message that they want to show to use 105 00:06:41,700 --> 00:06:42,830 that to such a statement here. 106 00:06:42,840 --> 00:06:44,380 In short. 107 00:06:44,630 --> 00:06:45,080 OK. 108 00:06:45,260 --> 00:06:50,130 Tostada then fourth and finally if you need to call the Schuurman for this object that be created here 109 00:06:50,470 --> 00:06:51,760 show that show. 110 00:06:52,110 --> 00:06:53,190 Let's run an application. 111 00:06:53,190 --> 00:06:55,090 Now let me show you the emulator. 112 00:06:56,360 --> 00:07:00,490 So now as you can see here are actually our application is running. 113 00:07:00,760 --> 00:07:07,820 And now you can you actually saw that football toss the message here because the football is now selected 114 00:07:07,910 --> 00:07:10,020 as the first and she devalue. 115 00:07:10,160 --> 00:07:16,410 Let's change this one to take one two and you can see it just take one two or I can change it to judo. 116 00:07:16,730 --> 00:07:18,210 And now it says two. 117 00:07:18,260 --> 00:07:21,510 So that's how spinner works in and right. 118 00:07:21,770 --> 00:07:26,240 So if you have any questions about spinner in Android please answer this question in the course and 119 00:07:26,240 --> 00:07:28,340 then I do my best to answer all of your questions. 120 00:07:28,340 --> 00:07:29,580 Thank you very much for watching. 121 00:07:29,690 --> 00:07:31,130 And I'm sitting next to Tauriel.