1 00:00:00,930 --> 00:00:02,870 Hello this is mortiser court date. 2 00:00:02,970 --> 00:00:08,070 And in this video we are going to just create the calculator project. 3 00:00:08,370 --> 00:00:16,410 But before that I want to show you I want to actually show you these texts here inside this and ridable 4 00:00:16,410 --> 00:00:18,080 of her Web site that says. 5 00:00:18,240 --> 00:00:24,600 And it provides support for multiple screen sizes and densities reflecting the many different screen 6 00:00:24,600 --> 00:00:27,250 configurations that a device may have. 7 00:00:27,420 --> 00:00:33,780 You can use features of the and root system to optimize your applications user interface for each screen 8 00:00:33,780 --> 00:00:40,590 configuration and ensure that your application not only that renders perfectly properly but provides 9 00:00:40,650 --> 00:00:43,250 the best user experience possible. 10 00:00:43,300 --> 00:00:49,520 But each screen to simplify the debate that you design your use of interfaces for multiple screens. 11 00:00:49,640 --> 00:00:58,020 Android bytes the Rangers are the range of actual screen sizes and densities into our set up for generalized 12 00:00:58,020 --> 00:01:08,670 sizes small Northwold large and x large note beginning with Android 3.2 API level 15 these size groups 13 00:01:08,760 --> 00:01:15,660 are deprecated in favor of a new technique for managing screen size is based on the available screen 14 00:01:15,680 --> 00:01:24,210 which if you are developing for and with free point 3.2 and greater I see declaring tablet layouts for 15 00:01:24,210 --> 00:01:26,720 Android freephone to for more information. 16 00:01:26,880 --> 00:01:30,720 So here it says a set of six generalized densities. 17 00:01:30,810 --> 00:01:33,770 We have this ATP low. 18 00:01:34,080 --> 00:01:37,240 One hundred and twenty DPMI. 19 00:01:37,530 --> 00:01:42,330 So it is DPR it stands for dots here in inch. 20 00:01:42,390 --> 00:01:51,720 So we have 120 dots per inch for low low quality low cost low dots per inch. 21 00:01:51,840 --> 00:02:03,140 And we have this one in DPMI medium dots per inch 160 DPMI and we have this one HTP high. 22 00:02:03,510 --> 00:02:06,790 Two hundred and forty dots per inch. 23 00:02:07,230 --> 00:02:18,230 So I know that the Android devices that may actually have these vans LDP or GPI screens those Android 24 00:02:18,230 --> 00:02:24,490 devices are now actually deprecated or they don't actually exist anymore. 25 00:02:24,830 --> 00:02:35,830 Now we have HTP we have X HTP y we have x x STPI And we also have x x x STPI for tablets. 26 00:02:36,470 --> 00:02:40,230 But you're going to target Android more wise. 27 00:02:40,250 --> 00:02:49,340 So if we agree to say that we have HTP 240 dots per inch we have X HTP X through a high 310 to any dots 28 00:02:49,340 --> 00:02:50,040 per inch. 29 00:02:50,330 --> 00:02:56,210 And we have x x STPI X extra a high. 30 00:02:56,640 --> 00:03:01,540 And here we have four four hundred and eighty that's pretty much. 31 00:03:01,630 --> 00:03:09,640 So that's why we created free or separated folders in order to store our images inside those folders 32 00:03:09,940 --> 00:03:15,330 for different screen densities for different actually qualities. 33 00:03:16,290 --> 00:03:18,650 So hopefully you have actually read this article. 34 00:03:18,690 --> 00:03:22,600 Now we are ready to create our calculator app. 35 00:03:22,680 --> 00:03:25,550 So let me open the anthrax to the let me close this. 36 00:03:27,020 --> 00:03:27,420 Page. 37 00:03:27,410 --> 00:03:30,220 Now let's open the answer is you. 38 00:03:30,470 --> 00:03:38,930 And here are let me point out that you should always update your STK packages up to date. 39 00:03:38,960 --> 00:03:43,520 So if you don't know how to do that you just need to open the entry to suit your click and configure 40 00:03:43,940 --> 00:03:45,920 and then click on STK manager. 41 00:03:46,100 --> 00:03:52,940 Here you can see that we have STK platforms SDK tools and the update sites. 42 00:03:52,940 --> 00:03:58,600 So we are going to work with these two apps as platforms and STK tools. 43 00:03:58,820 --> 00:04:04,190 So here it is not nothing to show but if here at the bottom it says looking for updates. 44 00:04:04,220 --> 00:04:06,400 So we need to wait a little bit here. 45 00:04:07,950 --> 00:04:14,700 And now we can see how these packages these API is we are going to actually target the Android 8 point 46 00:04:14,700 --> 00:04:18,480 zero audio API 26. 47 00:04:18,480 --> 00:04:23,330 So if they click on this one is a checkbox that says show package details. 48 00:04:23,460 --> 00:04:25,490 You can see the package details here. 49 00:04:25,740 --> 00:04:33,080 So you can see that I actually downloaded the Android as a platform to access sources for Android 26. 50 00:04:33,480 --> 00:04:35,550 And we don't need the TV. 51 00:04:35,790 --> 00:04:39,090 And here we have the android with Intel. 52 00:04:39,090 --> 00:04:43,710 So if you want to test your app on the Android devices you can actually be done with this package but 53 00:04:43,710 --> 00:04:51,300 you don't have to do that and here we have the Google API is Intel 86 atom system image. 54 00:04:51,310 --> 00:04:59,830 So here if you want to if you have an internship you and you want to run your app on the Android emulator 55 00:05:00,040 --> 00:05:06,030 you need to download these packages he had these two packages here that is API is Intel. 56 00:05:06,400 --> 00:05:09,450 And here we have Google Play Intel 86. 57 00:05:09,540 --> 00:05:16,300 Adams is the image so we don't have to actually download this one but make sure to download it so that 58 00:05:16,300 --> 00:05:20,420 later you're not going to actually encounter any more problems. 59 00:05:20,770 --> 00:05:27,700 So just download these packages here so that later when you want to actually do more complicated things 60 00:05:27,700 --> 00:05:31,720 with the android emulator you're not going to actually encounter any problems. 61 00:05:32,020 --> 00:05:32,840 And that's it. 62 00:05:32,980 --> 00:05:39,500 So if you want to actually just switch to the SDK tools just click on it here. 63 00:05:40,900 --> 00:05:46,930 And you can see that we have these packages Android SDK tools. 64 00:05:47,020 --> 00:05:51,670 Make sure to download and realistically build tools and if you want it you can click on Show package 65 00:05:51,670 --> 00:05:58,820 details and here you can see the Android package details and with the staple tools details. 66 00:05:59,340 --> 00:06:04,990 And here we have this one and there is great tools and great support library. 67 00:06:04,990 --> 00:06:07,250 Make sure to download these packages here. 68 00:06:07,750 --> 00:06:14,540 The public debugging tools and all of these packages that they actually checked are checkboxes here. 69 00:06:14,740 --> 00:06:18,400 Make sure to also download or update the support repository. 70 00:06:18,400 --> 00:06:21,030 This is very important here. 71 00:06:21,070 --> 00:06:21,660 That's it. 72 00:06:21,850 --> 00:06:26,320 And after that you have actually decided which packages you want to download or update. 73 00:06:26,350 --> 00:06:27,930 You just need to click on apply. 74 00:06:28,120 --> 00:06:35,750 Ok so I'm going to click on the canso And here let's start in your Android studio project. 75 00:06:35,790 --> 00:06:41,790 So the application name is going to be my calculator my child. 76 00:06:41,800 --> 00:06:47,550 Q Later on you can specify the company domain project location and the package name. 77 00:06:47,550 --> 00:06:52,250 Make sure that you don't check these checkboxes here for the C++ or coastline. 78 00:06:52,270 --> 00:06:57,210 Just click on next and here for the. 79 00:06:57,260 --> 00:07:01,020 Are going to specify the minimum SDK for our application. 80 00:07:01,020 --> 00:07:04,380 So I use the API to any free Android 6 are my marshmallow. 81 00:07:04,530 --> 00:07:07,410 But let's change it to Android. 82 00:07:07,410 --> 00:07:09,620 Five point one. 83 00:07:09,620 --> 00:07:10,540 Lollipop. 84 00:07:11,700 --> 00:07:15,670 And then you can see that it is actually the target. 85 00:07:15,720 --> 00:07:22,260 If I say that the minimum is the key of my app is Android lollipop it is by targeting API to and leader 86 00:07:22,530 --> 00:07:28,050 your app will run on approximately 62 percent of the devices so it's good. 87 00:07:28,350 --> 00:07:33,990 Let's click on next let's choose empty activity next. 88 00:07:34,470 --> 00:07:40,280 And yet the activity name is main activity and the last name is activity on the line main. 89 00:07:40,530 --> 00:07:43,130 So you don't have to change these values here. 90 00:07:43,380 --> 00:07:49,540 But if you want to you can do that you can see that the activity name is going to be calculator can 91 00:07:50,200 --> 00:07:51,700 queue later. 92 00:07:51,720 --> 00:07:56,030 I can't see why I should change the activity name here. 93 00:07:56,100 --> 00:08:02,760 The layout name is also changed to activity on the line calculator because the layout name should be 94 00:08:02,910 --> 00:08:04,130 lowercase. 95 00:08:04,170 --> 00:08:08,470 All of these letters should be largest and it has activity on the line calculator. 96 00:08:08,700 --> 00:08:11,430 So now I can click on finish. 97 00:08:11,670 --> 00:08:16,620 So as you can see here the project is created and I think that's enough for the situation in the next 98 00:08:16,620 --> 00:08:17,600 tutorial. 99 00:08:17,920 --> 00:08:21,990 If you're going to design the layout of the application. 100 00:08:21,990 --> 00:08:27,800 So thank you very much for watching and I will look forward to seeing you in the next story.