1 00:00:00,580 --> 00:00:06,060 Hire everyone in this tutorial I want to talk about actually getting the users location. 2 00:00:06,110 --> 00:00:11,100 We're going to build an application actually there is a lot like Uber. 3 00:00:11,350 --> 00:00:17,550 So here we are going to actually get the user's location using the GPS and Android permissions. 4 00:00:17,770 --> 00:00:22,270 So first let me tell you that let's actually click on configure and click on as the case manager. 5 00:00:22,660 --> 00:00:29,070 So here make sure that you have installed at least one of these eyes and reach seven point 1.1 no get 6 00:00:29,320 --> 00:00:34,250 Android 7.0 no get and and it's six point zero marshmallow. 7 00:00:34,280 --> 00:00:42,190 OK one of these is the case one of these AP It is necessary if you want to actually use it if you want 8 00:00:42,190 --> 00:00:44,410 to actually create this application. 9 00:00:44,410 --> 00:00:49,100 So here if you want to we can actually package details here. 10 00:00:49,270 --> 00:00:53,710 As you can see according to my operating system we can actually install one of these packages. 11 00:00:53,710 --> 00:00:54,070 OK. 12 00:00:54,310 --> 00:00:58,710 So if you just just choose one of these. 13 00:00:58,810 --> 00:01:06,220 Actually one of these API is is going to automatically download and install the required packages for 14 00:01:06,220 --> 00:01:07,970 your operating system. 15 00:01:07,990 --> 00:01:14,950 So let's get to the key Tools tab and here make sure that you have installed an updated Android SDK 16 00:01:14,950 --> 00:01:24,560 built tools Android emulator Android platform dash tools and SDK tools Android support library GPU the 17 00:01:24,910 --> 00:01:31,390 debugging tools and all these packages and also make sure that you have installed and updated support 18 00:01:31,390 --> 00:01:32,410 repository. 19 00:01:32,450 --> 00:01:33,570 OK. 20 00:01:34,070 --> 00:01:38,260 Especially Google repository and Android support repository. 21 00:01:38,260 --> 00:01:39,390 So that's it. 22 00:01:39,400 --> 00:01:46,990 Now let's click on OK let's create a new Android studio project and for the application name here just 23 00:01:46,990 --> 00:01:48,840 a plain G. 24 00:01:48,880 --> 00:01:51,440 P.S. location app 25 00:01:54,190 --> 00:01:56,560 so you can specify the company domain. 26 00:01:56,710 --> 00:02:01,130 You can specify the package name here and make sure that you have unchecked this checkbox because you 27 00:02:01,130 --> 00:02:04,710 are not going to use C++ in this application. 28 00:02:04,840 --> 00:02:11,740 And here you can specify the project locations to just click next and here a target API 16 as the minimum 29 00:02:11,800 --> 00:02:12,610 is the case. 30 00:02:12,820 --> 00:02:18,210 So it's as though API levels target more devices but have fewer features available. 31 00:02:18,670 --> 00:02:26,890 So here it is by targeting API 16 Lader your app will run on approximately ninety five point two percent 32 00:02:26,890 --> 00:02:30,120 of the devices that are active on the Google Play store. 33 00:02:30,190 --> 00:02:36,790 So he has to APX 16 and choose phone and tablet make sure that you have actually checked these checkbox 34 00:02:36,820 --> 00:02:43,430 and then click on next choose MT activity next and dont change anything. 35 00:02:43,540 --> 00:02:44,920 Just click on finish. 36 00:02:45,310 --> 00:02:50,980 So now that the project is actually created Let's go to the activity on the alignment of the exam and 37 00:02:50,980 --> 00:02:55,060 here let me actually does just double click on the step in order to make this area by there. 38 00:02:55,060 --> 00:02:57,890 So in this story you are going to use constraint. 39 00:02:57,940 --> 00:03:02,400 So here we can see that inside this componentry section it says constrained to leave out right. 40 00:03:02,440 --> 00:03:07,020 If I actually click on this text up here at the bottom you can see that we have this constraint out 41 00:03:07,090 --> 00:03:07,740 as the default. 42 00:03:07,840 --> 00:03:11,020 So if you dont have to constrain to leave out as the default. 43 00:03:11,170 --> 00:03:14,580 Make sure that you have actually make sure to change to constraints. 44 00:03:14,620 --> 00:03:18,040 Because you are going to use constraints here in this application. 45 00:03:18,040 --> 00:03:19,630 So lets go back to design. 46 00:03:20,170 --> 00:03:25,870 And here let me just select this hello world takes view and present you on your keyboard and hid inside 47 00:03:25,870 --> 00:03:27,870 this pallet section here. 48 00:03:27,940 --> 00:03:33,660 If I click on all you can see this takes you here just selected and to strike it and put it here. 49 00:03:34,550 --> 00:03:40,250 Center horizontal energy and see these guys here that are actually telling me that we can actually put 50 00:03:40,460 --> 00:03:43,630 position this takes you according to these guidelines. 51 00:03:43,670 --> 00:03:50,870 So lets just position it here just select its takes view and first let me tell you that look at these 52 00:03:50,900 --> 00:03:54,910 options here it says Sure constraints as you can see currently is hidden. 53 00:03:54,920 --> 00:04:01,140 If I click on it now now it's going to show us the constraints and he'll look at this option here this 54 00:04:01,530 --> 00:04:07,670 icon it says what it is turn up or to connect so that other kind of act is now turned on. 55 00:04:07,830 --> 00:04:08,070 OK. 56 00:04:08,070 --> 00:04:16,180 This means that the constraints is going to be automatically created for me according to how I position 57 00:04:16,220 --> 00:04:21,280 these components inside art actually lay out constraints. 58 00:04:21,540 --> 00:04:25,620 So I put this text here and it automatically created these constraints for me. 59 00:04:25,620 --> 00:04:32,880 Here you can see inside these properties section that it says that we have these margins here for example 60 00:04:32,880 --> 00:04:35,240 16 Margene from the top. 61 00:04:35,250 --> 00:04:38,490 And for now don't worry about these margins. 62 00:04:38,490 --> 00:04:44,260 So just select this text view and let's pro-white an ID for the state's view. 63 00:04:44,280 --> 00:04:52,760 So for the ID just type in here he the location and that person entered key on your keyboard. 64 00:04:52,760 --> 00:04:55,200 So now you can see is the size constraints. 65 00:04:55,220 --> 00:04:59,120 And if they actually hover over this size constraint it says Lappe content. 66 00:04:59,120 --> 00:05:03,620 So this means that the width of this text view is that up content. 67 00:05:03,620 --> 00:05:08,660 So that's what you can see that the margin left and the margin right is zero and the text is at the 68 00:05:08,660 --> 00:05:10,070 center. 69 00:05:10,070 --> 00:05:12,290 So let's click on this size constraint here. 70 00:05:12,530 --> 00:05:17,450 So it is now fixed and it's actually going to take and now we can see that it is actually match parent. 71 00:05:17,510 --> 00:05:17,690 Right. 72 00:05:17,690 --> 00:05:20,600 It is actually taking the match constraints right. 73 00:05:20,600 --> 00:05:23,350 If I click on here you can see that here. 74 00:05:23,390 --> 00:05:30,350 So now you can see that the margin lift and the margin right of this takes view here is actually zero. 75 00:05:30,350 --> 00:05:38,240 So it is actually attached to the right edge of this play out and it is actually also attached to the 76 00:05:38,240 --> 00:05:40,480 left edge of this play out here. 77 00:05:40,580 --> 00:05:41,210 Right. 78 00:05:41,210 --> 00:05:44,160 So let's actually change it back to the content. 79 00:05:44,210 --> 00:05:49,060 So now it's like it's actually changed back to rap content. 80 00:05:49,190 --> 00:05:54,890 But I want this takes you to be at the center here center horizontal so it's actually select it and 81 00:05:54,890 --> 00:05:57,260 put it here center horizontally. 82 00:05:57,650 --> 00:06:01,520 So now you can see that our view is actually centered horizontally. 83 00:06:01,520 --> 00:06:04,100 Now let's take this text view. 84 00:06:04,340 --> 00:06:06,280 And I want to change the text of this text view. 85 00:06:06,290 --> 00:06:18,580 So here just select is text attribute and just typing here or location latitudes and longitudes. 86 00:06:18,690 --> 00:06:24,600 So in order to access a specific location in Android we must have access to the latitude and longitude. 87 00:06:24,600 --> 00:06:30,810 These coordinates are very important because otherwise you not we can actually access the user's location 88 00:06:30,840 --> 00:06:32,300 or any other location. 89 00:06:32,370 --> 00:06:37,740 This latitude and longitude coordinates are going to actually give us the information that we need for 90 00:06:37,740 --> 00:06:39,740 a specific location on the air. 91 00:06:39,810 --> 00:06:44,960 So let's go and let's see how we can actually access these coordinates. 92 00:06:44,970 --> 00:06:47,140 Let's go to the main activity class. 93 00:06:47,460 --> 00:06:55,250 So now let's create a constant inside our R-Maine activity class or just open here public static find 94 00:06:55,400 --> 00:07:04,660 all stream streaming but it is a convention in Java to actually capitalize our constant names. 95 00:07:04,790 --> 00:07:10,820 So here I can just say tag that is actually you can see that these letters are actually capitalized 96 00:07:11,120 --> 00:07:17,210 and I put an assignment operator on here two coats and here I can assign the value cap tack to this 97 00:07:17,630 --> 00:07:20,000 constant just that you are rated. 98 00:07:20,000 --> 00:07:22,220 Use it later for now don't worry about it. 99 00:07:22,310 --> 00:07:25,780 Now we need to go to the build that that great file. 100 00:07:25,790 --> 00:07:28,600 Actually the applet will be that credit file. 101 00:07:28,820 --> 00:07:33,820 So at the top end you just click on View tool windows and then click on Project. 102 00:07:33,830 --> 00:07:37,860 Now open this app folder here you can see this cradle excretes right. 103 00:07:37,880 --> 00:07:38,440 Right. 104 00:07:38,450 --> 00:07:42,950 So make sure that you have inside your inside this and right view if you're not you just need to click 105 00:07:42,950 --> 00:07:43,560 on this. 106 00:07:43,970 --> 00:07:46,790 This button here you can see these two little triangles here. 107 00:07:46,790 --> 00:07:48,950 If you click on it just click on Android. 108 00:07:48,980 --> 00:07:53,960 So now open this cradle secrets and here you can see that you have two foils with the same name. 109 00:07:53,960 --> 00:07:56,170 The first one is built that cradle file. 110 00:07:56,200 --> 00:07:59,300 This is actually the project level great device. 111 00:07:59,480 --> 00:08:04,510 Now I want to go to the beat that great you'll find there is actually called module. 112 00:08:04,640 --> 00:08:06,240 The applet will be that great. 113 00:08:06,320 --> 00:08:08,580 So just double click on this wide open. 114 00:08:08,930 --> 00:08:15,730 So an elevator tab here up at the top in order to make this actually is elevator this wide. 115 00:08:15,980 --> 00:08:19,800 Now you can see this dependences block here at the bottom right. 116 00:08:19,850 --> 00:08:24,890 So let's go inside is dependences block and below it is this compiled line of code here. 117 00:08:25,100 --> 00:08:31,660 Now I'm going to actually just type in comp. So I'm going to paste a value here so you can see this 118 00:08:31,660 --> 00:08:32,870 value here right. 119 00:08:32,870 --> 00:08:35,840 Just put a pair of coats here. 120 00:08:35,900 --> 00:08:37,980 Make sure that it is actually a single code. 121 00:08:38,000 --> 00:08:38,970 It is not the table. 122 00:08:38,990 --> 00:08:42,190 It is actually a single coat and inside single quotes. 123 00:08:42,350 --> 00:08:52,610 You just need to put Come dot Google dot Android that GM is GM GM as Colin play dash Silvey says call 124 00:08:52,620 --> 00:09:01,920 in six point five point eighty seven and then you can see these and D-NJ actually code here right. 125 00:09:01,940 --> 00:09:04,610 So at the top you can see it's seen now. 126 00:09:04,730 --> 00:09:12,740 Right it says Gretl files have changed since last project sinch a project sinch may be necessary for 127 00:09:12,740 --> 00:09:18,930 the ID to work properly so we must see in our project now so just click on sinch now. 128 00:09:19,250 --> 00:09:25,860 So now that the project is actually seen successfully here make sure that you have no problems here. 129 00:09:26,030 --> 00:09:31,160 If you have any problems please post the discussion in the course because if you have any problems at 130 00:09:31,160 --> 00:09:36,700 this point you're going to have problems actually continuing this tutorial. 131 00:09:36,860 --> 00:09:41,000 So make sure that you have actually installed the Google repository package. 132 00:09:41,000 --> 00:09:45,650 Let me show you that package here at the top and you just get to an android studio and click on preferences. 133 00:09:45,950 --> 00:09:49,810 And here you can see just open this system settings. 134 00:09:49,840 --> 00:09:50,870 Android is the key. 135 00:09:50,990 --> 00:09:56,440 If I go to the SDK tools make sure that you have installed the supports repository here Android support 136 00:09:56,450 --> 00:09:57,940 repository Google repository. 137 00:09:57,950 --> 00:10:00,200 These are the required packages. 138 00:10:00,220 --> 00:10:03,060 OK so let me actually just kind of OK. 139 00:10:03,190 --> 00:10:04,650 Now everything is fine right. 140 00:10:04,670 --> 00:10:09,220 Let's go to the main activity class and I want to do something here.