1 00:00:00,450 --> 00:00:09,260 So here this class main activity must conform or implement the unkind action callback. 2 00:00:09,270 --> 00:00:13,950 Actually the interface so here main activity extends app comp. activity. 3 00:00:13,950 --> 00:00:20,860 Now after this app compactus they can here implements Google API client. 4 00:00:20,950 --> 00:00:22,040 OK so this is really important. 5 00:00:22,050 --> 00:00:24,710 If you can't access this will it be a client. 6 00:00:24,720 --> 00:00:29,240 That means that inside the bill create a file the applet will get built with that file. 7 00:00:29,340 --> 00:00:32,760 You did not actually put this line of code here inside these dependencies plug. 8 00:00:32,820 --> 00:00:33,220 OK. 9 00:00:33,390 --> 00:00:35,000 So let's go to the main of the class. 10 00:00:35,070 --> 00:00:41,650 So Google API client dot Google API client dots connection callbacks. 11 00:00:41,760 --> 00:00:45,470 OK collection callbacks so we must conform to this interface. 12 00:00:45,540 --> 00:00:49,650 Just press on until your keyboard and they put a comma here. 13 00:00:49,780 --> 00:00:58,530 So you need to I need to also conform to another interface and that interface is Google API client that's 14 00:00:59,220 --> 00:01:02,360 actually on connection failed listener. 15 00:01:02,550 --> 00:01:03,010 OK. 16 00:01:03,060 --> 00:01:06,390 We must actually conform to these interfaces. 17 00:01:06,390 --> 00:01:08,700 We must actually implement these interfaces. 18 00:01:08,700 --> 00:01:15,100 Google API client connection codecs and Google API client that and connection failed listeners. 19 00:01:15,600 --> 00:01:21,630 So now that we actually conformed to these interfaces now that we implemented these interfaces we must 20 00:01:22,050 --> 00:01:26,710 actually implement them Misfit's that are inside of these interfaces. 21 00:01:26,730 --> 00:01:32,250 So if we actually hold down to the common key on my keyboard so if you are using a Windows machine you 22 00:01:32,250 --> 00:01:37,920 can actually hold down the control key on your keyboard and just click on this connection callbacks 23 00:01:37,920 --> 00:01:38,510 here. 24 00:01:38,670 --> 00:01:42,360 As you can see it guided me to this Google API client class. 25 00:01:42,450 --> 00:01:44,330 You can see that we have this interface here. 26 00:01:44,340 --> 00:01:50,580 Inside is a class you can see that it says public interface connection callbacks. 27 00:01:50,640 --> 00:01:51,370 Right. 28 00:01:51,420 --> 00:01:58,200 So we have these two integer values and cause service disconnected int cause network lost and we have 29 00:01:58,200 --> 00:02:02,770 the Smurfit unconnected on connection suspended right. 30 00:02:02,790 --> 00:02:07,590 This means that we must implement these two methods inside our main activity class because we actually 31 00:02:07,590 --> 00:02:11,250 implemented this interface this unconscious callbacks interface. 32 00:02:11,250 --> 00:02:11,770 Right. 33 00:02:11,850 --> 00:02:19,200 So this unconvicted if it is going to be called whenever that we actually can connect to that location 34 00:02:19,200 --> 00:02:23,070 services in order to get the user's location or any others any other location. 35 00:02:23,070 --> 00:02:23,600 Right. 36 00:02:23,880 --> 00:02:25,770 And we have these connections suspended. 37 00:02:25,780 --> 00:02:31,680 So this is going to be called whenever something happens when ever a problem is actually occurred and 38 00:02:31,680 --> 00:02:34,480 we cannot currently access the location. 39 00:02:34,530 --> 00:02:36,300 So it is going to be suspended. 40 00:02:36,600 --> 00:02:39,700 So let's go back to the main activity class here. 41 00:02:39,750 --> 00:02:41,740 First let's just implement these benefits. 42 00:02:41,760 --> 00:02:47,040 The first one was on the connection on an unconnected. 43 00:02:47,040 --> 00:02:47,250 OK. 44 00:02:47,280 --> 00:02:53,160 This is the first phase which is actually needed is met with again just like in here on connected and 45 00:02:53,160 --> 00:02:58,280 here you can see that the autocomplete feature of Android studio is helping me to use this method. 46 00:02:58,280 --> 00:03:00,560 I didn't just put that interview on your keyboard. 47 00:03:00,960 --> 00:03:06,520 So now you have this method the second method is what is let me actually just click on this class. 48 00:03:06,510 --> 00:03:08,260 You just tap it in order to see the second. 49 00:03:08,280 --> 00:03:10,480 This is the second method on connection suspended. 50 00:03:10,620 --> 00:03:16,110 So let's go to the main activity class and just type in here on connection suspended. 51 00:03:16,380 --> 00:03:16,820 Right. 52 00:03:16,830 --> 00:03:21,840 So again I actually implemented these two misfits here right inside the main activity class. 53 00:03:21,840 --> 00:03:28,020 So again we have errors and this error is actually guarding to these on connections fatally center. 54 00:03:28,140 --> 00:03:31,960 So let's go to these tartlets click on the top here again. 55 00:03:32,310 --> 00:03:35,530 And now you can see these on connection fed listener. 56 00:03:35,640 --> 00:03:38,380 And in this listener we have this method of connection. 57 00:03:38,400 --> 00:03:44,910 So this means this is going to be called whenever that the connection to actually to the location is 58 00:03:44,910 --> 00:03:45,610 actually fake. 59 00:03:45,630 --> 00:03:47,980 This means that we cannot access the location. 60 00:03:48,000 --> 00:03:49,230 So this is going to be called. 61 00:03:49,260 --> 00:03:50,580 So let's actually click on it. 62 00:03:50,580 --> 00:03:56,460 This could go to the main activity class and let's implement this in effect on a connection faith on 63 00:03:56,460 --> 00:03:57,740 connection for it. 64 00:03:57,870 --> 00:03:59,470 So we also implemented this move. 65 00:03:59,490 --> 00:04:01,760 And now you can see that we have no errors right. 66 00:04:01,770 --> 00:04:04,100 Everything is fine and we have no errors yet. 67 00:04:04,110 --> 00:04:04,690 Right. 68 00:04:04,740 --> 00:04:09,580 Because we implemented these require if it's inside our main activity class. 69 00:04:09,780 --> 00:04:10,800 So that's it. 70 00:04:10,800 --> 00:04:14,370 So now it's time to create another constant. 71 00:04:14,460 --> 00:04:16,080 This is called request court. 72 00:04:16,140 --> 00:04:16,650 OK. 73 00:04:16,800 --> 00:04:20,640 So inside this class and below this line of code we do with this constant attack. 74 00:04:20,640 --> 00:04:22,100 Let's create another constant. 75 00:04:22,110 --> 00:04:27,360 But this time it is going to be private because only the main activity class needs to know about this 76 00:04:27,360 --> 00:04:28,000 constant. 77 00:04:28,080 --> 00:04:30,050 So private static. 78 00:04:30,190 --> 00:04:30,510 OK. 79 00:04:30,510 --> 00:04:35,700 Final This is a concentrate it and the name is going to be chapiter lies. 80 00:04:35,730 --> 00:04:36,800 Ok this is a convention. 81 00:04:36,810 --> 00:04:41,330 It is not necessary to be tied capitalized but it is a convention in Java. 82 00:04:41,550 --> 00:04:49,500 So here's a step in here a request quote requests underlined quote and assign the value of 1000 to this 83 00:04:49,500 --> 00:04:50,400 constant. 84 00:04:50,410 --> 00:04:52,740 OK so that's it. 85 00:04:52,740 --> 00:04:55,890 Now let's create some variables. 86 00:04:55,890 --> 00:05:00,690 Let's declare somebody else here in say that main activity class and then later we're going to initialize 87 00:05:00,690 --> 00:05:01,260 them. 88 00:05:01,260 --> 00:05:07,540 So the first variable is going to be actually private and it is going to be off the Google API client. 89 00:05:07,720 --> 00:05:08,220 OK. 90 00:05:08,340 --> 00:05:10,770 And the name is going to be just Google Play client semi-colon. 91 00:05:10,770 --> 00:05:15,240 So here just declared a disparity of type Google API client. 92 00:05:15,240 --> 00:05:20,770 Now it's time to actually declare the second valuable so just open private. 93 00:05:20,770 --> 00:05:26,140 Again this is actually a private variable and it is going to be off site location and that location 94 00:05:26,170 --> 00:05:31,930 like this class actually holds those coordinates that they actually talk to you about the latitude and 95 00:05:31,930 --> 00:05:32,480 longitude. 96 00:05:32,500 --> 00:05:33,140 OK. 97 00:05:33,220 --> 00:05:33,910 So it is it. 98 00:05:33,970 --> 00:05:36,010 Let me ask you to just hold the under control chair. 99 00:05:36,040 --> 00:05:41,170 And if I click on location you can see that this class is the location and you can see that we have 100 00:05:41,170 --> 00:05:42,370 the form at degrees. 101 00:05:42,370 --> 00:05:49,120 So all these constants here let me just close this fight here let me also close the school API land 102 00:05:49,120 --> 00:05:53,680 class and here just for the name. 103 00:05:53,680 --> 00:05:56,030 Just type in his location semicolon. 104 00:05:56,110 --> 00:06:02,020 Now let's declare another variable of type takes view and this is going to be the location. 105 00:06:02,020 --> 00:06:07,270 So this is the variable that is going to hold the takes you object that we have inside our view right 106 00:06:07,790 --> 00:06:08,190 now. 107 00:06:08,190 --> 00:06:09,850 Let's go to the uncreate method. 108 00:06:09,850 --> 00:06:13,100 First of all let's initialize RTX the location value. 109 00:06:13,120 --> 00:06:18,700 So just typing here takes the location assignment operator and put a pair of practices in order to cast 110 00:06:18,730 --> 00:06:27,800 this object to a text view object find view by ID or that ID that T X the location semi-colon. 111 00:06:28,180 --> 00:06:33,190 So now it's time to initialize our Google API client actually instance. 112 00:06:33,430 --> 00:06:37,750 So just typing here Google API client assignment operator. 113 00:06:37,900 --> 00:06:40,050 So here I'm going to initialize this value right. 114 00:06:40,060 --> 00:06:42,330 So now I'm going to create the actual object. 115 00:06:42,340 --> 00:06:48,430 The actual instance of the Google API client and here I want to actually register this main activity 116 00:06:48,430 --> 00:06:56,020 class in order to be able to receive the connection messages the faked messages that the Google API 117 00:06:56,050 --> 00:06:58,070 client actually sense. 118 00:06:58,090 --> 00:07:05,860 So let's just open a new Google API client so as you can see it's going to actually just prompt you 119 00:07:05,860 --> 00:07:06,900 to choose this option. 120 00:07:06,910 --> 00:07:09,340 Don't choose this option just typing as I do here. 121 00:07:09,340 --> 00:07:12,690 Google API client. 122 00:07:13,270 --> 00:07:21,310 So here you can see that we have Google API client dot builder and inside Apprentice's because this 123 00:07:21,310 --> 00:07:27,350 classmate activity is going to be registered as a class to receive the messages that the Google IPO 124 00:07:27,420 --> 00:07:29,430 claimed actually sent. 125 00:07:29,440 --> 00:07:33,830 So we are going to pass the main activity that this as the context. 126 00:07:33,880 --> 00:07:40,670 OK so now I'm going to actually call some efforts here to just put a new line here just at present and 127 00:07:40,670 --> 00:07:47,070 tell Junior if you would in order to create any light and just I mean he had that at connection callbacks. 128 00:07:47,290 --> 00:07:51,450 So because again I'm going to register this activity as the listener. 129 00:07:51,670 --> 00:07:53,200 So I'm going to pass the context. 130 00:07:53,200 --> 00:07:55,610 Main activity that this OK. 131 00:07:55,720 --> 00:08:02,770 Again put us another new line here as you can see we are calling some misfits here just one after the 132 00:08:02,770 --> 00:08:03,170 other. 133 00:08:03,250 --> 00:08:03,770 OK. 134 00:08:03,880 --> 00:08:08,890 So it is necessary because first we are going to actually get the quality Google pick a client instance 135 00:08:08,980 --> 00:08:14,500 and we we can actually call this if it's on that instance first we are calling this ad connection callbacks 136 00:08:14,860 --> 00:08:19,620 and that we are going to say that ad actually connection fatally center. 137 00:08:19,750 --> 00:08:25,120 So again this class is going to be the class that is going to actually receive the fatalists and their 138 00:08:25,120 --> 00:08:25,880 messages. 139 00:08:25,900 --> 00:08:26,530 Right. 140 00:08:26,620 --> 00:08:30,490 So if the connection is break this glass is going to receive that message some inactivity that this 141 00:08:31,180 --> 00:08:33,980 light and then put another new light here. 142 00:08:34,210 --> 00:08:40,170 And a final method that we are going to call on these Google API client and then so as you can see here 143 00:08:40,200 --> 00:08:45,400 you are creating that instance and we are calling this misfit on that instance and we are calling this 144 00:08:45,400 --> 00:08:46,510 move it on that instance. 145 00:08:46,510 --> 00:08:46,980 Right. 146 00:08:47,050 --> 00:08:52,780 Let's create the final It's actually called the final Meffert on that call API in instance. 147 00:08:52,810 --> 00:09:01,120 So just they can hear that at API at API as you can see we call this move so inside the prentices we 148 00:09:01,120 --> 00:09:02,740 need to pass some arguments. 149 00:09:02,740 --> 00:09:10,420 So inside the practices of this ad API if just type in your location services that API. 150 00:09:10,860 --> 00:09:14,540 Ok so its going actually to give us the location services that API. 151 00:09:14,560 --> 00:09:18,000 And then we can say that bit semi-colon. 152 00:09:18,430 --> 00:09:18,840 Right. 153 00:09:18,850 --> 00:09:24,370 Make sure to actually call the bill here on this location services that API here and now is going to 154 00:09:24,370 --> 00:09:25,950 build that. 155 00:09:26,050 --> 00:09:32,500 Actually the location services API and then we are going to be able to get the messages the location 156 00:09:32,500 --> 00:09:33,100 right. 157 00:09:33,280 --> 00:09:33,840 So thats it.