1 00:00:00,660 --> 00:00:06,450 And another important point that I want to talk about here is that look at this class here look at the 2 00:00:06,450 --> 00:00:07,650 name of this class. 3 00:00:07,710 --> 00:00:10,110 This class is actually created by ourselves right. 4 00:00:10,140 --> 00:00:12,410 The name of this class is net 14:4. 5 00:00:12,690 --> 00:00:19,050 And in fact we have another class in Android that nets package with this same name network info. 6 00:00:19,230 --> 00:00:25,820 So as you can see here in length 17 I am actually using that class that is actually inside the android 7 00:00:25,830 --> 00:00:27,130 that nets package. 8 00:00:27,390 --> 00:00:33,690 So at the Android studio as you can see here is going to actually differentiate between these two classes. 9 00:00:33,720 --> 00:00:38,770 This is our own class and this is actually class that is inside of the Android that net package. 10 00:00:38,790 --> 00:00:45,840 So that's why the Android studio put this android dot net here in order to differentiate between these 11 00:00:45,840 --> 00:00:46,640 two classes. 12 00:00:46,740 --> 00:00:47,230 OK. 13 00:00:47,370 --> 00:00:54,270 So in line 17 are you want to use the network in for class that is actually inside the Android database 14 00:00:54,310 --> 00:00:55,310 package. 15 00:00:55,590 --> 00:01:00,470 And here as you can see we have this network in for this class is actually created by ourselves. 16 00:01:00,480 --> 00:01:01,190 OK. 17 00:01:01,560 --> 00:01:07,260 And hopefully we can understand what's going on here and here I just wanted to show you that it is actually 18 00:01:07,590 --> 00:01:11,350 referring to a class inside the android that nets package. 19 00:01:11,490 --> 00:01:17,320 And because this class the class that actually that is created by ourselves and this who has that is 20 00:01:17,320 --> 00:01:22,470 inside of this inside of the Android that package is the same name they have the same name here as you 21 00:01:22,470 --> 00:01:29,190 can see the Android studio put this android in package in order to differentiate between these two classes. 22 00:01:29,220 --> 00:01:32,280 This is actually the class that is inside of you and that net package. 23 00:01:32,430 --> 00:01:35,510 And this is the class that is created by me. 24 00:01:35,520 --> 00:01:36,150 OK. 25 00:01:36,690 --> 00:01:39,100 So hopefully that makes sense. 26 00:01:39,390 --> 00:01:46,850 And here I created an if statement as you can see here if network info is not equal to null. 27 00:01:46,970 --> 00:01:47,860 OK. 28 00:01:48,240 --> 00:01:50,350 If this value is not equal to a null. 29 00:01:50,550 --> 00:01:51,000 OK. 30 00:01:51,060 --> 00:01:55,110 Now again I actually created a switch statement. 31 00:01:55,110 --> 00:01:57,950 So through each network info that get type. 32 00:01:58,020 --> 00:02:04,290 So now I can actually switch between the types of these network info object as you can see here case. 33 00:02:04,290 --> 00:02:07,190 So if the connectivity manager type voice fine. 34 00:02:07,200 --> 00:02:12,590 So if the device is actually connected to the Internet revivify return number one. 35 00:02:12,600 --> 00:02:16,530 So now let's actually hold the Komansky. 36 00:02:16,530 --> 00:02:22,130 So if you are using end of Windows machine hold the control key and then click on this get type here. 37 00:02:22,220 --> 00:02:24,310 Network in for that type. 38 00:02:24,660 --> 00:02:29,710 And as you can see here the Smurfette here that is inside of this network info the Java file. 39 00:02:30,000 --> 00:02:32,290 As you can see this method this is DMF it right. 40 00:02:32,400 --> 00:02:36,360 And this Linforth returns an integer value as you can see here. 41 00:02:36,360 --> 00:02:36,950 OK. 42 00:02:37,230 --> 00:02:40,700 So let's go back to our network in for the double file here. 43 00:02:40,710 --> 00:02:46,560 So because this it returns an integer value here you're actually switching between the values of this 44 00:02:46,560 --> 00:02:47,980 Meffert get type. 45 00:02:48,030 --> 00:02:48,500 OK. 46 00:02:48,720 --> 00:02:51,810 So if the connectivity manager that type will be fine. 47 00:02:51,930 --> 00:02:54,070 So again let's hold the Command key. 48 00:02:54,240 --> 00:03:00,100 And if you are using a Windows machine hold the control key and then click on this type Wi-Fi here. 49 00:03:00,360 --> 00:03:05,280 And as you can see here now I mean to say this our connectivity manager that drove a fight and here 50 00:03:05,310 --> 00:03:11,560 I have this constant And as you can see type of lifeI here holds the value number one. 51 00:03:12,000 --> 00:03:17,270 And here as you can see in line three hundred and thirty two these type Moabite as you can see Haught 52 00:03:17,580 --> 00:03:19,770 as you can see here holds the values zero. 53 00:03:20,040 --> 00:03:20,740 OK. 54 00:03:21,030 --> 00:03:28,860 And as you can see here we have other constants type mobile EMIs and type more by S U P L type more 55 00:03:28,860 --> 00:03:33,390 by the UN and other constants here that you can use in your project. 56 00:03:33,390 --> 00:03:39,630 So here here I am saying that if the connectivity manager the type verify then return number one. 57 00:03:40,070 --> 00:03:40,920 OK. 58 00:03:41,280 --> 00:03:44,650 And case connectivity manager that tape more bite. 59 00:03:44,670 --> 00:03:49,910 So if the device is actually connected to the Internet from Mobile they'll return number two. 60 00:03:50,160 --> 00:03:50,700 OK. 61 00:03:50,700 --> 00:03:53,130 All I can say that the return number is zero. 62 00:03:53,130 --> 00:03:57,900 So as you can see here if I hold the comment chip and then click on this type mobile here this type 63 00:03:57,900 --> 00:04:00,500 mobile actually holds this value number zero. 64 00:04:00,720 --> 00:04:01,260 OK. 65 00:04:01,260 --> 00:04:06,090 So I can actually return the value zero OK or default. 66 00:04:06,090 --> 00:04:11,340 And this means that the device is actually connected to the Internet through other technologies. 67 00:04:11,340 --> 00:04:13,830 So here I just returned number three. 68 00:04:13,860 --> 00:04:14,150 OK. 69 00:04:14,160 --> 00:04:20,740 I'm not going to actually create some case statements for that for those kinds of technologies but but 70 00:04:20,880 --> 00:04:25,330 here are creating two case statements for a wife and mobile. 71 00:04:25,410 --> 00:04:26,310 OK. 72 00:04:26,790 --> 00:04:31,970 And here as you can see I have this Else statement that is actually related to this. 73 00:04:32,160 --> 00:04:39,060 If the to this statement and this means that if network info is equal to null and this means that we 74 00:04:39,060 --> 00:04:44,350 are not actually connected to the Internet at all then it's going to return to zero. 75 00:04:44,430 --> 00:04:50,720 So here I can say that return for example number one thousand and this means that the device is actually 76 00:04:51,090 --> 00:04:53,770 not actually connected to the Internet at all. 77 00:04:53,880 --> 00:04:54,370 OK. 78 00:04:54,450 --> 00:05:00,690 So this is how you actually specify that whether your device is actually connected to the Internet or 79 00:05:00,690 --> 00:05:01,210 not. 80 00:05:01,320 --> 00:05:03,310 And what is going to be the type of the Internet. 81 00:05:03,350 --> 00:05:05,840 OK Wi-Fi or type more bite. 82 00:05:05,880 --> 00:05:06,590 So let's go inside. 83 00:05:06,630 --> 00:05:11,830 Our main activity that you will find here unless I try to use this class is network class the Java file. 84 00:05:11,880 --> 00:05:13,650 So now inside is unclear. 85 00:05:13,680 --> 00:05:18,900 Meffert that is inside of these main activity class that's actually going to actually be pasting some 86 00:05:18,900 --> 00:05:23,410 lines of code here and then I'm going to explain to you what's going on here. 87 00:05:23,520 --> 00:05:28,640 So as you can see here these are the lines of code that I actually pasted here. 88 00:05:28,650 --> 00:05:32,270 OK so now I'm going to explain to you what's going on here. 89 00:05:32,490 --> 00:05:41,160 So in line 45 as you can see I actually created a body of type integer right and the name of this variable 90 00:05:41,160 --> 00:05:44,920 is status infl assignment operator. 91 00:05:45,030 --> 00:05:45,830 As you can see here. 92 00:05:45,930 --> 00:05:52,490 So here I called this a class network in Forth I've referred to the name of this class networth info 93 00:05:52,920 --> 00:05:55,970 that gets network status. 94 00:05:55,980 --> 00:06:01,900 So here I am actually calling this static method that is inside of this network info class. 95 00:06:01,930 --> 00:06:07,050 So let's ask you to go inside this networking for the terrified and as you can see here inside this 96 00:06:07,050 --> 00:06:13,010 class that's network info I have the Smurfette which is actually static gets network status and this 97 00:06:13,010 --> 00:06:16,020 method returns a value of that integer. 98 00:06:16,060 --> 00:06:19,040 OK so that's why insight is sweetest statement. 99 00:06:19,050 --> 00:06:24,790 I am actually returning these values if the device is actually connected to the Internet for Wi-Fi then 100 00:06:24,820 --> 00:06:28,290 it does me if it is going to return the value number one then. 101 00:06:28,330 --> 00:06:33,830 Or if the device is actually connected to the Internet flew mobile dentist if is going to return the 102 00:06:33,830 --> 00:06:39,240 value number to zero or if the device is actually connected to the Internet through other technologies 103 00:06:39,540 --> 00:06:42,340 that then it's going to get you to retain the value number is free. 104 00:06:42,480 --> 00:06:43,140 OK. 105 00:06:43,440 --> 00:06:50,070 And if the actually device is not actually connected to the Internet at all then it's going to returned 106 00:06:50,100 --> 00:06:51,800 a value a number one thousand. 107 00:06:52,070 --> 00:06:55,410 OK so let's go back to our main activity that I've offered here. 108 00:06:55,410 --> 00:07:01,640 So this is going to return a value of the integer and this method actually to assets of value of type 109 00:07:01,650 --> 00:07:02,280 context. 110 00:07:02,280 --> 00:07:09,600 So the past is context main activity that this and he had created us some if else statements here. 111 00:07:09,750 --> 00:07:17,630 So here I have this if statement so if status in for if this valuable integer is equal to number 1. 112 00:07:17,670 --> 00:07:21,270 So this means that our device is actually connected to the internet for a wife. 113 00:07:21,300 --> 00:07:21,940 Right. 114 00:07:21,960 --> 00:07:24,320 So here I actually referred to the name of this. 115 00:07:24,360 --> 00:07:26,360 I imagine it's work type here. 116 00:07:26,400 --> 00:07:27,700 I imagine it's worked like that. 117 00:07:27,750 --> 00:07:34,140 Image triable get resources that get triable are that triable that Whyfor Internet. 118 00:07:34,140 --> 00:07:39,610 So here I am referring to the triable folder inside my resources and and here I am actually referring 119 00:07:39,620 --> 00:07:46,830 to the name of this image are that triable that Whyfor Internet as you can see here in my project structure 120 00:07:46,830 --> 00:07:48,310 inside the tribal folder. 121 00:07:48,480 --> 00:07:52,450 I have this mobile internet that PNB and Wi-Fi Internet that PNB OK. 122 00:07:52,500 --> 00:07:53,740 So you have these two images. 123 00:07:53,910 --> 00:07:58,300 In my project and here I am really fairly image to the name of this Wi-Fi Internet here. 124 00:07:58,350 --> 00:08:04,260 As you can see so now here again I am actually creating a toast object in order to let the user know 125 00:08:04,530 --> 00:08:09,710 that the device is actually connected to the Internet for wifely Wi-Fi Internet. 126 00:08:10,050 --> 00:08:15,180 And here I have an AS IF statement so if status info is equal to number zero. 127 00:08:15,420 --> 00:08:19,290 And this means that the device is actually connected from the Internet to the Internet through more 128 00:08:19,280 --> 00:08:19,980 wide. 129 00:08:19,980 --> 00:08:21,650 So again I am doing network time. 130 00:08:21,660 --> 00:08:28,530 That said IMET triable said image triable get resources that get triable are triable that more by Internet. 131 00:08:28,530 --> 00:08:29,190 OK. 132 00:08:29,490 --> 00:08:35,430 And he had created a toast object toast that make takes and this is their first argument this is going 133 00:08:35,430 --> 00:08:36,630 to be the second argument. 134 00:08:36,630 --> 00:08:40,150 Mobile internet and this is the land line shortcut show. 135 00:08:40,650 --> 00:08:45,870 And here I have an else statement and this means that if the device is actually connected to the Internet 136 00:08:46,280 --> 00:08:52,110 of other technologies or that device is not actually connected to the Internet at all then it is going 137 00:08:52,250 --> 00:08:54,420 to execute this or else statement here. 138 00:08:54,420 --> 00:08:57,760 So inside this I am inside this Ellis statement. 139 00:08:57,780 --> 00:09:00,280 I imagine it's for type that said Image resource. 140 00:09:00,330 --> 00:09:01,580 Art that's me pass me. 141 00:09:01,650 --> 00:09:03,720 Map that see Lanter. 142 00:09:04,050 --> 00:09:04,760 OK. 143 00:09:05,070 --> 00:09:10,680 And then in line 55 TOSed that make text the main activity that this and the taste that is going to 144 00:09:10,680 --> 00:09:16,940 be shown to the user is unknown and the land is short and it is going to be shown to the user. 145 00:09:17,070 --> 00:09:17,500 OK. 146 00:09:17,670 --> 00:09:23,550 So this I.S. launcher is actually the image that we have in our project as the actually the image of 147 00:09:23,550 --> 00:09:25,200 the icon of the application. 148 00:09:25,200 --> 00:09:31,260 So as you can see here in my project structure in say displays folder I have this map directory here. 149 00:09:31,410 --> 00:09:36,960 So inside this map directory I have these I.S. lunchers here as you can see with different qualities 150 00:09:37,740 --> 00:09:38,600 as you can see here. 151 00:09:38,700 --> 00:09:39,330 OK. 152 00:09:39,330 --> 00:09:44,670 So I just referred to the name of this image in my main activity class in order to let the user know 153 00:09:44,670 --> 00:09:50,010 that the technology is unknown or the user is not actually connected to the Internet or I can actually 154 00:09:50,010 --> 00:09:56,640 create another else if statement in order to actually see whether that whether the device is actually 155 00:09:56,640 --> 00:09:59,720 connected to the Internet for all other technologies. 156 00:09:59,950 --> 00:10:04,190 So I can actually create an else if statement and check for them. 157 00:10:04,780 --> 00:10:09,240 These are networks that this is actually equal to number three as you can see here. 158 00:10:09,400 --> 00:10:11,450 This status info is equal to number of. 159 00:10:11,560 --> 00:10:17,050 Then I can actually create a toast or actually set on an image to the image for you and let the user 160 00:10:17,050 --> 00:10:20,410 know that the device is actually connected to the Internet. 161 00:10:20,410 --> 00:10:22,570 And it is actually using other technologies. 162 00:10:22,570 --> 00:10:23,310 OK. 163 00:10:23,770 --> 00:10:25,360 So hopefully that makes sense. 164 00:10:25,360 --> 00:10:29,830 And now let's actually run our project and see what happens. 165 00:10:29,830 --> 00:10:34,060 So as you can see here our application is running on this emulator right. 166 00:10:34,060 --> 00:10:37,990 So let's actually click on the spot and let's see what happens. 167 00:10:38,050 --> 00:10:44,530 And now as you can see our application actually crashed and the answer there isn't that this application 168 00:10:44,530 --> 00:10:50,730 is actually crashed is actually inside this manifest here inside this android manifested. 169 00:10:50,760 --> 00:10:53,770 Example here when you actually put some permissions. 170 00:10:53,770 --> 00:10:59,850 So inside this manifest tag as you can see here inside this manifest tag I need to put some permissions. 171 00:10:59,870 --> 00:11:02,340 So here I just need to open a tag. 172 00:11:02,590 --> 00:11:08,620 And then here I just need to type in user's permission and first of all I need to access the wife by 173 00:11:09,430 --> 00:11:16,120 state and that I need to close this permission here and then here I need to actually access the Internet. 174 00:11:16,150 --> 00:11:22,980 So here I need to actually type in users permission and here I just need to type in Internet and then 175 00:11:22,980 --> 00:11:25,120 I need to close this permission this attack. 176 00:11:25,120 --> 00:11:29,870 I need to put this closing tag here or I could actually use self-closing. 177 00:11:29,920 --> 00:11:36,510 So here I could just typing here slash and this and this is a closing tag here as you can see. 178 00:11:36,670 --> 00:11:44,380 And in this way I am actually close in this attack here or I can actually use this one here in this 179 00:11:44,380 --> 00:11:46,300 way I could actually close the stack. 180 00:11:46,330 --> 00:11:47,200 OK. 181 00:11:47,670 --> 00:11:54,280 And now I could actually I need to actually add another permission so I need to typing I need to put 182 00:11:54,280 --> 00:11:59,210 this open in tag here and then I just need to type in user's permission. 183 00:11:59,350 --> 00:12:01,500 And here I need to type pean. 184 00:12:01,600 --> 00:12:03,220 Network. 185 00:12:03,940 --> 00:12:05,840 Network Access Network state. 186 00:12:05,980 --> 00:12:06,700 OK. 187 00:12:06,700 --> 00:12:10,860 So here I just need to close this up Hermitian here is attached here. 188 00:12:10,960 --> 00:12:14,020 So as you can see here I need to put these permissions here. 189 00:12:14,250 --> 00:12:14,840 OK. 190 00:12:15,100 --> 00:12:18,470 And I need to ask the user that you want to actually access this permissions. 191 00:12:18,500 --> 00:12:25,480 OK I need to access these features access by state access this internet and access networks. 192 00:12:25,690 --> 00:12:26,230 OK. 193 00:12:26,470 --> 00:12:29,210 So let's run our project again and see what happens. 194 00:12:29,320 --> 00:12:33,310 So as you can see here our application is running on this emulator here. 195 00:12:33,400 --> 00:12:39,130 So let's actually click on this network status button here and now as you can see it says mobile internet 196 00:12:39,430 --> 00:12:41,330 and we have this image here more wide. 197 00:12:41,440 --> 00:12:41,940 OK. 198 00:12:41,950 --> 00:12:47,620 So this device this emulator is actually connected to the Internet from Mobile not qualify. 199 00:12:47,880 --> 00:12:48,480 OK. 200 00:12:49,300 --> 00:12:55,540 So you can actually do it on this application on your actual device and you can actually see the results 201 00:12:55,540 --> 00:12:56,120 there. 202 00:12:56,380 --> 00:13:02,650 So hopefully that makes sense and I think that's enough for this tutorial so if you have any questions 203 00:13:02,950 --> 00:13:07,620 please post the discussion in the course and then I'll do my best to answer all of your questions. 204 00:13:07,630 --> 00:13:10,900 Thank you very much for watching and I'll see you in the next tutorial.