1 00:00:00,890 --> 00:00:03,250 Hello this is what has occurred to me. 2 00:00:03,590 --> 00:00:10,970 And in this material we are going to put the coats inside our main activity class in order to ask the 3 00:00:10,970 --> 00:00:18,860 user to give us the permission to draw widgets on the screen on the user's phone screen. 4 00:00:18,860 --> 00:00:24,280 So first of all let's delete this unclick listener are pretty and float in here because we do not needed 5 00:00:24,330 --> 00:00:31,850 any more and here so we just have the bottom billion floating and we initialize it here inside our uncreate 6 00:00:31,850 --> 00:00:32,670 method. 7 00:00:32,690 --> 00:00:42,830 Now we need to go inside our main activity class and puts the code or the ID of the drawing over other 8 00:00:42,830 --> 00:00:44,290 apps permission. 9 00:00:44,780 --> 00:00:46,430 So each permission should have an ID. 10 00:00:46,430 --> 00:00:47,130 Right. 11 00:00:47,210 --> 00:00:50,410 Lets put the ID here. 12 00:00:50,620 --> 00:00:55,680 So I'm going to paste this line of code here so it is private static. 13 00:00:56,200 --> 00:01:02,330 So it is a class actually a class variable and it is fine. 14 00:01:02,330 --> 00:01:07,230 All it is constant it cannot be changed later and it is of type integer. 15 00:01:07,330 --> 00:01:13,640 The name is Id draw over other apps permission and we initially assign the value number one here. 16 00:01:13,690 --> 00:01:19,370 It doesn't really matter what you assign to this variable but it must be unique. 17 00:01:19,520 --> 00:01:26,070 Ok For example I can assign the value in 2000 or files and it doesn't really matter. 18 00:01:26,120 --> 00:01:31,100 But this value that I assign to this variable must be a unique value. 19 00:01:31,110 --> 00:01:35,000 Now we need to go inside our uncreate method. 20 00:01:36,500 --> 00:01:41,510 So now I'm going to paste an if statement in this and create method here. 21 00:01:42,290 --> 00:01:51,500 So this is my IF statement and you can see that I'm saying if build that version that STK int is greater 22 00:01:51,530 --> 00:01:57,230 than or equal to build that version that codes that m. 23 00:01:57,260 --> 00:02:06,270 So as you may already know from Android marshmallow and later the must ask runtime permissions before 24 00:02:06,280 --> 00:02:07,800 Emrick much marshmallow. 25 00:02:07,960 --> 00:02:11,230 Are these kinds of permissions are already already granted. 26 00:02:11,240 --> 00:02:21,230 Or for example the user may have given permission to the application by installing the app on his or 27 00:02:21,230 --> 00:02:22,170 her device. 28 00:02:22,340 --> 00:02:28,620 But from Android marshmallow and later we must ask this permission directly. 29 00:02:30,750 --> 00:02:35,130 The user must know what we are going to do with the app with the device. 30 00:02:35,460 --> 00:02:42,180 So if you are saying if built that version that STK is greater than or equal to build that version code 31 00:02:42,270 --> 00:02:51,860 that M M stands for and with marshmallow OK and later and we have an AND statement if not or bant here 32 00:02:51,860 --> 00:03:01,170 it is not not settings that can do the overlays context this or main activity that this lets It's a 33 00:03:01,170 --> 00:03:09,670 good program practice to use our context like this one main activity that is in order in order to refer 34 00:03:09,670 --> 00:03:10,970 to a specific context. 35 00:03:12,220 --> 00:03:21,950 Here you are saying that if the settings application of the user's device has not given our application 36 00:03:22,190 --> 00:03:27,660 the permission to draw our widget over other apps. 37 00:03:27,890 --> 00:03:33,490 So the settings application must give us the permission to seethings application is going to be opened 38 00:03:33,950 --> 00:03:35,390 and it's going to give us the permission. 39 00:03:35,420 --> 00:03:42,680 So if this permission is not given by the settings application to our application we're going what is 40 00:03:42,890 --> 00:03:47,210 it we are going to go inside the curly braces of this statement and we are going to first create an 41 00:03:47,210 --> 00:03:55,490 Internet assignment operator new intent settings that action managed overlay permission. 42 00:03:55,490 --> 00:04:02,560 We want to open the settings application in order to ask this permission action manage orally permission. 43 00:04:02,570 --> 00:04:08,270 So it's going to open that specific part of the city's application in order to give us their permission 44 00:04:08,300 --> 00:04:16,490 to manage to float our widget over on the screen come up and we are using this word here. 45 00:04:16,500 --> 00:04:20,830 So you need to pass a value of that as the second argument you are right or parse. 46 00:04:21,100 --> 00:04:28,200 We need to specify the package name of our application that is going to ask this permission. 47 00:04:28,270 --> 00:04:32,490 This package name is actually unique for every application. 48 00:04:32,590 --> 00:04:40,090 So we put two coats here and inside the coats we must use this value here is the exact value package 49 00:04:40,450 --> 00:04:42,180 the capital piece. 50 00:04:42,370 --> 00:04:47,600 As you can see it stores all of these letters of this package and it is actually the lower cost. 51 00:04:47,770 --> 00:04:51,590 So we put a call in here exactly the same. 52 00:04:51,910 --> 00:04:56,730 And we put a plus in order to concatenate this value with this one get package name. 53 00:04:56,740 --> 00:05:04,290 So by using this gift package name if we can access the package name our application Okay. 54 00:05:04,690 --> 00:05:08,130 And then the say start activity for resolved. 55 00:05:08,320 --> 00:05:16,150 But here I don't like this start activity for resolve here because this drawing over other apps permission 56 00:05:16,180 --> 00:05:23,350 it's not it's not like any other permissions in Android we have to open the settings application and 57 00:05:23,350 --> 00:05:30,490 then the settings application is going to actually help us to give the APTA permission to float the 58 00:05:30,490 --> 00:05:38,060 view on the screen so we can actually use a much more simpler solution instead of saying start start 59 00:05:38,080 --> 00:05:44,740 activity for results or using these ideas that are or other permissions here we can't just simply say 60 00:05:44,980 --> 00:05:52,090 start activity start activity and then we need to just pass the intent. 61 00:05:52,090 --> 00:05:54,760 So we passed the intent here. 62 00:05:55,570 --> 00:05:58,620 So now let me just delete this line of code here. 63 00:05:58,930 --> 00:06:03,910 Let's also delete this constant that we created here for the permission. 64 00:06:04,140 --> 00:06:04,750 OK. 65 00:06:05,050 --> 00:06:08,680 It's actually necessary to create such constants. 66 00:06:08,680 --> 00:06:15,070 If you are actually asking for runtime permission but this drawing over other apps permission is not 67 00:06:15,070 --> 00:06:16,420 a usual permission. 68 00:06:16,610 --> 00:06:18,830 OK it's not like any other permissions. 69 00:06:18,910 --> 00:06:20,530 It's completely different. 70 00:06:20,650 --> 00:06:23,350 So we can use a completely different solution. 71 00:06:23,650 --> 00:06:29,020 Instead we use Start activity intent and we just passed the intent here. 72 00:06:29,020 --> 00:06:32,770 Now let's also implement the float the view on the screen. 73 00:06:32,800 --> 00:06:34,270 Inside our class. 74 00:06:34,270 --> 00:06:39,580 So before the curly braces were made I think the class I'm gonna say private void. 75 00:06:40,780 --> 00:06:45,780 And then if it is going to be floats the view on the screen a pair of prentices let's open and close 76 00:06:45,780 --> 00:06:47,900 this Meffert by using these curly braces. 77 00:06:47,920 --> 00:06:56,580 Let's say PTEN fluting that set on click listener knew and the hold down the shift key on your keyboard 78 00:06:56,610 --> 00:07:02,100 and press and the key on your keyboard in order to see the autocomplete feature options and then press 79 00:07:02,100 --> 00:07:03,390 on your keyboard. 80 00:07:03,700 --> 00:07:04,670 And inside is ugly. 81 00:07:04,690 --> 00:07:09,920 If we can now start the service we can say start service and we need to pass and enter. 82 00:07:09,930 --> 00:07:16,350 So with a new Internet object and as the first argument we are going to parse the context main activity 83 00:07:16,360 --> 00:07:21,650 that this comma and as the second argument we need to pass the service. 84 00:07:21,720 --> 00:07:23,280 The service is floating. 85 00:07:23,280 --> 00:07:27,260 View service that class semicolon. 86 00:07:27,260 --> 00:07:30,200 So now let me create a new line so that we can see what's going on here. 87 00:07:30,200 --> 00:07:32,440 And finally get the services started. 88 00:07:32,480 --> 00:07:38,360 We don't need the main activity anymore so we just call finish in order to close it. 89 00:07:38,450 --> 00:07:39,110 That's it. 90 00:07:39,110 --> 00:07:45,930 Now let's run the app and then I am way to choose my emulator as you can see my emulator runs and Redgate 91 00:07:45,980 --> 00:07:48,170 or UAP I-26 and press on. 92 00:07:48,170 --> 00:07:51,510 OK so here visitings application is open. 93 00:07:51,530 --> 00:07:56,480 It says display over other apps permission allowed display over other apps. 94 00:07:56,480 --> 00:08:02,570 Now I'm going to actually allow this app to display our widget on the screen by just turning this one 95 00:08:02,630 --> 00:08:02,980 on. 96 00:08:03,100 --> 00:08:05,090 This we did this component. 97 00:08:05,140 --> 00:08:09,010 Now I'm going to close this app OK. 98 00:08:09,170 --> 00:08:11,360 I'm going to close it now. 99 00:08:11,380 --> 00:08:15,310 I'm going to open my apps and I'm going to choose this application floating view. 100 00:08:15,400 --> 00:08:16,710 So the app is now opened. 101 00:08:16,900 --> 00:08:18,580 Let's click on floating button. 102 00:08:18,580 --> 00:08:25,550 Now the wizard is shown to the user but there is a problem here when I click on this widget here. 103 00:08:25,600 --> 00:08:29,280 It's not actually switched to the expanded state. 104 00:08:29,290 --> 00:08:29,870 Right. 105 00:08:30,070 --> 00:08:35,020 Or as you can see when I drag the switches over on the screen it's not small. 106 00:08:35,260 --> 00:08:37,140 There's something wrong here. 107 00:08:37,240 --> 00:08:43,240 So we need to go back to android studio and it's actually open to float any restart of a fight. 108 00:08:43,420 --> 00:08:47,830 The problem is here inside this file inside this class. 109 00:08:48,160 --> 00:08:52,450 And as you can see inside the switch statement we have this on the right. 110 00:08:52,450 --> 00:08:53,120 Let's go inside. 111 00:08:53,130 --> 00:08:53,740 Others move it. 112 00:08:53,740 --> 00:08:58,920 We have this switch statement and we actually created these variables. 113 00:08:59,140 --> 00:09:00,610 But we are not using them. 114 00:09:00,610 --> 00:09:06,700 How can I actually understand that we are not using them because as he has even hovered over this for 115 00:09:06,700 --> 00:09:13,820 example this one to start exposition it says de-value w the palms that X assigned to a start position 116 00:09:13,990 --> 00:09:15,580 is never used. 117 00:09:15,580 --> 00:09:22,400 This means that these variables for example start expose start white holes start to touch explore start 118 00:09:22,540 --> 00:09:30,100 touch why these variables are not used here and when here for example for this emotional event that 119 00:09:30,100 --> 00:09:34,350 action of we are actually referring to is valuable. 120 00:09:34,360 --> 00:09:37,900 But we are accessing the default values that we said here. 121 00:09:37,900 --> 00:09:39,750 Zero zero zero zero. 122 00:09:40,240 --> 00:09:42,730 As you can see we are not accessing the actual values. 123 00:09:42,730 --> 00:09:44,040 There is something wrong here. 124 00:09:44,260 --> 00:09:49,930 So now I want you to pause the video and solve this problem on your own. 125 00:09:50,260 --> 00:09:55,390 And if you cannot actually solve it you can actually play the video and then I'm going to show you how 126 00:09:55,390 --> 00:09:56,790 we can solve this problem. 127 00:09:57,190 --> 00:10:00,570 So now I'm going to show you that in the solution. 128 00:10:01,120 --> 00:10:07,790 The solution is here instead of assigning actually default values to this variable. 129 00:10:08,170 --> 00:10:10,810 Let's just say this is declared them. 130 00:10:10,920 --> 00:10:16,870 Let's delete these default values but at the bottom here it's actually showing us an error right. 131 00:10:16,900 --> 00:10:22,730 I just deleted these default values. 132 00:10:22,760 --> 00:10:27,170 Now let's cut all of these variables here. 133 00:10:27,800 --> 00:10:29,250 All of these four variables. 134 00:10:29,520 --> 00:10:33,140 Let's scroll to the top and let's declare them inside our class. 135 00:10:33,140 --> 00:10:35,730 Here let's face them here. 136 00:10:35,750 --> 00:10:42,080 Now the problem is solved and we have no errors here inside our untouched untouched method here. 137 00:10:42,080 --> 00:10:49,750 Right now let's run the app that me show you the emulator. 138 00:10:49,870 --> 00:10:51,080 If I click on this button. 139 00:10:51,370 --> 00:10:53,910 Now we have this widget that really did. 140 00:10:53,980 --> 00:10:57,600 Now it is actually switched to the expanded state. 141 00:10:57,670 --> 00:11:05,980 Right now let's test the unclick listener of these components for example this one lion line is tapped 142 00:11:06,500 --> 00:11:10,390 the back leopard image. 143 00:11:10,390 --> 00:11:13,460 The next we have this close button. 144 00:11:13,480 --> 00:11:20,600 We have this open the application is opened and let's actually click on this close button. 145 00:11:20,600 --> 00:11:24,710 Now it says expanded closed but it is pressed. 146 00:11:24,710 --> 00:11:29,500 So if I click on this close spot in here now the service is stopped completely. 147 00:11:29,870 --> 00:11:32,640 Let's open this up again. 148 00:11:32,850 --> 00:11:35,780 View let's click on this button here. 149 00:11:35,820 --> 00:11:39,400 Let's actually drag it as you can see it is now completely small. 150 00:11:39,780 --> 00:11:40,380 Right. 151 00:11:41,270 --> 00:11:48,560 If it open for example Google Chrome now we can see it this widget is actually completely smooth and 152 00:11:48,560 --> 00:11:53,130 we can track it here on the screen. 153 00:11:53,570 --> 00:11:54,740 So that's it. 154 00:11:54,740 --> 00:12:03,440 Congratulations you've made it and I hope that you can create your own Android applications and creating 155 00:12:03,560 --> 00:12:06,400 widgets like this font. 156 00:12:06,410 --> 00:12:14,900 Or you can create a widget completely based on or on your own design and user experience and make sure 157 00:12:15,140 --> 00:12:20,700 to upload your applications to Google Play and make me proud. 158 00:12:20,870 --> 00:12:22,640 So thank you very much for watching. 159 00:12:22,850 --> 00:12:27,200 And I will see you in the next application by.