1 00:00:00,360 --> 00:00:05,820 Hire everyone in this tutorial I run a touch about menus in Android. 2 00:00:05,820 --> 00:00:11,380 So just click on this start in your Android studio project and for the application name just type in 3 00:00:11,510 --> 00:00:21,150 an app 48 and then click on next and here choose API 16 Android 4.1 Jelly Bean and then click on next 4 00:00:21,840 --> 00:00:24,800 and here choose empty activity next. 5 00:00:25,050 --> 00:00:27,110 And here click on finish. 6 00:00:28,040 --> 00:00:32,190 So now as you can see our project is actually created. 7 00:00:32,330 --> 00:00:35,660 So now it's actually double click on this and this folder here. 8 00:00:35,900 --> 00:00:39,650 And now I want to actually create a directory for my menu. 9 00:00:39,650 --> 00:00:40,270 OK. 10 00:00:40,340 --> 00:00:45,350 So just right click on this race for that new and then click on directory. 11 00:00:45,620 --> 00:00:50,860 And for the name of our directory just type in here menu and then click on OK. 12 00:00:51,170 --> 00:00:53,510 So here I have this menu directory. 13 00:00:53,510 --> 00:01:01,130 So now I want to actually put our I took the XML file inside this menu for the menu that I want to use 14 00:01:01,130 --> 00:01:02,890 in my application. 15 00:01:03,170 --> 00:01:08,660 So just right click on the menu here new and then click on menu resource find. 16 00:01:08,750 --> 00:01:09,830 OK. 17 00:01:10,460 --> 00:01:15,040 And as you can see here now you need to specify our name for our menu. 18 00:01:15,230 --> 00:01:25,040 So here I am just typing menu underlined made ok because I want this menu to be inside the inside the 19 00:01:25,040 --> 00:01:28,270 main activity for my activity underline main that I examine. 20 00:01:28,370 --> 00:01:34,220 So this is going to be the name menu underline main the source said should be made as you can see here 21 00:01:34,580 --> 00:01:37,130 and the directory name must be menu. 22 00:01:37,220 --> 00:01:38,050 OK. 23 00:01:38,210 --> 00:01:39,040 And then click on it. 24 00:01:39,050 --> 00:01:39,780 OK. 25 00:01:40,160 --> 00:01:45,230 So here inside this menu directory I have this menu underline made that examen. 26 00:01:45,260 --> 00:01:45,860 OK. 27 00:01:46,070 --> 00:01:48,780 And here is my menu underlined minute example. 28 00:01:48,920 --> 00:01:51,920 So here I can actually create create some items. 29 00:01:52,160 --> 00:01:54,070 So here I can just open tag. 30 00:01:54,350 --> 00:01:57,420 And as you can see here we have this group and we have this item. 31 00:01:57,440 --> 00:02:02,640 So just select this item here and then our present space key on your keyboard. 32 00:02:02,990 --> 00:02:08,090 And now I can actually for example specify an ID for my item. 33 00:02:08,210 --> 00:02:12,800 For example the ID is going to be at sign Plus Id slash. 34 00:02:12,980 --> 00:02:21,950 And here the is for example settings and here are just a present interview on your keyboard now I want 35 00:02:21,960 --> 00:02:25,180 to specify a title for this idea. 36 00:02:25,220 --> 00:02:35,110 For example I can just type in title and the title is going to be settings OK for this menu. 37 00:02:35,250 --> 00:02:37,570 This is the title. 38 00:02:37,880 --> 00:02:40,770 And now I need to actually close this item. 39 00:02:40,770 --> 00:02:49,410 This item tag so i can just put this closing tag here and now as you can see I closed this item back. 40 00:02:49,440 --> 00:02:55,800 So now I have this item here and now inside this main activity class we need to actually overwrite some 41 00:02:55,800 --> 00:02:59,090 of the methods that are related to the menu. 42 00:02:59,190 --> 00:03:05,850 So the first one is on create options menu as you can see here. 43 00:03:05,910 --> 00:03:09,420 So just select it and press Enter key on your keyboard. 44 00:03:09,420 --> 00:03:15,690 So as you can see here this is our Meffert the first of it and the second one is when the user clicks 45 00:03:15,690 --> 00:03:18,630 on one of those items inside the menu. 46 00:03:18,840 --> 00:03:26,320 So the second one is on item as you can see here on options item selected as you can see here. 47 00:03:26,340 --> 00:03:32,360 So just select the second one on options item selected and then press on Enter key on your keyboard. 48 00:03:32,610 --> 00:03:36,180 So here I have these two methods that are related to the menu. 49 00:03:36,180 --> 00:03:39,890 So now let's actually run our project and see what happens. 50 00:03:40,020 --> 00:03:46,890 So now as you can see our application is running on this emulator and we cannot see the menu inside 51 00:03:46,950 --> 00:03:48,510 this action bar here. 52 00:03:48,510 --> 00:03:50,470 So remember that this is the action board. 53 00:03:50,540 --> 00:03:51,040 OK. 54 00:03:51,180 --> 00:03:59,160 And here is the name of our application at 48 and here at the right side I want to see the menu actually 55 00:03:59,460 --> 00:04:00,770 the menu button. 56 00:04:00,900 --> 00:04:06,030 So in order to do that let's actually delete this line of code here on here as you can see inside this 57 00:04:06,170 --> 00:04:07,510 uncreate options menu. 58 00:04:07,620 --> 00:04:11,850 It is a line of code and inside this method to actually put my own logic here. 59 00:04:11,850 --> 00:04:18,460 So here inside this uncreate options menu I can just type in the GET menu inflator. 60 00:04:18,510 --> 00:04:18,990 OK. 61 00:04:19,200 --> 00:04:25,760 So when this object here in order to actually put our menu are inside our action bar. 62 00:04:25,770 --> 00:04:26,290 OK. 63 00:04:26,340 --> 00:04:30,680 So as you can see here this is an action bar and I want to actually put the menu here. 64 00:04:31,050 --> 00:04:33,710 So here I need to put this method here. 65 00:04:33,780 --> 00:04:37,020 Get menu inflator dot inflate. 66 00:04:37,860 --> 00:04:40,530 And here we need to actually specify two arguments. 67 00:04:40,530 --> 00:04:45,630 The first one is the menu XML file that we created in our project. 68 00:04:45,630 --> 00:04:51,620 So as you can see here in our project an insight is this fall that I have this race and have this a 69 00:04:51,630 --> 00:04:54,570 menu directory and insight is menu. 70 00:04:54,570 --> 00:04:58,690 I have this exemplified menu underline main that exemption. 71 00:04:58,800 --> 00:05:01,590 So I need to refer to that XML file. 72 00:05:01,590 --> 00:05:08,070 I just need to type in here are dots menu that may menu underline main. 73 00:05:08,290 --> 00:05:15,480 OK comma and for the second argument I need to refer to this menu object that we receive as an argument 74 00:05:15,840 --> 00:05:18,100 from the Smurfette uncreate options menu. 75 00:05:18,210 --> 00:05:20,630 So here I can just type in menu. 76 00:05:20,670 --> 00:05:25,410 So now let's actually as you can see here this Smurfette returns a boolean value. 77 00:05:25,530 --> 00:05:31,920 So we need to return a boolean value so I can just type in here return to semicolon. 78 00:05:32,160 --> 00:05:35,280 So let's run our project now and see what happens. 79 00:05:35,280 --> 00:05:41,730 So now as you can see our application is running on this emulator here and here as you can see inside 80 00:05:41,730 --> 00:05:45,580 this inside this action bar I have this menu button here. 81 00:05:45,600 --> 00:05:50,510 So if I click on it and now we can see this item settings for this menu. 82 00:05:50,820 --> 00:05:51,420 OK. 83 00:05:51,420 --> 00:05:58,140 So inside this menu underline the example I created an item and I assigned an ID to this item. 84 00:05:58,260 --> 00:06:01,720 And here is the title of this item settings for menu. 85 00:06:01,860 --> 00:06:05,320 And here we can see these settings for this menu here. 86 00:06:05,700 --> 00:06:11,040 So let's go back to our main activity the double file here and now I want to actually do something when 87 00:06:11,040 --> 00:06:16,410 the user clicks on these settings for this menu but in here on this item. 88 00:06:16,410 --> 00:06:16,900 OK. 89 00:06:17,070 --> 00:06:20,340 So in order to do that let me actually delete this line of code here. 90 00:06:20,400 --> 00:06:26,160 And as you can see we have this method and this if it returns a value of a boolean and this and the 91 00:06:26,160 --> 00:06:29,130 name of this if it is an optional item selected. 92 00:06:29,190 --> 00:06:34,350 And we have an argument of type menu item and the name of this argument is item. 93 00:06:34,350 --> 00:06:43,200 So here we can specify that up which one of the items is actually selected by actually using this argument. 94 00:06:43,200 --> 00:06:51,200 So in order to do that here I can just get the ID of the items that are inside this menu underline that 95 00:06:51,200 --> 00:06:51,730 exemption. 96 00:06:51,750 --> 00:06:58,340 So as you can see here I have this item here and the I.D. of this item is sitting as you can see here. 97 00:06:58,440 --> 00:07:04,590 So inside this main activity that I here and inside is an options item selected in order to get that 98 00:07:04,650 --> 00:07:07,530 ID again it just create an int variable. 99 00:07:07,540 --> 00:07:14,340 Int ID the name of this variable is the assignment operator and that here and refer to the name of this 100 00:07:14,340 --> 00:07:16,430 item that is of type menu item. 101 00:07:16,430 --> 00:07:17,220 Right. 102 00:07:17,220 --> 00:07:21,770 So I can't just type in an item that gets item ID. 103 00:07:21,870 --> 00:07:23,850 So now I have that by the.