1 00:00:00,270 --> 00:00:05,620 Hire everyone in this theater you're going to go ahead and create another Android application. 2 00:00:05,730 --> 00:00:09,960 So we just need to click on this start in your Android studio project. 3 00:00:09,990 --> 00:00:18,390 So here just typing up 9 and you can actually specify a company domain package name and or project location 4 00:00:18,630 --> 00:00:27,370 for your application and then click on next here choose the API 16 Android 4.1 Jelly Bean for our minimum 5 00:00:27,360 --> 00:00:35,430 STK and then click on next here choose plant Blant activity and then click on next on here don't change 6 00:00:35,430 --> 00:00:38,110 anything and click on finish. 7 00:00:38,580 --> 00:00:39,130 OK. 8 00:00:39,270 --> 00:00:39,940 OK. 9 00:00:39,960 --> 00:00:43,160 Now as you can see our project is actually created. 10 00:00:43,590 --> 00:00:51,300 So let's actually did it this hell over text here and then double click on the rest for the here and 11 00:00:51,300 --> 00:00:57,870 then double click on this layout and double double click on this activity main that are examined here 12 00:00:58,320 --> 00:01:02,400 and then choose these floating action button here and then. 13 00:01:02,400 --> 00:01:07,410 So let's actually go back inside this content underline minute example and then double click on this 14 00:01:08,160 --> 00:01:12,320 tab here in order to make this area wider. 15 00:01:12,660 --> 00:01:19,290 And then we can actually dragging some components and drop this out here. 16 00:01:19,290 --> 00:01:24,930 Now let's actually track our linearly out with T-coil into this screen here and then let's actually 17 00:01:24,930 --> 00:01:33,330 put it in the center which of these are relatively out and then actually drag a text field into These 18 00:01:33,410 --> 00:01:35,320 are linearly called vertical OK. 19 00:01:35,460 --> 00:01:41,550 So as you can see here we've got these text fields here and there and it's actually track a plain text 20 00:01:41,550 --> 00:01:43,170 here. 21 00:01:44,010 --> 00:01:50,140 And then let's actually track and our text field and then another text field here. 22 00:01:50,160 --> 00:01:50,750 OK. 23 00:01:51,000 --> 00:01:52,890 So as you can see here click on this. 24 00:01:52,920 --> 00:01:58,790 Our first text you here and the double click on it for the ID you just type in here. 25 00:01:58,800 --> 00:02:02,550 EDT number 1. 26 00:02:02,700 --> 00:02:05,450 Double click on the second to textfield here. 27 00:02:05,700 --> 00:02:07,080 OK. 28 00:02:07,530 --> 00:02:12,060 For the ID just type in here EDT not to. 29 00:02:12,680 --> 00:02:13,360 OK. 30 00:02:13,620 --> 00:02:18,240 Double click on these are textfield here for the ID just type in here. 31 00:02:18,240 --> 00:02:20,890 EDT now three. 32 00:02:20,940 --> 00:02:21,850 OK. 33 00:02:22,380 --> 00:02:27,670 So as you can see here we've got free textfield here inside these are linearly out vertical. 34 00:02:27,840 --> 00:02:32,320 Let's actually write another text view into this linearly Ellsworthy call. 35 00:02:32,520 --> 00:02:37,700 So here are this large view here and then put it here. 36 00:02:37,710 --> 00:02:41,540 So let's actually give our margin to this text view. 37 00:02:41,790 --> 00:02:48,010 So just choose this text text view here and here you can actually find the layout margin here. 38 00:02:48,030 --> 00:02:48,670 OK. 39 00:02:48,960 --> 00:02:52,820 And for the I'll just type in here for example number 20. 40 00:02:52,850 --> 00:02:53,480 OK. 41 00:02:53,700 --> 00:03:00,380 And then double click and these are text 3 here and 40 for the text just typing here result. 42 00:03:00,450 --> 00:03:05,520 And for the ID just type in here TXI the result OK. 43 00:03:05,530 --> 00:03:10,240 So as you can see here we've got this text view here. 44 00:03:10,240 --> 00:03:14,690 So let's actually drag a button into this or linearly out vertical. 45 00:03:15,040 --> 00:03:16,720 So let's actually find the bottom. 46 00:03:16,750 --> 00:03:20,790 As you can see here and then put it below these are text. 47 00:03:20,830 --> 00:03:22,380 View here. 48 00:03:22,480 --> 00:03:31,420 Double click on it and for the text just type in here gets the maximum value and for the ID just type 49 00:03:31,420 --> 00:03:37,510 in here PTEN maximum value. 50 00:03:37,690 --> 00:03:38,430 OK. 51 00:03:38,860 --> 00:03:42,960 And let's actually write a text view into this Alania and here. 52 00:03:43,090 --> 00:03:49,350 So just click on these large text view here and then put it up below it is a button here. 53 00:03:49,450 --> 00:03:52,690 Let's actually give march into this text to view here. 54 00:03:52,690 --> 00:03:57,860 So just click this test view and find the left margin here. 55 00:03:57,980 --> 00:04:05,630 Inside these are properties and then give a value to the to the all for example number 20. 56 00:04:06,010 --> 00:04:09,680 And now it's actually double click on these are text view here. 57 00:04:09,940 --> 00:04:11,980 And for the text just typing here. 58 00:04:12,040 --> 00:04:21,700 So your random numbers and the ID just type in here ticks the secure random numbers. 59 00:04:21,820 --> 00:04:22,370 OK. 60 00:04:22,510 --> 00:04:28,330 Let's actually track our button into this linear layout vertical to just click on this button here and 61 00:04:28,330 --> 00:04:29,360 then put it below. 62 00:04:29,350 --> 00:04:30,610 These are takes to you here. 63 00:04:30,610 --> 00:04:31,710 OK. 64 00:04:32,380 --> 00:04:35,440 Double click on it for the text just type in here. 65 00:04:35,440 --> 00:04:46,540 Generate secure random numbers and for the ID just type in here PTEN secure random numbers. 66 00:04:46,540 --> 00:04:49,120 So now our lay out is actually ready. 67 00:04:49,180 --> 00:04:54,460 So let's actually go back inside this main activity our job right here and then delete these lines of 68 00:04:54,460 --> 00:05:02,500 code here that are actually related to the Options menu and delete this block of code here which is 69 00:05:02,500 --> 00:05:06,040 actually related to the to the floating action button here. 70 00:05:06,700 --> 00:05:10,300 And now we can actually put in our own codes inside this method. 71 00:05:10,420 --> 00:05:11,520 Ok everyone. 72 00:05:11,530 --> 00:05:15,050 Now let's actually create some objects here. 73 00:05:15,370 --> 00:05:19,970 So just typing here any text OK. 74 00:05:20,250 --> 00:05:23,090 And then for the name of this object just typing here. 75 00:05:23,100 --> 00:05:26,650 EDT number 1 assignment operator. 76 00:05:26,880 --> 00:05:31,220 And then let's actually cast this object to our it is a text object. 77 00:05:31,270 --> 00:05:32,150 OK. 78 00:05:32,350 --> 00:05:38,240 Find view by ID are thought Id thought it the number one. 79 00:05:38,310 --> 00:05:38,980 OK. 80 00:05:39,240 --> 00:05:42,190 Let's actually create another editrix object. 81 00:05:42,210 --> 00:05:46,310 EDT Nahm 2 assignment operator. 82 00:05:46,350 --> 00:05:49,980 Now we need to cast this object to an added text object. 83 00:05:49,980 --> 00:06:02,050 Find you by id r that Id dot EDT to edit text it ity Nahm 3. 84 00:06:02,060 --> 00:06:10,560 Assignment operator the text find you by id r that Id dot EDT. 85 00:06:10,620 --> 00:06:11,680 Number three. 86 00:06:11,740 --> 00:06:18,470 OK so now let's actually create a button here. 87 00:06:18,600 --> 00:06:20,640 So just type in here button. 88 00:06:21,400 --> 00:06:31,500 Ok PTEN gets maximum assignment operator and then actually has this object to our button object. 89 00:06:31,590 --> 00:06:39,450 Find if your BY ID or that Id that's between maximum value. 90 00:06:39,460 --> 00:06:43,300 OK so now let's actually create a text you object takes view. 91 00:06:43,680 --> 00:06:53,770 And for the name of this object just type in here TXI the result assignment operator. 92 00:06:54,140 --> 00:07:00,600 And then let's actually cast this object to our text view object find you by ID or that ID that T x 93 00:07:00,770 --> 00:07:07,960 The result is actually create another button here. 94 00:07:09,070 --> 00:07:19,170 But in between secure random number OK and then let's actually put an assignment operator here. 95 00:07:19,470 --> 00:07:25,340 So here we need to actually test this object to about an object pattern find view by ID. 96 00:07:25,400 --> 00:07:29,800 Our thoughts are the dots between secure random numbers. 97 00:07:29,820 --> 00:07:30,730 OK. 98 00:07:31,110 --> 00:07:37,530 So let's actually create another text your object takes to view the extreme secure random numbers and 99 00:07:37,530 --> 00:07:40,290 then actually put in an assignment operator here. 100 00:07:40,320 --> 00:07:48,070 So we need to actually test this object to a text view object find view by id r that Id dot the X the 101 00:07:48,450 --> 00:07:50,060 secure random numbers. 102 00:07:50,270 --> 00:07:51,070 OK. 103 00:07:51,660 --> 00:07:53,570 So hopefully that makes sense. 104 00:07:53,940 --> 00:07:55,370 And let's actually. 105 00:07:55,440 --> 00:07:56,200 OK everyone. 106 00:07:56,200 --> 00:08:02,390 Now let's actually make the Spartan and Unkrich listener to the clique's that the user make on this 107 00:08:02,410 --> 00:08:04,400 button as you can see this is the button. 108 00:08:04,710 --> 00:08:07,940 So let's actually make this button on click listener. 109 00:08:07,980 --> 00:08:10,200 So just refer to the name of this button. 110 00:08:10,270 --> 00:08:13,690 Pythian get maximum that certain click listener. 111 00:08:14,400 --> 00:08:21,110 OK new view unclick listener and that insight is Uncle Fred. 112 00:08:21,120 --> 00:08:23,500 We can actually put our own quotes. 113 00:08:23,520 --> 00:08:24,620 OK. 114 00:08:25,590 --> 00:08:29,220 So now let's actually typing some more quotes. 115 00:08:29,230 --> 00:08:35,680 Now I want to actually read the values that the user entered on these textfield. 116 00:08:35,700 --> 00:08:36,350 OK. 117 00:08:36,870 --> 00:08:45,180 So in order to read the values that the user enter on these tapes use I can't just create a double variable 118 00:08:45,500 --> 00:08:46,800 double. 119 00:08:47,130 --> 00:08:49,920 Now one assignment operator. 120 00:08:50,220 --> 00:09:00,180 And then I can just refer to the name of this EDT not one dot text dot two string. 121 00:09:00,680 --> 00:09:01,170 OK. 122 00:09:01,170 --> 00:09:03,300 So as you can see here it's now showing us an error. 123 00:09:03,300 --> 00:09:07,910 So let's actually hover our mouse pointer over this error area and see what's the error. 124 00:09:08,130 --> 00:09:13,790 Incompatible types require double found job that Lancastrian. 125 00:09:13,980 --> 00:09:19,140 So as you can see here we specified that the data type of this variable is double. 126 00:09:19,140 --> 00:09:19,950 OK. 127 00:09:20,400 --> 00:09:26,380 And now we are assigning a value of type string to this variable. 128 00:09:26,670 --> 00:09:34,280 So in order to actually eliminate this error we need to convert this string value to our double value. 129 00:09:34,530 --> 00:09:36,360 So I can just type in here double. 130 00:09:36,470 --> 00:09:37,050 OK. 131 00:09:37,360 --> 00:09:40,090 That part's double. 132 00:09:40,890 --> 00:09:45,260 And then we can just put this piece of code inside the prentices. 133 00:09:45,270 --> 00:09:47,370 Now as you can see the error is gone. 134 00:09:47,370 --> 00:09:54,880 Here I am just putting this piece of code here in order to convert this string value to a double value. 135 00:09:55,020 --> 00:09:58,950 And then I am actually assigning that value to this double variable.