1 00:00:01,080 --> 00:00:07,360 And we have a WHILE loop here as you can see it says void or the value of this half height variable 2 00:00:07,590 --> 00:00:11,220 as you can see inside of this if statement. 3 00:00:11,410 --> 00:00:14,850 It actually created two other local variables. 4 00:00:14,850 --> 00:00:16,860 Final INT half white. 5 00:00:16,860 --> 00:00:18,890 So this is this is actually a constant. 6 00:00:19,080 --> 00:00:19,640 OK. 7 00:00:19,980 --> 00:00:25,890 And it actually divided the value of this height constant by 2 and then assign that value to these half 8 00:00:25,890 --> 00:00:33,650 height are constant and then it did the same job for this half year half with assignment operator. 9 00:00:33,840 --> 00:00:35,330 We divide it by two. 10 00:00:35,340 --> 00:00:35,990 OK. 11 00:00:36,240 --> 00:00:43,360 And here it says if half height divided by sample size as you can see here is greater than the equator. 12 00:00:43,590 --> 00:00:52,310 And we have an and logical operator here half Viets divided by in sample size is greater than required 13 00:00:52,310 --> 00:00:52,910 V. 14 00:00:53,400 --> 00:00:59,280 Then it's going to actually multiply the value of this in sample size by 2 and then it's going to assign 15 00:00:59,280 --> 00:01:02,040 that value again to this in sample size here. 16 00:01:02,040 --> 00:01:06,660 So this line of code is actually the same as this line of code that I am going to write here. 17 00:01:06,660 --> 00:01:11,860 In sample size assignment operator in sample size multiplied by two. 18 00:01:12,270 --> 00:01:12,940 OK. 19 00:01:13,140 --> 00:01:16,050 So let me ask you to comment on this line of code here. 20 00:01:16,550 --> 00:01:20,400 And as you can see here it's going to return in sample size for us. 21 00:01:20,430 --> 00:01:21,050 OK. 22 00:01:21,420 --> 00:01:24,860 So what this value would be the proper sample size for our image. 23 00:01:24,870 --> 00:01:25,270 Okay. 24 00:01:25,440 --> 00:01:28,160 And if this effort doesn't make any sense to you. 25 00:01:28,360 --> 00:01:28,580 OK. 26 00:01:28,590 --> 00:01:33,600 Don't forget you don't have to know whether these calculations but I know that this is going to actually 27 00:01:33,600 --> 00:01:36,920 give us the proper sample size that we can use on our image. 28 00:01:37,020 --> 00:01:43,290 OK so that application doesn't crash and we have another method in Android documentation as you can 29 00:01:43,290 --> 00:01:43,820 see here. 30 00:01:43,840 --> 00:01:44,680 We have this before. 31 00:01:44,700 --> 00:01:51,450 And it says to use this method first decode with in just decode bounds set to true past the options 32 00:01:51,450 --> 00:01:58,000 for loop and then decode again using the new in sample size value and in just D-CT band for us. 33 00:01:58,080 --> 00:02:00,600 OK so what is this. 34 00:02:00,630 --> 00:02:07,780 In just the code bounds we have it actually introduced us this introduced this variable to us here. 35 00:02:07,800 --> 00:02:14,220 As you can see sitting there in just a decode decode Pound's property to True. 36 00:02:14,880 --> 00:02:18,950 While decoding our memory allocation returning NULL. 37 00:02:18,990 --> 00:02:22,470 OK so it is not going to actually assign that image to the image view. 38 00:02:22,500 --> 00:02:27,790 If you actually assigned a value to do this are valuable for the bitmap object but setting out with 39 00:02:27,970 --> 00:02:34,860 and outside and out out my type so if this is the type of OUR image and here it says that we have this 40 00:02:34,860 --> 00:02:35,510 method here. 41 00:02:35,520 --> 00:02:36,110 OK. 42 00:02:36,150 --> 00:02:38,870 So let's actually copy this method here. 43 00:02:38,880 --> 00:02:39,640 OK. 44 00:02:40,050 --> 00:02:44,760 And let's actually go to our project and it's actually paste this method here and we have this method 45 00:02:44,760 --> 00:02:45,270 here. 46 00:02:45,450 --> 00:02:50,340 OK public static bitmap code sample to bitmap from the source. 47 00:02:50,380 --> 00:02:55,280 Ok so it is going to actually decode the images that are inside of our resources here. 48 00:02:55,290 --> 00:03:04,380 As you can see and here we have a reference to our resources as we have the rest ID of the ID of our 49 00:03:04,710 --> 00:03:05,470 resources. 50 00:03:05,580 --> 00:03:08,400 We have required reach and we have required it. 51 00:03:08,510 --> 00:03:09,200 OK. 52 00:03:09,660 --> 00:03:15,510 And here as you can see inside of this method first the code fit it in just de-code bands PETROU to 53 00:03:15,510 --> 00:03:16,720 check dimensions. 54 00:03:16,740 --> 00:03:23,340 So if you want to check the dimensions of your images set this value at this value but to true. 55 00:03:23,480 --> 00:03:24,270 OK. 56 00:03:24,310 --> 00:03:29,790 Final bitmap factory that options options new bitmapped fact that option. 57 00:03:29,790 --> 00:03:35,550 So you actually created an options object as you can see here but effectively that options and it said 58 00:03:35,830 --> 00:03:38,910 this in just the quarter bounce to true. 59 00:03:39,360 --> 00:03:43,400 It actually called this instance variable on this object. 60 00:03:43,470 --> 00:03:44,280 Okay. 61 00:03:44,280 --> 00:03:48,900 And then we have the speed map factor the class that decoder ring resource. 62 00:03:48,930 --> 00:03:54,630 So as you can see here it refers to this list of resources as you can see that we have as an argument. 63 00:03:54,630 --> 00:03:55,130 OK. 64 00:03:55,280 --> 00:04:01,470 Bitmapped fact is that the court that the court resource rests and we have this idea and we have all 65 00:04:01,680 --> 00:04:02,380 these options. 66 00:04:02,400 --> 00:04:03,110 OK. 67 00:04:03,520 --> 00:04:08,300 So on here as you can see it says calculate in sample size. 68 00:04:08,370 --> 00:04:10,830 So options that in sample size. 69 00:04:10,920 --> 00:04:15,930 Here it is actually calling the Smurfette that we actually pasted here. 70 00:04:16,020 --> 00:04:18,510 As you can see here calculate in sample size. 71 00:04:18,510 --> 00:04:22,050 So branchial it in sample size options. 72 00:04:22,050 --> 00:04:28,480 So as you can see the refers to the options object as you can see here required read and be quite tight. 73 00:04:28,620 --> 00:04:35,760 Okay so it is going to calculate the sample size according to our images for us and we have these options 74 00:04:35,790 --> 00:04:42,240 object that in just in just D-CT bounds two files so D-CT bitmap with sample size set. 75 00:04:42,240 --> 00:04:49,410 So as you can see here it says I said this these in sample size value to false so that we can actually 76 00:04:50,460 --> 00:04:52,930 output that image to the screen Okay. 77 00:04:53,130 --> 00:04:54,710 And here it is returned. 78 00:04:54,780 --> 00:05:00,490 We need to actually return an object of type bitmap as you can see here returned to our factory D-CT 79 00:05:00,560 --> 00:05:02,380 resource raise. 80 00:05:02,570 --> 00:05:08,180 So as you can see here it refers to these less resources less I.D. and options. 81 00:05:08,180 --> 00:05:08,580 OK. 82 00:05:08,630 --> 00:05:16,310 Now let's actually go back to our view method and here is actually typed in our EMG animal data sets. 83 00:05:16,340 --> 00:05:19,600 Image set image bitmap as you can see here. 84 00:05:20,000 --> 00:05:23,930 And here we need to actually put in an object of type bitmap OK. 85 00:05:24,110 --> 00:05:29,240 So here I'm just going to as you can see here it is Meffert as you can see it's going to return an object 86 00:05:29,270 --> 00:05:30,090 of type bitmap. 87 00:05:30,110 --> 00:05:32,130 So if we can i should call this Mfat here. 88 00:05:32,240 --> 00:05:34,610 As you can see in some of these practices. 89 00:05:34,610 --> 00:05:39,720 So the name of this method is the code sample sample bitmap from B source. 90 00:05:39,830 --> 00:05:46,240 So I can just type in de-code sampled bitmapped from the source and this is going to actually accept 91 00:05:46,300 --> 00:05:47,190 some arguments. 92 00:05:47,200 --> 00:05:47,860 OK. 93 00:05:47,890 --> 00:05:50,420 So the resources is context. 94 00:05:50,530 --> 00:05:50,910 OK. 95 00:05:50,920 --> 00:05:52,620 That's good resources. 96 00:05:52,930 --> 00:05:58,030 So it's going to actually get the resources of our project here we need to put into the idea of our 97 00:05:58,060 --> 00:06:02,610 images inside of our application inside our project. 98 00:06:02,620 --> 00:06:09,550 So the idea is animal images supposition as you can see here we have these animal images and we can 99 00:06:09,550 --> 00:06:18,180 actually refers to these ideas in these images by just typing animal images up position. 100 00:06:18,370 --> 00:06:21,750 So as you can see here you have these opposition as an argument. 101 00:06:21,820 --> 00:06:22,260 OK. 102 00:06:22,420 --> 00:06:27,930 So if we could just refer to the name of that position here and here let's actually create a newline 103 00:06:27,970 --> 00:06:30,140 character so that you can see these values better. 104 00:06:30,250 --> 00:06:37,690 And he had as he conceived of you need to actually specify the required and required height. 105 00:06:37,830 --> 00:06:38,230 OK. 106 00:06:38,320 --> 00:06:40,840 As you can see and so it is customized to this view. 107 00:06:40,840 --> 00:06:46,070 Here are the lay out feet and the length height of our image is 100. 108 00:06:46,090 --> 00:06:55,120 So here inside of these Prentice's I can assign the value of 50 comma 50 for the length width and height 109 00:06:56,090 --> 00:07:00,550 and now are actually on our project and see what happens. 110 00:07:00,550 --> 00:07:05,350 So as you can see here now our application is actually running on the simulator. 111 00:07:05,680 --> 00:07:11,190 And now you can see that we can actually scroll and we can see these images here. 112 00:07:11,290 --> 00:07:11,940 OK. 113 00:07:12,250 --> 00:07:15,230 And now our application actually doesn't crash. 114 00:07:15,340 --> 00:07:17,740 OK it's not actually taking too much memory. 115 00:07:18,160 --> 00:07:24,270 Ok but if your device has a very low memory it's going to actually take. 116 00:07:24,490 --> 00:07:30,340 And if the images are actually a high quality images they're going to take you taking too much memory 117 00:07:30,370 --> 00:07:33,040 and yet and then your application is going to actually crash. 118 00:07:33,040 --> 00:07:33,840 OK. 119 00:07:33,850 --> 00:07:39,310 So make sure that you always artist's your applications on an actual device. 120 00:07:39,310 --> 00:07:40,120 OK. 121 00:07:40,690 --> 00:07:46,270 And here if you want to actually your images if you want your images to take actually less memory you 122 00:07:46,270 --> 00:07:53,290 can actually assign for example a value for example first here for the layout for the required tweets 123 00:07:53,410 --> 00:07:55,290 and 40 for the required height. 124 00:07:55,630 --> 00:07:57,400 And this extra day on our project again. 125 00:07:57,430 --> 00:08:02,410 So as you can see our application is running on this emulator and you can see does that we have these 126 00:08:02,830 --> 00:08:03,780 images here. 127 00:08:03,940 --> 00:08:04,740 OK. 128 00:08:05,170 --> 00:08:12,700 And the quality of these images are a little bit low but you can see that our application is not actually 129 00:08:12,700 --> 00:08:13,900 taking too much memory. 130 00:08:13,900 --> 00:08:14,680 OK. 131 00:08:15,220 --> 00:08:17,630 So hopefully that makes sense. 132 00:08:17,680 --> 00:08:21,960 And now let's actually go back and say this customized this year that of a file. 133 00:08:22,120 --> 00:08:28,360 And if you have any questions about these concepts that I am actually teaching you in this tutorial 134 00:08:28,630 --> 00:08:33,670 please post the discussion in the course and then I'll do my best to answer all of your questions. 135 00:08:33,670 --> 00:08:36,610 But for now let's actually adding some more lines of code here. 136 00:08:36,760 --> 00:08:37,210 OK. 137 00:08:37,210 --> 00:08:41,720 And here where we actually created these string objects as you can see here. 138 00:08:41,920 --> 00:08:44,900 Let's actually create another string object here. 139 00:08:44,980 --> 00:08:45,450 OK. 140 00:08:45,650 --> 00:08:53,560 String and the name of this object is old RTX the animal name value. 141 00:08:54,050 --> 00:08:54,550 OK. 142 00:08:54,640 --> 00:09:03,420 Assignment operator and then I can just refer to the name of the animal name object that get text that 143 00:09:03,470 --> 00:09:04,540 to string. 144 00:09:05,110 --> 00:09:10,380 And here are let's actually add another vort here value on here. 145 00:09:10,520 --> 00:09:13,480 What do you call the name of these other objects. 146 00:09:13,480 --> 00:09:21,340 OK so we have an old x the animal name value we have an old text the animal power value and we have 147 00:09:21,580 --> 00:09:23,790 an old text the animals speak about. 148 00:09:23,800 --> 00:09:24,630 OK. 149 00:09:24,970 --> 00:09:28,060 So now are actually adding some more lines of code here. 150 00:09:28,060 --> 00:09:35,990 So now as you can see inside this emulator Now you can see that you need to assign the name of the animal 151 00:09:35,990 --> 00:09:38,170 and animal power and animal to speed. 152 00:09:38,170 --> 00:09:38,890 OK. 153 00:09:38,890 --> 00:09:45,990 So here I can just type in the animal name that takes all the animal name value. 154 00:09:46,250 --> 00:09:49,780 Plus as you can see we have an array here. 155 00:09:49,780 --> 00:09:50,620 Animal names. 156 00:09:50,620 --> 00:09:51,100 OK. 157 00:09:51,220 --> 00:09:53,540 So we can just revert to the name of this Aure. 158 00:09:53,800 --> 00:09:54,840 OK. 159 00:09:54,850 --> 00:09:58,970 And inside of this sniffer as you can see animal names. 160 00:09:59,230 --> 00:10:01,930 OK Suppe position. 161 00:10:02,050 --> 00:10:06,880 So as you can see we have this position as an argument of this gets you might get a few Meffert. 162 00:10:07,090 --> 00:10:07,360 OK.