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So now as you can see here these are the lines of code that I pasted here and now I'm going I try to



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explain to you what's going on here.



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Exactly.



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So now look at the Smurfit here the access modifier of this method is Puplick and this means that this



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method is going to be accessible from anywhere inside our project and the return type of this method



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is void.



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And this means that this method is going to return Nuffield the name of this method is reset.



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Annabelle Quince So what's the purpose of this method when this method is going to be called.



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Let me show you the emulator.



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So now for example let me actually click on back here so as you can see here this is our quiz and now



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I want to actually go inside these settings activity and here for example I want to change the background



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color of my quiz.



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So for example I want to change it to black and now as you can see here a post here appears and it says



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new changes are applied.



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And this means that are going to actually reset our animal quiz now when the user actually changes the



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settings of the application.



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You want to reset the animal always.



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And we want to start up our quiz from actually knew from start at.



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If I click on dispatch button here as you can see now that back uncolored is black and Ahlquist is now



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reset.



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So for example I can actually change the font for example to wander space them all as you can see here.



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Now the format is changed now again our quiz is reset.



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So when we actually change the actually the settings of our application we want to reset the quiz.



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So we set animal cookies and in line number two hundred and eight we have actually a variable of type



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asset manager.



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The name of our valuable is assets.



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So now let me show you the structure of the project.



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So just click on view to Windows and then click on Project.



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And now here at the right hand side you can see the structure of the project.



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And here as you can see we have a folder called assets.



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So if you want to actually access these assets for that because we have this tape underline animals



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for there we have this avoid Underland animals for that.



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And we have these phones for that right.



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If you want to access this assets folder in order to access these folders.



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So I actually created a variable of type asset manager and the name is assets.



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And then I put an assignment operator here and I called the Smurfette get activity dot get assets.



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So my favorite activity is going to give give us the activity and then by calling these get assets on



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that activity we can actually get the assets for that that we have inside our project.



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So now we have actually access this project to this actually for their assets.



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And now by actually getting to these assets are valuable we can actually get access at these assets.



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So it's actually a doubleclick undismayed activity fragment out of a file in order to make this area



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wider in low numbers.



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Two hundred and nine as you can see here are you referred to these all animals names list.



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So let's actually scroll to the top here.



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As you can see inside our class in line number 41 I actually declared this variable which is a type



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place that actually accepts values of types 3.



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And the name is all animals.



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And these are all animals names list.



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So this rally is going to hold all the animals names that we are going to have inside our quiz.



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And if you look at our uncreate view Meffert as you can see here in line number sixty eight I actually



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initialized this variable all animals all animals names least assignment operator new at a list.



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Right.



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So remember that I told you that list is actually an interface right.



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We cannot directly create an object of typeless.



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So because this is an interface and list actually has more Misfit's that other than an array of we actually



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created a list in order to actually take advantage of those extra effets that list interface has.



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And we actually initialized this list by using aerialist riced new Aurelia's.



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So we're going to have an array list of values but the data type is list so that we can actually access



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those extra efforts that this list has.



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You can actually looked at the documentation of this list interface in say the Java doc.



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So all animals names list right.



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So let's actually scroll down here inside our Meffert reset animal quiz on here.



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All animals names least that clear.



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So I call this Meffert that clear on this list.



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So what does this mean.



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So whenever I asked what I want to actually reset our animal quiz Are you want to actually delete all



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the animals names that in say the quiz and then you want to add the new Actually animal names.



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So for example here for example the first question is actually peacock.



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And now for example I want to change the Paglen color of the application to yellow and now are actually



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arccos is reset.



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And if I click on dispatch button here as you can see that the first animal is another animal of a sheep.



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Right.



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So this means that all animals names the list is actually cleared and all there are names that we had



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in the previous quiz is actually cleared.



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And now we have a new quiz with the new animals names.



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So that's really important that you put this method here.



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This line of code.



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And then if you have a try catch block here.



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So let's look at this troika's black and let's see what's going on here.



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So try and inside the curly braces of this type like here as you can see here we have some lines of



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code here.



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So we have actually a for loop.



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So for strange animal type and now as you can see here we are actually iterating over the values of



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these animal types in Queens.



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So let's actually look at inside our class at the top.



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Let's scroll to the top here.



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As you can see in line number 43 we actually declared this set here.



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So remember that I told you that sets are actually again our interfaces as you can see here.



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It is actually an interface but because sets can not have duplicated values we actually created a set



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in order to take advantage of that extra feature set that actually accepts values of types 3.



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Right.



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And now the name is animal types in coins.



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So now let me show you the emulator as you can see it actually to go inside settings activity and then



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here.



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Now for example you want to actually change the types of the animal as you can see here we have wild



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animals and we have tame animals and for example I want to have only tame animals inside my quiz or



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maybe even to have wild animals inside my quiz for example.



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Right.



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I can I should click on OK here and now as you can see here it says new changes are applied.



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And now if I click on this page button here as you can see now you are going to have only wild animals



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the images of only wild animals inside our quits.



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So that's why I actually created this variable here which is I've typeset.



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That actually is going to determine the types of the animal that we're going to have inside our quiz.



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So this set is responsible is responsible for actually holding the types of the animals that we have



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inside the quiz.



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So let's actually go back into Andrex studio and now let's actually scroll down here and let's go inside



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our research animalcules Meffert.



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So this is our method.



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And now I want to iterate over the values that that we have inside these animal types inquiries.



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So here let me show you an important point here that inside the uncreate view method we haven't still



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initialized these animal types inquiries actually said we are not going to initialize it here.



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Later you will see that we're going to initialize that set in another place inside our code.



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But for now just know that we haven't initialized these animal types in here yet.



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So let's actually go back inside our Reset animalcules here.



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So animal type is going to actually go iterate over the values of these animal types inquiries.



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So this follow up here is going to be executed for each value that we have inside these animal types



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inquiries.



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Right.



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And then for example for the first time this animal type is going to hold the value of the first value



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of the first index that we have inside these animal types inquiries.



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So animal type.



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And now let's actually go inside it for look and let's see what's going on here in line number two hundred



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and fifteen.



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We have an array of strength values right.



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And here as you can see the name is animal image paths in Queens.



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So here let me show you the structure of the project again.



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So click on the View tool windows and then click on project as you can see here.



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This is this is the structure of the project.



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And inside is as its folder as you can see here we have this folders tame underline anemones and we



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have also this fall that ovoid underline anemones.



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So this is actually our path.



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First we need to go inside these assets for there and then if we need to go inside this for example



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taint on the line animals animals and then for example I want to actually to access this you came on



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the line anemones dash Dolfin that Pinti for example if you want to actually access this image this



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image of the Dolfin first I need to go inside the assets folder and that I need to go inside this tape



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underlying animals fall there and then I can actually access this value this image on the line.



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Animals dash Dolfin that PND.



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So that's what I did here.



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So I actually created an array of string values and the name is animal image paths inquiries.



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So this is actually the path.



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Right.



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And then I put an assignment operator here and I actually further to these assets here in order to access



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the assets for that that we have inside our project.



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So assets at least as we can see here assets that list.



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So it's going to go inside these assets folder and then it's going to actually look at the folders that



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we have inside these assets for that right.



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And then I actually passed this value to this list animal type so by passing this value animal type



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this is actually the lasting value to this list here.



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It's going to actually give us the specific folder that we actually have inside our assets folder.



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So for example if the animal type is tame on the line Alamance then it's going to actually give us the



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least the images that we have inside this tape on the tent.



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Tame underlain animals folder.



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Right.



154

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So then it's going to try to assign those values as you can see here.



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Here we have an ad right in order to actually hold the paths of these images that we have inside our



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four folders.



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This on the animals or underlying animals.



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So when I call these assets folder I can actually access this assets for that and I call this list folder



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excuse me and then I call this list method on these assets in order to access the values that we have



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inside our assets folder.



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And then I pass the name of the folder that we have inside our assets folder.



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So for example the name of the folder or the animal type is tape on the animals right.



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Tame animals.



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When I pass this value to the Smurfette least then it's going to give us the values that we have inside



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our folder.



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So for example it's going to give us these images the path of these images that we have inside our project



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or for example if I pass the wild animals if that animal type is wild Underland animals then it's going



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to keep us the paths of these images right inside our project.



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And then it's going to assign those values to this animal image paths increase.



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And now as you can see here let me actually double click on this main activity flagmen that have a double



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tap here at the top in order to make this area wider.



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Again we have another follow up.



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We have actually an inner for loop.



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So for strange animal image path in Queens is going to actually either rate all of the values of this



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animal image paths which is actually this great.



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So I want to actually get each and every image path that we have inside our animal folders so for example



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now you can see inside the structure of the project.



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We have this tame underline anemones and we have also this wild animal or wild underlain animals.



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It depends on the use that which type of animals he or she wants to use in say the case.



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So for example I can actually choose only tame animals not wild animals right.



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In that case if you passed the actually the animal type which is actually tame animal as you can see



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here we're going to have only tame animals right.



183

00:13:31,330 --> 00:13:36,610

So it's going to actually give us the least of these images of these tame animals here.



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And then it's going to assign that value actually assigning those values to these animal image paths



185

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increase which is actually an array of string values.



186

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And then here we are going to either rate over those paths over those values those image paths that



187

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we have inside these for example tame underline animals and we want to actually execute this follow



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00:13:55,670 --> 00:14:03,370

up here for each and every value for each and every path that we have inside this list right inside



189

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the same underlying folder.



190

00:14:05,260 --> 00:14:13,000

So strange animal image paff inquiries iterate over the animal image paths the inquiries and as you



191

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can see here all animals names list.



192

00:14:15,850 --> 00:14:21,790

So now let me actually double click on this tab here main activity fragment or Java tab and here I actually



193

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first to the name of this list.



194

00:14:23,620 --> 00:14:25,480

All animals names list.



195

00:14:25,480 --> 00:14:32,380

So as you can see here in line number two on the night I actually cleared all the values first and now



196

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I want to add other values to this actually.



197

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All animals names list.



198

00:14:37,210 --> 00:14:45,730

So all animals names and they start at al-Ahmad image Paphian quis as you can see here dots replace



199

00:14:46,150 --> 00:14:50,350

dot P and G with actually an empty value.



200

00:14:50,740 --> 00:14:54,610

I want to actually start peon Jeevan I want to show this value to the user.



201

00:14:54,610 --> 00:14:59,400

So for example let me ask you to show you the emulator as you can see we have no doubt Pendu here right.



202

00:14:59,410 --> 00:15:03,150

As you can see people Pinguin fish flappy bird and goat.



203

00:15:03,280 --> 00:15:07,660

We don't have paint Pinguin that P and G or fish that be being G or flappy bird.



204

00:15:07,660 --> 00:15:14,230

That means you all go to the TNG you actually deleted the P.A. part of these images of these image names.



205

00:15:14,290 --> 00:15:18,920

I want to show you actually when I want to show these values to the user.



206

00:15:19,000 --> 00:15:21,850

So it is very important that you put this in I've got here.



207

00:15:22,240 --> 00:15:28,210

All animals names start at and it's going I should add all these image paths as you can see here all



208

00:15:28,210 --> 00:15:28,690

these images.



209

00:15:28,700 --> 00:15:32,220

It's going to is going to be added to these animals named list here.



210

00:15:32,470 --> 00:15:35,690

But the piano here is going to be deleted.



211

00:15:36,220 --> 00:15:37,320

Right.



212

00:15:37,720 --> 00:15:45,820

And now and we also created this Smurfette get the exact animal name effect as you can see here in order



213

00:15:45,820 --> 00:15:54,240

to actually delete that part of the image that has for example an underline.



214

00:15:54,370 --> 00:15:54,910

OK.



215

00:15:55,210 --> 00:16:00,790

So we use these methods in order to actually delete the parts of the name of the image that we don't



216

00:16:00,790 --> 00:16:02,080

want to show to the user.



217

00:16:02,080 --> 00:16:04,730

So now it's actually double click on this tab here.



218

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Activity fragment that Java.



219

00:16:06,950 --> 00:16:11,530

And now let's actually go again inside this reset animal quis Mefford.



220

00:16:11,570 --> 00:16:15,470

So as you can see here we have also the church statement.



221

00:16:15,470 --> 00:16:19,630

So this caterpillar here is going to actually catch the exceptions that may occur.



222

00:16:19,870 --> 00:16:24,550

And we want to actually access our image paths inside our project.



223

00:16:24,620 --> 00:16:25,290

Right.



224

00:16:25,370 --> 00:16:31,640

So we may actually access around image or are the Android device may not be able to actually access



225

00:16:31,640 --> 00:16:34,090

the images that we have inside the project.



226

00:16:34,280 --> 00:16:41,660

So in that case we have actually a catch block which is going to a church that exception and we're going



227

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to actually plug our message through that actually Lockart.



228

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So log that eat and that is animal Cooley's and the message is error.



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And here we're going to actually output the real error message to they're actually locked.



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So here are a list like let's actually look at these other lines of code here.