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Hi everyone in this theater you are really going to go ahead and create another Android application.



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So just click on this.



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Start in your Android studio project and then for the name of the application just type in here app



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57 and then click on next and here choose API 16 Android 4.1 Jelly Bean for the minimum SDK and then



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click on next and here choose empty activity next.



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And here don't change anything.



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And then they can finish.



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So as you can see here our project is actually created.



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So let's actually go inside this red folder and then look at the trendies layouts directory.



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And here as you can see we have this activity Underland made that example.



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So double click on it.



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So here is our lay out.



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So as you can see here that there is a problem with the app.



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As you can see here missing Stites.



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So here I just need to click on this app from here and it choose this material light.



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And here I just need to select these materials that are light that dot dot action.



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OK.



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Or I can actually use this material that like it's OK but I prefer this one.



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And then click click on OK.



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So here is the thing that I want to use for my application.



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So I just need to select this hello world text view here and then press on delete key on my keyboard.



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So now I want to design the user interface of my application.



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So first of all I just need to write a linear layout vertical into this relatively out here.



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So I just need to select this linearly as vertical here.



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That is actually inside of this little swirl there.



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And then here I just need to put it at the center of these relatively out here and then I just need



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to drag some a large stakes views into this linearly at vertical.



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So inside these widgets folder as you can see we have these text views here.



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So just select this large view and then put it at the center of this linearly or vertical.



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And now for the layout of this large text view I just need to assign the value match parent.



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So as you can see here inside these properties section as you can see I just need to change this layout



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to be its value to match President.



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OK.



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And DoubleClick on this text view.



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Here is the text of the state's view.



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And for the ID just type in here takes the name and then person enter key on your keyboard.



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So that's actually right.



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Another large takes you into these linearly or vertical.



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So just select these large you here and put it at the center of this in any nearly vertical and below



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these takes you here.



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OK.



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And for the lay out we assign the value match parent here and as you can see and double click on these



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text view here and deletes the text that this takes for you and for the ID just type in here takes the



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e-mail and then press on Enter key on your keyboard.



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So now let's actually write another large takes into this linearly at vertical here.



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So just select this large this here and track it into these linearly vertical and put it below.



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These are text here.



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OK.



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So just put it at the center of this linearly vertical and then for that out we assign the value match



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parent here as you can see and double click on these takes you here to take.



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This is the text that this takes for you and for the idea just typing here takes the user name and then



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person entelechy on your keyboard.



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So let's actually try another large takes you into this linearly as vertical.



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So he has just selected the large text view and put it's below the stakes here.



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And for the layout which assign the value match Pallant as you can see here double double clicking on



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the view here.



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This is the takes of the stakes for you and for the ID just type in here takes the password and then



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our present Enter key on your keyboard.



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OK so now let's actually drag our button into this linearly at vertical So as you can see here in this



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vedettes Well there we have this user interface components.



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I just need to select this button here and I just need to put it below this.



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Takes and insight is linearly or vertical at the center.



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OK.



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At the center of this linearly as vertical and again for the lay at which this button assigned the value



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match parent and double click on the button here for then a text just saying the value or move to two



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second activity and for the ID just type in here PTEN move and then press enter key on your keyboard.



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So now let's actually go inside our main activity file here.



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And now let's actually declare some user interface components here.



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So just to create some text view objects.



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So I just need to type in here take that view and then the name of the first user interface component



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is going to be the name.



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OK come on.



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So here you can actually declare some objects of the same type of the same type in one line.



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So here I just put this text view up here the name of this takes you class and this is going to be the



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name of the first object text the name the name of the second object is going to be Tillich's the email.



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As you can see here inside our activity underline mainit exam and here we have this dx the name the



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email the X the user name and takes the password.



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So as you can see here all of this for our user interface components of type text view.



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So I just I can actually declare these objects in one line or KTXA the name to the e-mail the X the



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username.



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OK.



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Come on anti-X the password



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and here I just need to put us a semicolon at the end of my statement and insights and create Meffert



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as you can see I can just stay Pontiac's the RTX the name assignment operator and here I just want to



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instantiate these objects.



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OK.



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So in line 9 as you can see I'm just declaring these objects that are of type text view.



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And here inside this uncreate Meffert are you able to instantiate these objects.



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So takes the name assignment operator.



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And here I just see to cast this object to a text view object find view by I-T or that Id thought TXI



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the name.



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And then I need to put a semicolon at the end of my statement.



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And here again I can't just dive into the e-mail assignment operator takes view find view by id our



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data ID that takes the email and then I need to put a semicolon at the end of my statement.



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And here again I can refer to the name of this object to the username so the user name assignment operator.



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And then here I need to cast this object to a text view object find view by ID.



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Or that idea that takes the user name and the.



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And here I need to put a semicolon at the end of my statement takes the password as you can see here.



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Assignment operator and here I need to cast this object where it takes your object find view about ID



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are already 30 x the password and then I need to put a semicolon at the end of my statement.



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So here are let's actually declare and create an object of take button.



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So here I can just say pain.



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So if I don't want to create an object of a button I can just type in find view by ID or thought Id



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that PTEN move right.



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So here as you can see in line 24 I'm just referring to the spot into the idea of the spotting that



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I actually put that they actually created inside this activity here inside this activity and underline



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don't mean that exam and I have this button right.



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And the idea is between then move.



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So inside is main activity class.



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I don't want to actually create an object of a button and assign this value of another variable.



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I just referred in here just three freighting to the name of that button with the idea of that button



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find view by ID order ID that media and move.



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And here I can actually call the unclick listener here and click listener Excuse me said Uncle listener.



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So here I can't just call the set Uncle listen and hear the Smurfette on this object as you can see



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here.



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So Uncle listener knew.



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So here I can actually create an anonymous class.



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And you an Uncle listener.



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And as you can see here it actually created these lines of code for me as you can see.



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And we have actually an inner class an anonymous inner class that is actually implementing a view that



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actually listen to interface and as it results in it needs to actually implement the Smurfit enclave



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here.



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As you can see in say these angry men for they can actually put my logic here so I can actually type



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the intent intent assignment operator new intent.



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So for the first argument I need to put the context the context is going to be this activity.



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So main activity that this and the second argument is going to be that class that you want to transfer



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to.



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So you want to actually move from this class to the second activity class.



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So here I can just type in search and we didn't actually create this second activity class so we're



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going to create it in a moment.



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Second activity that class and here I need to put a semi-colon at the end of my statement.



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So here are we need to actually create this second activity class.



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So in our project structure I just need to selectees our package here.



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This package that this class main activity is inside there.



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OK.



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And right click on needs new and this time I want to actually create an activity.



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OK.



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So I want to create the jobs class and the xml file at the same time.



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So activity and here choose MTI activity.



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So for the name of the activity activity just open here seargent activity.



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And as you can see here it's going to create this class activity name and it's going to generate a layout



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file for me lay out name is going to be activity underline second and this activity is not going to



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be the larger activity.



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The long term activity is going to be mean active with your kids want to check this checkbox here and



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it can actually put this class inside this package as you can see here.



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So I just need to click and finish here.



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So now the second activity is created for me and this if it is actually automatically generated for



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me said content.



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You are totally out of that activity second.



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So inside this layer directory we can see that this activity Underland second that is similar.



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So now let's actually go inside the main activity that of our file here.