Android Tutorial & Lessons 6: Getting Familiar with Java (intro)

[iraklinho11]

I want to know why we have to name the audio folder exactly 'raw' ?

[Hathspider]

What are the dimensions for a wallpaper?

[yousko]

TravisIsAwesome. when i make a million bucks from my app watching your tutorials for free. i will be sure to contact you with gifts and joy =D

[FavoriteFreshman]

It goes 1 all they way to six

[dgentry138]

First of all, I love your videos. I have two questions. What references do you suggest as I continue to try to improve my programming. Any books or certain websites?

Also, I am having a hard time understanding where all Eclipse stores file information for resources. For instance, I created a splash screen and named it splash.xcf by accident. I renamed to splash.png, but it looks as if it is still looking for the original file. Also, the resource chooser still shows files I've deleted??

[MarchingBoxFive]

"And you have to type TravisIsAwesome, or else it won't work... so make sure you do that."

[FPEvideos]

Quick Question: Why did you chooses to call your sounds directory 'raw'? I would have thought to call it 'sound' or 'audio'.

[zero0hero1]

hey man umm i need help with the java text editing idk whats wrong but it dont allow me to edit any thing thats in the mymain.java what to do ?

[StonedRhino1990]

I typed "TravisIsAwesome"

[envyhunterHD]

where do you get your sound effects

[oseloth]

Watching your tutorial and it is probably the best one on the net. Thank you. Please continue with your work. This us great. Thanks

[Olliix1]

hi i have an error which says, conversion to dalvik format failed with error 1, do you know how to fix that?

[bWWd0]

"splash screen" that thing which irritates EVERYONE when running apps, doesnt look pro at all.Just make "about" instead inside app.

[aleafonthewind117]

"Java for Gangsters"

(C) 2011 Travis -- CornBoyz Development

[Mrgreatestfreakout]

lol it's funny Travis pronounce boolean as bolen

[OyemeLife]

what up my gangsters!!!!!! :)))))))))

[zuriel714]

error Travis is not awsome Help :(

[MrStewdaddy]

Hey...at the end of lesson 5 you had mentioned trying to create an Icon for the app, kinda like our "homework"(you may show this in a later tutorial), my mind is just kinda stuck on learning how to do that

[perfuzz]

Travis might be awesome, but your average JACK-IN-OFFICE would complaint about how you brake the code conventions. ;-)

Great tut!

[kmel77083]

I have never taken Java before so i'm at a disadvantage here I think, but I am having an error : Multiple markers at this line - R cannot be resolved to a variable - Line breakpoint:mymain [line: 11] - onCreate(Bundle)

Any idea of what this means? Is there a quick fix to this?

[n91jain]

Travis Is Awesome :)

[Catarouxx]

Respect my Gangsta! Loving these videos i hope the series doesn't stop. Thank you!

[garayBjj]

Like your tutorials but I teaching Java while teaching Android sort of kills it. If you are going to try learning Android i think you should know the basics of Java at least.

[Thewildwolf79]

WASSUP MA GANGSTERS :D

[pedrouan]

Thank you for the perfect works!!!

[pedrouan]

Hahahaha it was funny greting

[schkilitta]

Thank U so much!! The videos are really very helpful !!

[vineetksirohi]

I am so grateful to you

[vineetksirohi]

I am so grateful to you

[amitbikrath4uk]

lol :D Travis is awesome..u have to type Travis is awesome ..or else it wont work he he :)

[xp8ntballkid309x]

im getting the same R cannot be resolved error after i tried making a new xml layout

[haidangkieu1]

thanks alot man. Your video really help a lot, keep up the good work.

[haidangkieu1]

what up man. After i create the new xml, my setContentView(R.layout.splash­); say "splash cannot be resolved or is not a field". Could you tell me how that happen?

[CornboyzAndroid]

@haidangkieu1 what up buddy? most likely it is one of two problems. First check all the items in the "res" folder, (drawable, layout, etc) and make sure all the names are lower case. if you have a layout called "Layout1.xml" it will mess up your program, but it will fix it once you change the name to "layout1.xml" and clean the package. The other problem, which is probably the problem, is that you may be using keyboard shortcuts to add you imports automatically...

[CornboyzAndroid]

@haidangkieu1 and sometimes that will add the "import android.R" import. so scroll to the top of you java classes and check the imports, if you see "import android.R" delete it and clean the project.

Hope that helps

[TheBaiga]

@haidangkieu1 i'm facing the same problem, cant seem to find out why ?

[haidangkieu1]

@TheBaiga Hey wats up i think you should check your "myMain.java" and if you have ' import.android.R' then just delete that and save.If it dosen't do anything then check your resource file to see all content name is lower case. hope that help.

[TheBaiga]

@haidangkieu1 still not working at my side :S :(

[haidangkieu1]

@TheBaiga Dont get frustrated. All i can say right now is that you should go back and check everything the spelling the case. Or you can message cornboy, I'm sorry im no help. I wish i can see your code and check to see what's missing, but i think the problem maybe in Manifest (android:name).

[TheBaiga]

@haidangkieu1 No bro, not getting frustrated, i really wanted to know how things work actually :(

[TheBaiga]

@haidangkieu1 Is there any other URL or site where i can get same kind tutorials ? can you suggest me some ?

[haidangkieu1]

@TheBaiga Sorry baiga i dont know anyother URL learn android programing

[TheBaiga]

@haidangkieu1 Thanks a lot for leading me this much far. i really appreciate your help :)

[MyRsIrl]

Help! My emulator screen is too large! I can't see everything! (30-40% of the screen)

[CornboyzAndroid]

@MyRsIrl go to window >android SDK AVD manager> then click on the emulator you want to start up and click the checkbox "scale to display to real size" and you can mess around with the size there. then just have the emulator running in the background, so you don't have to let it load every time you run your app

[MyRsIrl]

@CornboyzAndroid It still doesn't load up, if I resize it.

[CornboyzAndroid]

@MyRsIrl what do you mean it doesn't load up? it takes like 3 minutes for the emulator to start up, then you just keep it running, and every time you run as an android application it will launch on that emulator, so always want to keep the emulator running if you dont want to wait for it to load every time

[MyRsIrl]

@CornboyzAndroid Thanks! too bad I can't sub twice.

[Computerwizgeek920]

@MyRsIrl just get an android phone set it to debuggable and plug it into the computer it will run right on the droid if you don't know how then go to developer.android.com/guide/de­veloping/device.html

[HRayan]

I LOLed at the "gangsta" bit...i am not even remotely close to being as cool as one... :)

[ekojk1242]

OMG! I just shat my pants cuz your previous videos were so boring and quiet and then in this one, .........WHUTS UP MY GANGSTAS! IM LIKE HOLLY SHIT!

[CornboyzAndroid]

@ekojk1242 hah, yea they slowly get a little better through out the series (not a ton), but the first 8 tutorials or so, I was sick as a dog, but definitely thanks for the tips!

[TheMiTy]

THANKS gangsta!!!

[2ivenhoe]

Good job Travis.

The keyword "extends" means that the class myMain inherits from the class Activity. The class Activity have a function named "onCreate", so because myMain inherits from Activity we can overwrite this function in the myMain.