Learn how to create android applications / modifications, any recommendations? - Android TV General

Hello,
A short time ago I bought tecnology android and I've realized that I love to make changes, delete, re-program, install Rom, etc..
I always liked this programming, the only limitation I had was my financial situation, but it does not allow a limitation, short steps going forward.
For this reason I come to ask those who already know how to program, where I can find good tutorials, PDF materials, sources serve me to learn programming this wonder?
I would also like you to tell me how hard it can be. I already I have some knowledge of codes, mainly web design, HTML, CSS and some PHP.
Since today I get to work .
Greetings all,
Diego
PD: Translated by Google

help you
Argdie said:
Hello,
A short time ago I bought tecnology android and I've realized that I love to make changes, delete, re-program, install Rom, etc..
I always liked this programming, the only limitation I had was my financial situation, but it does not allow a limitation, short steps going forward.
For this reason I come to ask those who already know how to program, where I can find good tutorials, PDF materials, sources serve me to learn programming this wonder?
I would also like you to tell me how hard it can be. I already I have some knowledge of codes, mainly web design, HTML, CSS and some PHP.
Since today I get to work .
Greetings all,
Diego
PD: Translated by Google
Click to expand...
Click to collapse
you can get some open source cede to learn, and also learn to develop some simple app demo. hope you have a good start

step by step, u can improve a lot
Argdie said:
Hello,
A short time ago I bought tecnology android and I've realized that I love to make changes, delete, re-program, install Rom, etc..
I always liked this programming, the only limitation I had was my financial situation, but it does not allow a limitation, short steps going forward.
For this reason I come to ask those who already know how to program, where I can find good tutorials, PDF materials, sources serve me to learn programming this wonder?
I would also like you to tell me how hard it can be. I already I have some knowledge of codes, mainly web design, HTML, CSS and some PHP.
Since today I get to work .
Greetings all,
Diego
PD: Translated by Google
Click to expand...
Click to collapse
---------- Post added at 11:23 PM ---------- Previous post was at 11:22 PM ----------
maybe i could teach u something.
Argdie said:
Hello,
A short time ago I bought tecnology android and I've realized that I love to make changes, delete, re-program, install Rom, etc..
I always liked this programming, the only limitation I had was my financial situation, but it does not allow a limitation, short steps going forward.
For this reason I come to ask those who already know how to program, where I can find good tutorials, PDF materials, sources serve me to learn programming this wonder?
I would also like you to tell me how hard it can be. I already I have some knowledge of codes, mainly web design, HTML, CSS and some PHP.
Since today I get to work .
Greetings all,
Diego
PD: Translated by Google
Click to expand...
Click to collapse

Have you tried looking at the official web site for Android developers from google? I would post a link, but I still don't have enough reputation to post links. You should be able to find it by just googling.
In any case, you could start with Coursera or Udacity. For Coursera, you may have to wait until a class starts. But for either of them, note that you don't need to pay any money to take their classes. On Coursera, click on the title of each course to avoid the paywall. On Udacity, click on the blue buttons to "get free access to the materials", and don't bother with the "nanodegree" or the "free trial", that's where they ask for your credit card number.
On Udacity, it goes from the extremely easy to the extremely hard. Their beginner materials may be too easy for you. And their intermediate materials usually starts getting too hard for most people at around week 4. If that happens to you, go to the Coursera web site.

A few steps to start:
1. Google: android development
2. Install Android Studio
3. Set up a GIT repository: hint: google GitStack
4. Create a new app using Android studio template: hello world.
5. Start adding features to it.
It's not as hard as it looks .

Related

Learning c++

Hello
Just wanted to let you know after viewing apps and games people have made i have took it upon myself to start learning c++. I hope i will be able to provide you with some cool apps and games in the near future. I am a fast learner when it comes to things like this so there might not be a long wait.
Anyway i just posted this message just to say to the other downloaders if they have spare time, get learning too.
Thanks for all your free software.
Well not bad idea.
Where did u start ?
Some links maybe ?
Visit www.freeprogrammingresources.com its the best for beginners
I was also considering this I have a city & guilds in c++ but It was quite some time ago and I cant remember much but I know I could pick it up again very quickly.its just finding the time.
A question for developers what sort of depth do you need to goto in c++ I got to level 3 with the city & guilds
why not learning c#?
i think it's easyer and nicer ^^
King-Malkav said:
why not learning c#?
i think it's easyer and nicer ^^
Click to expand...
Click to collapse
whats the difference
in my opinion, c# is smarter. you need lees code for the same thinks (for Windows, Web Applikations or Windows Mobile Applikations).
It's easy to learn.
Hi !
If you really want to learn programming, I can only recommend you "cygwin" compiler and "eclipse" as a work environment. Both are free and both are available for Linux and for Windows!
There are many sites out there which offer alooot beginner tutorials hello world etc ! But honestly - go to the next library and buy a C++ beginner book. You will definitely have to read a lot to understand what your actually are doing. Just by copying tutorial programs you will never learn whats behind it or be able to create your own application. I once programmed the SAME cd achieving tool 3 times in a row, because after finishing it first time it was so bloated, that when my Professor looked at it and asked me about sense of some passage there i had to answer "I dunno but after playing long enough with it, it suddenly worked ". It's mostly about doing the same stuff again and again until you really understand your mistakes. Or until your lucky like i was sometimes
I can't advice you some good book cause those i found useful are all German. Look for a thin one for the beginning, read some passages and take the book which feels most comfortable and easy to you!
My personal advice, don't take it as to easy. You will definitely have to invest a lot of time, but if u don't give up you sure can do it!
Here some links:
http://www.cygwin.com/
http://www.eclipse.org/
Luckily everything is for free and no tool will make a better programmer out of you. My first Programm i ever wrote was created in windows editor and compiled in command prompt.
Thanks for your help Nilfik
doinbox how you getting on, which language did you start to learn in the end, I havent even looked into it yet lol

So I want to learn to develop for Android...

This is me: college kid, no developing experience whatsoever (unless you could a basic HTML course in like 9th grade... lol), relatively intelligent, interested in technology.
What do I need to learn?
I found a "java 101" article to read here: Learn Java from the ground up - JavaWorld
Is android just Java or is there any other kind of language..? I've heard something about C++? or is that part of Java?
As you can tell, I'm a noob lol.
Then I read that I need Eclipse (what does that do again?), which one should I get (I'm on a Mac): Eclipse IDE for Java EE Developers, Eclipse IDE for Java Developers, or Eclipse Classic 3.6?
Is this a bad idea considering I know nothing? Like am in way over my head?
Any other ideas or links anyone can share?
I made this same post on a different forum, and someone told me that XDA was a great place to learn programming and such.
Any help is appreciated. Thanks!
Oh and can I program without a problem from OS X or should I use bootcamp and do it all under Windows 7?
This is me: high school kid who is a noob Java programmer.
1. Learn Java. That's what Android apps are written in (I think).
2. C++ is a different language. Don't think it's of use here.
3. Eclipse for Java Dev.
4. Embrace your Mac.
I'm in much the same boat you are. I went and grabbed a book called, "Android Application Development" from my local book store tonight (oreilly.com). I am not endorsing the book yet as I'm only a few pages in and it was the only Android book at the store. There was not a single book on Java. I'll be turning to the many many web sites available for that until I get a solid recommendation for a book from someone.
The only thing I've ever done that's even remotely close is built SQL databases, reports and queries which I now manage as a cardiac researcher. I have no classes or anything else useful other than I know my way around PCs enough to build them and install my own OS's.
The advice in the book for the dev environment is:
1. JDK 5 or 6 and the book says that OSX comes with 5.
2. Eclipse IDE for Java Developers for your OS. Get the latest version (which defaulted as such for me for Vista 64).
3. The Android SDK.
After the above, there are some steps to take a look at on the Android SDK site. Follow those and read it all. I'm pretty sure I'm just a person of average intelligence and I think I have a handle on getting to where I can start working and the Hello World bit seems to make sense right now. We'll see how things go as I learn more of the Java syntax.
Good luck!
I would love any advice on sites/books for a non-programmer to start to get a grip on Java and creating an Android app in general. I have some plans for some specific medical uses for my job and I have always been interested in writing programs. Seems like a great time to start.
For Java, a good place to start (other than the Sun site itself) is JavaRanch. I'm too new to post links, but the URL is easy to figure out, and a quick search would turn it up as well. The site has lots of information, links to book reviews for Java, forums and so on. It was a good resource when I was studying Java in college!
Good luck!
nebulosity said:
For Java, a good place to start (other than the Sun site itself) is JavaRanch. I'm too new to post links, but the URL is easy to figure out, and a quick search would turn it up as well. The site has lots of information, links to book reviews for Java, forums and so on. It was a good resource when I was studying Java in college!
Good luck!
Click to expand...
Click to collapse
Thanks much! I found an Intro to Programming with Java class at the local community college here but it doesn't start until Sept. =/ That site looks good though, hopefully I can find a book that seems to fit.
(edit: the following assumes you've more or less mastered Java already; I really don't know what to recommend for someone who's trying to learn Java AND Android programming simultaneously. I suspect part of the reason for the lack of books for THAT niche is due to the fact that it's more or less impossible to take any programming class in college that doesn't either involve Java or have it as a non-negotiable prerequisite, even if Java per se isn't directly relevant. It's just part of the baseline cultural background noise).
If you buy nothing else, buy "Beginning Android 2" by Mark Murphy. If you're not totally broke, buy "Pro Android 2" by Sayed Hashimi while you're at it. Don't try to skip the first and go straight to the second... there's a lot of medium-level stuff that's covered thoroughly in "Beginning" that's barely touched upon in "Pro".
Those two books aren't great if you like to jump around and learn things in random order as need arises, but they're probably the gold standard right now for books that comprehensively teach Android Programming in a sensible order from start to finish.
"Professional Android 2 Application Development" by Reto Meier is a great complement to those books, because it IS more of a "jump around and grab important details as the need to learn them arises" book. I refer to all three on a regular basis.
"Hello, Android" is one of those books that you'll probably never look at again two weeks after you first start reading it... but if cash isn't really a problem, it's a nice tutorial for brand new Android developers.
Content-wise, the pdf commonsware.com books by Mark Murphy (yeah, the same Mark Murphy who wrote the Apress book) are probably the best of all, because they literally ARE updated regularly as typos & bugs get found (every book has 'em, few books ever usefully fix 'em) and new versions of Android get released. The problem is, unless you have an ebook reader, let's be honest... ebooks kind of suck. Sometimes, a real book is nice to have. So, I'd say Murphy's books kind of break new ground between online articles and real books... they go into a lot more depth, more coherently, than any one online source of info about Android programming... but unfortunately, because they're ebooks, they're about as pleasant to casually read as those same online articles.
18 months from now, when Android tablets with 1280x720(*) displays or better are common and relatively cheap, eBooks are going to be the norm for Android books going forward, because THEN they'll let you have the best of all worlds -- the coherent editing and comprehensive content of "real" books, the up-to-date accuracy of the best online sources of info, and a reading experience that doesn't kind of suck. Five years from now (when the eBook experience has finally become civilized), I'll be shocked if programming books even exist anymore in printed form, aside from maybe books like "${Language}: How to Program" that deal with topics that don't really change radically from month to month and are more or less universal as college textbooks. Programming and system administration are the kind of topics that are really too volatile for paper books, and for they most part they've ALWAYS been... there just hasn't really been a civilized alternative to them. IMHO, Android tablets will be what finally make it a civilized experience, because for the first time normal people (meaning developers who don't work for huge corporate entities like Amazon and Sony) will be able to develop ebook apps with their own UI experiments. Right now, all we have are devices optimized for reading mass-market top-20 fiction... devices that largely suck for the specific task of reading (and referring to) programming books (where you generally flip around a lot, and 700ms latency every time you change a page will drive you insane in 3 minutes).
So, in summary, here's my recommended buying order:
If cash is abundant and you want a nice intro: Hello, Android (latest edition)
Absolutely mandatory: Beginning Android 2
Equally mandatory, but maybe a few weeks later: Pro Android 2
then, it's a toss-up between a commonsware "Warescription" for Murphy's other books (which gives you access to the latest and greatest versions of them for a year, plus perpetual ownership the last copies you downloaded before the year ran out) and Meier's book (if you really hate ebooks). Personally, I'd recommend the Warescription AND Meier's book
(*)1280x720 is the rock-bottom minimum resolution viable for comfortably reading an O'Reilly-Manning-sized book in pdf form two pages at a time. 800x480 is just a hair below the resolution you really need to comfortably read ONE O'Reilly-Manning sized page at a time.
bitbang3r said:
<snip>
18 months from now, when Android tablets with 1280x720(*) displays or better are common and relatively cheap, <snip>
So, in summary, here's my recommended buying order:
If cash is abundant and you want a nice intro: Hello, Android (latest edition)
Absolutely mandatory: Beginning Android 2
Equally mandatory, but maybe a few weeks later: Pro Android 2
then, it's a toss-up between a commonsware "Warescription" for Murphy's other books (which gives you access to the latest and greatest versions of them for a year, plus perpetual ownership the last copies you downloaded before the year ran out) and Meier's book (if you really hate ebooks). Personally, I'd recommend the Warescription AND Meier's book
(*)1280x720 is the rock-bottom minimum resolution viable for comfortably reading an O'Reilly-Manning-sized book in pdf form two pages at a time. 800x480 is just a hair below the resolution you really need to comfortably read ONE O'Reilly-Manning sized page at a time.
Click to expand...
Click to collapse
The bolded above is the exact reason I am learning. I need to be able to write my own app for the upcoming tablets. We are planning to move a lot of document work to tablets over the next few years in the medical industry and the existing product lines are hilariously and prohibitively expensive. Since I already work extensively with our privacy laws and and regulations, I'm fairly sure that I can get a working solution for us over the next three years instead of investing millions of dollars in proprietary systems.
Thank you SO much for this advice. I'm ordering Beginning Android tonight and will pick up the other suggestions about halfway through the first book. My class will start in September. If you happen to have any other suggestions that might ease my way into programming concepts in general I would also appreciate those. Again, thanks a ton for the great advice.
Yeah i hear ya man. I took Java Programming in my senior year of highschool and got an A in it. So i know im capable for doing android, but im still finding my way around. hopefully one day i can actually do it! I hope!
bitbang3r said:
(edit: the following assumes you've more or less mastered Java already; I really don't know what to recommend for someone who's trying to learn Java AND Android programming simultaneously. I suspect part of the reason for the lack of books for THAT niche is due to the fact that it's more or less impossible to take any programming class in college that doesn't either involve Java or have it as a non-negotiable prerequisite, even if Java per se isn't directly relevant. It's just part of the baseline cultural background noise).
If you buy nothing else, buy "Beginning Android 2" by Mark Murphy. If you're not totally broke, buy "Pro Android 2" by Sayed Hashimi while you're at it. Don't try to skip the first and go straight to the second... there's a lot of medium-level stuff that's covered thoroughly in "Beginning" that's barely touched upon in "Pro".
Those two books aren't great if you like to jump around and learn things in random order as need arises, but they're probably the gold standard right now for books that comprehensively teach Android Programming in a sensible order from start to finish.
"Professional Android 2 Application Development" by Reto Meier is a great complement to those books, because it IS more of a "jump around and grab important details as the need to learn them arises" book. I refer to all three on a regular basis.
"Hello, Android" is one of those books that you'll probably never look at again two weeks after you first start reading it... but if cash isn't really a problem, it's a nice tutorial for brand new Android developers.
Content-wise, the pdf commonsware.com books by Mark Murphy (yeah, the same Mark Murphy who wrote the Apress book) are probably the best of all, because they literally ARE updated regularly as typos & bugs get found (every book has 'em, few books ever usefully fix 'em) and new versions of Android get released. The problem is, unless you have an ebook reader, let's be honest... ebooks kind of suck. Sometimes, a real book is nice to have. So, I'd say Murphy's books kind of break new ground between online articles and real books... they go into a lot more depth, more coherently, than any one online source of info about Android programming... but unfortunately, because they're ebooks, they're about as pleasant to casually read as those same online articles.
18 months from now, when Android tablets with 1280x720(*) displays or better are common and relatively cheap, eBooks are going to be the norm for Android books going forward, because THEN they'll let you have the best of all worlds -- the coherent editing and comprehensive content of "real" books, the up-to-date accuracy of the best online sources of info, and a reading experience that doesn't kind of suck. Five years from now (when the eBook experience has finally become civilized), I'll be shocked if programming books even exist anymore in printed form, aside from maybe books like "${Language}: How to Program" that deal with topics that don't really change radically from month to month and are more or less universal as college textbooks. Programming and system administration are the kind of topics that are really too volatile for paper books, and for they most part they've ALWAYS been... there just hasn't really been a civilized alternative to them. IMHO, Android tablets will be what finally make it a civilized experience, because for the first time normal people (meaning developers who don't work for huge corporate entities like Amazon and Sony) will be able to develop ebook apps with their own UI experiments. Right now, all we have are devices optimized for reading mass-market top-20 fiction... devices that largely suck for the specific task of reading (and referring to) programming books (where you generally flip around a lot, and 700ms latency every time you change a page will drive you insane in 3 minutes).
So, in summary, here's my recommended buying order:
If cash is abundant and you want a nice intro: Hello, Android (latest edition)
Absolutely mandatory: Beginning Android 2
Equally mandatory, but maybe a few weeks later: Pro Android 2
then, it's a toss-up between a commonsware "Warescription" for Murphy's other books (which gives you access to the latest and greatest versions of them for a year, plus perpetual ownership the last copies you downloaded before the year ran out) and Meier's book (if you really hate ebooks). Personally, I'd recommend the Warescription AND Meier's book
(*)1280x720 is the rock-bottom minimum resolution viable for comfortably reading an O'Reilly-Manning-sized book in pdf form two pages at a time. 800x480 is just a hair below the resolution you really need to comfortably read ONE O'Reilly-Manning sized page at a time.
Click to expand...
Click to collapse
Wow, thanks a ton! I'll be sure I pick up those 4 things later on.
Since I wrote the original post in this thread a couple days ago, I've spent some time trying to learn Java. As a total noob to programming, this has proven to be quite a challenge. Just about every book or eBook I see (A couple "java for dummies", "eclipse for dummies", "thinking in java", and I'm about halfway through the free sample of VTC's Java: Introduction to the Java Programming Language, which is an audio/video presentation thing) says that prior programming knowledge is necessary or that I should have some basis in C or something like that.
Also, there's command line as well as all of the different IDEs.. I'm assuming that these are all mainly interchangeable or what?
Should I just continue trying to learn Java and once I think I've figured it out just move on to Android or do you guys think I won't be able to get by without taking some sort of a programming class in school?
Thanks for all your help guys! By the way, how long do you think it might take to go from a noob to someone who can actually write an Android app?
for those of us that might be a bit hard up on cash http://developer.android.com/index.html
has a wealth of free information and sample programs. CHECK IT OUT!
Hello all, nice conversation that hasn't been diverted yet so I think I shall make a small contribution to this.
Programming courses and books that you can buy are a good way of learning but is not always an option due to mainly money constraints luckily we have this thing called internet , it has never been easier to learn programming than it is at the moment the plethora of resources available is absolutely incredible the only problem might be in finding things in a structured and well ordered way.
One of the tricks I've used in the past is to look up books that either get recommended or you like the look of and then find the index listing for that book which is usually given away free by sites selling books, then all you need to do is Google for the given topics =o)
As for learning Java to get started on the path to Android application building I think the biggest issue most people will be facing is that they find Java books but none of them seem to be making anything exciting, the problem is to make exciting things you really need to know a fair bit more about developing.
So that having been said I think as a short check list for someone looking to go from zero programming experience to developing their first android apps I would recommend something like this:
1. Go and read about Object Oriented Programming model
You won't fully grasp all the concepts straight away without having done any programming but it is good idea to get this stuff into your head straight away as it will start making more sense once you've learned a bit and then makes it easier to later on come back to this and get the lovely eureka! moments. Good place to start could be something as simple as Wikipedia.
2. Write console applications
By this I mean little java applications that you will be running from the command line on your computer. This is where most people I think get discouraged as they can't see how this relates to Android development.
Forget about graphics, user input, mobile devices etc for now, you can learn so much by writing these:
-Basic types & Variables
-Arrays
-Basic arithmetic and working with strings
-Loop structures
-Logic such as IF statements
-Creating new classes and objects
-Calling functions and returning values
Now all of the above will be used over and over and over again no matter whatever you are writing and the good thing is that it can all be learned by learning 1 additional non android specific thing: how to print out text to command line.
A good example application that you can write that uses most of the above would be a simple application you run from the command line, it fills an array with randomly generated integers between 1 and 20, lets say it generates 10 of them and then displays them to you in the order of smallest to highest.
No user input required, no graphics required etc, its not the most exciting thing but it will get you using all the basic building blocks.
3. Revisit the object oriented model
Do this again as it is pretty vital you understand it and after completing step 2 it will start making a whole lot more sense.
4. Install Eclipse and complete the Hello World tutorial on the android site:
There are plenty of guides on how to install the Android SDK and Eclipse environment and the best ones are from Google themselves. Follow them, if something doesn't work, try and figure out why it doesn't and then search for it, chances are that someone has already figured out why and you've just missed something.
Then complete this tutorial: http://developer.android.com/resources/tutorials/hello-world.html
5. Modify the Hello World tutorial:
Don't get ahead of yourself and start writing your killer app now, start slowly modifying the Hello World tutorial, learn how to display a piece of text from your application.
Now do everything you did with Step 2 but do it all on the Android app.
Visit this list but don't get too stuck with it:
http://developer.android.com/resources/faq/commontasks.html
6. Complete the Notepad tutorial:
If you've blindly followed my steps/similar steps this will be difficult and you should spend a good while dissecting all of it. The tutorial is actually excellent and touches on everything you pretty much need to write a fully functioning application. Don't go for the way of downloading sample source blindly following the tutorial, compiling in the end and then checking this as done.
I bet there are million things you won't understand about it so just keep going through it line by line and when you understand how it works, make it your own, start adding features to it, just silly things but do it =o)
7. Read, Read, Read & Start small.
You should now be at a point where you can start thinking about why you originally wanted to develop for android, if its a simple app you wanted to make start reading about topics that are specific to your app. Also this is a perfect time now to pick up an android application development book, up until this point all the free information has been as good as if not better than books.
If you want to make a game...be prepared to be spending atleast 2-3 times as long as you have to this point before it becomes even viable.
And final piece: Start small, for your first app don't start writing a full fledged facebook killer android social networking location based interactive photo editing physics calculator, do something simple and gradually build up to bigger projects...trust me on that =o(.
Anyhoo bored at work as you can probably tell, hope the above is a good outline for someone thinking of undertaking Android development if they have no previous experience. I don't mean to put people off just be prepared to spend a LONG time with this, it's not overly difficult but if you haven't done development before the sheer amount of new concepts you will have to understand from early on and WELL is very daunting.
.FxN
1. Install required components
* For Java use the latest version
* Android SDK
Once downloaded extract the folder to one of the PATH for example E: \ android_sdk_windows
* To Eclipse used Eclipse 3.5 (Galileo)
2. Add the Android platform and other packages needed to SDK
* SDK Run Setup.exe
* In the Available Packages menu to select all the packages downloaded
* select Install Selected and then select the Accept All to accept the selected packages
* select Install Accepted , Choose Install to install packages that we want to SDK
* Set the path to the Android SDK directory, by opening the Control Panel and then click on mycomputer system or right click and select Properties. Then on the Advanced tab select Environment Variables, click Edit on the path then input the Android SDK directory path
3. Install Android Development Tools (ADT)
fxn said:
Hello all, nice conversation that hasn't been diverted yet so I think I shall make a small contribution to this.
Programming courses and books that you can buy are a good way of learning but is not always an option due to mainly money constraints luckily we have this thing called internet , it has never been easier to learn programming than it is at the moment the plethora of resources available is absolutely incredible the only problem might be in finding things in a structured and well ordered way.
One of the tricks I've used in the past is to look up books that either get recommended or you like the look of and then find the index listing for that book which is usually given away free by sites selling books, then all you need to do is Google for the given topics =o)
As for learning Java to get started on the path to Android application building I think the biggest issue most people will be facing is that they find Java books but none of them seem to be making anything exciting, the problem is to make exciting things you really need to know a fair bit more about developing.
So that having been said I think as a short check list for someone looking to go from zero programming experience to developing their first android apps I would recommend something like this:
1. Go and read about Object Oriented Programming model
You won't fully grasp all the concepts straight away without having done any programming but it is good idea to get this stuff into your head straight away as it will start making more sense once you've learned a bit and then makes it easier to later on come back to this and get the lovely eureka! moments. Good place to start could be something as simple as Wikipedia.
2. Write console applications
By this I mean little java applications that you will be running from the command line on your computer. This is where most people I think get discouraged as they can't see how this relates to Android development.
Forget about graphics, user input, mobile devices etc for now, you can learn so much by writing these:
-Basic types & Variables
-Arrays
-Basic arithmetic and working with strings
-Loop structures
-Logic such as IF statements
-Creating new classes and objects
-Calling functions and returning values
Now all of the above will be used over and over and over again no matter whatever you are writing and the good thing is that it can all be learned by learning 1 additional non android specific thing: how to print out text to command line.
A good example application that you can write that uses most of the above would be a simple application you run from the command line, it fills an array with randomly generated integers between 1 and 20, lets say it generates 10 of them and then displays them to you in the order of smallest to highest.
No user input required, no graphics required etc, its not the most exciting thing but it will get you using all the basic building blocks.
3. Revisit the object oriented model
Do this again as it is pretty vital you understand it and after completing step 2 it will start making a whole lot more sense.
4. Install Eclipse and complete the Hello World tutorial on the android site:
There are plenty of guides on how to install the Android SDK and Eclipse environment and the best ones are from Google themselves. Follow them, if something doesn't work, try and figure out why it doesn't and then search for it, chances are that someone has already figured out why and you've just missed something.
Then complete this tutorial:
5. Modify the Hello World tutorial:
Don't get ahead of yourself and start writing your killer app now, start slowly modifying the Hello World tutorial, learn how to display a piece of text from your application.
Now do everything you did with Step 2 but do it all on the Android app.
Visit this list but don't get too stuck with it:
6. Complete the Notepad tutorial:
If you've blindly followed my steps/similar steps this will be difficult and you should spend a good while dissecting all of it. The tutorial is actually excellent and touches on everything you pretty much need to write a fully functioning application. Don't go for the way of downloading sample source blindly following the tutorial, compiling in the end and then checking this as done.
I bet there are million things you won't understand about it so just keep going through it line by line and when you understand how it works, make it your own, start adding features to it, just silly things but do it =o)
7. Read, Read, Read & Start small.
You should now be at a point where you can start thinking about why you originally wanted to develop for android, if its a simple app you wanted to make start reading about topics that are specific to your app. Also this is a perfect time now to pick up an android application development book, up until this point all the free information has been as good as if not better than books.
If you want to make a game...be prepared to be spending atleast 2-3 times as long as you have to this point before it becomes even viable.
And final piece: Start small, for your first app don't start writing a full fledged facebook killer android social networking location based interactive photo editing physics calculator, do something simple and gradually build up to bigger projects...trust me on that =o(.
Anyhoo bored at work as you can probably tell, hope the above is a good outline for someone thinking of undertaking Android development if they have no previous experience. I don't mean to put people off just be prepared to spend a LONG time with this, it's not overly difficult but if you haven't done development before the sheer amount of new concepts you will have to understand from early on and WELL is very daunting.
.FxN
Click to expand...
Click to collapse
Oh wow. This is great! Thanks a ton for taking the time to write all of that, I'm gonna go get started
I've already touched upon many of those things thanks to free ebooks and youtube tutorials and such, but now I know exactly what to do
Quick question though: what's the "notepad tutorial" ?
thanks again!
and @learnandroid, thank you as well for the instructions. i have eclipse set up now
A nice java book that I recommend is called Java Programming, comprehensive edition.
fichdak said:
Quick question though: what's the "notepad tutorial" ?
Click to expand...
Click to collapse
I can't yet post links, but just Google "Android notepad tutorial" - it's the first hit.
They take you through 3 different versions of the app, each slightly more complicated than the last. Definitely worth going through if you're new.
XDA has always been a fantastic community and you guys are the reason. Thank you for the thoughtful and very much appreciated advice and help.
I'm having a great time already. I really hope I can get into the class but it's already full with a waiting list. The books, tutorials and great resources are of course great but I have always liked to do new stuff with groups. I tend to learn more with some group goals involved along with the focused study.
Thanks again guys.
http://www.linuxclassroom.com/
This guy in San Antonio started an Android programming class for 8th graders and posted all of his lesson plans online. Might be a good place to start.
fichdak said:
Quick question though: what's the "notepad tutorial" ?
Click to expand...
Click to collapse
Sorry forgot to post the link: http://developer.android.com/resources/tutorials/notepad/index.html
.FxN
Great Thread full of info.
I have tried learning C# and Java on my own in the past but I could never grasp the concept and gave up.
I had an opportunity to go back to school full-time with programming in mind. I started last spring taking Software Development which teaches basic concepts of programming. Now I am starting my second semester in the fall taking intro to Java and c++ followed by advanced Java and c++ in the spring .
I hope I can transfer the knowledge from school along with the info provided in this Thread to build quality android applications in the future.
Thanks
-Bri
I know it's geographically limited to a small subset of the people here, but I'm pretty sure I remember reading somewhere that UC Santa Cruz actually has courses in Android Development (part of their certificate in embedded software development curriculum). However, I think it's safe to assume that a solid background in Java (including objects and threading) is a prerequisite. Anyone who lives within sane driving distance of Silicon Valley might want to check them out...
I definitely have to agree that if you're literally just starting with Java, don't even *think* about touching Swing until you're comfortable writing console apps. It's really easy to get overwhelmed by Swing. For the most part, Android programming isn't really harder than good Swing programming... the difference is, with Swing, you can still get away with doing some things that are bad, but will kind of work anyway (like blocking operations by a UI thread). Android simply won't tolerate or allow you to even *try*. It's good in the long run (I guess), but makes writing your first few real programs a lot harder than you probably expect it to be.
For example, Android won't allow classic "Modal" dialog boxes (where everything grinds to a halt until the user clicks something). Period, end of story. You really shouldn't do it anyway, but being allowed to do it in Swing makes it easier to take your first few baby steps and see your program (sort of) work. With Swing, you can staple the shell of your program together with bad things, then fix them and make them nice once the logic is worked out. With Android, you have to Do It Right the First Time, because it won't allow you to do it any other way.

Trying to become a developer

Sorry if this has been posted but I couldn't find one and if posted in wrong section
Im trying to become a developer but I am stuck at hello android and don't know what to do from there if anyone can show me a way to develop apps easily please help out and this is my first post too =]
Sent from my overclocked Cyanogenmod htc evolution 4g sucka
cesarcerros31 said:
Sorry if this has been posted but I couldn't find one and if posted in wrong section
Im trying to become a developer but I am stuck at hello android and don't know what to do from there if anyone can show me a way to develop apps easily please help out and this is my first post too =]
Sent from my overclocked Cyanogenmod htc evolution 4g sucka
Click to expand...
Click to collapse
You're stuck getting Hello Android to work or whate to do after hello android? Do you know any development languages such as Java or C#? (you'll be writing android apps in java, but C# is really MS version of java with a few syntax differences) If not, are you familiar with object orientation? If not, it's gonna be tough dude but if you're smart and pick stuff up quickly you can learn by reading.
Pick up some books and look at youtube videos.
Sent while sitting on the toilet.
Alright thanks its just that helloandroid project wouldn't start right but I will look up massively on how to start a different way or just try to find the solution and youtube always helps and anyone knows how to make roms looking to make aosp
Sent from my overclocked Cyanogenmod htc evolution 4g sucka
There's a few free Eclipse and Java books out there that a beginner will understand especially if you already understand the concepts of object-oriented programming. Eclipse IDE itself will need a book as it's full of plugins and tools you need to understand to compile your project effectively.
It's going to be a very very long and slow road.
This may help, a series of YouTube videos for beginners.
http://eclipsetutorial.sourceforge.net/totalbeginner.html
I've been thinking the same thing, learning to develop for Android. Since I have near zero experience programming (save for a VB class in college) I decided I would be better off hiring someone to write what I want.
Just keep in mind though, Hello World is just where people start.
You may want to check out the android Appinventor. It's made by Google, and is in beta testing now, but it's a graphical way of programming for android. Though there isn't any code involved and won't be good/used outside of Android, it does a good job imparting the logic of programming.
I'll give you some tips that I've learned over the years as a developer.
First if you haven't done any development before I highly advise obtaining a book. True there are tons of web tutorials out there but personally I find a good author can do wonders in learning how to develop software. Anytime I want to learn a new platform I pick up a book on that platform. Of course you can find a ton of books used but another great source is a library. If you're in college with a computer science program chances are your library will have a couple of books on Android development. Your public library probably has some books on the subject as well. If all else fails see if you have a friend who will loan you a book.
Reading about development is only part one, part two is hands on. You can read an entire book on developing software and walk away with no knowledge. You can mindlessly follow the examples in the book but I find it best to use the examples in books as a guideline. In other words take the idea in the book and morph it so you're working on something original. Trust me here, you'll learn a lot more doing this instead of just mindlessly following the examples.
Next thing you'll need is a problem. Why? Because you need something to write. I find myself most motivated to write software when I either have a problem or something else has one and a checkbook. What do you want your phone to do? Are there applications out there that solve your problem but you think you can do better? Think small and easy since you're still new. Realistically you're not going to be able to make a web browser from scratch as your first project but you can certainly make a database of movies you own.
One thing that is debatable is whether you should learn to write something quickly or well. Frankly I'm in the school or writing something quickly and ignoring "correctness" when you're new. People new to programming spend too much time worrying about doing things "correctly" (very important when you're developing actual software) instead of learning how to do things in the first place.
Your code may not be readable, may not be optimized, and may crash every time an invalid input is entered into a field but you'll learn from those things. I think most people who end up hating programming do so because they spent too much time on worry about the little things and thus seeing no results for their work. Once you have the basics down you can concentrate of the details of optimizing code, validating inputs, and making your code readable.
Honestly not matter what you write you'll look back at it in embarrassment ten years from now anyways.
Ok thanks will look for a book
Sent from my overclocked Cyanogenmod htc evolution 4g sucka
cesarcerros31 said:
Ok thanks will look for a book
Sent from my overclocked Cyanogenmod htc evolution 4g sucka
Click to expand...
Click to collapse
Buy a Java book that also covers Object Orientation basics and principals. (you'll also need to understand some XML to do android programming) If you want to make kernels/ROMS, definitely look into Linux and shell scripting. (you can find most of this info online though)
By the way, I heard the "Java in 24 hours" book is pretty good.
Sirchuk said:
By the way, I heard the "Java in 24 hours" book is pretty good.
Click to expand...
Click to collapse
it might be good, but it wont teach him how to actually code. Most of those books are made for people that know other languages like javascript/php/c/etc.. and are wanting to move to java and learn the new syntax.
I have no idea as to what you know. So ftw.
Write what ever you decide in a pseudo code, first.
Two things will fall out of that, a design, and java methods of implementing the pseudo language ( as you decide what java syntax does your psuedo code) which invariably returns you to (1) the design. I think it's called iterational refinement, or some such other bs.
So don't get bogged down, now that you know hello, make it start "right"...
You all do realize that eclipse was a machine.. a sunny>dg joke.

[Q] Learning to Dev

I have been a member of XDA for a while and now I want to contribute. I have a basic understanding of computers and want to learn more. Obviously our greatest devs were not born devs they had to learn everything from somewhere. I'm looking for suggestions on where to start on the road to become the best dev I can be. Keep in mind I'm flat broke so I cannot hit up the local bookstore or download any paid software, but with the way the internet is today there must a free legitimate source for everything somewhere. So anyone willing to help a noob If I posted in the wrong section please kindly redirect me rather than flame me. Thanks in advance.
It all depends on what you want to contribute. I'm a beginner myself (only developing since august). It is easy to learn Java, for the most part. I would suggest heading over to http://developer.android.com/index.html for starters. There are many examples and if you want to know something specific, try using the search bar at the top right (it comes in handy). I have already published an app, a simple one, but still an application none the less. I am working on two other projects simultaneously (a live wallpaper and a home-replacement app). You can come to my website http://futurinnovations.blogspot.com/ to see what I'm working on. I am still in the process of learning, and being in college slows things down a bit. Just make sure not to give up. If your stuck, ask someone (or everyone) on forums like this.
Futur Innovations said:
It all depends on what you want to contribute. I'm a beginner myself (only developing since august). It is easy to learn Java, for the most part. I would suggest heading over to http://developer.android.com/index.html for starters. There are many examples and if you want to know something specific, try using the search bar at the top right (it comes in handy). I have already published an app, a simple one, but still an application none the less. I am working on two other projects simultaneously (a live wallpaper and a home-replacement app). You can come to my website http://futurinnovations.blogspot.com/ to see what I'm working on. I am still in the process of learning, and being in college slows things down a bit. Just make sure not to give up. If your stuck, ask someone (or everyone) on forums like this.
Click to expand...
Click to collapse
I forgot to mention I want to learn to dev for Android. I want to start out with simple apps then work my way up to building/porting roms. Also I just downloaded the Java JDK and am using Java's "Greenfoot" Tutorial to get started since I have no experience with Java. And I will be sure to check out your blog and thank you for the reply.
porting and building is something far different from app development...you have to know much more if you want to work with kernel,drivers,basically you have to know everything from hardware level to user level (if you want to be top of the class)...good luck
farukb said:
porting and building is something far different from app development...you have to know much more if you want to work with kernel,drivers,basically you have to know everything from hardware level to user level (if you want to be top of the class)...good luck
Click to expand...
Click to collapse
Well we all gotta start somewhere. Now is probably a good time for me as I'm only 18 and a senior in high school. Since I don't have a job at the moment I have plenty of free time after school and on weekends.
I'm only 18 myself. I started straight with downloading Eclipse and all of the appropriate software for developing and just dove in. I would recommend watching these tutorials: http://www.xtensivearts.com/topics/tutorials/. They helped me A LOT. I am taking a programming in C class in the spring semster, which I am looking forward to. Programming in Java for Android is different than regular programming. It's the same concepts, just different APIs and tools. I like using Eclipse because it is easy to learn and get used to. There are a lot of fancy features like a type of autocorrect (not like on the phone, but smarter). Like you said, just start from the basics, like "Hello World" (Hello Android) and practice creating different layouts using the tutorials given on the Developer site. Explore the site and look through everything because eventually you may need to know where its located for quick access. Just don't set too high of goals for yourself, other wise you might be more prone to give up (like I almost did). Good luck
Im in ths same boat as you we got to start somewhere
mit have a fantastic course in computer science online.
search for MIT open courseware then introduction to computer science.
I'm on 10 now, getting very complicated
crowstar said:
mit have a fantastic course in computer science online.
search for MIT open courseware then introduction to computer science.
I'm on 10 now, getting very complicated
Click to expand...
Click to collapse
Thanks bro I'm checking out that MIT course right now it looks really helpfull
This is a great starting point for Android development, as it deals quite well with getting the Android SDK and Eclipse IDE set up and working together.
http://www.vogella.de/articles/Android/article.html
Futur Innovations said:
I'm only 18 myself. I started straight with downloading Eclipse and all of the appropriate software for developing and just dove in. I would recommend watching these tutorials: http://www.xtensivearts.com/topics/tutorials/. They helped me A LOT. I am taking a programming in C class in the spring semster, which I am looking forward to. Programming in Java for Android is different than regular programming. It's the same concepts, just different APIs and tools. I like using Eclipse because it is easy to learn and get used to. There are a lot of fancy features like a type of autocorrect (not like on the phone, but smarter). Like you said, just start from the basics, like "Hello World" (Hello Android) and practice creating different layouts using the tutorials given on the Developer site. Explore the site and look through everything because eventually you may need to know where its located for quick access. Just don't set too high of goals for yourself, other wise you might be more prone to give up (like I almost did). Good luck
Click to expand...
Click to collapse
Hi, I'm 24. And I learn how to 'program' since 14-15.
It's easy to write apps for Android. But it's hard to write good apps.
You should take Software Engineering course (NOT Computer Science course).
If you take CS (Computer Science) course, than you will learn mainly about algorithm.
But if you enter SE (Software Engineering) course, you will learn about SDLC, software QA/testing, and planning to write programs for living
:-D
I personally don't like eclipse, it's just bloated IDE :-(
I use SciTE, apache ant, MinGW/MSYS (GCC 4.5.0), Java SDK, ActivePerl, Dev-C++ IDE. That's should be enough for development :-D
I will see if there are any software engineer classes at the college I am attending. If so, then I will sign up for it. Thanks for pointing me in the right direction. Is taking the programming class still beneficial?
Sent from my ADR6300 using XDA App
Futur Innovations said:
Is taking the programming class still beneficial?
Click to expand...
Click to collapse
I'd really recommend a class if it's a viable option. It will help you understand object oriented programming, where just working through examples won't actually teach you how to understand what you're doing. Things like classes, inheritance and polymorphism are pretty difficult principles to grasp unless you've got someone to explain them to you. Then it's pretty easy.

Can I learn by my self?

Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
Well you really need to know Java basics, and then just start learning off the getting started guides on the official site
deanwray said:
Well you really need to know Java basics, and then just start learning off the getting started guides on the official site
Click to expand...
Click to collapse
Thanks
It's possible to learn on your own, but it can be good to have others to either learn from or run your ideas by also. It's difficult to notice you're stuck in a box sometimes!
It's also a good idea to play with the SDK sample apps when you're learning not only Java but Android APIs.
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
YES YOU CAN
The best place to start would be to download and import the source codes of very simple open source android apps, read them thoroughly and then start making little modifications to it to learn what code affects what part of the app's functionality, try adding new functions and features. This way you will learn and build up your confidence.
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
Although it would probably be easier if you were taught it in an educational envrionment (university maybe?) or, like driving lessons, you had an actual android developer sit down next to you when learning/developing I personally think the official android Design and Develop series can take you from novice to intermediate - low end of complicated development. You could use these in conjunction with xda dev or stackoverflow to get any information/code that's missing or you don't understand how to implement.
developer.android.com/design
developer.android.com/develop
developer.android.com/training (especially this one)
Thankyou very much, I will start download source code and test modifys.
Android Developer official Israel very difficult for me.
But thanks
Sent from my GT-I9500 using xda app-developers app
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
Yes you can...Headfirst Java is a good book for beginners plus there are many web Tutorials on Youtube. You just need to be patient and work hard.All The best.
voilaworks said:
Yes you can...Headfirst Java is a good book for beginners plus there are many web Tutorials on Youtube. You just need to be patient and work hard.All The best.
Click to expand...
Click to collapse
Thank you
You can learn the basics by reading books or doing online Tutorials Did it aswell - successfully ofc
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
Hello, the answer you are looking for is absolutely! You can learn everything you need to by yourself, granted it will take much longer than if you had someone to ask questions.
How do I know? I started programming on Android ~3 years ago, by myself. I had nobody that talked me into it, and I didn't attend any colleges. A motivational spark encouraged me. I had absolutely no programming experience, how it worked, or anything about it. Now, I have 5 apps on Google Play, and am working on my 1st game. All with the knowledge I've accumulated over the years out of pure interest. People laugh when I tell them it's my hobby, I stand serious haha.
For me, youtube (something visual) helped me get started, as you can easily follow along. After you feel you have a grasp on the basics, I started looking online further. Searching this site, and StackOverflow.com are great learning resources. Before you know it, you'll be a master! Good luck!:good:
Firstly, it might help if you describe what is your exact situation. How much experience (not job experience, but coding experience) do you have in programming? How much comfortable you are with any programming language, say C? How familiar you are with OO concepts? Are you uncomfortable just because there's something different with Java, or is it because Java is your first programming language? If you read carefully, the preface of SCJP book says that this book is not to be used to learn Java from the scratch.
Btw, unless you get all building blocks in place (e.g logic constructs - loops, basic data structures, OO concepts etc.) don't go for other stuff like threading, swing, JDBC, xml parsing etc. :good:
You can definitely learn it on your own as long as you have to drive to do so. I taught myself ( I had no computer background). I am no expert but I can get by. And I just released my first multi-player game, Word Cloud Social, on Google Play yesterday. Check it out .
auricPuneet said:
You can definitely learn it on your own as long as you have to drive to do so. I taught myself ( I had no computer background). I am no expert but I can get by. And I just released my first multi-player game, Word Cloud Social, on Google Play yesterday. Check it out .
Click to expand...
Click to collapse
Wow, thanks for your words, inspired to me.
A friend teach me a little and gime me a source code of a theme pack and I know change the image and customize this, but I need learn more.
Thank youvery much
As auric stated, you have to have the motivation and determination to learn by yourself, but it is definitely possible.
Don't rush it, take your time and try to understand it. Analyze everything, and if you have questions search the web, or ask on sites like here right away.
You have to believe in yourself
Noted to self thrice via tapatalk
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
yes you CAN, i did it my self one year back, now i have my own app in playstore
useful links:
http://www.vogella.com/tutorials/android.html
http://stackoverflow.com/questions/tagged/android
http://docs.oracle.com/javase/tutorial/
http://omapzoom.org/
http://grepcode.com/project/repository.grepcode.com/java/ext/com.google.android/android/
angelgavipo said:
Hi, I dont know java but I know a little about Eclipse and make apps.
But I nedd know if is possible learn by my self.
And How??
Thanks
Click to expand...
Click to collapse
Of course you can, read a lot of tutorials or watch a lot of video tutorials depending on what you prefer and how you learn best, but most importantly: practice.
I think the best way is to find a simple idea you like for an app, and learn just what you need to create this app along the way, start off with a basic "how to setup an android app project" tutorial and work your up from there.
The android framework is quite wide, you can't learn all at once, I think this method allows you to stay on a defined path and actually achieve something.
And by learning the APIs you need for your app idea, it'll open more doors for you to learn other APIs to improve upon your project, or start a new one being more comfortable with the environment.
If you're more the type of learner which learns best by watching, I recommend you watch the 200 videos series for beginners by TheNewBoston, it's a good start:
https://www.youtube.com/playlist?list=PL2F07DBCDCC01493A
The official training courses and docs can be a bit overwhelming for beginners I think.
If it's something you really want to do, then just practice a lot and stick with it, you'll get there.
Just 3 or 4 years ago I didn't know anything about programming except some very basic HTML, I learned by myself and now I work full-time as a front-end Web & Android engineer at a french startup (IZIPass), on projects for clients such as McDonalds and Subway.
If you're looking for some inspiration, the series about Hacker Schools by former XDA TV producer Jayce Broda is an awesome one.
It shows how Mark Rossetti evolved from a total beginner to being hired by SalesForce in the SF bay area in 12 weeks.
You really get to see his progression as these are weekly interviews, it's great, I know it inspired me a lot. And still inspires me to try and go live in San Francisco, but that's another subject^^
Just make your own "Hacker School" for yourself
You certainly can. I'm still in highschool and I'm self taught. I educational book I've enjoyed reading was Java Notes 6. Its free of charge on his website!
Sent from my Nexus 5 using xda app-developers app
gh0stslayer said:
YES YOU CAN
The best place to start would be to download and import the source codes of very simple open source android apps, read them thoroughly and then start making little modifications to it to learn what code affects what part of the app's functionality, try adding new functions and features. This way you will learn and build up your confidence.
Click to expand...
Click to collapse
Love this idea.
ricky310711 said:
Love this idea.
Click to expand...
Click to collapse
Thank you
To get interesting app's source codes one could use F-Droid (it's an app store which only hosts open source apps).
And also people with somewhat limited coding knowledge could use APIs to further reduce their efforts.
I found this app very helpful and inspiring in this regard.

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