A Good Start Source To Begin Learning To - Android Q&A, Help & Troubleshooting

Develop app's?
Okay the run down on me and my knowledge, only thing I really know and ever learned was possibly advanced html, but it's gotten me pretty far in my ways.
The way I learned was by sourcing pages and piecing together different sections of codes going through trial, error and asking for help when running into a dead end.
Is there a similar way I could learn the basics of javascript for app development by sourcing some apk's, or what and how would be a good way to start for me really? I really don't want or see a point in taking a full course in javascript (Or flash) just to pickup and start learning the basics of developing app's, I'd much rather progress as I go on continuing to develop and keep evolving each time, rather than learn this first, then learn that then finally once pretty much mastered those start developing app's.
We all have different learning methods.
I've got a few app's I'd love to work on and develop out of boredom and knowing nobody else would develop them so why not me and give it a shot. 2 social site app's and 1 exercising app, really not an app for exercising but more of a idea brought into those types of recording app's.

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[Q] Where to learn the basics?

I haven't seen this anywhere as it's own thread so I apologize if it's been talked about in other threads.
I'm not an amazing programming guru by any means, but I'm definitely no slouch either. My problem is that I don't have time to start diving into code and reverse engineering, but once I get a basic understanding of "what's what" I do a pretty good job of learning by experimenting and doing small projects etc.
What I'm looking for is a basic break down of the workings of the android system. Things like wtf the osh partition is for and how different parts of code interact to create basic functions etc.
Also, I'm curious to know if you can use the Android SDK emulator to test custom ROMS. I know you can use it to test apps you create for stock ROMS, but wasn't sure if it'll just run any ROM.
First off, buy root explorer. You can poke around a ton and learn a lot.
Next maybe download a few roms/cwm flashables and unzip them. Just look around and open stuff up.
Go through the sdk/source it has a lot of useful stuff.
Yes you can use the sdk emulator to test roms out.
The best thing you can do to learn is dive into a project you are interested in. Make mistakes and poke around. There are a lot of people that can help. 90% of my learning android was just playing around with it and poking around. Google helps too.
This stuff is easier than it seems. You just have to peel the layers back.
Btw osh is webtop
tcf84 said:
I haven't seen this anywhere as it's own thread so I apologize if it's been talked about in other threads.
I'm not an amazing programming guru by any means, but I'm definitely no slouch either. My problem is that I don't have time to start diving into code and reverse engineering, but once I get a basic understanding of "what's what" I do a pretty good job of learning by experimenting and doing small projects etc.
What I'm looking for is a basic break down of the workings of the android system. Things like wtf the osh partition is for and how different parts of code interact to create basic functions etc.
Also, I'm curious to know if you can use the Android SDK emulator to test custom ROMS. I know you can use it to test apps you create for stock ROMS, but wasn't sure if it'll just run any ROM.
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jokersax11 said:
First off, buy root explorer. You can poke around a ton and learn a lot.
Next maybe download a few roms/cwm flashables and unzip them. Just look around and open stuff up.
Go through the sdk/source it has a lot of useful stuff.
Yes you can use the sdk emulator to test roms out.
The best thing you can do to learn is dive into a project you are interested in. Make mistakes and poke around. There are a lot of people that can help. 90% of my learning android was just playing around with it and poking around. Google helps too.
This stuff is easier than it seems. You just have to peel the layers back.
Btw osh is webtop
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I appreciate the feedback and I definitely will do that. It's the same way I taught myself php but with that I actually started out just making various php scripts. I've never had to open the source of a major program and start sorting through, but I'm sure I can do it though I'm guessing it will take some time to get things sorted out.
tcf84 said:
I appreciate the feedback and I definitely will do that. It's the same way I taught myself php but with that I actually started out just making various php scripts. I've never had to open the source of a major program and start sorting through, but I'm sure I can do it though I'm guessing it will take some time to get things sorted out.
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take a look at joker's compiling thread as well... and i'd add just read - there's a ton of information on xda and other sites on code changes, etc to 'tweak' the system.
i'm sure the guys on irc would answer any questions you may have as well, if they're not sleeping.

Thinking about going into developing

Hi guys,
I think I have been an xda user long enough..so I though, why dont I try my hand in developing and be more of a giver than a taker in this great community.
Problem is, I dont know where to start. So if you dev guys could give me an effective learning path(study this first, then this, then this)..I would be most greatful!
Im not a developer by training(an accountant, of all things!!), however, I did get into IT audit so I know a little bit about the different flavors of unix..and I love coding(we use some scripting software in the trade, i know i know, its different) and i am never happier than trying to figure out how to make things work using code..
I know some of you may laugh at me, but I really am interested in this.
Thanks!
There's a great site here with lots of useful info
If your endgame is to develop for Android it might be best for you to jump in the deep end and start learning Java immediately. Don't worry about learning it by developing Android applications, just focus on developing on PC and you will have a much easier time. Once you've picked up the basics of Object Orientated programming then it's time to take a look at the Android APIs and go through some tutorials so you can see how the apps come together.
At the end of the day it's going to be a big job for you because you have very little experience. Unfortunately theres no real easy way out so you just have to put in the hours.
Yep!! Sleepless nights! Just like a real dev..hehehe... I do know some languages like vb..python..javascript..but that was just me muckin around..nothin serious also..already had the netbeans ide setup...and got my java hello world cherry popped..hahaha..so lame
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DreadPirateDan said:
There's a great site here with lots of useful info
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Thanks man!!! Looks good!
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saunderez said:
If your endgame is to develop for Android it might be best for you to jump in the deep end and start learning Java immediately. Don't worry about learning it by developing Android applications, just focus on developing on PC and you will have a much easier time. Once you've picked up the basics of Object Orientated programming then it's time to take a look at the Android APIs and go through some tutorials so you can see how the apps come together.
At the end of the day it's going to be a big job for you because you have very little experience. Unfortunately theres no real easy way out so you just have to put in the hours.
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Yes..that is my endgame..but i was hoping you guys could point me to some android specific stuff..like how kernerls work..etc..basically i want to know the environment first...using google doesnt really yield in depth stuff
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Android is basically Linux with a custom UI.
If you want to know how kernels work (and you really shouldn't(!) if your goal is to make apps, as that's REALLY in-depth lowlevel stuff) just check out how Linux works - there's a million million articles on the net about the internals of Linux.
Android specific app development stuff, incl. tutorials and samples are here:
http://developer.android.com/guide/index.html
Maybe you just wanna setup the SDK and try to get the "Hello World" working, continue from there.
SDK: http://developer.android.com/sdk/index.html

Best way to get started in app development

So I came into this with previous programing knowledge, but not knowing java. I've read a book on java, then the programing android book.
So from those of you that actually write apps for the android platform, what do you think is the next step? Just get to it already? Start using eclipse and its built in tools to get started and learn by doing and googling as I go along?
Is that the way most of you have got your start? Any other books I should pick up?
Thanks
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Moving to Q&A
I am getting started too, am beginner / intermediate java programmer with little experience. The android site has some nice resources.
Developer.android.com ... Resources tab: look at the tutorials. The Hello World is a nice intro. You will install the Android SDK, eclipse, write a simple app, and seeit in action using the emulator. I have done Hello World and Hello Views.
I'd also appreciate any advice / guidance from more experienced droid devs!
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I've done that stuff so far. I've also played with the layout manager to.o. I th.ink I might start out making a sound board app. That seems pretty simple to do.
I'm just looking for some advice as the best way to precede
You're on the right way. The next step as a developer is just to develop software. Thats it.
You can look at some books and resources on the Internet to learn basics.
But I think the best thing to do is to imagine a mini-app (very simple, for example a calculator), and try to make it from scratch.
You'll learn how to search information and this will be less boring.
You can also create new projects from samples of the SDK, they are quite interesting.
Write code! Seriously. Screw the books (or you can waste money like me). I am sure that if you start building something like I have coming from a similar background, you will know what books to pick up when its time.
If you are a coder, just make up a project and learn Android in the trenches by figuring it all out as you go. That said, it would be invaluable to read up on the platform itself (the Android dev site is great) as programming for it is a bit different than what a lot of us are use to.
It's fun after you figure out the build environment on your platform. Also, if you are like me you live and die by text editors. That said, I have learned to finally embrace both Eclipse and Java thanks to Android.
EDIT:
I am now getting a lot of mileage out of Creating Android Applications by Chris Haseman. This is only after wasting money on books I wont read or that teach me to do things the wrong way. I was only able to make an informed decision after hacking together my first serious app. This book is packed with nuggets of insight from a and immediately answers questions I have from my experience with the ocassionally sparse documentation. I would highly recommend this book and because of it my future code is going to be very solid without the "did I do the right" feeling. <-- typed on g2x in Browser
Your right, I think I have enough background to dive in. I was playing around and created an app that plays mp3's when you click on buttons, didn't take long at all. Next thing I want to do is create a splash screen, and I took a quick look to see how to create buttons that are a picture and text, similar to the buttons in the google api sample.
Having fun with it so far.
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wants to learn coding/programming

i understand this question has been asked in similar ways but programming is quite broad so hopefully i can get a personalised response to help zone in on my learning.
bit of information about me:
ive been using computers all my life whilst doing a little bit of code tweaking for a variety of things such as; games(hex editting) web coding and even a bit of excel macro work.
i currently have no plans or commitments as of now and wanted to use my free days to learn something new that ive been intrested in since i was about 12 years old.
im looking for a base or a starting point in learning coding... i understand jumping straight into coding apps and things is way out of my reach but i guess i have to start somewhere! Im very much intrested in customisation and the ability to customise as much as possible on phones, games and applications but i have no idea where to start...
ive been looking around and people recommend learning all sorts of languages from:
php/css moving up to java
straight to java
python
c#
c++
c then progressing into c++
but id rather get an answer from a community that is notoriously skilled in the developing area so much so that i feel this is the best place to ask!
if there is anyone who also wishes to help me personally in helping me along the way and giving me some advice then please pm me as id be so grateful to have someone there to help me.
thanks in advanced for your responses im looking forward to learning and hopefully starting something that will be a major part of my life from now on.
Well, since this is a mainly Aneroid development website, and if you are interested in aneroid, I would just jump straight into Java. That's what I did at least... to learn Java just google "Beginner's guide to Java" or something. Hope this helps.
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i was hoping for more input then just one person, i would like to know what others feel is the best way to go about it so i can build up an idea of peoples opinions to see what i feel is the best strategy of learning.
i appreciate your input ballarous =)
penfold1992 said:
i was hoping for more input then just one person, i would like to know what others feel is the best way to go about it so i can build up an idea of peoples opinions to see what i feel is the best strategy of learning.
i appreciate your input ballarous =)
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What are your development plans for? Do you plan on donning an apron and becoming a rom developer or do you plan on developing apps? You're setup will differ between the two but either way grab yourself a few good java books but understand it applies to Android differently than regular java. Learn the fundamentals of java, it's core rules etc but study googles open source api to see how you implement your phones system into regular java format. Here is a link to the Google source for developers (not source as in the source you sync to build Android, source as in how to implement phone apis into that source) http://developer.android.com/reference/packages.html
Here's some general app development guides that will broaden your understanding http://developer.android.com/resources/index.html
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From my experience...
It probably does not matter where you start... I personally started with web based languages like VBS, and javascript, then jumped into c++... I completely avoided Java until recently.
VBS or Visual Basic is used for excel macros so you already have some experience under your belt. It should be pretty simple for you to apply that same understanding to the different syntax of Java.

[Q] Old developer needs serious learning advice

Hello All,
Will try and keep this short: Am an old time developer, since 1979. I was self-taught, as a kid, never one class. The weakness there is that I never learned most of the terms.
So when learning new languages, it was harder since I didn’t have a reference point. i.e. may no longer be used, but I created “linked lists”, just never knew they were called that.
Anyway, I never got past using C and WinSDK. And I learned just enough Perl on the fly as I needed it to create some backend parts to some of my apps.
I am desperate to start a new project, preferring to do it on Android first. As hard as I looked for LOCAL developers with serious programming experience, and preferably some Voice SDK experience I failed. I tried Craigslist and Meet Up. Nothing.
So I need to do this MYSELF. Or at least start it and come up with the alpha-prototype on my own.
After all that explaining, what’s the BEST (and least expensive) means I can purchase to teach myself programming an Android device?
I always loved forums, we’re talking back when NEWSGROUPS were the way to go. Because out there was always someone who knew…and was willing to share their point of view.
Currently using a PC-Windows environment, so any IDEs in that arena would be preferred.
So any help, any direction would be so appreciated.
Many thanks ahead all,
Sergio
I would definitely recommend grabbing Android studio and looking through Androids developer docs. If you're familiar with java all you really need to know is the Android framework and how everything works together (lifecycles, passing data around, working with various sensors/hardware, etc).
Android studio is free so no cost to you there. If you're not familiar with java there are tons of good resources online
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Hi!
I agree with @blackangus, i started programming for android with eclipse at that time and some tutorials i found online.
In my experience is a little bit frustrating at the beginning because is has some hard to understand concepts if you come from low level languages.
you can try to follow a basic lessons to start understanding the different parts like,
1) Views ( it cost me pretty much to understand how views and activities work)
2) Networking and async threads (restfull services calls and json manipulation)
3) Play services (push notifications, account registration and such)
this was the approach i took and it helped me a lot, i hope my humble guide helps you too.
5 years ago I got my intro to Android via Android App Inventor: http://appinventor.mit.edu/explore/
Good intro to Android concepts but drawing pictures instead of writing code still can't produce professional apps.
So I dove into learning Android Java. Nice...
My background was in C ; I never quite figured out C++ and have heard since that Java is superior anyway, written for OO instead of adapted from C.
I still program plenty of C for Android NDK low level code.
Before C, I did various assembly/machine languages, including the first CPUs in the mid 1970's and in early 80's front panelled a simple OS into an old PDP-11/05 to use an Apple clone keyboard and a "TV Typewriter" type 6847 Video board I built...
Now I'm wondering about iOS Objective C. Much more money still it seems in iPhones/Pads.
I am a newbie too. My background is microcontroller programmer, so i use C very often. When i start learning android programming, i begin with learning java and eclipse first, after i got the OOP concept, i begin learn to use android API and Android Studio....when we start from low level language, learning Java is easier... Java basic first then android API....
I am a serious coder, usually working with enterprise applications at my job. In my experience, if you need to learn something new, it is better if we get help from some friends or professional trainers. Saves us a lot of time and trouble. If you want to learn the basics of OOP and are going to build something, I suggest you get help of a professional trainer. You will be clear about the subject matter easily and with your experience, you will achieve progress within no time.
Wow. I don't feel so bad now. I'm and old geek too. I'm looking at trying to develop a simple game for Android. My last coding was in 1988 using COBOL. I'm a System Analysist but most of my experience was in medical systems and Digital Radiography. I'm basically a College Freshman.
Thanks for the information.
Can we keep this thread open or create another for Q&A from you wiz kids?
A funny note: I was involved with Search and Rescue in 1979. We were a driving force to get SAT phone's going but our budget only allowed for 2 satellites that year. We tested with a fellow driving in California while talking to us in Milwaukee. We only had a 20 minute window , then had to wait till the next.flyover 3 hours later. We've come a long way. Let's keep the momentum going!

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