[Q] about android development - Android Q&A, Help & Troubleshooting

1) What language is android OS based on?? if let's say it's based on language X, could you also please tell me what other language I could/should learn first before learning this ? thanks, i really wanna get into android
2) What language are the apps on google play based on?? and also where should i start learning how to make app??
3) Is it possible to work in Google's android section if i'm good at android coding?? I really hope i could work there one day and i'll strive for it of course :fingers-crossed:

wong93 said:
1) What language is android OS based on?? if let's say it's based on language X, could you also please tell me what other language I could/should learn first before learning this ? thanks, i really wanna get into android
2) What language are the apps on google play based on?? and also where should i start learning how to make app??
3) Is it possible to work in Google's android section if i'm good at android coding?? I really hope i could work there one day and i'll strive for it of course :fingers-crossed:
Click to expand...
Click to collapse
1. Android OS is actually based on Linux OS, and it uses Linux Kernel and its written in C language, and the apps and core components in Android is coded in Java.
2. Its based on Java. Java is the main language for android apps. You can start right away from the Tutorials given in the Android developer website. Also, there are tons of websites that provides Android Training, use a Google search and you'll get what you are looking for.
3. Now that's a tricky question. One thing for sure is that you need to be exceptionally well in coding and has high knowledge in problem solving mathematically. Recently in India, one guy from IIT (Indian Institute of Technology) has been appointed into Google located at California. And that too in his third year of his Engineering course, still one more year left for him to complete his course. So its all about your knowledge. The guy has said in media reports that he used to do lots of online coding challenges and etc. etc.

Related

Starting with Android app development

I have very little programming experience, just some in C and C++. But I'd like to start learning how to develop for Android.
Any good books/ebooks which will help me started? Or any guide or anything such?
Ill help you out if you want. Email me [email protected].
i wanted to start too, i just wanted to know if it is harder to learn to program for android than for example to programm with c#. and what's the best way to get started
meaningQo said:
i wanted to start too, i just wanted to know if it is harder to learn to program for android than for example to programm with c#. and what's the best way to get started
Click to expand...
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Just like me...
1. Start with learning Java as a programming language.
Don't waste time on learning how to create GUI in java as it is irrelevant to Android, but make sure you know the basics of how threading works, what collections you can use, learn the java event listeners model (concept only) etc.. Also make sure you're using Eclipse as it would probably be your primary IDE for Android development. For an experienced C++ programmer this step should take no longer than a week.
2. Install the Android SDK (follow http://developer.android.com/sdk/installing.html).
3. Read the developers guide basics.
4. Learn from examples!
The Android SDK comes with many example projects, just add a new Android project in eclipse and choose "from example" in the window that will follow.
There are also many open source Android projects you can learn from.
roee88 said:
1. Start with learning Java as a programming language.
Don't waste time on learning how to create GUI in java as it is irrelevant to Android, but make sure you know the basics of how threading works, what collections you can use, learn the java event listeners model (concept only) etc.. Also make sure you're using Eclipse as it would probably be your primary IDE for Android development. For an experienced C++ programmer this step should take no longer than a week.
2. Install the Android SDK (follow http://developer.android.com/sdk/installing.html).
3. Read the developers guide basics.
4. Learn from examples!
The Android SDK comes with many example projects, just add a new Android project in eclipse and choose "from example" in the window that will follow.
There are also many open source Android projects you can learn from.
Click to expand...
Click to collapse
good advice. but consider IntelliJ as well as Eclipse. i find IntelliJ nicer and faster to use
Another useful thread on this topic is here:
[Q] How did you learn to develop?
http://forum.xda-developers.com/showthread.php?t=1206082
As mentioned there, it would be good to get a general noob dev guide set up on here so that people can get started with developing.
Well i just started learning development in android as well,i have been trying hard to find sources to help me understand until i stumbled upon a gold mine....!
here it is:http://www.youtube.com/user/CornboyzAndroid
http://www.youtube.com/user/mybringback
this guys videos are awesome explains in detail....
Hope this helps all new learners like me,also the user in those videos has been doing this out of his busy schedule for free,if those videos teach you something or help you in anyway then please consider making him a small donation....!
I would also suggest to post your questions (or find answers) on the stackoverflow website (http://stackoverflow.com). It is full of smart guys
Another approach would be to build your apps in html / javascript using frameworks like JQuery, and then use a tool like PhoneGap which will bundle it into an app that will run cross platform
Found another good book:
android application devlopment for dummies.....!
great book see if u can find it,if u dont then let me know i will upload it ...!
its the best book i have seen for android
edit: ok here is a link for the book,i am doing this just because many ppl pmed me to upload it,if the mods feel the link shouldnt exist u can always delete it
http://stor1070.uploaded.to/dl/JnhVLWv0qz
link added to the above post
Thanks for this, good resources.
adicool said:
Found another good book:
android application devlopment for dummies.....!
great book see if u can find it,if u dont then let me know i will upload it ...!
its the best book i have seen for android
edit: ok here is a link for the book,i am doing this just because many ppl pmed me to upload it,if the mods feel the link shouldnt exist u can always delete it
http://stor1070.uploaded.to/dl/JnhVLWv0qz
Click to expand...
Click to collapse
Page not found
Error: 404
I would love to get that book but the link is not good. Thanks anyway.
i will be uploading it tonight then,u will see a link soon
Found the book here for download: http://www.google.com/url?sa=t&sour...s61ws8oFg&sig2=vQS3EtQFTFUaJWLnsmYGXQ&cad=rjt
Sent from my Transformer TF101 using Tapatalk
Ok another few of my good resources as always for laerning android:
Get hold of Android course videos by Plural sight
Android with java essential videos by Lynda.com
Android using essential java by O reilly
adicool said:
Ok another few of my good resources as always for laerning android:
Get hold of Android course videos by Plural sight
Android with java essential videos by Lynda.com
Android using essential java by O reilly
Click to expand...
Click to collapse
I have all 3 . They are really great sources. I've been learning development on android past 2 months.
Sent from my SAMSUNG-SGH-I997 using xda premium
you can also develop apps in adobe air. I have been able to port over some of my flex code into adobe air. You can compile into android, blackberry playbook, and the IOS with flash builder 4.5.1 only problem is flash builder is not free.
I'm currently churning my way through Thinking In Java. There's a free version on the official mindview.net website.
Learning Java as a programming language will pay off in the long run (I believe) as C# shares many fundamental areas with Java and so adapting to it should be easier if you have a good foundation in Java.
If you have previous experience with C++, then Java should not be too big a step for you.
I've heard that all those "Java for Dummies" books are pretty useless as they focus a lot on basic stuff and less on programming structure/patterns, etc.
as for the leap from Java -> Android Apps, I think the official android dev site is pretty sweet.

[Q/Suggestion] Android App/System for proposal

Hi, I am a student studying software engineering and this is my 3rd year and i am required to find a topic/subject for the undergraduate project to propose for lecturer. later it will be developed for real but i need to do the presentation first to obtain the lecturer's interest.
so anyone have any idea for apps or systems in mind that involving of using Android device? most students are doing web development or robotic kind of topic, but i wanted to do something for Android. the system must not be too simple, but also not too complicated for me to develop in the future but have a powerful output/results which help people doing things/works in everyday life.
and also some lecturers requires it to have Artificical Intelligence feature/type in a system.
and if you do know while suggesting, please do include what coding/programming language and what other knowledge(graphics/physics/etc) would be used in those systems.
I'm using SGS2, and prefer to make it working for hdpi device first cuz i can test it
Thanks!

Build own App

Hee,
I was wondering what is the best program or site to build your own android apps?
Jay448
google
you are long way from home, my friend. there is GOOGLE and your going to spend a day on reading its not like posting on this forum.
the web site "Stack Overflow" helps me a lot!
and if i had problem,i google it.
If you have to ask, app developing probably isn't for you...
The official Android Developer's Guide has a pretty good intro to Android app development. However, you need to know how to program in Java before you start with this guide.
If you know C++ you could make it without Java, since you can build apps using C++ if your target platform runs Android version 2.3 or higher. I would however recommend learning how to develop apps in Java first.
Sorry, I can't link to the developers guide because this is my second post in this forum and outside links are not allowed, but you could search for "android developer guide" on google and you should find it.
Happy deving, wish you best of luck
In my experiment, best way to learn new tech is try to make something with it rather than read document and tutorial.
There are many open source android on code.google.com, choose one of theme then try to custom it by adding feature, improve user experiment...
anddev and stackoverflow is good place to solver issue.
mobitourist said:
In my experiment, best way to learn new tech is try to make something with it rather than read document and tutorial.
There are many open source android on code.google.com, choose one of theme then try to custom it by adding feature, improve user experiment...
anddev and stackoverflow is good place to solver issue.
Click to expand...
Click to collapse
developer.android.com
I actually just started learning Java and it's quite difficult for a beginner to learn all this stuff in short amount of time. It will probably take years to fully understand this sort of stuff.
Sites to learn Android App Development from
Lars Vogel Android Tutorial
Official Android Developer Site
TheNewBoston Video Tutorial on YouTube
The best software to develop Android Apps would be
Eclipse - Juno - Either the Java or the JEE version (I personally use the Java x64 version)
Photoshop - for image editing
Illustrator - for SVG based image editing
There are instructions on the Android Dev Site on setting up Eclipse for App Dev
PS-im new so i cant post url's if u want the specific url's feel free to PM me

[Q] How to start coding

Hello, everyone. Can someone please direct me, an absolute beginner with no experience in programming at all, where to begin learning. I would like to ultimately develop for Android.
I'm running Ubuntu 13.04; how can I set up an environment to learn programming, and what are some resources that I can use?
Install jdk on the comp then on your phone download the app learn java in 24 hours it walks you thru making your first program so you get the basics
Hello, I'm pretty much in the same boot as the OP.
I'm working in the medical field and get bored of not having the app I need to ease up paperwork, so I decided to make them myself.
However, exept a hangman game in high school I never coded. So yesterday i took my old laptop, put some Ubuntu on it, the sdk and created the famous "hello word" app.
The problem is, even in the tutorials, some thing were to complicated, so I called upon my cousin (a german develloper) and he gave me some advices.
Especially, he told me that java was maybe not the easiest way to learn to code with 0 background and suggest me to try python and other things.
Do you have advices for me, since I want to build simple app (somes textfields, somes checkboxes to get scores and the ability to export a result sheet in pdf) at first, but i do not want to use app inventor or similar tools since I ultimately want to fiddle with the AOSP agenda (get the contact list to pop up like the invite list when i click "description field" , change default duration of appointements etc...).
Any ideas, suggestions, or tutorial are welcome, just keep in mind that I know nothing (Jon Snow like).
http://forum.xda-developers.com/showthread.php?t=2388486
Jus go here
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visit www.fb.com/softcrush
If you want to become a professional android developer then it is advisable to learn Java and XML a bit better,,and there are bunch of resources available on How to build android apps !
If you really want to become a Programmer then it is advisable to start from the beginning i.e C and then Java
Thats how everybody starts learning coding !
Go through video tutorials for understanding how the coding works !
Happy to help !
Sanjay said:
http://forum.xda-developers.com/showthread.php?t=2388486
Jus go here
.........................................
visit www.fb.com/softcrush
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This is a great list. I love to see my boy Derek Banas on there
alfredmuffin said:
Hello, everyone. Can someone please direct me, an absolute beginner with no experience in programming at all, where to begin learning. I would like to ultimately develop for Android.
I'm running Ubuntu 13.04; how can I set up an environment to learn programming, and what are some resources that I can use?
Click to expand...
Click to collapse
google it man you will thousands of website which will teach u programming for free. I would have put the links but dont wanna be treated as spammer
For now don't worry about making an app with the Android SDK or anything big like that. Just start simple with some little programs that print stuff into the terminal. It's a good thing that you have Ubuntu because Linux OS's are always great to learn programming on!
I'm also a noon and I found it easy to start with Batch on Windows and I have just been getting better and better!
Well I understand it's not easy to get started. One thing you will have to recognize that there's a lot of things involved getting prepared for Android programming. For example, while developing for Android you will need to be able to write a bit of XML as well, you will need to set up your IDE, get the necessary Java dependencies, get a little bit familiar with Maven to be able to use 3rd party libraries and so on. It's most definitely intimidating. So what I would recommend is to...
- Try to allocate time every day for learning this, even if it just means half an hour or less a day.
- Always take notes and don't be afraid to ask; nobody should assume you know the answer.
- Once you've learned something, help others to get ahead - seniors will probably recognize your efforts so you will be able to get help more easily.
- Try to talk about programming in person with people who are more proficient in it. Nothing helps as much as having a pro sitting in the same room, ready to help you.
- Try to join related communities as well, it can really speed things up.
- Baby steps. Many people get started in programming with having crazy big ideas only to meet failure later. It's not a good thing to frustrate yourself, so choose small goals first.
I can't emphasize the last point enough. Whenever you start learning new stuff - no matter whether you're a novice or an expert - you will need to focus on this, because the initial steps are always problematic. For example, when you start learning a new programming language: the syntax is new, the way for getting the app run is new, the IDE might be new, if the tool is web related then probably it uses a different kind of server than the one you're used to etc. etc. etc. so barriers all around. You must get comfortable with this first, then you will be able to speed things up.
How to start coding
How I started:
Basic Stuff:
1. Java, I used Java Complete Reference
2. Data Structures (most commonly used- Stacks, Queues, Linked list, HashMap, List) [Basic Understanding]
3. Algorithms (will help you to write efficient code) [Basic Understanding]
4. XML, just basic understanding is required, use internet to learn
Android Specific Resources:
1. The Busy Coder's Guide to Android Development [Very useful]
2. New Boston Videos
3. Android Cookbook, if you want a solution to a particular problem
Spend more time learning Java and other basic stuff, once your basics are clear, then you can easily adjust yourself on any platform.
Recommendations for Aspiring App Developers
Hi,
I was in your same shoes about 3 years ago so I can tell you what steps I took to start coding. I took the longer route but it was the correct route. Key suggestion is to learn the lower levels of coding first. (lower levels meaning base languages, binary being the lowest). Start with the C language as this is the core programming language which most other higher levels are based on. If you have the money take a structured online course on Udemy or CodeAcademy. If you're short on money and need to learn on your own don't worry there's plenty of resources out there to learn. That's how I did it. Start out with videos on youtube, try to find a complete structured course here's one with over 130 videos. Sorry, can't post links cause I'm new but just go to Youtube and type in "C Programming Complete Tutorial" to get the course with the structured 130+ videos.
The best way to learn any programming language is to find some free source codes in the designated languages and start tinkering, breaking and fixing the code. Once you learn this core language you will be able to programm\ desktop apps, simple software and mobile apps in other higher level programming languages.
Hope this helps.
-Jeff
alfredmuffin said:
Hello, everyone. Can someone please direct me, an absolute beginner with no experience in programming at all, where to begin learning. I would like to ultimately develop for Android.
I'm running Ubuntu 13.04; how can I set up an environment to learn programming, and what are some resources that I can use?
Click to expand...
Click to collapse
Hey Guys,
I love thenewboston website that you've pointed us to. But as a first step, should I learn some C or Java before progressing on to thenewboston Android tutorials?
I have no programming experience, but lots of motivation.
Thanks,
Donald,
New Zealand
Sanjay said:
http://forum.xda-developers.com/showthread.php?t=2388486
Jus go here
.........................................
visit www.fb.com/softcrush
Click to expand...
Click to collapse
recommend "head first java"

[Q] Book suggestion(s) needed (preferably German book(s))

Hello guys,
I wish to read about Android development or what I need to basically know anyways, if I would want to create, build, modify, add features etc. to rom's/kernels as well as coding apps.
I'm not looking for a simple way to archive this, I'm rather looking for learning about the real coding.
Would you be so kind and suggest me good book(s) for that?
Since I'm German, I'd preferable read German books, but if the best books are in English, then I'd rather go for English ones.
Thank you all in advance.
You'll have a hard time finding german books about android platform development.. At least I didn't find any.
Embedded Android by Karim Yaghmour is a pretty good reading to get into Android internals, the aosp and a custom device tree in the aosp.
But it assumes you have some knowledge about Java, C, C++ and the likes.
Edit: Also Android Internals: A Confectioner's Cookbook by Jonathan Levin gets often recommended though I didn't read it yet so I can't give you a personal opinion on it.
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