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i want to start making apps for android but dont know where to stat i have the sdk on my desktop but thats about it. If someone could please help me or push me in the next step please do so.
Just go to the dev guide on the Android website to start making your first Hello World app. As for language, Android (I could be wrong) uses Java. Again, I could be wrong.
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Indeed, Android uses Java. I'd suggest learning it before attempting to program for Android or else you'll feel like it's gonna be too difficult. There's plenty of books on Java, and some powerful Google searching will lead you to step-by-step guides to learning Java.
Also, go through the Android Dev Center for a lot of information. There's plenty of guides there on things like 'how to design your app to flow with the overall android feel' and 'designing icons to fit general android homescreen look'.
You're gonna want to download Eclipse for Java Programming. It's a free Java development environment much like Dreamweaver and Visual Studio are for web development.
Oh, and PLAN! Like any good development project, your project will not get anywhere if you don't know where to start and when to end it.
Plan first. Then plan the planned elements. Java is object-based programming, and just like building a house each object needs to be solid or else it'll crumble to pieces.
Same here. Thx for the advice.
elindemann said:
Indeed, Android uses Java. I'd suggest learning it before attempting to program for Android or else you'll feel like it's gonna be too difficult. There's plenty of books on Java, and some powerful Google searching will lead you to step-by-step guides to learning Java.
Also, go through the Android Dev Center for a lot of information. There's plenty of guides there on things like 'how to design your app to flow with the overall android feel' and 'designing icons to fit general android homescreen look'.
You're gonna want to download Eclipse for Java Programming. It's a free Java development environment much like Dreamweaver and Visual Studio are for web development.
Oh, and PLAN! Like any good development project, your project will not get anywhere if you don't know where to start and when to end it.
Plan first. Then plan the planned elements. Java is object-based programming, and just like building a house each object needs to be solid or else it'll crumble to pieces.
Click to expand...
Click to collapse
Actually, you're doing things the hard HARD ...HARD way....
if you want to develop apps for android, Titanium Mobile (appcelerator.com) is the best way to go. It takes far less time to learn JavaScript , CSS and HTML then it does to learn pure JAVA, and then learn to implement Android's API.
There are a few things that Titanium Mobile can't do, but they are always working on it to make it better. And of course - it's free
I've made a few apps using it. Including an HTML eBook reader, Chinese Flashcard App, and a Simple Chat Client.
Their JavaScript API takes a bit to get used to, but after that, you can easily spit out a simple app in about a day or so.
I have a web-app Template that lets me dump a Web-app (html/css/js) into a project, and spits out a nice new shiny Android app ready for the market.... I also wrote code that lets you access the Menu Button on android too. So it's not like using PhoneGap where it's just a Browser session with an icon on your phone.
PM me if you're interested, and i'll show you everything i learned about Titanium Mobile so far (i'm still learning actually). Or if you want an app done, i can do it for you... free if it's easy enough
DaoMingJin said:
Actually, you're doing things the hard HARD ...HARD way....
if you want to develop apps for android, Titanium Mobile (appcelerator.com) is the best way to go. It takes far less time to learn JavaScript , CSS and HTML then it does to learn pure JAVA, and then learn to implement Android's API.
There are a few things that Titanium Mobile can't do, but they are always working on it to make it better. And of course - it's free
I've made a few apps using it. Including an HTML eBook reader, Chinese Flashcard App, and a Simple Chat Client.
Their JavaScript API takes a bit to get used to, but after that, you can easily spit out a simple app in about a day or so.
I have a web-app Template that lets me dump a Web-app (html/css/js) into a project, and spits out a nice new shiny Android app ready for the market.... I also wrote code that lets you access the Menu Button on android too. So it's not like using PhoneGap where it's just a Browser session with an icon on your phone.
PM me if you're interested, and i'll show you everything i learned about Titanium Mobile so far (i'm still learning actually). Or if you want an app done, i can do it for you... free if it's easy enough
Click to expand...
Click to collapse
Wow, I'm very interested. I might check it out.
sent from my pimp hero running Froyo CM6 and the XDA app
If you know the C or C++ language you could try out MoSync, depends what you like, some programmers like the level of control and speed you get from C++. If your content with simpler apps then maybe phonegap or appcellerator for you.
I guess that when mobile apps get more sophisticated javascript programs will be just as complex as C++ programs.
Thats my view, but then I like C++ better.
/Tony
MoSyncTony said:
If you know the C or C++ language you could try out MoSync, depends what you like, some programmers like the level of control and speed you get from C++. If your content with simpler apps then maybe phonegap or appcellerator for you.
I guess that when mobile apps get more sophisticated javascript programs will be just as complex as C++ programs.
Thats my view, but then I like C++ better.
/Tony
Click to expand...
Click to collapse
It really depends on how much control and you really need. If you're going to write games, then you do need speed that C++ and the Native Application Development API on android can give you. If you're writing a social networking app, the speed of C++ would really be an overkill.
As far as i've read, PhoneGap still has a lot of issues. And the build process is a bit more complicated than on Titanium Mobile.
If you're just using the regular Android API to write apps, i don't notice a lot of difference in speed execution between writing it in pure Java, or using Titanium mobile (using native code and UI elements - i don't mean putting everything into a WebView).
The current app that i'm writing now i don't think can be written using Titanium Mobile or PhoneGap (unless i added some native functions and did my own fork of PhoneGap).
More or less, i'm writing an App for Android and JRE/Linux systems that will allow me to enumerate, and access USB status bits, and USB data frames of a given USB device, and then allowing that USB device to be accessed through a TCP or UDP connection.
I might be able to do this with Titanium Mobile, but i don't think i can. As the only files you're allowed to access are on the SD card, application data directory, and temp directory.... i think there's one other place you're allowed to access too, but i never used it. However later today i might just try to see if i can access the /Dev/DSP01 (aka sound card) on an android device. If i can, i think i could write it using titanium mobile. I'm already halfway done with this app in pure java, so i wouldn't actually rewrite it in Titanium Mobile now.
DaoMingJin said:
if you want to develop apps for android, Titanium Mobile (appcelerator.com) is the best way to go.
Click to expand...
Click to collapse
Thanx mate!
If you looking a book or something to teach you the basics Beginning Java Programming for Dummies and Android Application Development in 24 Hours are good reads.
I'd rather not fill the forum with more threads so I'm just going to ask my question here. What is the best way to read the android dev guide on the device itself? Just going to the site directly? Ideally I'd like a pdf or something designed to be read on a small screen. The site can have formatting issues when read on a small screen.
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I've been developing for a long time (nearly 30 years), and whenever I need to learn a new language I start with the Sams range, "Teach yourself whatever language in X days/hours". They're pretty good and this is available for Kindle, which is great if you use the Amazon Kindle app...
http://www.amazon.co.uk/Teach-Yours...1_fkmr2_2?ie=UTF8&qid=1287485537&sr=8-2-fkmr2
It obviously costs, but I really do rate those books as brilliant starting points. The rest is google and friends on here.
Hope this helps - good luck mate.
Personally, I've been coding in Java for what... four years now? I'm feeling dwarfed here by johncmolyneux but honestly, the best way to learn is to not use an IDE like Eclipse, but to use something that you have to hand-code everything yourself, such as Geany! You learn fairly quickly after writing a few applications.
If you are thinking "titanium", "mosync" or "phone gap" it is worth doing a bit of background research. There are several extremely powerful tools out there that can help you build cross platform apps - these are among the top ones.
bit more discussion about this here: http://forum.xda-developers.com/showthread.php?p=16703287#post16703287
There are a few useful reports comparing them - check out ours by googling "triballabs cross platform"
The Google App Inventor makes it pretty easy to create your own Android apps. Best part is you don't need to learn any programming languages. You won't be creating anything too complicated like a video game for example, but it's a good start nonetheless.
http://appinventor.googlelabs.com/about/
If you want to learn the basics of Java, then please check out a book called as "Head First Java". They really explain the basics with the help of real life examples to make things much simpler so that people understand.
Beginner app projects
I'm also just getting started with app development. Something I've been looking for is a beginner app project. Wish I could find a walkthrough of a simple app like a game of Hangman or something like that. I've been through the android developer training web site and got some good info but some things I'm still a little stuck on. Id Love to see an actual app (rather than just a mock up of some fields and buttons) and then a slightly dumbed down explanation of the code. Might be a lot to ask but man it would be great!
Hey im a programming student in my second year and ive been wanting to play around with some android development (mostly because my school doesnt teach java or php. Im pretty experienced with visual basic and C#. But my questions is can someone help me out with a link to or something where I can take a look at some open source code for some android apps? It can be as simple as tic tac toe I dont car. Im just basically doing some research myself. Also is eclipse the best compiler for android development? Thanks
You can find quite a number of examples under 'Resources' on developer.android.com.
You may be interested to know that Eclipse is not a compiler, it is an Integrated Development Environment (IDE). What is better or not is largely a personal preference, but starting out you are likely to find more tutorials assuming you use Eclipse than anything else.
Source of pre-installed Android Appliaction is open. And you can program with eclips for Android App.
Sent from my LG-SU760 using XDA
Android is open-source, but not the apps.
You can run Eclipse, and create a new project from existing samples. You will be able to choose from a list (this samples come from the sdk, if you downloaded them).
There are some games (snake, ...) and demo apps like API demos.
And Eclipse is very good for Android development, especially if you use the plugin ADT tools.
I am more than happy to have all the eyes I can on my code. I would post a link, but (no rant here)...
AWOL: ArchWiki Offline
by
Tetractys Productions
Search for this on the Google App Store with search term "archwiki".
The code isn't great as I am a novice with both Java and Android, but you will find use of Activities, WebViews, Menus, using external Jars and perhaps a little more. If your scholarly background leads you to make a suggestion or two... please do.
Also... don't buy most of the books. They suck. The "cookbooks" seem pretty good and the Android Developer Documentation and Stackoverflow are your friends. I wasted enough money on Android books I will never read. Hope you don't fall for that too.
Rant:
10 post requirements encourages low quality posts. Perhaps its a good trade-off, but from where I'm sitting I'm drinking HaterAde.
Here are links to several free online courses designed to help you learn mobile development. Reply here if you know of any good ones that I missed. If you have comments or experiences to share about any of these, please start a new thread to discuss.
“Computer Science 164: Mobile Software Engineering” is a Harvard University course using Javascript, HTML5, Objective-C, and PHP, and to teach you how to build mobile web apps (along with some native iOS development). The online course includes all video lectures, study sessions, slides, source code, etc. This is the follow-up to another Harvard class available online: “CS 50 – Introduction to Computer Science”.
“Computer Science E-76: Building Mobile Applications”, a Harvard University Extension course, covers Android and iOS, including writing native apps for Android using Eclipse and the Android SDK. Lecture 2 is a Java primer and lectures 3 – 6 cover aspects of Android development.
Google’s Android development training course includes ten modules covering everything from graphics and animation to security and monetization.
“Introduction to Programming in Java” is an MIT OpenCourseware class offering lecture notes and downloads of java programming assignments. You can see a full list of free MIT online comp sci courses here.
“Android Application Development” was taught at CalPoly in Summer 2010. Not as complete as some of the Harvard courses, the site offers basic instruction on building basic apps.
Neither Udacity or Coursera has a mobile-specific course yet, but both include amazing classes on web application development.
Codeacademy offers several courses on web and application (non-mobile) development. Topics include PHP, jQuery, JavaScript, Python, and Ruby.
"The Java Tutorials" on Oracle's site are about general Java development and are not Android-specific.
XDA’s “How to Build an Android App” series by Adam Outler.
Treehouse Library beginner courses teach you how to build simple apps.
For Android App development, I would strongly advise:
The New Boston - Android Tutorials
For Java basics:
The New Boston - Java Tutorials
The tutorials are done by Bucky and Travis and these guys are very good. They take you through the learning step by step.
Also. When you come across problems, the main Android Developers site is very good, but I've also found Stack Overflow very helpful.
I started using the tutorials with no Android or Java knowledge at all and I've used what I have learned to make a couple of basic soundboards so far and other bits and pieces, but what they teach you gives you the potential for a lot more.
You can see the apps I've made Here (Google Play) and Here.
This one's good for both C and C++
http://www.cprogramming.com/
And this one for C, pretty well explained and my favourite
http://www.howstuffworks.com/c.htm
How can I watch those Harvard lectures, they seems to be locked, are they free
Found this putzing around the internet at work. Very engaging lectures, never talks in monotone, and explains things in a simple to understand format.
From Stanford, almost all the material is provided (lectures, handouts, assignments, exams, etc), and all the videos are downloadable through iTunes or YouTube.
Not android specific, but gives a solid groundwork on the Java platform.
Best of all... FREE
http://see.stanford.edu/see/courseinfo.aspx?coll=824a47e1-135f-4508-a5aa-866adcae1111
I'm currently following Google’s Android development training course and came here looking for an ebook of these pages. I want to read these on my phone while I travel.
Does anyone know of such an ebook on Google books or any other 3rd party website?
Also, a tool that can convert these webpages into a static ebook will also do. I just need them to be available for offline reading.
Thank You
Guys try Barbara hecker on YouTube .excellent latest university level courses on android. Total 15 hours I guess.
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Kaiyes said:
Guys try Barbara hecker on YouTube .excellent latest university level courses on android. Total 15 hours I guess.
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
+1 for Barbara Hecker's ITU lecture series all posted on YouTube. Its about 25 1hr lectures in Android Development all posted within the last few months so very current. Easily the best Android learning tool I've found so far on the web.
The new boston video series is good but way too out of date (2009). Android has come a long way in 3 years.
Ya that's the most recent I could find. The proprietary screen casts like Lynda.com, tutsplus, video2brain and others are also worth looking into. I certainly learned a lot from them. Also, its worth looking into phonegap. It let's us use javascript-css-html to create apps for all platform like iOS, android, blackberry and so on.
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please share links for
Minimum skills / sources required before writing android apps
Understanding android operating system
how to code some easiest android applications to boost confidence amongst new persons.
Thanks
Use jquery mobile and phonegap. You can make apps within 1 hour or even less. Just get some video tutorial from youtube or lynda.com or someplace similiar. There are a ton of them. Youtube jquery mobile , phonegap.
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Kaiyes said:
Use jquery mobile and phonegap. You can make apps within 1 hour or even less. Just get some video tutorial from youtube or lynda.com or someplace similiar. There are a ton of them. Youtube jquery mobile , phonegap.
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
is it important to understand how operating system works ?
Kaiyes said:
Use jquery mobile and phonegap. You can make apps within 1 hour or even less. Just get some video tutorial from youtube or lynda.com or someplace similiar. There are a ton of them. Youtube jquery mobile , phonegap.
Sent from my Nexus 7 using Tapatalk 4 Beta
Click to expand...
Click to collapse
that fine for basic apps but if you want to add any complexity you really need to know android programming (java/eclipse etc). i dont think sending people down this easy path is going to help them become android developers.
Coursera does now have a course for Android Programming. It uses the Processing 'language' and teaches fundamentals such as the accelorometer, basics of a physics engine ( BoxWrap2d) and image and sound manipulation. I have almost finished this run of the course, and its a good starter for people who are interested in learning how to develop for Android.
The downside to the course though, if you don't have any knowledge of programming at all, I think you might struggle a little bit. (Just my opinion.)
Search for 'Creative Programming for Digital Media & Mobile Apps'
Like i said, its good for simple informative type apps for most of the major platforms at once. But its not for complicated apps like games/kernel. However i do think there is a big untapped market for sector specific informative type apps. Take medical sector, most of the apps doctors need gotta help them remember & docs will buy em. I saw simple jquery mobile type apps selling for £15. Also, if you are good at JavaScript, then you can basically carry your "app" over to all platforms. That's the catchy bit I guess. Its also easier for web devs to hack at mobile software market without having to learn a whole new language. Having said all that, Java is still one of the top languages there.
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great android app developement youtube tutorial series
This guy is awesome!
His rapid for style allows us to learn more in a shorter amount of time, without dieing of boredom.
The tutorials were designed to familiarize us with the basics in the beginning, then to help us gain and retain a better understanding of how to develope apps.
You may feel overwhelmed by all of the information being shot of at you at such a rapid fire rate, but rest assured that as you progress through the series, things will make more and more sense to you.
I highly recommend that anybody that is new to developing Android apps, or that anyone who wants a refresher course, that doesn't feel like being bored out of their mind by long, drawn out, agonizing courses, check this out.!
Here's the link to the entire Android app developement tutorials.
http://www.youtube.com/watch?v=boj0f_O3i88&list=PLGLfVvz_LVvQUjiCc8lUT9aO0GsWA4uNe
Enjoy!
The New Boston.
On youtube Runs a Channel.
Provides 200 tutorials in android app development and also Other Valueable Sequel Tutorials. ...
----------Signature---------
Need Some Cool Guides Visit Hmpshah Guides
These Android tutorials by Vogella are also good.
http://www.vogella.com/android.html
As far as I get it, if you know Java well enough that you rate yourself > 6 out of 10 as a Java programmer, Android app development should be easy for you.
The ice is broken. On Coursera on 21-th January starts "Programming Mobile Applications for Android Handheld Systems".
Game Development Days
If you like game programming, I have started a guide a while ago:
Game Development Days
The guide walks you through the development of a 2D game engine, and covers side information around it.
Thought it could be useful here
Hey all,
I'm pretty new to android development and I was curious if anyone could tell me the benefits of learning C++ alongside Java (specifically while working with Android).
My first project that I'd like to accomplish seems a little arduous, though I do have help. I'm attempting to create an app that is used to catalog clothes, but also parses image data to detect the colors. In this way, it will be (hopefully, by some means) possible to have the app help match the clothes for the user. The inspiration for this is my extreme colorblindness.
Anyone who potentially has feedback regarding interpreting data from the camera on Android, feel free to pitch your two cents.
Read this. May help you. http://forum.xda-developers.com/showthread.php?t=2225668
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ScatteredHell said:
Read this. May help you. http://forum.xda-developers.com/showthread.php?t=2225668
Sent from my SonyX8 using Tapatalk 2
Click to expand...
Click to collapse
Thanks so much!
Sent from my HTC One using xda app-developers app
not sure you need c++ for your project
My experience with C++ (using Marmalade) is that if you need a lot of UI, than you are better off with the Java framework. Designing UI with Marmalade is a real pain. It's great for power hungry games and apps, but not for UI.
If you absolutely need to use C++, my advise it to start with the native Java and NDK, and only if you're not satisfied, look elsewhere. Even in Marmalade, which is supposed to be cross-platform, you will reach the point, too quickly in my opinion, in which the SDK doesn't give a cross platform solution to what you want (say use a downloaded third-party sdk, or request some OS function that the SDK does not offer), and you will have to implement specific OS "EDKs", so will have to know your native coding anyway.
Hi,
you should try Qt, though you need the android sdk/ndk, Jdk and Ant as well, but it works.
jrdemasi said:
Hey all,
I'm pretty new to android development and I was curious if anyone could tell me the benefits of learning C++ alongside Java (specifically while working with Android).
My first project that I'd like to accomplish seems a little arduous, though I do have help. I'm attempting to create an app that is used to catalog clothes, but also parses image data to detect the colors. In this way, it will be (hopefully, by some means) possible to have the app help match the clothes for the user. The inspiration for this is my extreme colorblindness.
Anyone who potentially has feedback regarding interpreting data from the camera on Android, feel free to pitch your two cents.
Click to expand...
Click to collapse
Get a book from fipkart to lear this. "Android Devlopment"
jrdemasi said:
Hey all,
I'm pretty new to android development and I was curious if anyone could tell me the benefits of learning C++ alongside Java (specifically while working with Android).
My first project that I'd like to accomplish seems a little arduous, though I do have help. I'm attempting to create an app that is used to catalog clothes, but also parses image data to detect the colors. In this way, it will be (hopefully, by some means) possible to have the app help match the clothes for the user. The inspiration for this is my extreme colorblindness.
Anyone who potentially has feedback regarding interpreting data from the camera on Android, feel free to pitch your two cents.
Click to expand...
Click to collapse
I would choose for this between two options: develop entirely in Java except for the portions that are computationally heavy, which can be implemented in C/C++ using JNI glue code. Or you may implement everything using a C++ based framework, like Qt, both for the creation of the UI and of the rest of your application. With Qt of course, the specific UI portion can be written using QML, which might be faster.
const_char said:
I would choose for this between two options: develop entirely in Java except for the portions that are computationally heavy, which can be implemented in C/C++ using JNI glue code.
Click to expand...
Click to collapse
I second this, with the sidenote that you should only use C/C++ if the computationally heavy code is actually time-critical.
I mean, at first glance, your project sounds like it won't be very taxing on the CPU anyway. So having a full Java version may still be fast enough, and the user wouldn't even know the difference. In that case C/C++ is not worth the trouble (JNI is very ugly, and you shouldn't use it unless you really have to).
C++
I think C++ is not for suitable for this application. Although i did not use it. But you may first take some tutorial then you can start. When face problem then discus this forum. I am sure somebody may help you.
Sorry for my English.
Thank you
you can get pixel color use this sample code.
jrdemasi said:
Hey all,
I'm pretty new to android development and I was curious if anyone could tell me the benefits of learning C++ alongside Java (specifically while working with Android).
My first project that I'd like to accomplish seems a little arduous, though I do have help. I'm attempting to create an app that is used to catalog clothes, but also parses image data to detect the colors. In this way, it will be (hopefully, by some means) possible to have the app help match the clothes for the user. The inspiration for this is my extreme colorblindness.
Anyone who potentially has feedback regarding interpreting data from the camera on Android, feel free to pitch your two cents.
Click to expand...
Click to collapse
you can get pixel color use this sample code.
String imageUrl = SOME_IMG_URL;
InputStream in = new java.net.URL(imageUrl).openStream();
Bitmap bitmap = BitmapFactory.decodeStream(in);
int pixel = bitmap.getPixel(x,y);
and.
int red = Color.red(pixel);
int blue = Color.blue(pixel);
int green = Color.green(pixel);
you can get average color value of SOME_IMG and you can catalog this.
it seems easy!
Hi Folks,
I'm hoping to develop some gear fit apps but have no Idea which development environment to use. Can enyone help?
Many Thanks
BPM
Use android studio with an sdk, wchich you will find in dev section
I spent a few days over my last vacation writing an app (really a watchface). I used Tizen Studio (which is Eclipse under a coat of customizations). Rayman96 says to use Android Studio but I'd be surprised if that works given that the GF2 runs Tizen, not Android.
You can write your app either as a native C++ apps or as a webapp. I opted for a webapp since (a) it has all the capabilities I needed and (b) my C/C++ skills are probably a bit rusty at this point. It all pretty much works like you'd expect. There's a certificate you need to install and Studio comes with (or, more precisely, will download for you) a tool to request it. After that you use the Devices tool it comes with to find your GF2 on the network and then just push it to the device, very easy.
One note though: as of a week or so ago there was no emulator and proper app templates for the GF2... what's there is all geared (hehe) towards round watches. So, what I wound up doing it writing my app and testing it in Firefox, got it working there and THEN sent it to the device and dealt with any (pretty minor) issues there. It's not the best workflow, but it works. As a webapp, it more or less works like you'd expect, though depending on what you're writing you'll need to use the Tizen APIs, which obviously you won't have on Firefox or Chrome, so you'll need to stub them out somehow or just develop on device only, which is a hassle (no debugging that I could see for one thing).
Also, word of advice: always uninstall your app before pushing an updated version. It's a hassle, but what I found is that if you don't you'll wind up hanging Tizen Studio and have to restart it, and often times the GF2 as well.