Using clojure in android [duplicate] - android

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Is it possible to program Android apps in Clojure?
Can anybody suggest a good tutorial or book, if it is possible?

Yes, here is main project I am aware of: https://github.com/remvee/clojurehelloandroid
And here is a little tutorial http://riddell.us/ClojureAndAndroidWithEmacsOnUbuntu.html though I would not be surprised if this tutorial is outdated, as it was over a year ago when I played with the code following this tutorial, and remvee's code has since been updated.
EDIT: see the update here from Stuart Sierra and the Clojure/core group: http://groups.google.com/group/clojure/browse_thread/thread/876c90d3ae353c61
"Clojure 1.2.0 works "out of the box"
on Android, but startup time is still
a problem. Some members of
Clojure/core have experimented with
ways to make this better, mostly by
selectively removing stuff that isn't
needed at runtime.
Follow
http://dev.clojure.org/display/design/Android+Support
for news. The last update was by Aaron
Bedra, a Clojure/core member, in
December 2010. I wouldn't say it's a
high priority right now, but neither
have people lost interest.
I personally would not recommend
writing an Android app in Clojure if
you intend to release it right away.
But if you're interested experimenting
with Clojure on Android and making it
better, then go for it."

Clojure benefits greatly from the android 2.2 JIT compiler which greatly improves class load times. Clojure creates lots of small classes which was taking 'forever' to load on previous android versions.
check out this 'in progress' work on a swank plugin for androiding with clojure

A new option for Clojure on android is ClojureScript.
ClojureScript compiles Clojure into JavaScript which you can then wrap in
an app. This bypasses the Dalvik-VM entirely and avoids the load time issues,
if your app is suited to javascript. many apps looking for more tight
integration with the platform can't use this approach. If your app
can live with out tight platform integration this could save you a lot of
time.

I know this is a bit old, but just in case someone stumbles on this, clojure on Android has come a long way since the answers above. The lein-droid and the Neko projects do make it a lot easier to write full android programs using clojure from begining to end.

This has been answered before. Yes, it is possible with a few minor hacks. However last time I tried it was extremely slow and very memory hungry. This was with Clojure 1.1 and Android 2.1. Things might have been improved since then.

Search for "Clojure REPL", "Clojure" or "Sattvik Software" in Android Market and you will find
an excellent REPL. I've been using it in my XOOM 1 Tablet, first with Android 3 and now with Android 4.0 without any problem.
If you search hard enough you will find programs for Java (Java IDE), Ruby (Ruboto IRB), Python, Lua, Perl, Javascript (SL4J for the last four, also SigmaScript for Lua), ISLisp (tiny-ISLispdroid), OCaml (OCaml Toplevel), Scheme, C, C++, C#, Pascal, Basic and even Forth!
I regret they still don't have one for Scala!

Related

cross platform 2d game engine choices that need to be [closed]

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Closed 9 years ago.
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I'm trying to make a 2d game and I want to code once deploy everywhere (ios/droid/linux/windows). Also, I don't want to pay $420 for a license; I need freedom.
So far, I have been looking at OpenFL, including HaxeFlixel (which builds on openFL), but its flash. Where is C++ in my life?
What other engines are like this?
Definitly Cocos2d-x, it's cross platform and works smooth.
There are millions of code samples and hint over the net.
Cocos2d-x | Cross Platform Open Source 2D Game Engine
UDK provides one of the most powerful game engines, Unreal Engine 3. It supports iOS and Windows mainly. Its free for a limited commercial use but please check it again since it might have changed the values. Last time I checked, they allow to us to earn 5000/= for free and then pay a royalty fee of 99$ per year. Unrealscript is the main language and allows C++ DLL binding.
Further, Unity engine provides powerful tools and portable to almost any platform. I am not familiar with its license. Please check it.
I lately found this Cafu engine which is powerful with many things. It is highly portable and currently it is written for OpenGL and OpenAL or FMOD and it is Open Source. Carsten is the man behind everything and he helps everybody in the forum, a very responsive person. Cafu is properly documented and totally C++ and Lua. Provides latest graphics since OpenGL is used. Bullet physics is currently integrated.
jMonkey Engine 3 is also another option. Portability is given since it is java. Its not slow as I suspected. They have rewritten lot of internal code of java api to make it run efficiently. Netbeans with VCS support is there. Various plugins are also available.
OGRE is a good graphics engine which is portable. But you will have to make your own game engine with it.
Torque3D and ShiVa are some other engines i reviewed. Personally i do not see much in them. Try them out if you are interested. They are lacking proper documentation and support according to some people i have talked to.

Is there Android support for Clojure? [duplicate]

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Closed 9 years ago.
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Is it possible to program Android apps in Clojure?
Can anybody suggest a good tutorial or book, if it is possible?
Yes, here is main project I am aware of: https://github.com/remvee/clojurehelloandroid
And here is a little tutorial http://riddell.us/ClojureAndAndroidWithEmacsOnUbuntu.html though I would not be surprised if this tutorial is outdated, as it was over a year ago when I played with the code following this tutorial, and remvee's code has since been updated.
EDIT: see the update here from Stuart Sierra and the Clojure/core group: http://groups.google.com/group/clojure/browse_thread/thread/876c90d3ae353c61
"Clojure 1.2.0 works "out of the box"
on Android, but startup time is still
a problem. Some members of
Clojure/core have experimented with
ways to make this better, mostly by
selectively removing stuff that isn't
needed at runtime.
Follow
http://dev.clojure.org/display/design/Android+Support
for news. The last update was by Aaron
Bedra, a Clojure/core member, in
December 2010. I wouldn't say it's a
high priority right now, but neither
have people lost interest.
I personally would not recommend
writing an Android app in Clojure if
you intend to release it right away.
But if you're interested experimenting
with Clojure on Android and making it
better, then go for it."
Clojure benefits greatly from the android 2.2 JIT compiler which greatly improves class load times. Clojure creates lots of small classes which was taking 'forever' to load on previous android versions.
check out this 'in progress' work on a swank plugin for androiding with clojure
A new option for Clojure on android is ClojureScript.
ClojureScript compiles Clojure into JavaScript which you can then wrap in
an app. This bypasses the Dalvik-VM entirely and avoids the load time issues,
if your app is suited to javascript. many apps looking for more tight
integration with the platform can't use this approach. If your app
can live with out tight platform integration this could save you a lot of
time.
I know this is a bit old, but just in case someone stumbles on this, clojure on Android has come a long way since the answers above. The lein-droid and the Neko projects do make it a lot easier to write full android programs using clojure from begining to end.
This has been answered before. Yes, it is possible with a few minor hacks. However last time I tried it was extremely slow and very memory hungry. This was with Clojure 1.1 and Android 2.1. Things might have been improved since then.
Search for "Clojure REPL", "Clojure" or "Sattvik Software" in Android Market and you will find
an excellent REPL. I've been using it in my XOOM 1 Tablet, first with Android 3 and now with Android 4.0 without any problem.
If you search hard enough you will find programs for Java (Java IDE), Ruby (Ruboto IRB), Python, Lua, Perl, Javascript (SL4J for the last four, also SigmaScript for Lua), ISLisp (tiny-ISLispdroid), OCaml (OCaml Toplevel), Scheme, C, C++, C#, Pascal, Basic and even Forth!
I regret they still don't have one for Scala!

Ruby practical for Android Development? [closed]

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I am trying to break into a bit of development and have been advised Ruby is quite an easy / powerful language to get started on.
My main hope for learning a programming language was to break into mobile development. I have heard Ruby can be used for Android development with the right 'kit' but is this a practical language to use for this or will it end up being a more long winded approach than just learning Java from the get go?
I recently read about Ruboto. You should check it out too!
Maybe you should be looking at http://rhomobile.com/?
Almost all the documentation on android development is focused on Java, and eclipse. While I'm not a big fan of Eclipse as an IDE (bloat); it is what the lot use, so it is what I use.
Where you'll find hardship with ruby is when you have to do something that is atypical.. something that is purely android. It will save you time in the beginning, however as with all high level languages, it will end up costing you more when you need to get "dirty"... The net result will be the same.
I program ruby/rails during my day job and android for my "unpaid". Both are good languages, but there are strings attached with any language.
Keep in mind also that the Android platform is Java supported.. In this you know if there are new features in OS 5..6..n then you can be sure there is a way to access them in Java. Ruby might be quick to integrate them, but then it depends on the developers (us) of Ruby. Also keep in mind that on some older devices 1.x..2.x there may be things that run slow when passed through ruby. (I don't know how it's interpreter works)..
Last note. If you learn Ruby for android, and you apply for a job programming Android, I'm betting they will expect Eclipse/Java not xxx/Ruby
Not very sure of Ruby , but you can surely use JRuby http://code.google.com/p/jruby-for-android/
If your goal is to learn mobile development on Android, I would highly suggest sticking with Java. The Android SDK is Java based, and the majority of documentation and examples (including the official docs) you find will be in Java.
While Ruby is a powerful language, it is primarily used for web development. You may have a difficult time finding documentation, and support when you're not using standard Android language.
It appears that Google mainly supports using Java with Eclipse. While you probably could do it with Ruby, I think your best bet is to just use Java and Eclipse.

Clojure on Android [closed]

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Questions asking us to recommend or find a tool, library or favorite off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it.
Closed 9 years ago.
Improve this question
Is it possible to program Android apps in Clojure?
Can anybody suggest a good tutorial or book, if it is possible?
Yes, here is main project I am aware of: https://github.com/remvee/clojurehelloandroid
And here is a little tutorial http://riddell.us/ClojureAndAndroidWithEmacsOnUbuntu.html though I would not be surprised if this tutorial is outdated, as it was over a year ago when I played with the code following this tutorial, and remvee's code has since been updated.
EDIT: see the update here from Stuart Sierra and the Clojure/core group: http://groups.google.com/group/clojure/browse_thread/thread/876c90d3ae353c61
"Clojure 1.2.0 works "out of the box"
on Android, but startup time is still
a problem. Some members of
Clojure/core have experimented with
ways to make this better, mostly by
selectively removing stuff that isn't
needed at runtime.
Follow
http://dev.clojure.org/display/design/Android+Support
for news. The last update was by Aaron
Bedra, a Clojure/core member, in
December 2010. I wouldn't say it's a
high priority right now, but neither
have people lost interest.
I personally would not recommend
writing an Android app in Clojure if
you intend to release it right away.
But if you're interested experimenting
with Clojure on Android and making it
better, then go for it."
Clojure benefits greatly from the android 2.2 JIT compiler which greatly improves class load times. Clojure creates lots of small classes which was taking 'forever' to load on previous android versions.
check out this 'in progress' work on a swank plugin for androiding with clojure
A new option for Clojure on android is ClojureScript.
ClojureScript compiles Clojure into JavaScript which you can then wrap in
an app. This bypasses the Dalvik-VM entirely and avoids the load time issues,
if your app is suited to javascript. many apps looking for more tight
integration with the platform can't use this approach. If your app
can live with out tight platform integration this could save you a lot of
time.
I know this is a bit old, but just in case someone stumbles on this, clojure on Android has come a long way since the answers above. The lein-droid and the Neko projects do make it a lot easier to write full android programs using clojure from begining to end.
This has been answered before. Yes, it is possible with a few minor hacks. However last time I tried it was extremely slow and very memory hungry. This was with Clojure 1.1 and Android 2.1. Things might have been improved since then.
Search for "Clojure REPL", "Clojure" or "Sattvik Software" in Android Market and you will find
an excellent REPL. I've been using it in my XOOM 1 Tablet, first with Android 3 and now with Android 4.0 without any problem.
If you search hard enough you will find programs for Java (Java IDE), Ruby (Ruboto IRB), Python, Lua, Perl, Javascript (SL4J for the last four, also SigmaScript for Lua), ISLisp (tiny-ISLispdroid), OCaml (OCaml Toplevel), Scheme, C, C++, C#, Pascal, Basic and even Forth!
I regret they still don't have one for Scala!

Any collaborative tool/website to localize an Android app? [closed]

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Closed 9 years ago.
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My open source Android application has internationalization done the Android way, with strings.xml files.
The community has many people from many countries, and they are willing to contribute/improve translations using a collaborative website.
There is Launchpad but it only supports the gettext format so we would have to use scripts, not very convenient.
What website is convenient for translating open source Android applications?
Anybody must be able to start contributing without any sort of prior approval.
One tool was not yet listed so far - Weblate. It has native support for Android string resources and is already used for several apps (for example OsmAnd). Though it requires you to use distributed version control system (preferably Git).
I opted for Crowdin. It allows the admin to upload the XML files, and then anyone can translate to any language.
Translated files can be downloaded in a ZIP archive.
It is free for Open Source projects.
The UI used to be really slow, but it has got better recently.
I've written a tool to convert between Android XML resources and .po files:
http://blog.elsdoerfer.name/2010/04/08/android2po-managing-android-translations/
http://github.com/miracle2k/android2po
I'm using this myself with Pootle, and it works well enough, though I'm not really all that happy with the Pootle UI. Crowdin is in fact much better in that regard.
Here is a small tool I've developed: http://www.lokaligo.com/.
Probably not perfect, but for me, for now does the job.
Localize your apps and content more easily – Android Resource (.xml) formats now supported in Translator Toolkit [1]
http://translate.google.com/toolkit
[1] http://googledevelopers.blogspot.nl/2012/03/localize-your-apps-and-content-more.html
See Get Localization http://www.getlocalization.com, it integrates with Eclipse.
Amanuens.com has also support for android builtin, is free in 2011, syncs with your repo, but personally I dislike the editor.
Pootle is a great localisation platform with many features and support for many formats. The upcoming version supports even more formats and adding new formats is very simple.
Transifex is a really good tool for collaborative translation. It offers paid plans, a free demo for 15 days and is free for open source projects.
I use Androglot.com, its quite early stage but promising, free and open to anyone, supports Android string.xml files (and string-array) without restrictions...
I found MyGengo's String, which has native support for Android string resources. They're still a little buggy, but they have a slick interface. They're free for public projects.
Are there any others that have sprung up since last year? (please post as a new answer, not a comment to this answer)
I've started using android2po with a Drupal-based translation tool.

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