Database Users

Python on WM5?

I'm working with a team considering this - any thoughts? Any pointers to previous discussions are welcome, but I didn't see any. Also, even if advice is don't do it, any ideas or suggestions for optimization would be great. HW is Apache. Thanks in advance, Jeff

umm hate to point out the obvious but its been done, there is a port of python IDLE available already
as seen here
http://sourceforge.net/projects/pythonce

Sorry - should have been more clear - we're looking at developing Python apps on top of that port. I'm curious as to whether people have any suggestions on how to improve performance of Python apps running on Windows Mobile.

You should as those sort of questions on the PythonCE Mailing List:
http://mail.python.org/mailman/listinfo/pythonce

Python is just a bitza of C and other languages such as ruby etc.
what would you want to do with it on windows mobile that you can do in those anyway?
im currently developing an online game (as part of a larger project and for windows/ linux/ mac) and it is quite usefull, but to establish it on a new platform would require a bit of ground work. i have been able to run some scripts ive written for the desktop on the CE version but it is limited to what it can do.

Fastest/Lightest way to code WinMo?

Hi,
I'm the author of a fairly popular j2me chat application, and I've been pondering making a native WinMo version for a while now. I've thought about a .net port, as it would probably be easiest, but all the .net programs I've used seem dead slow. Or am I totally off base with that?
Is there another environment I should look at as an alternative? Keep in mind, I don't have visual studio.

jonnycat26 said:
Hi,
I'm the author of a fairly popular j2me chat application, and I've been pondering making a native WinMo version for a while now. I've thought about a .net port, as it would probably be easiest, but all the .net programs I've used seem dead slow. Or am I totally off base with that?
Is there another environment I should look at as an alternative? Keep in mind, I don't have visual studio.
Click to expand...
Click to collapse
You can still stick with j2me, you'll just have to change a few things to make the program compatible with the java midlet managers for WinMo. You should read up on the Mildet Bible: http://forum.xda-developers.com/showthread.php?t=339579
Hope this helps

From testing open source apps and they ones I have made I found that C++ is faster and c# is easier but a little slower. I used c++ for along time but have moved on to C# and love it.

u can just develop in any .net language, then use tool like SmartAssembly to optimize and convert the code to binary.

jonnycat26 said:
Hi,
I'm the author of a fairly popular j2me chat application, and I've been pondering making a native WinMo version for a while now. I've thought about a .net port, as it would probably be easiest, but all the .net programs I've used seem dead slow. Or am I totally off base with that?
Is there another environment I should look at as an alternative? Keep in mind, I don't have visual studio.
Click to expand...
Click to collapse
Hello, I strongly recomend to use c++ for winmo dev.
cheers,
Hlov

The fastest and leanest method is C++, available in Visual Studio Professional, or as a standalone free download as Embedded C++ version 4. The development models are MFC, (Microsoft Foundation Classes), ATL (Active Template Library), or good old fashioned WIN32.
Of these WIN32 is the leanest, all the others, including .NET are wrappers around it. If you haven't used or seen WIN32 before, expect a pretty steep learning curve. Look at the Hello World example it generates, to try and figure out what the hell is going on. Basically you respond to WM_XXXXXX messages fired at your application by the operating system. Limit the main menu to two items, and WinMo 5/6 will display it correctly, with the main menu options either side of the keyboard/SIP icon, and accessible by the left and right menu buttons. Otherwise it will switch to a WM 2002/3 menubar, which you then have to click on to use.
If you want to go any lower down than this, you will need to brush up your ARM assembly language.

Unless you are developing graphics intensive applications, using c# is fine for applications. C++ is necessary if you are writing games and the like but the SLIGHT performance decrease is not that big of a deal otherwise.

Soul_Est said:
You can still stick with j2me, you'll just have to change a few things to make the program compatible with the java midlet managers for WinMo. You should read up on the Mildet Bible: http://forum.xda-developers.com/showthread.php?t=339579
Hope this helps
Click to expand...
Click to collapse
I'm using J2ME polish, so I can (and have) built a build specifically for WinMo, but I want a native version so I can multitask (can't do that with Esmertec) and I'd also like to develop a homescreen plugin.
My app is here:
http://www.buildhigh.com/jonnychat/
If anyone has any suggestions on what I should do with a port, I'd love to hear them.

stephj said:
The fastest and leanest method is C++, available in Visual Studio Professional, or as a standalone free download as Embedded C++ version 4. The development models are MFC, (Microsoft Foundation Classes), ATL (Active Template Library), or good old fashioned WIN32.
Click to expand...
Click to collapse
It's been a long time since I've done standard Win32 development, and I really don't plan on going back down that road again. For starters, I imagine Visual Studio would be a dog in a VM (I only run windows in a VM these days, won't run it on actual hardware if I can avoid it).
It's looking like I"m going to try C++ or C# for this. I'd like to do C# because that's pretty close to Java, but I also have moral qualms about using a language designed to usurp a good and popular language just because MSFT didn't develop it.
Decisions, Decisions....

You can also try using Ruby with the Rhodes framework: http://www.rhomobile.com/home
Or you can try using Mysaifu which may allow multitasking (haven't tried any of my programs on it yet): http://www2s.biglobe.ne.jp/~dat/java/project/jvm/index_en.html

Jython in Android?

Hey Folks,
I was wondering if anyone knew if it was possible to use Jython instead of plane Java for android development? I don't know much about Java development but I'm with Python. I was figuring that this might ease me into it better. Any thoughts?
Thanks,
-=GB=-

Have you had a look at the Android scripting environment?
http://code.google.com/p/android-scripting/
http://google-opensource.blogspot.com/2009/06/introducing-android-scripting.html
http://code.google.com/p/android-scripting/wiki/PythonAndroidAPI
Regards,
Akshay

Thanks aksd,
I don't know how I didn't find that before. Perhaps I should have just searched for Python and Android as opposed to just Jython and androind.
Anyway, this is very cool for prototyping and simple scripting. However, the main thing I was hoping for was writing apps in Python (via Jython) that could then be distributed on the Marketplace. It's kind of to bad. It doesn't look like anyone is really trying to port Jython to Android because ASE is sort of Google's official response to the whole thing. On the whole, a really great thing for people who just want to script Android but not really for App development.
In all of this searching I did find some interesting information about how to link in C libs so you could code some of the hardcore speed sucking elements in C (like a game engine) and then make calls into it via Java. I didn't know that was even possible so... Pretty cool stuff.

Hey ngrava,
I'm not much into scripts, so dont really follow whats happening with scripting and Android.
If you wanted a bit of a performance gain you can use the NDK and call the JNI to execute native libraries or code. been there for awhile but few use them. Java is just so much easier than C .
Theres a lot of interesting stuff going on on the Android platform, Mono being ported to Android, Scala being ported to Android, I'm actually currently working on profiling the performance of scala code on android.
Regards,
Akshay

On the Google DevFest on Argentina, Google´s ingeneers afirmed that they are working to make more languages availeable on Gingerbread, they specifically mentioned Ruby. We just have to wait to see if this is true and if we are going to be able to ship apps of other languages to the market, and I´m not sure if they will be backwards compatible with earlier versions of android as well.
PD: Oops, sorry for reviving this old post, I just realised i clicked last page instead of next

[Q] How to change JAVA applications into Android Applications

So I have an application ready, but its written all in JAVA. I have the avd and sdk and eclipse all configured, but how would I change stuff like mouseListener into "touchListener". If you guys dont know what im talking about PM me xD?

siddysidsid said:
So I have an application ready, but its written all in JAVA. I have the avd and sdk and eclipse all configured, but how would I change stuff like mouseListener into "touchListener". If you guys dont know what im talking about PM me xD?
Click to expand...
Click to collapse
I dont have the answer you want, but you could always use the android java app. You can find it on google, it works with some java apps, cant guarantee it will support yours.

Unfortunately I do not think it is possible to turn a Java-based applications into Android without rewriting it. Even though the programming language is the same, the UI components of Android are different that standard Java.

It for sure is not possible to port it to Android without rewriting parts of it.
All UI stuff definitely needs to be adapted and/or rewritten. Also dependent on your application you have might have to optimize parts of it to work well with Android due to lower hardware specifications and so on.

Ahh well thats unfortunate. I was hoping for some kind of program that woudl do this for me.

Duplicate, thread closed.
http://forum.xda-developers.com/showthread.php?t=897686

What language and software uses android for programming?

Hey guys im considering porting/recoding an app from VB.net to work on android, but i havent got a clue what language is used in android, could someone tell me its name or some sort of website with this information?
Finally if someone is experienced in programming apps for android, i would like to chat about a few capabilities of the language.
Thanks in advance!

Android is Java-ish based.
i would recommend you checking out the program Eclipse.

The main applayer is java based with some xml thrown in. But there is a native development kit that you can compile c c++ and many other languages to run on an android phone. But since java is virtual machine based an app written in java will run on all phones*(some caveats like os version) while the app in ndk will work on only hardware that it was designed for
Also, is Google not working? A simple search for "Android programming language" would answer this question
From something awesome

killersnowman said:
The main applayer is java based with some xml thrown in. But there is a native development kit that you can compile c c++ and many other languages to run on an android phone. But since java is virtual machine based an app written in java will run on all phones*(some caveats like os version) while the app in ndk will work on only hardware that it was designed for
From something awesome
Click to expand...
Click to collapse
hmmm, yes there is google but not what im exactly asking, and that makes me ask this:
You talk about c & c++ and other languages compilations to run on android phone, is vb.net a part of that list?
Could you show me a website or something that says more about that dev kit? im basically trying to port my apps from vb 2010 express (windows forms based) to android and if that thing is not possible should i use java to code it all over again?
Thanks in advance!

http://developer.android.com/sdk/ndk/ this is for the ndk but it is not as simple as just compiling your code with the ndk. You will need to rewrite some of it to actuallytie into the android apis
You should really just use the java sdk. You will reach more people and be able to find more help and info
And I stand corrected, while there are projects trying to bring other languages to the ndk it is at this point just C and C++
From something awesome

killersnowman said:
http://developer.android.com/sdk/ndk/ this is for the ndk but it is not as simple as just compiling your code with the ndk. You will need to rewrite some of it to actuallytie into the android apis
You should really just use the java sdk. You will reach more people and be able to find more help and info
And I stand corrected, while there are projects trying to bring other languages to the ndk it is at this point just C and C++
From something awesome
Click to expand...
Click to collapse
oh well in that case i will need to learn java.... thanks mate, i think its easier to just rewrite the whole thing really i like proper optimizations and ports most of the times lack them.
Thanks for the information thats all i needed.
PS: rep added

if you know vb.net well you'll have no real problem with java.. it just adds brackets and semicolons essentially lol. I learned java in college and then was thrown into the .net framework using c# and i love the .net framework.. its so hard for me to go from using Visual Studios to Eclipse to make an android application because Visual Studios (which im assuming you use, is so powerful).. But yes android is java code behind and html (preferred) GUI. You can make your GUI using java but trust me its terrible!

jr10000 said:
But yes android is java code behind and html (preferred) GUI. You can make your GUI using java but trust me its terrible!
Click to expand...
Click to collapse
Html? You mean xml?
Also try Intellij instead of Eclipse. Eclipse is way too bloated and IntellJ has some amazing autocomplete features. Its better in my opinion
From something awesome

jr10000 said:
if you know vb.net well you'll have no real problem with java.. it just adds brackets and semicolons essentially lol. I learned java in college and then was thrown into the .net framework using c# and i love the .net framework.. its so hard for me to go from using Visual Studios to Eclipse to make an android application because Visual Studios (which im assuming you use, is so powerful).. But yes android is java code behind and html (preferred) GUI. You can make your GUI using java but trust me its terrible!
Click to expand...
Click to collapse
what?? i really need a proper GUI ugh... yes im using visual studio, and indeed is amazing, the app i have and i want to port to android is windows form based, the most essential thing i would need about it is the calendar control :\

You can use Javascript+HTML5 (it's complicated to express here but the whole things is pretty much native).
Python aswell, use SL4x or Kivy (Kivy is pretty good but it's still too new).
Sorry, being hate Java too much.

Funnnny said:
You can use Javascript+HTML5 (it's complicated to express here but the whole things is pretty much native).
Python aswell, use SL4x or Kivy (Kivy is pretty good but it's still too new).
Sorry, being hate Java too much.
Click to expand...
Click to collapse
ok np, so to doublecheck this: to have an application with graphical interface i will need javascript and html5?

TheWarKeeper said:
ok np, so to doublecheck this: to have an application with graphical interface i will need javascript and html5?
Click to expand...
Click to collapse
I dont know why people spread extremely non standard practices to people getting started...
No you dont need javascript or html5.
Android has a ui layout system based in xml. Its just there to arrange objects that you can access from the java code. So a little xml and java is all you need
From something awesome

TheWarKeeper said:
ok np, so to doublecheck this: to have an application with graphical interface i will need javascript and html5?
Click to expand...
Click to collapse
The right way to do GUI is with Java, with the official SDK from Google.
Some non-standard way to do this is with Javascript (just a GUI wrapper from Javascript to Java) and Python (again wrapper to Python).
You can choose which way you want, many people I know didn't like Java, and they choose to use a web application, and then they want to embed this to a native Android application, so they go with Titanium Mobile or some others framework like that. It's not as good as Java, but it's some other way to start with your application (Web app first and then Native app)

Funnnny said:
The right way to do GUI is with Java, with the official SDK from Google.
Some non-standard way to do this is with Javascript (just a GUI wrapper from Javascript to Java) and Python (again wrapper to Python).
You can choose which way you want, many people I know didn't like Java, and they choose to use a web application, and then they want to embed this to a native Android application, so they go with Titanium Mobile or some others framework like that. It's not as good as Java, but it's some other way to start with your application (Web app first and then Native app)
Click to expand...
Click to collapse
i feel like i should probably stick with java, i want it to be quick and fast and have alot of stuff to code, the program should run in background so it must not affect performance at all, will use timers with a basic code ticking every second while on background and thats it really

TheWarKeeper said:
i feel like i should probably stick with java, i want it to be quick and fast and have alot of stuff to code, the program should run in background so it must not affect performance at all, will use timers with a basic code ticking every second while on background and thats it really
Click to expand...
Click to collapse
Then use java bro, it's an awesome programming language, I don't know why some people don't like it, each programmer should learn to get used to each language.
Anyway, for likes.. colors
Cheers, D4.

D4rKn3sSyS said:
Then use java bro, it's an awesome programming language, I don't know why some people don't like it, each programmer should learn to get used to each language.
Anyway, for likes.. colors
Cheers, D4.
Click to expand...
Click to collapse
well ive been learning vb and i will admit that im still on intermediate level, even though i know all the basic stuff such as messing with its own functions, etc i still havent used any of the apis for it, the main problem with programming is that if u learn a language you would waste your time learning that one or else if u go learn to many languages you will end up not knowing none of them at all.
Ill see if i can mess with java, some people say syntax is a bit similar to c & c++
EDIT: btw, im not saying i dont find java good, a programming language that will basically run on any machine independently of the OS makes the language itself possibly the best and most versatile around.

I'm learning Android and I use Java and XML. I'm still a beginner though.
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I am just curious, software like Titanium Backup, or Angry Birds, which programming language do they use? Could this stuff be programmed with Eclipse in Java?

killersnowman said:
Html? You mean xml?
Also try Intellij instead of Eclipse. Eclipse is way too bloated and IntellJ has some amazing autocomplete features. Its better in my opinion
From something awesome
Click to expand...
Click to collapse
Hey, do you know how to use intellij idea fire Android development?
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