Since few days i started developing android apps after 5 years of c/c++ coding , i know the need to learn java for android and i have no problem with it , but i prefer to continue using c/c++ , after long web search i found that the simplest way is by using c4droid ,since i don't currently have a android device , i think that my best solution is to run c4droid under blue stacks emulator and that way i will have no need to setup the NDK or "c++ builder" , now i have a little doubt , if that way is useful for serious game programming !! i know that c4droid support sdl and opengl and theoretically i can append any library in it , but can it reach such degree of confidence especially under blue stack emulator ?
Using the Android SDK is preferable over a simple app, however no one says that you cannot use it under Bluestacks. The results depend on you.
EDIT:
If you find it comfortable and you get the same results you'd get with the "official" way, why not do it your way?
Related
I've been developing an Android application with Android Studio and now I need to be able to open it with Xamarin.forms in Visual Studio (it's a task that my teacher gave me, and it's because a classmate has been creating the iOS version and now we will combine them into one project).
I have to say that I'm pretty much a noob and been looking a few tutorials that talk about Dependency Service and other stuff, but don't seem to quite cover what I'm looking for (or, at least, not clearly enough).
If you have a precise video that explains simply how to do this, I would be grateful if you share it with me.
I thank you for your time and wish you a great day :)
It is impossible at even now in current version of Visual Srudio .
Every file in Xamain is different with Native Android . The Java code can not be directly copyed to use in Xamarin , you should translate them to C#.
Having a look at this document: Porting Java to C# for Xamarin.Android .
There are two ways to port Java code to C#. The first way is to port the code manually. ..The second porting methodology is to try and automate the process by using a code converter...There is often a non-trivial amount of work involved with bootstrapping an automated code conversion tool, and this may prove to be a barrier to use. In many cases, it may be simpler and easier to port Java to C# by hand.
I knows that the AR.Drone is controllable for Android phone.
However I can't found any open java source code for me to develop!!
All I have found is the code with the type .h which I knows only for
C++ (iPhone user)!
Can any body give me some idea to develop AR.Drone with java code on eclipse?
thx
:)
there is javadrone ( http://code.google.com/p/javadrone/ )
Note: this lib has issues with the AR.Drone 2.0 - fixed ( for at least flying ) here: https://github.com/xperimental/moder.AR.drone/blob/master/library_projects/javadrone-api/src/com/codeminders/ardrone/ARDrone.java
The AR Drone application programing interface API can be found here:
https://projects.ardrone.org/
The API is in c++, if you intend to develop for iphone you will have to write an application from the ground up because the application that exists on the iphon currently is commercial. (Closed source).
As is the android one because they are developed by parrot.
I developed for the ar drone using the computer which was much easier, depending on what you are trying to do i would develop on the computer. If you need more help i would suggest asking here:
http://www.ardrone-flyers.com/
Good luck
We used yaDrone for an autonomous drone project - the library was very reliable.
Furthermore there is an eclipse tutorial for yaDrone.
If you need to build an IOS app you can use openFramework and ofxARDRone from Memo Akten to control and get the video. This framework is written in C++. You can use this framework in XCode and build for IOS, too.
I am new to android platform and have to do by B Tech project on this. I have to do product recognition and then process them. So, I need to do some serious coding on implementation of Image Processing on Android platform.
For this, I would require :-
Through understanding of Android programming
Setting up the environment for image processing on Android.
Finally, an emulator to debug my codes
So, I need suggestions for all of the above, like, what book I should go through for learning Android , what emulators I should use and can I use openCV libraries in my android application.
Regrading emulators, I have heard, that they are pretty slow and have lots of bugs. They keep on hanging. So, should I have an Android mobile then ?
Please comment, if, you are unclear about my question.
PS: I posted the same question here, but got no replies. So, posted it again.
Thanks !!
There are a lot of books out there, CommonsWare is a pretty good place to start for the basics, he has office hours (where you can ask questions) and comments on here quite a lot.
There is only one emulator as far as I know, most people use eclipse for their environment and it's fairly well integrated with the android tool set, but there are a few others, as well as command line tools if your prefer those everything you need for android development is here other than eclipse which is here
In regards to image processing I assume you mean image matching and yes there is an openCV for android there are also some commercial offerings if you don't want to try and sort through openCV
If you are going to be using a camera to do image matching then the emulator is not a great choice unless you want to be restricted to using it with a webcam (which is a pain to get working) you will still work a lot with the emulator though.
I know C# rather well and just love Visual Studio as IDE. :) Yet now I want to start developing for android...
I found out about MonoDroid and wanted to ask if it has any downsides to it that would make Java more preferable, or should I uninstall Eclipse and dive straight into MonoDroid?
If I understand right, MonoDroid deploys/compiles native android applications and does not need any additional .net-like framework or anything?
Are there any significant limitations to what I can do with MonoDroid? For example, having the app run in the background or using some external .net libraries for image editing, etc. ?
I've been worrying about the same thing - productivity in C# instead of playing with an unfamiliar language, vs developing how the OS developers intended it to be.
Its easy to list pros vs cons -
pros (of monodroid, for C# developers)
familiar dev environment, can develop using Visual Studio
C# instead of Java
Reusable code assets - you can use a lot of code in your iphone project or Windows phone 7 project using monotouch and the WP7 SDK.
cons -
debugging could be difficult, due to lack of api documentation from Google. Will have to depend solely on monodroid documentation.
there could be a lag when it comes to latest cutting edge features - safe to assume that the monodroid team will require some time to wrap around the latest android features every time there is a new OS release
availability of libraries - I am not sure how you can use the open source libraries that would have evolved around the android platform, that could cut down on development time
Much of the documentation available is in Java: so if you run into difficulties with phone behavior when using MonoDroid you won't really find that much help or debugging information so you may want to stick with Eclipse.
There's a lot more than just a set of wrappers running under davlick, truth to be told, there is much more of a horizontal relationship between MonoDroid and Android;
When did using the same language as the OS developers become a big issue? There's lots of C++ programmers wondering how to use BSD or SVR5 and many C programmers who want to know what the heck to do on Windows++...
If you will write in c# anyway you will be have to wrap it into a Java code, so what's the point ? Also you may head with a very difficult issues while trying to understand the APIs who written for Java programming...
Here are some points that you can mull over:
Android applications are predominately written with Java. The Android SDK itself is natively written in Java.
Working in Mono may not provide all the functionality available in the Java SDK.
If you are a C# Developer you wont be able to find, in Java, some of the (cool) features available in C# (like Property Delegates etc).
Code written in .NET can be re-used for other environments - this may save a lot time that would have been spent learning a new language/environment (like Objective C), and coding in it.
.NET extends the Android development stack with it's existing libraries and API's.
I think both are good for certain reason. It will be very hard to say which one is preferable for Android development - in the end that is up to you too decide.
Also note that any release build using monodroid adds an additional 4mb to the apk filesize and increases app startup time with a few seconds.
For simple apps this can mean a 500-800% increase in filesize - whic is pretty bad in my book.
I am an experienced professional programmer who wants to delve into Android programming. I also wish to investigate cross-platform programming using tools like PhoneGap or Titanium.
However, I am a bit in doubt of which learning strategy is best.
One approach is to get a good feeling of the Android environment and later on explore the possibilities of the cross-platform tools.
Another approach is to jump start using say Titanium (which to me looks like the better option of the two mentioned) and then after a while look into the underlying Android building blocks. The reason why this approach seems worth considering is that although I have earned my living on programming for 20 years, I have no experience whatsoever with Java. And the feeling of getting something done has always been encouraging to me.
What do you think? Does option 2 make sense, or would it be more sensible to get an understanding of the Android environment first?
Thanks in advance,
Martin
I think that all depends on what will you develop:
If you want to develop simple interfaces (parsing XML/Json/...) with some forms and nice transitional effects, then Titanium is yours.
However, the most advanced functionalities aim the iOS platform. For example, the augmented reality module or the push notification are not supported for Android.
On the other hand, if you want to develop advanced interfaces (Games for example), then you have no choice: Android SDK is the best way (you can use Flash for Android but it doesn't support very first Android OS versions).
In all cases, you have to understand how the Android platform works.
I had a similar decision to make, although I am not an experienced programmer like you with vast experience , I had no java knowledge and I needed to write an android app for a project in grad school ,and i'd tend to agree with you on which is the better option , although reading the dev guide and grasping the basics will be a must. And like Zakaria says , it also depends on what you plan to develop.
in my case I learnt basic java first , then used the SDK for my project. Its not that big a learning curve actually , I did not find too many problems with the API.