I have .jar file containing java code (Business Layer) of an android application.Is there anyway i can use the same .jar file for developing corresponding iPad application in xcode?
Since ipad applications are built using objective c,you must convert your java code in jar file to objective c.Use the tools like j2objc
http://code.google.com/p/j2objc/
Also refer:
https://stackoverflow.com/questions/4185334/is-there-a-good-java-to-objective-c-converter
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I'm currently working on a Zynq-7000 Software project using Xilinx SDK toolchain.
I've noticed that nearly all of Xilinx's Demo projects automatically generate a "platform.h" file. However, when I start from an empty project in the SDK IDE it never generates "platform.h". This normally this would not be a problem, however, I want to cut and paste code from the "demo" project into my empty application project, and I can't do this because the "demo" projects rely on the "platform.h" header file. (I could create the demo project and delete every file from it, except platform.h, except this solution doesn't work because I need to modify the hardware away from the defaults with a custom FPGA image.)
What's the secret to get Xilinx SDK to auto-generate the "platform.h" file for an empty SDK Application?
For instance, is there an obscure checkbox that I need to click somewhere in the Board Support Package Project that says generate "platform.h"? or something like that? no idea...
It turns out that "platform.h" and "platform.c" are just normal c-code that are part of the Xilinx demo project. This code is not generated automatically generated as part of the Board Support Package. Thus, you can simply cut and paste these files into your new project without causing any problems. This is why an empty Application project doesn't contain these files.
The reason why they called it "platform.h" was just to hide the API differences between different Xilinx CPU types. Thus, the same demo code compiles on multiple platforms.
If you are like me an only using the Zynq-7000 platform, you can simply delete everything else in the platform files that's not related to Zynq-7000.
I have not used Xamarin before, I'm coming from a native development background.
I have a question about the feasibility of binding a native iOS library written in Swift, in order to use it in an Xamarin project. Is this possible and more importantly is it possible to do without any access to a Mac OS computer?
As a side question, is Objective-C library binding doable without Mac OS?
To do the entire process: No.
You can create a Xamarin Binding project from within Visual Studio, but there are a lot of dependencies you will need that you can only get by having access to a macOS.
1 - If you don't have the compiled and fat library you will need a macOS to build using Xcode and use Lipo to create the fat library.
2 - Supposing you already have it, you will need to create the ApiDefinition.cs, to do so you might use Objective Sharpie (macOS only). You can get around it by creating it manually, but unless you are binding a very tiny library - just for the sake of proving the point - you will not want to do so.
Those two apply to any Xamarin.iOS Binding, as it is the same process for Objective-C Bindings
3 - For Swift Bindings you will also need to include all Swift dependencies inside SwiftSupport folder inside your IPA file. This step is required before publishing the App, not creating the binding - I have only tried to do so using a shell script. But for this case you need a macOS to publish the app to App Store as well.
So just to prove the point: Maybe.
I wrote a game for Android using Android NDK. Core of game logic written in pure C++. So, I want to port it to iOS. I know how to port Java (JNI) wrapping to Objective-C.
My question is how to organize this project on FS? I want to keep a single code base, and I use git (link).
First, note that there should be no need at all do wrap your C++ code: the objective-C extension of the C language is also compatible with C++. So, you can compile your code as "Objective-C++" and directly use C++ classes with Objective-C code.
Second, you can put your code anywhere you wish on the disk. Both eclipse for Android and xcode for iOS will let you include source code into your project from any relative directory.
If you ever need platform-specific native code you can use #ifdef __ANDROID__ for android-specific code inside your C++.
Hi I need to unzip a file in Monotouch for an iOS (and Andriod later) App and sharpziplib looks like a good choice (is it?). But how do I go about adding it in MonoDevelop (I have the latest version)?
I have downloaded ICSharpCode.SharpZipLib.dll, but how/where is it added to my project (solution)? Can anyone give me step-by-step instructions?
Also which .net version of the DLL should I be using? There are three: net-11, net-20, netcf-20 (i think it's the last one but would be good to have that confirmed).
You must create a MonoTouch class library project for ICSharpCode.SharpZipLib and add the corresponding source files to that project.
Then you can either reference the resulting assembly or the project itself in your solution.
I have also asked this question on the BlackBerry support forums, under the thread "NoClassDefFoundError while preverify the jar files in BlackBerry"
I am adding a library files(jar files) in my BlackBerry Project and and try to run it. But it is giving me the below error : Error!: Missing stack map at label 77. So i try to find out the issue and find this link: Preverify Link
So i tried to fix this issue using preverifier. As i am using BlackBerry eclipse plugin, i have tried in this way:
Copy the jar file in the bin folder of my eclipse 6.0 plugins (eclipse-SDK-3.5.2-win32\eclipse\plugins\net.rim.ejde.componentpack6.0.0_6.0.0.29\components\bin)
Execute the following command in the command line:
preverify -classpath "<path to 6.0.0.29 SDK>\net_rim_api.jar" "ArcotOTP-Lib-Java-Test-2.0.0.jar"
But after running this line, i am getting the below error:
Error preverifying class Mypackage.API$1
java/lang/NoClassDefFoundError: Mypackage/Test
BlackBerry devices are running on the Java-ME platform, so you can't use modern java features. Typical Java jar files these days use newer features that are not backward compatible with the Java-ME platform. Some projects do go out of the way to be backward compatible, like Bouncy Castle. But that is rare.
This question, duplicated on the BlackBerry forums, was also answered on the BlackBerry forums, which I will capture here:
simon_hain:
and is it a j2me library?
Arindam Mukherjee:
No it is java library..all classes are basically java classes. The same library i am using for android also and it is working fine fro me..
simon_hain:
BlackBerry uses J2ME as a base, Android uses J2SE.
You cannot use an Android library on BlackBerry unless you re-compile it (and resolve all the errors due to missing reflection, lists etc)