JUniversal vs Xamarin: What are the differences?
Developers describe JUniversal as "A new, Java-based approach to cross-platform mobile apps (used by Google Inbox and Google Spreadsheets)". The vision of JUniversal came from some guys at Nokia who possess considerable expertise both in Java and in building cross-platform apps. They built this tool to provide an elegant way to translate source code and make it useful across multiple platforms. JUniversal offers you the freedom to write your shared code in Java and then translate it to C# (available now) or to C++/Objective C++ (coming soon). You can also combine JUniversal with Google’s j2objc translator to translate Java to Objective-C for iOS. On the other hand, Xamarin is detailed as "Create iOS, Android and Mac apps in C#". Xamarin’s Mono-based products enable .NET developers to use their existing code, libraries and tools (including Visual Studio*), as well as skills in .NET and the C# programming language, to create mobile applications for the industry’s most widely-used mobile devices, including Android-based smartphones and tablets, iPhone, iPad and iPod Touch.
JUniversal and Xamarin belong to "Cross-Platform Mobile Development" category of the tech stack.
Some of the features offered by JUniversal are:
- OAuth (based on Scribe)
- Unit testing (JUnit)
On the other hand, Xamarin provides the following key features:
- Cross-platform development- Thinking about supporting iOS, Android, Mac and Windows? Xamarin allows you to write it all in C#.
- Reuse existing code- Use your favorite .NET libraries in Xamarin apps. Easily use third-party native libraries and frameworks.
- Discover as you type- Explore APIs as you type with code autocompletion.
JUniversal is an open source tool with 132 GitHub stars and 22 GitHub forks. Here's a link to JUniversal's open source repository on GitHub.
What is JUniversal?
What is Xamarin?
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I'm working in Huge company and I'm in charge to choose the cross-platform environment to develop Mobile application for all our services. I choose Xamarin but because the error i get everytime in Visual Studio, I want to leave it and recommand another solution. In fact that's why I'm here.
Weird, Install VS2017 with Xamarin on a new PC Create a new app GOT ERRORS.....!!!!!
Thank you for considering this
Comment from HackerNews (https://news.ycombinator.com/item?id=8998736)
This is how Google Inbox and Google Spreadsheets works. See the slides from my recently produced GWT Create Session (http://t.co/ZvoaHxCoZT). J2ObjC slide deck here (https://docs.google.com/presentation/d/1mW_Plm5jAygELf7qjVK7...) Videos of the conference will be online soon.
Prior to that, some 20% Googlers also produced the PlayN library (https://github.com/threerings/playn) This was taken over by Michael Bayne who added an iOS backend by Bytecode -> IKVM -> Mono conversion. I beleive j2objc and RoboVM backends exist now as well.
The major benefit of the j2objc approach is the avoidance of GC in favor of ARC, the conversion of message-sends into C-method calls when possible, and integration with existing iOS toolchain.
When we started, it seemed like an iffy idea, but after developing a product delivered to millions of users on a high volume site (gmail) that has 70% code sharing, and being able to simultaneously develop, test, and deploy across the platforms reasonably efficiently, a lot of skeptics have become converts to the concept.
Xamarin enables us to develop for 3 platforms (iOS, Android and Windows Phone) with one core codebase coded in C#. Xamarin has allowed us to release an app on all three platforms and develop them simultaneously - not bad for a team of 2!
Self taught : acquired knowledge or skill on one's own initiative. Platform: OSX 10.8 or later. Mac computer user.
Build & ship OS X & iOS apps from Visual Studio on Windows. Requires paid team license.