NativeScript vs. Oracle Java SE

I gotta be honest, after a PoC period, we choose to rewrite the whole application in a different cross-platform app. Our developers had to invest a lot of time and effort to debug a lot of plugin-related issues, which we needed to utilize the android mobile phone capabilities. QR reader, special visualizations, and fine-tuning were really hard and often resulted in writing native Android code instead of using the shared Angular code. In the end, we think that writing a standalone Android app and an Angular app would have been a better alternative, as the shared code base was so unreliable that it did not save us any time.

Incentivized

Oracle Java SE is well suited to long-running applications (e.g. servers). Java Swing (UI toolkit) is now rather outdated, lacking support for modern UI features. JavaFX, the potential replacement for Swing, has now been separated out of Java core. Ideally, there would be a path to migrate a large application incrementally from Swing to JavaFX, but due to different threading models and other aspects, it is difficult. At this point, it is probably better to use an embedded web browser (e.g. JxBrowser) to provide a modern UI in HTML/Javascript and keep just the business logic in Java.

Incentivized

• True native app. The app uses native components and that is quite noticeable in the overall performance of the app. NativeScript is also awesome in the way we can access the native APIs, so we are never really constrained by the framework. If we need, we can just dive into the native APIs without leaving our environment and language (JS).
• Cross-platform. Builds for Android and iOS. It deals with the platforms differences very well.
• Support for Vue.js. Even though it is just a community effort, the NativeScript-Vue plugin is the best alternative to build native Apps with Vue.js. That was a major factor to go with NativeScript.

Incentivized

• Plenty support built into the tool and IDE like Maven, Ant, Eclipse, IntelliJ.
• Strong object-orientation language and clear project structure.
• Wrapper underlines hardware and memory management so the developers can focus on business and implementation.
• It offers a huge library and framework support from third-parties and the community.

Incentivized

• The need to know the native Android and iOS APIs to access device hardware and other platform-specific functionality
• Not all user interface components are available for free
• NativeScript has no HTML and DOM, which requires some deep knowledge of different UI tools to be implemented instead

Incentivized

• Commercial Licensing in 2019. Oracle will charge commercial organizations using Java SE for upgrading to the latest bug fixes and updates. Organizations will now need to either limit their implementation of Java SE or may need to drop it altogether.
• Slow Performance. Due to the all of the abstraction of the JVM, Java SE programs take much more resources to compile and run compared to Python.
• Poor UI appearance on all of the major GUI libraries (Swing, SWT, etc.). Through Android Studio, it is easy to get a native look/feel for Java apps, but when it comes to desktops, the UI is far from acceptable (does not mimic the native OS's look/feel at all).

Incentivized

The hybrid is ok but native is better for performance and the right use case I want to go for is the performance without dealing with too many development tools.

Incentivized

The language is fluent and has good support from a number of open source and commercial IDEs. Language features are added every 6 months, although long-term service releases are only available every 3 years. It would be nice if some of the older APIs were depreciated with more pressure to move to the new replacement APIs (e.g. File vs. Path), but transitions to new features are generally well implemented.

Incentivized

The community support is excellent.
They have a slack community as well as a discourse forum
forum.nativescript.org
Both of these offer community driven support.
The forum is more for a threaded discussion. The slack community is more for a quick talk.

Incentivized

Java is such a mature product at this point that there is little support from the vendor that is needed. Various sources on the internet, and especially StackOverflow, provide a wealth of knowledge and advice. Areas that may benefit from support is when dealing with complex multithreading issues and security libraries.

Incentivized

Ionic Ionic is an excellent Angular-based framework for mobile, and it does give a lot of access to the native device api's. However, the technology is based on Cordova, which means the apps being built are just webviews, with html, css and JS all running on the UI thread, and potentially creating very slow experiences for users. NativeScript is a truly native solution, and so provides a faster user experience. ReactNative We evaluate ReactNative, and found it much the same as NativeScript. The main difference is that your JS is all written with React, while NativeScript lets you choose between normal JS, Angular, and Vue. For our team, Angular was the most appropriate choice.

Incentivized

Chose to go with Java instead of Python or C++ due to the expertise on the ground with the technology, for its ease of integration with our heterogeneous setup of production servers, and for the third party library support which we've found was able to address some challenging aspects of our business problem.

Incentivized

• The poor quality of NativeScript documentation has the potential to weigh heavily on development timelines, budgets, and QA resources in a NEGATIVE manner.
• The poor interoperability of NativeScript plugins can significantly increase development time.
• The need to seek out professional instruction to learn how to use NativeScript effectively may become a burden on your budget.
• The number of breaking changes between versions of NativeScript, may cause your development efforts to lag further behind the most recent releases of NativeScript and your other chosen environments than you are accustomed to.
• NativeScript still does not support the latest major version of Angular. Any significant changes to the other environment components of your systems may hold you back even further while NativeScript plays catch-up.

• The different versions make it harder to work with other companies where some use newer versions while some use older versions, costing time to make them compatible.
• Licenses are getting to be costly, forcing us to consider OpenJDK as an alternative.
• New features take time to learn. When someone starts using them, everyone has to take time to learn.

Incentivized