is it possible to publish a mobile (specifically IOS) app using Flex Builder 3, or is this only available on Flash Builder 4.5 and later?
Mobile support is only available in Flash Builder 4.5 and later. You can use the free command line tools to create mobile applications; but I strongly recommend that you upgrade your tooling because it will save you a lot of headaches.
Although it is possible, I am not sure I would recommend trying to publish a Flex 3 based app to iOS or any mobile platform. Rewriting the app to use Spark components is going to give a much more optimized performance.
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Can you explain me how to use Dart flutter with just an ordinary desktop web site?
Let's say I have a website, which has a good responsive design, but I want to make it more handy for mobile users. So, I decide to use Dart, I create a server and then? Do I need to redirect users to f.e. m.mysite.com which is built on flutter widgets, but PC users will redirect to mysite.com? Also, there is an information that since June 2019 you can write desktop web application. What does it mean, we couldn't do that before?
As #Randal Schwartz noted, Flutter Web is in very early stages of development (alpha, I believe), meaning you should not roll with it in production. However, it is the only way to use Flutter to build websites. You can find it at:
https://flutter.dev/web
https://flutter.dev/docs/get-started/web
https://flutter.dev/docs/development/platform-integration/web
If you want to use Dart (not Flutter) in a website, you can try these. They are more mature than Flutter Web, but you'll lose "Flutter" features:
VueDart (https://refi64.com/vuedart/)
AngularDart (https://angulardart.dev/)
React-Dart (https://github.com/cleandart/react-dart) (This one is tricky!)
These are all ports of popular JS frameworks (Vue, Angular, and React) to Dart, so you can use them for responsive website design. Note that you might have to do some background research in the original JS framework, to fill in documentation.
Note: All of the above work on both Mac and Windows. Flutter Web/Dart frameworks are not platform dependent.
Flutter has primarily targeted the mobile platform. What is changing is that Flutter is also being developed for desktop and web applications. Not clear what you mean by "desktop web". Both desktop and web flutter are "not ready for prime time", but progress is being made rapidly.
I am little confused which one is best for build hybrid mobile application.
IONIC Framework, Onsen Framework, IBM Worklight, Sencha or other. I am familiar with javascript, css, and angular.js
There is no "better" framework. They all have their own strength and weakness.
The only things that matter for me when I want to start a new project with a new technology are:
Is it mature enough to be used in production?
Is it still in developpment?
Is it well documented?
Is the community active?
Is it hard to use?
I'm using Onsen UI And Ionic and for what I can tell, both are doing the job, are easy to learn once you know how to use Angular.
Ionic:
Big community and support
Lots of tool to make your developpment easier
Plugins and themes available
Growing project
Onsen UI
Can be used with multiple framework
Good Documentation
Easy Router implementation
Small community
I would like to use Xcode as my IDE because I can place buttons, labels etc. while using the Xvim so I can program more efficiently. I used the qt-unified-mac-x64-2.0.2-1-online installer, however I cannot see any templates in Xcode V7.1.
How would it be possible to use Xcode to develop QT applications?
This question Developing QT applications in Xcode? does not help because the link which was given is dead.
I do not understand. I have to download xcode and bunches of other stuff to make it work. I don't understand what I'm getting. Is it that I can use Ruby instead of Objective-C and it compiles down to a native app? Thanks.
Rhomobile, selected Best Startup at Interop 2009, lets developers use HTML and Ruby to create native iPhone, BlackBerry, Windows Mobile, Symbian, and Android applications.
The development in it is called rhodes.
Rhodes is a free and open source MVC-based framework written in Ruby under the MIT license for building native cross-platform mobile development applications. Rhodes enables developers to harness their traditional web skills such as HTML, HTML5, CSS, and JavaScript, instead of in Objective-C or other complex native device OS language, to create a native app, and porting the app in cross operating systems such as Android, Apple’s iPhone and iPad, BlackBerry, Windows Mobile, Symbian and HP/Palm's Linux-based WebOS.
Download rhoStudio. Using the rhoStudio you can create your iOS, android,BB,WP application easily.
What you have to do is to code in simple html, javascript and if you want to use MVC architecture you have to use Ruby for that. As it is build on Ruby framework.
Good thing is it also supports HTML 5.
Once you build the project you can transform into any of your favorite device application.
with just only couple of commands.
I just coded in html in rhoStudio and now I can run the same application in my Xcode also. its fun.
At the same time of development you can run your project for other devices too.
The ruby that you write is compiled to Ruby bytecode and the compiled bytecode is executed as a resource by Rhodes and compiled to native code. A rubyVM interpreter is integrated into the application.
A client wants a blackberry application for listening live radio for his radio station. We focused on iPhone development. I know Java language have done several projects. However haven't tried yet J2ME. Which do you recommend J2ME or HTML Javascript framework like PhoneGap or any other cross platform framework? What are the advantages and disadvantages of them? Thanks.
If you are comfortable with Java Swing or other Java UI programming then going with native is probably a great idea.
If you are more comfortable with HTML, JavaScript and CSS then use PhoneGap. If you are planning on deploying your application to more than one platform then definitely use PhoneGap. PhoneGap also allows you to write native BlackBerry Java code and integrate that with the HTML / JS code in case the specific APIs you need are not exposed.
With the imminent release of BlackBerry OS 6 things should get a lot better on that platform for both PhoneGap (since the browser is now WebKit based) and for native Java programming.
There are many other comparisons between PhoneGap and X on stackoverflow, though most other cross platform frameworks don't support BlackBerry.
J2ME: Blackberry supports this (and is fact still the BB's core), however it's a rapidly aging platform. You can't do many interesting things in BB without the proprietary APIs.
Phonegap: Haven't used it myself but I've heard so-so things about it. High footprint, lowest-common-denominator etc.