I like to create a desktop widget framework using asp.net. its like yahoo widget or google widget any one able to create a simple widget application and plug in to this framework.any one give me idea for this how to develop this framework?
For a kick off, you should take at the W3C Widgets specification - that provides the framework for how widgets are packaged and distributed (and means that you get to play with existing widgets from Opera, Nokia, RIM etc rather than have to invent them all from scratch).
Related
I'm returning to Qt programming after an absence of a couple of years, and I'm starting with Qt 5.1. In the past, I've used the designer, and a good deal of hand-crafted code to put Qt projects together. Now, we'd like to make heavy use of the Creator.
But I'm not seeing how to accomplish some seemingly basic tasks. For example, I'd like to design a custom widget, then pull it into my main application, but although the Creator allows me to make multiple files within a project, they seem to have no knowledge of one another as far as the Creator itself is concerned. Once my widget is built, there's no way to pull it into the main application, and also no way to test it independently, at least that I'm able to find.
It seems as though documentation for Qt has taken a major blow somewhere along the line. It is cursory and thin, compared to the extremely detailed docs that used to be available in the past.
If someone can point me to a decent collection of documentation and tutorials, I would be grateful.
Unit Testing
Use the Qt Test module: https://doc.qt.io/qt-5/qttest-index.html
Using Custom Widgets
I'm not 100% sure what you meant by "pull [the widget] into the main application".
If you want to combine your custom widgets in Qt Designer, add a placeholder (blank) QWidget in the parent and Promote it to your custom widget:
https://doc.qt.io/qt-5/designer-using-custom-widgets.html#promoting-widgets
If you want to combine your custom widgets in C++, instantiate your custom child widget and add it into the parent widget's layout using QLayout::addWidget():
https://doc.qt.io/qt-5/qlayout.html#addWidget
If you want to make your application display a custom widget, simply #include the widget's header, instantiate the widget, and call QWidget::show():
https://doc.qt.io/qt-5/qwidget.html#show
If you want to develop your custom widget in a separate standalone project, include it in your main project as a Subproject:
https://doc.qt.io/qtcreator/creator-project-creating.html#adding-subprojects-to-projects
How do I make a subproject with Qt?
Other Notes
Qt Designer has been integrated into Qt Creator for many years. Qt Designer and its documentation have changed very little between Qt 4.8 and Qt 5.
The extremely detailed docs for Qt 5 are at https://doc.qt.io/qt-5/. There are links to useful doc collections in the nav bar on the right.
I recommend exploring QML/Qt Quick. It's much easier to create QML-based GUIs compared to widget-based GUIs. It's still a young technology though, so it might not suit your needs yet: http://doc.qt.io/qt-5/qmlapplications.html
The question is: Is it a good practice to use SpriteVisualElement instead of UIComponent to create custom components? The reason being I can't add Sprite or FlexSprite as direct children of View and I see that UIComponent is quite heavy then SpriteVisualComponent from code point of view.
I searched extensively to confirm if there are certain examples elsewhere which shows use of this control as the base to create custom controls but could only find this. So actually I was little less confident about weather this is Ok or not.
Below is the supplement information:
Nature of application: Educational game application for children
Target platform: Mobile device (currently only Android platform)
Application environment: Flex SDK4.6 with AIR 3.8. Blank Spark application with spark.components.ViewNavigator. PureMVC framework used. Multiple Views to contain custom components which mostly use graphics package to draw themselves and to draw child controls within them (This is where I actually extend SpriteVisualElement for custom drawing as well as containing and displaying other custom controls).
Please suggest me if what I am doing is a good practice for a mobile app or not.
Thanks in advance and regards,
Sachin.
I use it often as SpriteVisualElement is lighter. I always try to use lighter things if it's fit my needs so I think it's a good practice especially for mobile development.
I'm trying to build a MonoGame view inside MvvmCross on Android,iOS and WP8. On Windows side it's relatively easy to use dependency properties as a binding target, but how can I achieve a cross platform data binding solution that I can use on all platform?
This was covered in a previous MvvmCross version - see Insert a Monogame view inside MvvmCross monodroid Activity
The technical details have changes a bit since that post, but the core of the advice remains the same - use inheritance to add data-binding.
For example, if you want to adapt a FooActivity or FooViewController base class so that it can be used for MvvmCross data-binding, then you need to:
inherit from FooActivity to provide EventSourceFooActivity - to do this you need to add event notifications like those shown in MvxEventSourceFragmentActivity.cs
inherit from EventSourceFooActivity to provide BindingFooActivity - to do this you need to add all the members like DataContext from MvxFragmentActivity.cs
The process for Touch/iOS is very similar, but with iOS specific events and members. Take a look at any of the Mvx*ViewController classes to see what is involved.
This technique is also discussed in: Integrating Google Mobile Analytics with MVVMCross
I am working on a small hobby app - which would show some charts, and would be accessible by people using their mobile devices. I come from a Microsoft development background - have used Telerik, Infragistics controls in the past, and loved them.
From my research so far - it seems like I will have to build an app that outputs HTML5 for maximum compatibility.
I like the ComponentOne controls so far - http://www.componentone.com/SuperProducts/StudioiPhone/
I am also looking at the KendoUI (http://www.kendoui.com/) - I like it, but seems like it is all javascript, and I have very limited experience there.
Are there any components/frameworks that you guys would recommend ? Paid components are fine.
I just want a few charts that are accessible everywhere. I know I could use MVC - and design a different a different UI layer for each platform, but I dont have that much time.
Maybe you want to consider ASP.NET MVC and expose it as a web site, since ASP.NET MVC 4 will have explicit mobile support.
Also, if you want an actual application, you could consider various products like:
http://www.phonegap.com/
http://www.appcelerator.com/
it depends what type of feature you want to make available. Must of the HTML-based frameworks require JavaScript.
HTH.
Have you looked at Sencha? While I have not played with the Sencha charts, I have tried other widgets.
www.sencha.com
You can put together ASP.net MVC at the backend with Sencha consisting of HTML5 + Javascript
Stick with ComponentOne if you want to keep working in WebForms and aren't OK with JavaScript. They have HTML5 charts that work everywhere too.
If you are looking to move to MVC/JavaScript then ComponentOne has Wijmo too. Wijmo is 30 jQuery UI widgets including the same HTML5 charts they extend in WebForms.
It's been a couple of years since I've done any Java work, my last efforts were using Swing. I'm poking around with a cross-platform client app that will interact with a Rails web service. JavaFX is one of the options I'm considering, but I'm concerned at the out-of-the-box aesthetic. Does JavaFX have a native look and feel option for the JavaFX controls (not Swing)?
I'm getting the impression that if I want to build a line of business application in Java, I should probably stick with Swing which is a shame since I like some of the features of JavaFX like binding, a terse syntax, and easy support for REST client programming.
I haven't see that. At best, you can use the extensive support of CSS styling we got with 1.3 to mimic native look and feel, but that's a big job! Not even sure how to deal with various themes we got on modern systems...
I suppose the point of RIAs is to bring their own look or to be flexible enough to allow to do your own shinny look, not to look like a random bland application on your platform... :-)
(Now, if I like skinnable applications, I also appreciate GUI frameworks using native controls or looking as such, like Qt (vs. GTK+ for example), precisely to provide good old "bland" applications not breaking user experience.)
JavaFX 2.0 has only one Look by default that is called "Caspian".
With Java 8 a second one was introduced, called "Modena".
Both are cross-platform Look&Feels.
See announcement of Modena, with screenshots.
At the moment some developers create native Styles for JavaFX as OpenSource projects. You can find an overview here:
http://www.guigarage.com/2013/01/this-is-for-the-native-ones/
If you are interested in the Mac OS L&F (AquaFX) for JavaFX, here are some posts with previews:
http://www.guigarage.com/category/aquafx/
Native look and feel is not supported by Oracle in the default JavaFX 2.x distribution.
A proof of concept on button styles by one of the JavaFX developers demonstrates that JavaFX is flexible enough to generate widgets that look like native widgets.
For OS X, you can try the third party AquaFX style for JavaFX, which makes JavaFX applications look like native OS X applications. AquaFX appears quite complete and comprehensive to me.
There have been other 3rd party projects which partially create native look and feels for other platforms, but their coverage is currently nowhere near comprehensive.
Some third party projects (all of which seem currently experimental and incomplete) are:
JMetro in jfx-styles
javafx-native-themes (JavaFX look and feels for: default swing, iOS, windows 7...)
you could definitely embed some css in your application to make the javafx components look more like the standard swing look. With scene builder its actually really easy to get all your tags setup correctly.
Check this out
http://docs.oracle.com/javafx/2/css_tutorial/jfxpub-css_tutorial.htm
Interesting thing is in javaFx is, you can give the rich look and feel to native application also.You can apply css to the javaFx components. Not only that you can embed the HTML Css and pages in JAVAFX application.Which i can feel great revolution in terms of UI building for Standalone applications.