May 2012 - Posts
Here is some info on the recording of the webinar that I did last week for AppDev regarding the Xamarin Designer for Android.
Info: Android user interfaces can be created declaratively by using XML
files, or programmatically in code. The Xamarin Android Designer allows
developers to create and modify declarative layouts visually, without
having to deal with the tedium of hand-editing XML files. The designer
also provides real-time feedback, which lets the developer validate
changes without having to redeploy the application in order to test a
design. This can speed up UI development in Android tremendously. In
this webinar, we'll take a look at UI Design in Mono for Android, the
basics of the Xamarin Android Designer, and build a simple application
with the designer.
Here is the link:
I think it will only play in Internet Explorer. Enjoy!
years ago, in fact pre-Java, I remember a hallway discussion about the
desire to write a single application that could easily run across
various platforms. At the time, we were only worried about writing
applications on Windows 3.1 and Mac OS 7.x. There were many discussions
about windows, user interface concepts, and specifically a rather long
discussion as to whether Mac users would accept a Mac application that
didn't have balloon help. Thankfully, the marketplace answered this
question for us with the Windows API winning the battle.
similar set of questions is currently going on in the mobile world.
Unfortunately, at this point in time, there is currently no winning API
and none currently in sight. What's a developer to do? Here are some
questions that developers have (and there are many more):
- How can mobile developers target Android and the iPhone with the same code?
- How can .NET developers share their code across Android, iPhone and other platforms?
can developers give applications the look and feel of the specific
platform and still allow as much code as possible to be shared?
devices share many common features, such as cameras, accelerometers,
and address books. How can we take advantage of them in a platform
independent way and still give the users the look of every other
application running on their platform?
this article, we'll look at some solutions to these cross-platform and
code-sharing questions between Mono for Android, MonoTouch and the .NET
Framework available to developers.
I'll be doing a Webinar on May 23 on the Xamarin Mono for Android Designer that is new with Mono for Android 4.2. This is a free webinar presented by AppDev, please attend if you can. Here is some info on the webinar:
Android user interfaces can be
created declaratively by using XML files, or programmatically in code.
The Xamarin Android Designer allows developers to create and modify
declarative layouts visually, without having to deal with the tedium of
hand-editing XML files. The designer also provides real-time feedback,
which lets the developer validate changes without having to redeploy the
application in order to test a design. This can speed up UI development
in Android tremendously. In this webinar, we'll take a look at UI
Design in Mono for Android, the basics of the Xamarin Android Designer,
and build a simple application with the designer.
This course is about how to use Mono for Android with Tablets and the new Android 4.0 Ice Cream Sandwich release
. The course introduces Android Tablets and Fragments, new controls that are available through Android 4.0, new application programming interfaces in Android 4.0, and new features available in the Google Android SDK Release 17 that can improve their development experience. This course also contains a module on the Android Design Experience, what developers can use to improve the user experiences, design suggestions from Google’s Android team, and some thoughts on how to improve the design experience via software code.
I'll be doing an eLearning event on HTML5 for Mobile with jQuery Mobile. There will also be a few items sprinkled in on ASP.NET Razor.
Mobile development is a hot item. Customers are buying iPhones, iPads,
Android devices, and many other mobile computing devices at an ever
increasing record pace. Devices based on iOS and Android are nearly 80
percent of the marketplace. RIM continues to be dominant in the business
area across the world. Nokia's growth with Windows Phone will grow on a
worldwide basis. At the same time, clearly web development is a
tremendous driver of applications, both on the public Internet and on
private networks. How can developers target these various mobile
platforms with web technologies? Developers can write web applications
that take advantage of each mobile platform, but that is a lot of work.
Into this space, the jQuery Mobile framework was developed. This
eLearning series will provide an overview of mobile web development with
jQuery Mobile, a detailed look at what the jQuery Mobile framework
provides for us, how we can customize jQuery Mobile, and how we can use
jQuery Mobile inside of ASP.NET.
Multimedia is expected in today's mobile applications, and the fun isn't
only for smartphone and tablet users. Mono for Android, based on the
Mono project's open source implementation of the Microsoft .NET
Framework, can help you take advantage of Android Camera APIs in Visual
Studio. In this article, we'll look at taking pictures, loading pictures, video playback and recording video.
I don't know about you, but I'm amazed at what you can do with the
multimedia in today's mobile devices. I grew up playing "Pong" and
remember when games had to fit into big boxes with green screens and
ASCII art. About 10 years ago, I had to create an interpreter for the
graphics processor in the IBM AS/400 systems (iSeries now) to generate
graphics in a screen-scraping application. How did we survive those
Now, mobile devices allow you to take pictures, record audio and
video, and send it all to friends and relatives in minutes. You're
seeing this happen all over the world, even in uprisings, as people
compete to get their stories out.
Many people are confused by what multimedia actually is (including
me), but for our purposes, I'll look at how .NET developers can use the
Xamarin Mono for Android plug-in with Visual Studio 2010 to create
Android applications that use pictures and video. If you're new to Mono
for Android, check out my tutorial, "Introduction to MonoDroid".
While Mono for Android has definitely grown and matured since then,
many of the basics are still applicable. However, the Mono garbage
collector (GC) is not quite as advanced as the GC in the Microsoft .NET
Framework. Sometimes, you'll need to help the GC along by calling
GC.Collect at an appropriate part of your application.
There are a large number of Android devices in the marketplace. What
works on one may not work properly on another. The code in this article
was tested and validated against Mono for Android 4.0.x. Testing was
done on two devices: an HTC EVO 4G running Android 2.3 (code-named
"Gingerbread"), and a Motorola Xoom tablet running Android 4.0.3
(code-named "Ice Cream Sandwich").
I've found that if an app will work on my HTC EVO 4G and my Motorola Xoom, it typically works across many devices.
This article resumes where we left off in "Working with Images and Animation on the iPhone and iPad with .NET and C#: Part 1,"
which looked at multimedia app development on the iPhone and iPad,
including how to display simple images, take pictures with the device's
camera, and perform some simple animation with the images. In this
article, part 2, we'll look at how to perform more complicated animation
using the NSTimer and UIView classes, how to display and record video, and how to edit the video.