Commentary

Animation in Honeycomb

One of the new features ushered in with the Honeycomb release is a new animation system, a set of APIs in a whole new package (android.animation) that makes animating objects and properties much easier than it was before.

“But wait!” you blurt out, nearly projecting a mouthful of coffee onto your keyboard while reading this article, “Isn’t there already an animation system in Android?”

Animation Prior to Honeycomb – Indeed, Android already has animation capabilities: there are several classes and lots of great functionality in the android.view.animation package. For example, you can move, scale, rotate, and fade Views and combine multiple animations together in an AnimationSet object to coordinate them. You can specify animations in a LayoutAnimationController to get automatically staggered animation start times as a container lays out its child views. And you can use one of the many Interpolator implementations like AccelerateInterpolator and Bounce to get natural, nonlinear timing behavior.

But there are a couple of major pieces of functionality lacking in the previous system.

For one thing, you can animate Views… and that’s it. To a great extent, that’s okay. The GUI objects in Android are, after all, Views. So as long as you want to move a Button, or a TextView, or a LinearLayout, or any other GUI object, the animations have you covered. But what if you have some custom drawing in your view that you’d like to animate, like the position of a Drawable, or the translucency of its background color? Then you’re on your own, because the previous animation system only understands how to manipulate View objects.

The previous animations also have a limited scope: you can move, rotate, scale, and fade a View… and that’s it. What about animating the background color of a View? Again, you’re on your own, because the previous animations had a hard-coded set of things they were able to do, and you could not make them do anything else.

It is for these reasons, among others, that we decided to offer a new animation system in Honeycomb, one built on the idea of “property animation.”
[youtube]http://www.youtube.com/watch?v=-9nxx066eHE&feature=player_embedded[/youtube]

Continue reading…

Related Posts

Why Ubuntu Business Desktop Remix will be a tough sell Ubuntu Business Desktop Remix is an edition of Ubuntu Desktop tweaked for use by institutional or business users. It was announced by Mark Shuttlewort...
Using OwnCloud and PageKite could get you in trouble with Verizon These days, everybody is talking about cloud computing, and many people use it in one form or the other. But popular cloud computing services are prov...
Android Vulnerability: Use Precaution on Public WiFi Yesterday, researchers from Germany’s University of Ulm reported that some Android applications transmit sensitive authentication data without properl...
Protect the API Keys to your Cloud Kingdom API keys to become first class citizens of security policies, just like SSL keys Much lip service is paid to protecting information in the Cloud, b...
The Next Net The moment the "net neutrality" debate began was the moment the net neutrality debate was lost. For once the fate of a network - its fairness, its ru...
Humanitarian Free and Open Source Software The Relevance of IT for Humanitarian Response The humanitarian response domain aims to help save lives and alleviate human suffering in responding ...

We Recommend These Vendors and Free Offers

Launch an SSD VPS in Europe, USA, Asia & Australia on Vultr's KVM-based Cloud platform starting at $5:00/month (15 GB SSD, 768 MB of RAM).

Deploy an SSD Cloud server in 55 seconds on DigitalOcean. Built for developers and starting at $5:00/month (20 GB SSD, 512 MB of RAM).

Want to become an expert ethical hacker and penetration tester? Request your free video training course of Online Penetration Testing and Ethical Hacking

Whether you're new to Linux or are a Linux guru, you can learn a lot more about the Linux kernel by requesting your free ebook of Linux Kernel In A Nutshell.


One Comment

  1. that’s an amazing animation!

Leave a Comment

Your email address will not be published. Required fields are marked *

*