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The animation support added in Android 3.0 and enhanced since then is useful, allowing a flexible system of property animation to animate literally anything you want. Like a store going out of business: if it ain't nailed down, it's up for grabs. But that doesn't mean we're done yet; there are …
Last month, Romain and I once again braved Bay Area rush hour traffic and gave a couple of talks at the SF Android user group. Those talks were recorded and are now posted online: An Introduction to Ice Cream Sandwich (Android 4.0) This talk overviews some of the user and developer features of …
I spent last week at Devoxx , giving several talks with Romain Guy about Android (graphics, GUIs, performance, the latest developer features ... the usual). Now that I've recovered from a total system collapse over the weekend (apparently the body does insist on getting a little sleep now and …
I'm starting to prepare presentations for the ~8 hours of talks that Romain and I are giving at Devoxx in a couple of weeks. "Preparing" generally entails mostly worrying, followed by a mad rush of writing slides and code at night, on the long flight, after beers, between talks, and sometimes …
Romain and I wrote this article for the Android developer blog about graphics and animation features (what else?) in the latest Android release. Enjoy... http://android-developers.blogspot.com/2011/11/android-40-graphics-and-animations.html
One of the app developers here on Android asked me about the best way to animate adding and removing items from a UI. Specifically, he wanted to fade items in and out as they became visible/invisible. So I wrote up a sample activity that used ViewPropertyAnimator , showing how to set the …
A bug was filed on android.com recently that had me poring through the code and docs to understand three boolean flags in the old Animation class: fillBefore , fillAfter , and fillEnabled . On the surface, these properties don't seem that difficult to understand; they control how animations …
keywords android, animation, animation class, docs, exercise, flags, inaccuracies, nuances
Here's a simple app that I wrote recently to see how background processing affects frame rate. There's nothing too complicated going on in the app, but it seemed worth publishing to show how to do various things in Android, such as:
Using a single ValueAnimator (3.0+ API) to animate several …
keywords acceleration, android, animation, api, bitmap, canvas, capability, code, demo, eclipse, frame rate, gpu, graphics, hdmi, running, user group, video
Romain and I gave several talks at the excellent Devoxx conference in balmy Antwerp last November. The video of one of these talks, Android UI Development: Tips, Tricks and Techniques , has just been published for free on the Parleys.com site. All of the conference talks have been available for …
keywords android, antwerp, conferences, garbage, last november, subscribers, ui, video
I've given some talks about Android graphics recently, and the same questions keep coming up: What is Renderscript appropriate for? Is it a replacement for OpenGL rendering? How do I access Renderscript from NDK code? When do I choose between the different rendering options? Can I have a free …
keywords android, custom components, developers, drawing, graphical elements, graphics, guidance, myriad, new ways, options, photo album, synonym
