Pictures from "Learn about RenderScript" meetup at SF Android User Group

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Marakana Inc.

Pictures from "Learn about RenderScript" meetup at SF Android User Group

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Presented at Android Builders Summit on February 14th in Redwood Shores, CA by Aleksandar (Saša) Gargenta, from Marakana Inc. For the complete slides from this talk go to http://mrkn.co/munz7 "The most interesting part of Android stack are the Android System Services. The 60+ such services expose the low level functionality, such as Power Management, Wifi, Camera, Sensors, GPS, Display, Audio, Media, and so on, all the hardware all the way up to the application layer. While each one is different, the all have certain similarities, namely the way they rely on Binder (Android's IPC mechanism), use JNI to cross Java-C boundary, and use of shared libraries to abstract the Linux drivers. In this talk, we'll explore the common system services in Android and discuss their architecture. You will get to see the diagrams of the inner workings of some of the previously undocumented parts of the Android stack. By the end of the talk, you should have a better understanding of the underpinnings of the backbone of Android OS." https://events.linuxfoundation.org/events/android-builders-summit/gargentaa

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Learn hot techniques for developing more effective user interfaces in your Android applications from Android UI Toolkit engineers Romain Guy and Chet Haase. Romain and Chet will dive into some code examples, demo some handy tools, and show you how to optimize your UI for performance while making it look great. Didn't make it to Devoxx 2K10? Well, find out what you might have missed, as this is the same presentation Romain and Chet delivered at Devoxx. A few topics covered in this talk include: - Trash Talk: avoiding garbage creation when necessary and possible - Tools: Allocation Tracking, DDMS, Heap Analysis Tool (hat), etc. - A few tips on avoiding memory leaks - ViewStub, ListView and compound drawables - Graphics optimization techniques

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What's the state of the most popular JavaScript library today? What's in-store for upcoming releases? At an event hosted at Microsoft on November 9th, 2010, Yehuda Katz (a core member of the jQuery team) talked about updates planned for jQuery 1.4.3 and plans for jQuery 1.5, due next year. He also covers: - initiatives of the jQuery project - jQuery mobile - formalizing governance of the jQuery project ** See the video at: http://marakana.com/f/12312 ** Stay tuned for videos of these presentations from this event: - jQuery jump start (15 min. session to get you productive with the JavaScript frameworks) - jQuery with ASP.NET and Visual Studio Walk-through - How jQuery continues to drive innovation with emerging technologies In the meantime, check out more videos on open source development at: http://marakana.com/techtv

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Pictures from an event where James Gosling spoke on: - His departure from Oracle - Oracle's stewardship of Java - Android's use of Java, and what he would've done - Apple's "deprecation" of Java - IBM and Oracle relationship - Apache Software Foundation's recent worries - What's he's been up to lately - His other favorite programming languages and technologies - The future of Java ** Check out the full video from his talk at: www.marakana.com/f/205 **

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Learn how to apply the test-first approach to all of your Rails projects. In this six class series, experienced Rails engineer and consultant, Wolfram Arnold applies his real-world perspective to teaching you effective patterns for testing. In this fourth of six classes, Wolf covers: - Refactoring code & tests, custom matchers - API Testing - Remote data setup - Cucumber for API testing & documentation ** You can get the video and source code from this presentation at: http://marakana.com/f/204 ** All six classes will be available online, so stay tuned! And be sure to check out marakana.com/techtv for more videos on open source training. Presented by: Wolfram Arnold, in collaboration with Sarah Allen, BlazingCloud.net Produced by: Marakana

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At an event hosted at LinkedIn on November 2, 2010, Noah Gibbs delivers a presentation on how On-Site.com is using JRuby to leverage its old Java codebase. ** Check out the video from this presentation at: http://marakana.com/f/198 ** Noah talks about: - The advantages of using JRuby to leverage a legacy Java codebase - Integration with JSP pages - Java models and Active Record wrappers - Call Java-to-Ruby ...And if you're looking for more educational videos on Ruby and open-source, head on over to: http://marakana.com/techtv

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Robolectric is an open source Android unit testing framework that makes it possible to run unit tests against your Android application code outside of the emulator - in the IDE. Robolectric gives you the scaffolding to run your tests quickly so you can make fast iterations and refactor your code with confidence. ** Check out the video for this presentation at marakana.com: http://mrkn.co/f/192 ** This presentation was given at the San Francisco Android User Group on Oct. 26, 2010.

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Pictures from "Learn about RenderScript" meetup at SF Android User Group

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