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  • Google I/O 2011: Accelerated Android Rendering

    Google I/O 2011: Accelerated Android Rendering Romain Guy, Chet Haase Android 3.0 introduced a new hardware accelerated 2D rendering pipeline. In this talk, you will be introduced to the overall graphics architecture of the Android platform and get acquainted with the various rendering APIs at your disposal. You will learn how to choose the one that best fits your application. This talk will also deliver tips and tricks on how to use the new hardware accelerated pipeline to its full potential. From: GoogleDevelopers Views: 11086 62 ratings Time: 48:58 More in Science & Technology

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  • Solving the context menu problem with drag and drop in trees

    - by Frank Nimphius
    Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} The following drag-and-drop problem has been reported on OTN: An ADF Faces tree component is configured with a af:collectionDropTarget tag to handle drop events. The same tree component also has a context menu defined that is shown when users select the tree with the right mouse button. The problem now was - and I could reproduce this - that the context menu stopped working after the first time the tree handled a drop event. The drag and drop use case is to associate employees from a table to a department in the tree using drag and drop. The drop handler code in the managed bean looked up the tree node that received the drop event to determine the department ID to assign to the employee. For this code similar to the one shown below was used List dropRowKey = (List) dropEvent.getDropSite(); //if no dropsite then drop area was not a data area if(dropRowKey == null){    return DnDAction.NONE; }                tree.setRowKey(dropRowKey); JUCtrlHierNodeBinding dropNode = (JUCtrlHierNodeBinding) tree.getRowData(); Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} So what happens in this code? The drop event contains the dropSite reference, which is the row key of the tree node that received the drop event. The code then sets the key to the tree in a call to getRowDate() returns the node information for the drop target (the department). This however causes the tree state to go out of synch with its model (ADF tree binding), which is known to cause issues. In this use case the issue caused by this is that the context menu no longer shows up. To fix the problem, the code needs to be changes to read the current row key from the key, then perform the drop operation and at the end set the origin (or model) row key back //memorize current row key Object currentRowKey = tree.getRowKey();        List dropRowKey = (List) dropEvent.getDropSite(); //if no dropsite then drop area was not a data area if(dropRowKey == null){   return DnDAction.NONE;   }              tree.setRowKey(dropRowKey); JUCtrlHierNodeBinding dropNode = (JUCtrlHierNodeBinding) tree.getRowData(); ... do your stuff here .... //set current row key back tree.setRowKey(currentRowKey); AdfFacesContext.getCurrentInstance().addPartialTarget(tree); Node the code line that sets the row key back to its original value.

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  • Google I/O 2012 - Google Compute Engine -- Technical Details

    Google I/O 2012 - Google Compute Engine -- Technical Details Joe Beda, Evan Anderson This session will provide an in depth overview of Google Compute Engine. Google Compute provides Virtual Machines optimized for large scale data processing and analytics. We will dive into the core concepts, API, unique features and architectural best practices in the context of concrete examples. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 2497 88 ratings Time: 01:01:39 More in Science & Technology

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  • Making Sense of Multitouch

    [This post is by Adam Powell, one of our more touchy-feely Android engineers. — Tim Bray] The word “multitouch” gets thrown around quite a bit and it’s not...

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  • More Than a Map - Get Flight

    More Than a Map - Get Flight In Sydney, Australia, We met up with GetFlight founder Ian Cummings at the Fishburners coworking space. GetFlight is airfare search site based that uses the Google Maps API to help users discover cheap airfare to great destinations. Read more on morethanamap.com #morethanamap From: GoogleDevelopers Views: 864 20 ratings Time: 02:00 More in Science & Technology

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  • Google+ Platform Office Hours for May 16th, 2012: Hangouts API v1.1

    Google+ Platform Office Hours for May 16th, 2012: Hangouts API v1.1 This week we discussed the latest release of the Hangouts API, v1.1. JD Salazar and Richard Dunn from the Hangouts API engineering team joined us to help your answer questions. Discussion this session on Google+: goo.gl You can learn more about our office hours here: goo.gl 0:29 - Introductions 2:50 - Richard gives us an overview of what's new in Hangouts API v1.1 8:57 - What are the default scales for the static overlays? 9:25 - Will the static overlay scale ratio change during the hangout? 10:13 - What is the resolution of the feed? How do I ensure my overlays match the quality? 12:49 - How do I know if an image resource has failed to load? 16:33 - Can we have animated gifs as overlays? 19:44 - Loaded overlays do not clear upon deletion. How many can I load before I encounter issues? 21:48 - Are sound overlays played to all participants or only locally? What about sound cancellation? 23:27 - How do you uninstall a Hangout app? 25:41 - Can I make an app that uses drag and drop onto the film strip? 26:55 - Can we embed participant thumbnails elsewhere on the screen? 28:33 - How can I determine a consistent ordering for hangout participants? 31:35 - Can I access Picasa photos uploaded by another user within a hangout? Gerwin demonstrates his solution. 31:14 - How do I know when my hangout app has been unloaded for the purposes of doing cleanup? 39:28 - Will face tracking ever support multiple faces? 40:41 - Can I use WebGL in a hangouts app? 42:09 - I'm having issues with <b>...</b> From: GoogleDevelopers Views: 2032 18 ratings Time: 53:05 More in Science & Technology

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  • Google Maps API Round-up

    Google Maps API Round-up This week, Mano Marks and Paul Saxman go over recent launches and things you might have missed with the Google Maps APIs, including the new Google Time Zone API, traffic estimates with the Directions API (for enterprise customers), and the Places Autocomplete API query results and data service enhancements. From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Education

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  • Google I/O 2012 - From Weekend Hack to Funded Startup - How to Build Your Team and Raise Money

    Google I/O 2012 - From Weekend Hack to Funded Startup - How to Build Your Team and Raise Money Naval Ravikant, Rich Miner, Kevin Rose Have an idea and want to start a company? Learn how to attract investors, and what they want to see before writing a check. Hear from entrepreneurs who have raised money and VCs who have funded them. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 0 0 ratings Time: 01:00:30 More in Science & Technology

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  • YouTube API Office Hours June 6, 2012

    YouTube API Office Hours June 6, 2012 This is a recording of the YouTube API Hangout on Air from Wednesday 6/6 at 10am PDT (UTC-7). JJ Behrens interviewed Neal Norwitz, a senior engineer at YouTube and well-known Python developer, about Google's engineering culture. We also had a surprise guest, Adrian Holovaty, co-benevolent dictator for life of the open-source Django web framework, who asked several questions about fine-grained timing control in the player APIs. From: GoogleDevelopers Views: 650 14 ratings Time: 39:07 More in Science & Technology

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