This article is basically translated from Facebook engineer's articleThe speed up your app also added some of its own content.
The following topics will be introduced
Systrace
Traceview
Memory Profiling
Allocation Tracker
GPU Profiling
Hierarchy Viewer
Overdraw
Alpha
Hardware acceleration
Systrace
Systrace functions can be found in the as DDMS, but not very stable, so this is only the command-line mode.In addition Systrace can only
native. It uses CSS3 transitions for a slick performance, supports Swipable carousels and includes various UI components (from Rat Chet). The framework uses Zepto (which is nice for jQuery fans as it has a jquery-like syntax) and have integration with backbone. JS views + routers. Junior is pretty easy to use and have the documents + examples to get you started.8. Spine.js10 best mobile App development frameworksSpine Mobile is a JavaScript framework, built on top of the Spinejs, for building m
, does not allow the presence of area over the screen 1/4 area of the 3x over-draw (light red area)
Screen slide frame rate test:Method One:1. Check the graphics and view after enabling tracking in the developer options on the phone2. Launch the SDK tool Systrace, tick the app under test, click Systrace, set the continuous crawl time in the popup dialog box, and check the GFX and view options under trace Taps3. Manual sliding interface can be used t
: * * * [. OBJ/RELEASE-SHARED/X11KEYFAKER.O] Error 1Workaround:sudo apt-get install Xorg-dev3. Compile the embedded x86 version:Enter the x86 directory#./configure-embedded X86-QT-GFX-QVFB-QT-KBD-QVFB-QT-MOUSE-QVFB# Gmake# gmake InstallThe installation process is long and no errors have been encountered.Compile and install the QVFB in the PC version:Enter the pc/tools/qvfb/directory#makeIf make is present:X11KEYFAKER.CPP:48:34: Fatal error: x11/extens
Learn how to modify icons in GUI programs and how to load images.
With 2nd. The difference is that 3rd. Scalable icons for SVG format (the biggest advantage is that an icon to do, the previous use of BMP for the application of the menu icon to do four small icons). And now there's a new Image Packaging format MIF (the name is like the MIF in brew). Although the previous MBM method is also supported, it is not recommended.
To add an image icon resource to an application, the procedure is as fol
-drawing in developer options (Debug GPU Overdraw)Criteria for Acceptance:1. Black pixels are not allowed2, do not allow the existence of 4x over-drawing3, does not allow the presence of area over the screen 1/4 area of the 3x over-draw (light red area)
Screen slide frame rate test:Method One:1. Check the graphics and view after enabling tracking in the developer options on the phone2. Launch the SDK tool Systrace, tick the app under test, click Systrace, set the continuous crawl time in the p
Highcharts translation series 4: global Options and labels label options 1. global Options Description: global options are not used for any chart. You must use the Highcharts. setOptions method to set options such as lang. Highcharts. setOptions ({global :{...
Highcharts translation series 4: global Options and labels label options1. global Options
Note: The global option is not used for any chart. You must use the Highcharts. setOptions method to set options such as lang.
Highcharts. setOptions
FileGFI, GFX Genigraphics Graphic Link to represent a fileGHO Norton clone disk imageGID Windows 95 global index file (including help status)GIF CompuServe bitmap fileGIM, GIX Genigraphics Graphic Link introduction FileGKH Ensoniq EPS home cluster Disk Image FileGKS Gravis Grip Key documentGL animation formatGNA Genigraphics Graphic Link introduction FileCode generated by GNT, executable code in the Micro Focus attribute formatGNX Genigraphics Graphi
the details about how it works, so in some other subtle way there are some decision conflicts. Borrow someone's word "there is codebases that suck, and there is codebases that aren ' t used":)It's important to try to improve the code base! We've been insisting on improving it. We've made a lot of improvements in all aspects, but frankly, the rendering code has improved a lot in recent years, and no one has put the code into a full-time job of maintaining and upgrading alone, but we did!Several
~~~ Blow a dog ~~ Okay ~~ Shamelessly trash a few computers behind your head ~ I think of Warcraft ~~
So ~ Next, start installation.
Warcraft~~~
Go to a super Lite version that is only 400 M + ~~ After installation ~ Prompt to install directX ~~ Then I will install it ~~ After N attempts ~~ The prompt is still the prompt ~~~ Khan ~~ Finally, we found the solution on Wine's official website ~ Http://appdb.winehq.org/appview.php? IVersionId = 1177 ~~
After the installation, remove or rename the
/downloads/qt-creator-binary-for-linux-x11-32-bit) for Linux/X11 32-bit)
Qt 4.6.2packet qt-everywhere-opensource-src-4.6.2.tar.gz (http://qt.nokia.com/downloads/embedded-linux-cpp) for Embedded Linux)
To arm-linux-gcc-4.1.2 (that is, http://qtextended.org/downloads/toolchains/arm920t-eabi.tgz)
Download root_qtopia. I use the root_qtopia-20100108.tar.gz file in the youshanguang disk, and download tslib1.4 and tslib1.4 to FTP Server 1 of the Linux community. For details, see:
Http://www.linuxidc
UTC (World standard Time) is turned on by default in Highcharts, since China's time zone is +8, 8 hours will be subtracted after processing by highcharts.If you do not want to use UTC, there are 2 ways to use it:1. Add the following code to the page using Highcharts:[HTML]View Plaincopy
script type="Text/javascript">
Highcharts.setoptions ({global: {useutc:false}});
Script>
2, in the Highcharts source file to set up, Highcharts/js/highcharts.src.js found the following
Interested students can send me a short message in the blog park.Job DescriptionSystem Level software engineer InternHe/she'll has opportunities to participate into various software development activities as part of product development or the. The work would mainly focus on system level software areas such as OS kernel, bios/firmware development, Network/graphics O R other I/O driver Development, Imaging/media development, etc. The good performer'll has high opportunity to join Intel China after
To sum up, the things I have done so far this year include:1. It took 10 months to travel around the world through 17 countries and regions in Africa, Southeast Asia, Australia, Central and South America. The theme of this trip is surfing and photography.2. Attendance at meetings in Hong Kong, Japan, USA and London3. A book was written to O ' Reilly Publishing company on departure, titled " JavaScript Web Applications "4. Also wrote a book on Coffeescript The book will soon be published by O ' R
level of the player setting.
Ricky: I tried to change the stripping level doesn't seem to be changing, but it doesn't affect the game if it takes up a lot of memory. Let's ignore it for the moment (--)!
Gfxclientdevice: GFX (graphics acceleration \ Graphics accelerator \ Graphics (Graphicsforce Express)) client device.
Ricky: Although it occupies a large amount of memory, but this is also a prerequisite, no way to optimize. Co
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