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• Data format for content heavy iPhone app - Plist or XML?

  - by Toby

  Hello, I'm building an iPhone app that is essentially a book, it will be bundled with a lot of text-heavy content. I considered bundling the data as XML and load it when the application starts but the XML would contain a lot of nested structures and be a bit of a pain to parse. Would it be better to use a plist? I'm concerned about memory usage and plists are loaded entirely into memory - can they be parsed in chunks? Is there a maximum size to a plist and how efficient are they? I'm not sure how big the bundled content is going to be yet but I should imagine it could be anywhere from 500k to 4MB. Thanks in advance.

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• Download Large Files using java

  - by angelina

  Dear All, I M building a application in which i want to download large files on handset (mobile),but if size of file is large i m getting exception socket exception-broken pipe . inputStream = new FileInputStream(path); byte[] buffer = new byte[1024]; int bytesRead = 0; do { bytesRead = inputStream.read(buffer, offset, buffer.length); resp.getOutputStream().write(buffer, 0, bytesRead); } while (bytesRead == buffer.length); resp.getOutputStream().flush(); }

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• I don't get this C/C++ Joke

  - by Buttercup

  After reading this article on thedailywtf.com, I'm not sure that I really got the joke. It says there that some guy changed the code from int function() { int x; char data_string[15]; ... x = 2; strcpy(data_string,"data data data"); ... } to int function() { int x = 2; char data_string[15] = "data data data"; ... } everywhere in the code and that for some reason did inflate the size of the executable from 1 to 2 CDs (or maybe it didn't do that?). Obviously I'm not familiar enough with C/C++ to get this joke, but what seems strangest is that the 2nd code listing seems "cleaner"—at least from what I've been told in school (that is that initializing variables is a good thing, not a bad one).

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• UILabel with custom font displays *wrong* custom font

  - by winsmith

  I'm using this method to embed custom fonts in my iPhone app. The embedding works: When I run the following code, the fonts are listed. (Currently, I'm embedding all family members of Myriad Pro in OTF format) for( NSString *familyName in [UIFont familyNames] ){ for( NSString *fntName in [UIFont fontNamesForFamilyName:familyName] ){ NSLog(@"%@", fntName); }} When I try to set the font of a label to MyriadPro or MyriadPro-Bold, this works just as expected. However, when I set the font to MyriadPro-BoldCond, the label is still set in MyriadPro-Bold instead of the condensed version. (The font names are correct, I checked.) My Code: [recommendationLabel setFont:[UIFont fontWithName:@"MyriadPro-BoldCond" size:140]]; recommendationLabel.adjustsFontSizeToFitWidth = YES; What's the deal?

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• Monitoring file upload progress in Actionscript 3

  - by helloworlder

  I'm trying to track the progress of a file upload in AS3, and I'm getting strange behavior. When I select a file and upload it, the progress is instantaneously 100% even if the file is 10 or more megabytes, but it's not finished. The onComplete event is fired about 30 second to a few minutes later (depending on file size) when the file has really finished uploading. I've tested this locally and on the server, the behaviour is the same. Has anyone else experienced this? Very frustrating ... Otherwise, the file is uploading fine. The code is simple: myFileReference.addEventListener(ProgressEvent.PROGRESS, onUploadProgress); function onUploadProgress(e:ProgressEvent) { var pctDone:Number = (e.bytesLoaded / e.bytesTotal) * 100; trace(pctDone); }

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• copying the contents of an image file

  - by Ganesh

  I am designing an image decoder and as a first step I tried to just copy the using c. i.e open the file, and write its contents to a new file. Below is the code that I used. while((c=getc(fp))!=EOF) fprintf(fp1,"%c",c); where fp is the source file and fp1 is the destination file. The program executes without any error, but the image file(".bmp") is not properly copied. I have observed that the size of the copied file is less and only 20% of the image is visible, all else is black. When I tried with simple text files, the copy was complete. Do you know what the problem is?

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• Flash Video Gallery using Jquery

  - by Muhammad Sajid

  Hi, my question referenced to my friend. I am trying to use jquery to show flash videos(swf) like a showcase and this is what I am trying to do: Show a video by default and then have "" below that so when an user click on prev or next, it will show the next one and so on. When a video is clicked after making the selection it can either open the video on top of it in a bigger size Or play the video once right there once they click the play button. I have seen examples for images and I tried those but it did not work with flash files. Please let me know if anyone can guide me. I prefer using jquery as there are applications on the site that uses jquery. Also, I just remembered one thing, how to stop the video if they navigate to the next one. This makes me think if its a good idea to do the gallery or showcase for flash videos. Please clarify my questions. thanks

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• Advice for keeping large C++ project modular?

  - by Jay

  Our team is moving into much larger projects in size, many of which use several open source projects within them. Any advice or best practices to keep libraries and dependancies relatively modular and easily upgradable when new releases for them are out? To put it another way, lets say you make a program that is a fork of an open source project. As both projects grow, what is the easiest way to maintain and share updates to the core? Advice regarding what I'm asking only please...I don't need "well you should do this instead" or "why are you"..thanks.

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• Is there an alternative to FTP?

  - by Danny

  I am trying to find an alternative to FTP? It's a single file transfer up to 4gb. Any suggestions? maybe HTTP? Or should I stick it out with FTP? More info - We have an app that we distribute to tens of thousands of clients that upload single large files. FTP has proven to be error prone with a single file of that size. Speed is always a consideration. 'Resume' is a must. Cost shouldn't be an issue - I guess it depends.

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• 100+ tables to joined

  - by deian

  Hi guys, I was wondering if anyone ever had a change to measure how a would 100 joined tables perform? Each table would have an ID column with primary index and all table are 1:1 related. It is a common problem within many data entry applications where we need to collect 1000+ data points. One solution would be to have one big table with 1000+ columns and the alternative would be to split them into multiple tables and join them when it is necessary. So perhaps more real question would be how 30 tables (30 columns each) would behave with multitable join. 500K-1M rows should be the expected size of the tables. Cheers

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• How do I place an image centered in a DIV and text to the right? Overflow problems

  - by user2218041

  I have a div container where I want to put in a centered image and a small description to the right. The specifications are: The image should have a bottom margin of 35px. The image should always show fully on the screen, so it resizes when the screen does. It should have the biggest size possible, but never be cropped and never use scrollbars. The image should be centered with respect to the container, with the text showing on the right margin. The text should be left-aligned horizontally, center-aligned vertically and have a 30px separation from the image. I've tried using a table in the container and using divs, but I can't find a clean solution. I can show you the non-working code I've tried on request.

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• Cell contents changing after I select rows present outside its height?

  - by wolverine

  I have set the size of the tableView that I show as the popoverController as 4*rowheight. And I am using 12cells in the tableView. Each cell contains an image and a label. I can see all the cells by scrolling. Upto 5th cell its ok. After th2 5th cell, the label and the image that I am using in the first four cells are being repeated for the remaining cells. And If I select the cell, the result is accurately shown. But when I again take the tableView, the image and labels are not accurate even for the first 5 cells. All are changed but the selection is giving the correct result. Did anyone got the idea what the problem is??

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• Processing XML file with Huge data

  - by Manish Dhanotiya

  Hi,be m I am working on an application which has below requiements - 1. Download a ZIP file from a server. 2. Uncompress the ZIP file, get the content (which is in XML format) from this file into a String. 3. Pass this content into another method for parsing and further processing. Now, my concerns here is the XML file may be of Huge size say like '100MB', and my JVM has memory of only 512 MB, so how can I get this content into Chunks and pass for Parsing and then insert the data into PL/SQL tables. Since there can be multiple requests running at the same time and considering 512MB of memory what will be the best possible to process this. How I can get the data into Chunks and pass it as Stream for XML parsing. I googled on this, but didnt find any implementation. :( Thanks,

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• Regarding Creating Business application using Silverlight

  - by vijay

  Hi, We are in the conceptual phase to create a relatively medium size enterprise business product application using Silver light 4.0, Entity Framework and WCF. 1. Is it adivceable to use Silverlight 4.0 for this enterprise business application development or should we go in for MVC.NET / ASP.NET? 2. We have planned to use REST based WCF service. How complex would it be to write the information back to the REST WCF service? I appreciate and welcome your advice / suggestion. If you need any further details do let me know, i will be happy to share. Thanks in advance.

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• CSS/Jquery How can I display a div directly under button?

  - by user342391

  I have a button that when hovered displays a div. How can I postion this div to appear directly under the button when displayed??? <script type="text/javascript"> $(document).ready(function(){ $(".plans").hover(function() { $("#planssubnav").show("slow"); }, function(){ $("#planssubnav").hide("slow"); }); }); </script> <a href="/plans" style="font-size:14px;" class="plans fg-button fg-button-icon-right ui-state-default ui-corner-all"><span class="ui-icon ui-icon-circle-triangle-s"></span>Plans</a> <div id="planssubnav" style="display:none"> <h1> content</h1> </div>

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• JS Framework that doesn't use CSS selectors?

  - by RoToRa

  A thing that I noticed about most JavaScript frameworks is that the most common way to find/access the DOM elements is to use CSS selectors. However this usually requires the framework to include a CSS selector parser, because they need to support selectors, that the browser natively doesn't, foremost the frameworks own proprietary extensions. I would think that these parsers are large and slow. Wouldn't it be more efficient to have something that doesn't require a parser, such a chained method calls? Some like: id("example").children().class("test").hasAttribute("href") instead of $("#example > .test[href]") Are there any frameworks around that do something like this? And how do they compare with jQuery and friends in regard to performance and size? EDIT: You can consider this a theoretical discussion topic. I don't plan to use anything other than jQuery in any practical projects in near furure. I was just wondering why there aren't any other, possibly better approaches.

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• In a pre-commit hook - how to access/compare current and previous versions of files

  - by EthanML

  I'm trying to add to our existing pre-commit SVN hook so that it will check for and block an increase in file size for files in specific directory/s. I've written a python script to compare two file sizes, which takes two files as arguments and uses sys.exit(0) or (1) to return the result, this part seems to work fine. My problem is in calling the python script from the batch file, how to reference the newly committed and previous versions of each file? The existing code is new to me and a mess of %REPOS%, %TXN%s etc and I'm not sure how to go about using them. Is there a simple, standard way of doing this? It also already contains code to loop through the changed files using svnlook changed, so that part shouldn't be an issue. Thanks very much

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• website is very slow on IE

  - by Bhupi

  Hi, I need to know what can be the main reasons (apart from the basics like grouping CSS selectors, reducing image size, using image sprite etc.) which makes a website slow on Internet Explorer, because my website works fine on the others like FF, chrome etc. Is it the huge use of Javascript framework (ie. jQuery, extjs, prototype)? Is it because of the use of plugins based on JS framework? Should I use core javascript and remove the use of any js framework? Should I try to avoid using jQuery(document).ready()? in case of jQuery framework? Above some of the questions which I know and please answer the questions which I couldn't ask because of lesser knowledge about these. I need to make my website perform well on IE (6,7,8) also please suggest. Thanks

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• UDP + total order, non-reliable

  - by disown

  I'm trying to find a version of UDP which just alleviates the restriction of a maximum size of the message sent. I don't care about reliability or partial retransmission, if all chunks arrive I want the message to be assembled from the chunks in sending order and delivered to the listening app. If one or more chunks are missing I would just like to discard the message. The goal is to have a low-latency notification mechanism about real time data, but with the added support for bigger messages than what would fit in an IP datagram. I would like the protocol to be one way only, and not have long connection setup times. An optional feature to be able to respond to a received message wouldn't hurt (a concept of an unreliable connection), but is not necessary.

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• How to line up columns using paste(1)? or how to make an aligned table merging lines in the shell?

  - by nn

  Hi, I want to merge lines such that the merged lines are aligned on the same boundary. UNIX paste(1) does this nicely when lines all meet at the same tab boundary, but when lines differ in size (in the file that lines are being merged into), the text comes out awkward. Example of paste(1) that has the desired effect: $ echo -e "a\nb\nccc\nd" | paste - - a b ccc d Example of paste(1) with undesired effect: $ echo -e "a\nb\ncccccccccccc\nd" | paste - - a b cccccccccccc d Note how the 2nd column doesn't line up. I want 'b' to line up with 'd', which requires an additional tab. Unfortunately I believe this is the limit for the paste utility, so if anyone has any idea of how to get the desired effect above, I'd love to hear it.

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• How to scroll the content without scrolling the image in the background using UIScrollView ?

  - by Raymond Choong

  I am trying to scroll the content without scrolling the image in the background using UIScrollView. I am using IB and setting the FileOwner View to point to the Scroll View (Image View is a child of the Scroll view). I have made the image height to be 960 pixels. I have also set scrolling content size in the vierController that owns this UIView (void)viewDidLoad { UIScrollView *tempScrollView = (UIScrollView *)self.view; tempScrollView.contentSize=CGSizeMake(320, 960); } My problem is that the Image only appears moves along with the content. I have tried taking out the settings in viewDidLoad, but the scrolling cease to function. I have also tried changing the location of the image and have it placed under VIEW instead of Scoll View (by the way Scroll View is a child of VIEW), but that resulted in the app breaking (termination error). Any advice would be appreciated.

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• Do you bother to write a pretty error page?

  - by Chacha102

  So, everyone is really used to the errors that PHP gives you. They look kind of like this: Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 2 bytes) in /path/to/file(437) on line 21 My question is, do you put in the time to make your error pages more useful? I find that I am able to debug a lot faster using my own error page: I find this to be a lot better than the PHP errors because it gives me a stack trace, the usual error message, along with the actual location of the error, and more. Also, are there any downsides from creating your own development error pages. Obviously you wouldn't want to have a user see this page, but what about during development?

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• How can I get gradients working in IE9?

  - by gladoscc

  CSS: .silver { color: #636363; border: solid 1px #9C9C9C; background: #D6D6D6; /*important part*/ background: -webkit-gradient(linear, left top, left bottom, from(#E8E8E8), to(#BABABA)); background: -moz-linear-gradient(top, #E8E8E8, #BABABA); -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#e8e8e8', endColorstr='#bababa')"; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#e8e8e8', endColorstr='#bababa'); padding: 2px 5px 2px 5px; -webkit-border-radius: 5px; -moz-border-radius: 5px; border-radius: 5px; margin-right: 5px; font-size: 95%; } This works when I apply to class to a input / submit button, but the gradients do not display when I apply the class to a span or div. How can I get gradients working in IE9?

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• Dynamic Button Layout without hard coding positions

  - by mmc

  I would like to implement a view (it will actually be going into the footer of a UITableView) that implements 1-3 buttons. I would like the layout of these buttons (and the size of the buttons themselves) to change depending on which ones are showing. An example of almost the exact behavior I would want is at the bottom of the Info screen in the Contacts application when you are looking at a specific contact ("Add to Favorites" disappears when it is clicked, and the other buttons expand to take up the available space in a nice animation). As I'm running through the different layout scenarios, I'm hard coding all these values and I just think... "this is NOT the way I'm supposed to be doing this." It even APPEARS that Interface Builder has some features that may do this for me in the ruler tab, but I'll be darned if I can figure out how they work (if they work) on the phone. Does anyone have any suggestions, or a tutorial online that I could look at to point me in the right direction? Thanks much.

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• how to restore very large .bak file (180 GB) in SQL Server 2008

  - by Umutos

  Hello! I have a verly large .bak file (180 GB) which was stored in Microsoft SQL Server 2008 and I have to restore it. I first installed Microsoft SQL Server 2008 Express and tried to restore it in MS SQL management studio express but it didn't work because there is a size limit. Does anybody know a method how i can restore the file? Its the first time I work with Microsoft SQL and I have no clue what to do. Its really urgend and I would be really helpful for any help! Thanks a lot! Umutos

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