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• Optimizing an iphone app for 3G in landscape with opengl, camera, quartz

  - by Joey

  I have an iphone app that basically uses the camera, an opengl layer, and UIViews (some drawing with Quartz). It runs ok on 3GS, but on the 3G it is unusable. Particularly, when I press a UIButton, it literally takes sometimes 10 seconds to register the press. Shark doesn't do me much good because it crashes when I try to profile even a tiny portion, and I've tried turning off some of the layers to see if they might be obvious contributors to the lag. I've noticed that turning off the camera really helps. I'm wondering if anyone has any familiarity with this and might suggest some likely causes. I had issues with extreme slowdown from running my app in landscape mode and using transforms, so considered that might be a cause, but I'm wondering if hoping for a 3G to run something with all of the above elements is just not really possible considering the camera seems to really cost a lot. The fact that the buttons are horribly delayed in their response makes me think there is something fundamental that I might be missing.

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• More than one Custome control are not working properly

  - by Kamlesh

  Hello Developers, I have developed a ASP.Net Server custom control in C# for 3.5. named "myCheckBoxList" inherited from CheckBoxList web control. Working is very simple. It just works as a two option buttons. I have taken a CheckBoxList which will show two fixed checkboxes always. When I check one checkbox then another will uncheck as vise versa. This control works perfectly only when I have placed only one instance of that control on web page. If I place more than one instance of control then it doesnt works. Please, I need solution from expert minds from developers as stackoverflow users.

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• how to access package explorer element in eclipse plugin

  - by Ankit Malik

  hi i am making an eclipse plugin which make a ui on right clicking a project in eclipse workspce . the ui contains text fields , package explorer for the current project and directory explorer for current project. i have successfully made a ui which appears on clicking a menu item on right clicking the project but it seems i can't make any jface or swt ui since they are not visible when we are using eclipse command hadlers .so in order to overcome it i made dialog pages but they have limited dialog like directorty dialog and file dialog and that too for entire window directory..... but i want package explorer and directory explorer for the project i just chose like it happens when u try making a new class in a project the browse buttons just show packages and directory struture w.r.t to current selection am i doin things wrong or is there a way out please suggest .....

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• iphone: Accessing Code for Elements Created in Interface Builder

  - by user362685

  I am attempting to create a basic tab-bar application using interface builder. I create a new project in Xcode selecting tab bar application. My question is how can I access the code that instantiates and pushes each of the views when the tab bar buttons are pressed? I would imagine that would be done by the tab bar controller, however when I write the class file from interface builder (filewrite class files), it just creates a blank generic TabBarController.h/TabBarController.m without the methods for pushing each of the views associated with the tab bar elements. I ask this because I would like to pass each view controller a reference to the data model when they are instantiated. Any help would be greatly appreciated, thanks.

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• Event handling for a dynamically added user control

  - by francisf

  Hi, I have a user control say SearchVendor.ascx which contains 4 buttons a gridview and another user control. I need to load the control dynamically actually as a modal pop up I get this code VendorProductSearch uc = Page.LoadControl("~/Controls/Proposal/VendorProductSearch.ascx") as VendorProductSearch; uc.ShowVendorProductSearch(true); _tempPlaceHolder.Controls.Add(uc); it works fine the control gets loaded properly but onclick of any button the second time the control disappears ??? I want the dynamically added control to remain until the user clicks on the cancel button Any idea as to how to achive this ? Thanks & Regards, Francis P.

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• Ruby on Rails - Adding variable to params[]

  - by miligraf

  In the controller, how can I add a variable at the end of a params[]? If I try this I get an error: params[:group_] + variable How should it be done? Edit per request Ok, I have a form that sets groups of radio buttons with names like this: group_01DRN0 Obviously I have different groups in the form (group_01AAI0, group_01AUI0, etc.) and the value is set according to the radio button selected within the group: Radio button "group_01DRN0" could have value of "21" or "22" or "23", radio button "group_01AAI0" could have value of "21" or "22" or "23", etc. In the DB I have every code (01DRN0, 01AAI0, 01AUI0, etc) so I want to select them from DB and iterate in the params value so I can get the radio button group value, I've tried this with no luck: @codes=Code.get_codes for c in @codes @all=params[:group_] + c.name end Thanks.

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• Font-awesome, input type 'submit'

  - by denis.peplin

  It seems no class for input type 'submit' in font-awesome. Is it possible to use some class from font-awesome for button input? I've added icons to all buttons (which actually links with class 'btn' from twitter-bootstrap) in my applications, but can't add icons on 'input type submit'. Or, how to use this code: input#image-button{ background: #ccc url('icon.png') no-repeat top left; padding-left: 16px; height: 16px; } html: <input type="submit" id="image-button">Text</input> (which I took from HTML: How to make a submit button with text + image in it?) with font-awesome?

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• Dashboard pattern: HorizontalScrollView with pagination or ScrollView?

  - by Macarse

  I am starting a new application and I am willing to use the Dashboard pattern. For example: The Google IO app uses it: My issue is that the amount of buttons will be more than six. I'm not sure if I should use vertical or horizontal scrolling. Vertical scrolling could be done with a ScrollView or a GridView but I am not sure which would be the easier way to implement the horizontal version. I was thinking of using an HorizontalScrollView but it doesn't have pagination. It should feel similar to the tweetdeck app. How would you implement it?

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• How to highlight text automatically inside an UIAlertView text field

  - by user333624

  Hello everyone I have an UIAlertView with a textfield that shows a default value and two buttons, one to cancel and the other one to confirm. What I am trying to do is that when the alert view is popped up the default value is highlighted so the user can override the whole value faster than manually erasing it. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Title" message:@"" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Continue",nil]; [alerta addTextFieldWithValue:@"87893" label:@"value"]; UITextField *textField = [alert textField]; campoTexto.highlighted = YES; campoTexto.keyboardType = UIKeyboardTypeNumbersAndPunctuation; [alertt show]; [alert release]; } for some reason there is a highlighted attribute for the textfield but it doesn't seem to work and there is no trail of that attribute in the Class documentation.

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• problem with Infopath Form services

  - by AB

  I want to have some url for my infopath form and give that link to user instead of going to form library and click new...how is it possible? Also when I created Infopath form I have given some text fields and button, I don't want the Infopath services buttons(Save,save as...) how I cna remove those? I published my form into document library. I click new and fill information and submit its working fine but when I reopen it again and try to submit it ...its giving me error...that some rules are not correct ...the rules I have on submit button are submit to document library and close after submitting.Any idea how to resolve this.... Any suggestions would really be appreciated...Thanks

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• How do I remove a validate class using jquery?

  - by InnateDev

  I have some options for pricing using radio buttons. When a user selects the radio button with no value my checkbox form must not be validated. here is my code: Options: <input type="radio" name="pricing_option_rect" id="pricing_imp_rect1" checked="checked" value="100">100 <input type="radio" name="pricing_option_rect" id="pricing_imp_rect2" value="200">200 <input type="radio" name="pricing_option_rect" id="pricing_imp_rect3" value="300">300 <input type="radio" name="pricing_option_rect" id="pricing_imp_rect4" value="0" />0 Checkboxes: <input type="checkbox" value="check1" name="rectcat[]" class="{validate:{required:true, minlength:1, maxlength:5}}" />One <input type="checkbox" value="check2" name="rectcat[]" />Two <input type="checkbox" value="check3" name="rectcat[]" />Three <input type="checkbox" value="check4" name="rectcat[]" />Four <input type="checkbox" value="check5" name="rectcat[]" />Five <input type="checkbox" value="check6" name="rectcat[]" />Six <input type="checkbox" value="check7" name="rectcat[]" />Seven <input type="checkbox" value="check8" name="rectcat[]" />Eight <div class="container"><label for="rectcat[]" class="error">Please Select a Minimum of ONE and a Maximum of FIVE categories!</label></div>

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• Fitts Law, applying it to touch screens

  - by Caylem

  Been reading a lot into UI design lately and Fitts Law keeps popping up. Now from what i gather its basically the larger an item is, and the closer it is to your cursor, the easier it is to click on. So what about touch screen devices where the input comes from multiple touches or just single touches. What are the fundamentals to take into account considering this? Should it be something like, the hands of the user are on the sides of the device so the buttons should be close to the left and right hand sides of the device? Thanks

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• Add CSS Class to link based on Character Count with jquery

  - by Wes

  I have links that load dynamically onto a background to make them look like buttons. Some of the links take up two lines and some of the links take up 1 line. Eithe way they need to be vertically centered. My plan to to append a class based on the number of characters and then adjust the padding from there. So if the link's text is 25 characters (including spaces) or less - append class 'small' if the link's text is greater than 25 characters - append class 'large' How would I go about doing this with jQuery?

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• Is it ok to hardcode dynamic links in a permanent view?

  - by meder

  Let's say I wanted to showcase 2-3 clickable buttons on my homepage which will be there permanently. These are links to the css, html, and javascript tag listing pages. Is it fine to just hardcode href=/tags/css and href=/tags/html right in my django templates/view? I won't change them for at least a year or so, meaning I don't think I need to add a column to the tags table to distinguish them - is this common or should I try to make it somewhat dynamic? These tags are in a table but so are 1000 other tags.

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• How to add UIview over a ViewController and its NavigationController

  - by Roxee Man

  I have a ViewController with a NavigationController and I want to add a translucent UIView with some Buttons over the ViewController when I press a ViewController button, the problem is that I can not put the UIView over the NavigationBar. How can I solve this? This is my code ( Very simple) -(void)setOpacityView { opacityVw = [[UIView alloc] initWithFrame:self.view.bounds]; opacityVw.backgroundColor = [[UIColor alloc] initWithRed:0.0 green:0.0 blue:0.0 alpha:0.8]; WPCustomButton *closeBtn = [[WPCustomButton alloc] initWithFrame:CGRectMake(230, 10, 80, 20)]; [closeBtn setTitle:@"Close X" forState:UIControlStateNormal]; [closeBtn setBackgroundColor:[UIColor clearColor]]; [closeBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [closeBtn addTarget:self action:@selector(closeView) forControlEvents:UIControlEventTouchUpInside]; [opacityVw addSubview:closeBtn]; } // --------------------------------------------------------------------------------------------------------------------- #pragma mark - Button methods -(void) closeView { [opacityVw removeFromSuperview]; } -(void)setProfileImage { [self setOpacityView]; [self.view addSubview:opacityVw]; }

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• iCalcreator 2.6 event creation sent in an email w/o attachment

  - by Jonas

  G'day everyone, I am currently trying to send meeting invitations to Outlook recipients. After reading several blogs and various literature iCalcreator seems to be the most complete iCalendar PHP class available. And the documentation is just...crazily complete. If creating a iCal .ics file is OK, I can't find a nice way to send it by email to the attendees without having them to double click on an attachment. Just like Google Calendar and Outlook do, I would like to send emails that will automatically show the buttons Accept | Tentative | Decline upon reception without any other user action involved. If anyone ever had to realize that, I would be more than happy to get your feedback/help or even just relevant guidance. Thanks

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• How to integrate history.js to my ajax site?

  - by vzhen

  I have left and right div in my website and with navigation buttons. Let's say button_1, button_2. When clicking on these button will change the right div content using ajax so means the left div do nothing. The above is what I have done but I have a problem here, the url doesn't change. And I found history.js is able to solve this issue but I cannot find any tutorial about history.js + ajax. Can anyone help me out? Thank in adv

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• Trouble adding success flag to onbeforeunload

  - by Dirty Bird Design

  having issues with onbeforeunload. I have a long form broken into segments via a jquery wizard plug in. I need to pop a confirm dialog if you hit back, refresh, close etc on any step but need it to NOT POP the confirm dialog on click of the submit button. had it working, or at least I thought, it doesn't now. <script type="text/javascript"> var okToSubmit = false; window.onbeforeunload = function() { document.getElementById('Register').onclick = function() { okToSubmit = true; }; if(!okToSubmit) return "Using the browsers back button will cause you to lose all form data. Please use the Next and Back buttons on the form"; }; </script> 'Register' is the submit button ID. Please help!

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• Calculate the contentsize of scrollview

  - by neha

  Hi all, I'm having a scrollview as the detailedview of tableview cell. There are multiple views on the detailedview like labels, buttons etc. which I'm creating through interface builder. What I'm creating through interface builder is static. I'm putting everything on a view of height 480. A label on my detailedview is having dynamic text which can extend to any length. The problem is that I need to set the scrollview's content size for which I need its height. How shall I set scrollview's height provided the content is dynamic?

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• How can I use a single UIToolbar with multiple different UIViewControllers?

  - by Aeonaut

  I have a simple app with two basic screens, a UIMapView and a UITableView. I'd like to have a toolbar at the bottom with a couple of buttons and a UISegmentedControl with two segments: "Map" and "Table". (The layout is similar to the Google Maps app that ships with the iPhone.) How can I keep the same toolbar while presenting either the UIMapView (with a UIMapViewController) or the UITableView (with a UITableViewController) when the user switches back and forth on the segmented control? Of course, I can just create an identical toolbar for each of the two different views and display them separately, but is there a better way?

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• How can I test my iPhone app on earlier than SDK 3.0 simulator, make sure it work?

  - by Cocorico

  Hi Stackers! I wrote iPhone application. Very simple! It use Cocos2D only, and all other features is very basic, no accelerometer, no camera, nothing. Just buttons and sounds. I think every iPhone can run this app (there is no limits on Cocos2D right?), but my XCode only let me use 3.0 and upwards. I want to confirm 1 thing and ask one thing: If I put "iPhone OS 2.0" in my iPhone OS Deployment Target in XCode, but my "Active SDK" in XCode still says 3.0, if I compile using this and submit to App Store, when it goes up, people who use 2.0 can still download and use the game yes? Is there way I can test in a 2.0 simulator to make sure it works? My XCode only have 3.0 and higher simulation.

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• How to add site search function to website using XHTML/HTML?

  - by felixd68

  I really want to learn how to make my own search engine for my site. I have the defined buttons and labels, but it doesn't search. I can't figure out the HTML or XHTML code for actually searching the site. This is the code I have so far: <p class="search"> <label>SEARCH</label> <input name="search" type="text" class="txt" /> <input name="search-btn" type="submit" class="btn" value="SEARCH" /> </p> Thanks!

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• Configuration and Model-View

  - by HH

  I am using the Model-View pattern on a small application I'm writing. Here's the scenario: The model maintains a list of directories from where it can extract the data that it needs. The View has a Configuration or a Setting dialog where the user can modify this list of directories (the dialog has a JList displaying the list in addition to add and remove buttons). I need some advice from the community: The View needs to communicate these changes to the model. I thought first of adding to the model these methods: addDirectory() and removeDirectory(). But I am trying to limit the number of methods (or channels) that the View can use to communicate with and manipulate the model. Is there any good practice for this? Thank you.

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• User control blank on form in VS 2008

  - by Eric

  I've created a user control that contains a table layout control with various other standard controls like buttons and labels. Yet when I add the user control to one of my forms the control is blank. I've tried building the solution and a see the user-control flicker as if it's being updated, but it remains blank. Also if I actually run the program the usercontrol can not be see on the form. I've used usercontrols like this in the past. Is there something I'm missing?

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• Expression Blend 3 (Silverlight) gives me nothing on project compile

  - by Buginator

  When I press F5 the project compiles, and the new web page launches. However, the silverlight control loads (the standard load counter counts to 100%) but then the whole control just disappear. Only the left default menu bar (feedback etc) is visible. It's a very small project, my first actually. This also happened earlier today, but then I removed each thing one at a time and found that it was some radio buttons that caused it. I deleted them and remade them and it ran fine again. Now the same thing happened again, but it is something else, not sure yet. The question is; is this a familiar bug or am I just doing something wrong? My code-behind consist mostly of visibility changes, around 20 lines of code.

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