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• Using in app purchase to unlock features vs. using free & paid app versions for iPhone

  - by yabada

  I have an app that I was going to release as a free (lite) version with some of the total functionality and a paid full version with advanced functionality. Now, with in app purchase for free apps I am thinking of going that route with the ability to unlock features as needed. I'm not talking about a trial version that expires.I want people to be able to try out the app and get an idea of the interface and functionality before deciding to purchase the full functionality of each major section of the app, basically. Here's an analogy of what my app would be like. Let's say you have a cooking app that teaches you to cook in different styles. There could be major section for French, Italian, and Chinese. Each section could have some rudiments unlocked in the free app so users can see the UI and basics of the functionality. Then, the user could decide to purchase each major section (or not) individually with in app purchase or buy the full versioned app (with the free/paid model). One concern I have with offering a free app with in app purchase would be with feedback. I would be very clear in my description in the app store that there is in app purchase for full features but I'm worried that less serious users could/would leave negative feedback. I suppose that's always a risk but curious about any experience with this. It also seems that it could be a whole lot more complicated keeping track of what portions of the app are locked and unlocked with in app purchase. I know I'd have to have all the code for the full functionality and "lock" the portions that haven't been purchased. How do people usually lock portions of their code? I'm not talking about the process of purchasing (I've read the In App Purchase Programming Guide) but after the purchase has been made. Would I just keep track of what the user has purchased and put conditionals on the sections that are initially locked? Or is there another way to do this as well? My instinct is for the in app purchase (particularly since users could purchase the major sections that they want individually).

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• To know is the object already retrieved in inject

  - by zerkms

  Is it possible to know that particular dependency already has been satisfied by ninject kernel? To be clear: Let's suppose we have this module: Bind<IA>().To<A>(); Bind<IB>().To<B>(); And some "client"-code: var a = kernel.Get<IA>(); // how to get here "true" for assumption: "IA was requested (once)" // and "false" for: "IB was not requested ever"

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• Avoid hardcoding iPhone screen size with programmatic view creation

  - by miorel

  Hi, I was looking up how to create a view programmatically and found the following example code: self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; This works great, except I don't like that it hardcodes the size of the screen. Is there a way to look up the size of the screen? An important point someone brought up is that if the app is running during a phone call then the screen will be slightly smaller because of the green "return to call" bar.

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• Connect to ibm mq with jms . Specify the channel and queue manager

  - by bhargav

  How do i specify which queue manager to connect to in my system properties. Here is the code: Properties properties = new Properties(); properties.setProperty("java.naming.factory.initial", "com.ibm.mq.jms.context.WMQInitialContextFactory"); properties.setProperty("java.naming.provider.url", "localhost:1414/SYSTEM.DEF.SVRCONN"); Context context = new InitialContext(properties); factory= (QueueConnectionFactory)context.lookup("TESTOUT"); context always gets TEST que only not able to connect to TESTOUT queue

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• RESTEasy - simple string array/collection marshalling

  - by peperg

  Is there a simple way for marshalling and unmarshalling String[] or List in RESTEasy? My code sample : @GET @Path("/getSomething") @Produces(MediaType.APPLICATION_JSON) public List<String> getSomeData() { return Arrays.asList("a","b","c","d"); } Above gives me an Exception : Could not find MessageBodyWriter for response object of type: java.util.Arrays$ArrayList of media type: application/json

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• Visual Studio Lightswitch Beta2

  - by Elmex

  What are your experiences with Beta2 of Visual Lightswitch? Can it already be used for real life projects? Does anybody know, when the final (RTM) version will be out? I am very intersting in using Lightswitch in the future for RAD, but I am a litte bit self-conscious, if the tool is flexible enough for my dividual requirements and if a Lightswitch solution can be extended with own code !? Can it be mixed with "normal" Silverlight?

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• Create a screen like the iPhone home screen with Scrollview and Buttons

  - by Anthony Chan

  Hi, I'm working on a project and need to create a screen similar to the iPhone home screen: A scrollview with multiple pages A bunch of icons When not in edit mode, swipe through different pages (even I started the touch on an icon) When not in edit mode, tap an icon to do something When in edit mode, drag the icon to swap places, and even swap to different pages When in edit mode, tap an icon to remove it Previously I read from several forums that I have to subclass UIScrollview in order to have touch input for the UIViews on top of it. So I subclassed it overriding the methods to handle touches: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { //If not dragging, send event to next responder if (!self.dragging) [self.nextResponder touchesBegan:touches withEvent:event]; else [super touchesBegan:touches withEvent:event]; } In general I've override the touchesBegan:, touchesMoved: and touchesEnded: methods similarly. Then in the view controller, I added to following code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; UIView *hitView = (UIView *)touch.view; if ([hitView isKindOfClass:[UIView class]]) { [hitView doSomething]; NSLog(@"touchesBegan"); } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { // Some codes to move the icons NSLog(@"touchesMoved"); } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSLog(@"touchesEnded"); } When I run the app, I have the touchesBegan method detected correctly. However, when I tried to drag the icon, the icon just moved a tiny bit and then the page started to scroll. In console, it logged with 2 or 3 "touchesMoved" message only. However, I learned from another project that it should logged tonnes of "touchesMoved" message as long as I'm still dragging on the screen. (I'm suspecting I have the delaysContentTouches set to YES, so it delays a little bit when I tried to drag the icons. After that minor delay, it sends to signal back to the scrollview to scroll through the page. Please correct me if I'm wrong.) So if any help on the code to perform the above tasks would be greatly appreciated. I've stuck in this place for nearly a week with no hope. Thanks a lot.

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• Cartesian product in Scheme

  - by John Retallack

  I've been trying to do a function that returns the Cartesian Product of n sets,in Dr Scheme,the sets are given as a list of lists,I've been stuck at this all day,I would like a few guidelines as where to start,I've wrote a pice of code but it dosen't work. (define cart-n(?(l) (if (null? l) '(()) (map (?(lst) (cons (car ( car(l))) lst)) (cart-n (cdr l) )))))

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• How to transverse a Btree?

  - by Phenom

  I have a BST and I'm trying to figure out how transverse it so that the keys are displayed ascending order. All I can figure out is that this can be done with a recursive function. What's the pseudo-code to do it?

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• How to reuse layouts in WPF

  - by Ingó Vals

  I'm trying to create a application that will be tabbed where each tab will have a button area and a view area. Now each tab will essentially have the same layout just different things in the layout and I wanted to be able to reuse the same layout so that I won't have to change at many places ( it's just not good programming ). Can I accomplish this using resources or perhaps Styles. Please supply a light code example if possible.

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• JavaScript on the server-side like PHP

  - by Nathan Campos

  I'm now thinking to establish my server-side code in JavaScript, and begin to do all on it, but I want to know about its security and flexibility compared to PHP. I want to know too, if it can be successfully used to develop things like forum boards, full web-sites and things like this, as PHP does.

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• php_network_getaddresses: getaddrinfo failed: Name or service not known

  - by Rob

  Here is a snippet of my code $fp = fsockopen($s['url'], 80, $errno, $errstr, 5); if($fp){ fwrite($fp, $out); fclose($fp); When I run it, it outputs: unable to connect to www.mydomain.net/1/file.php:80 (php_network_getaddresses: getaddrinfo failed: Name or service not known I can't figure out why. Any help would be greatly appreciated. EDIT: I forgot to mention that I'm using this to submit GET data to the $s['url']

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• How to get base64 encoded contents for an ImageReader?

  - by htf

  Hi. How do I read an image into a base64 encoded string by its ImageReader? Here's example source code using HtmlUnit. I want to get the base64 String of img: WebClient wc = new WebClient(); wc.setThrowExceptionOnFailingStatusCode(false); wc.setThrowExceptionOnScriptError(false); HtmlPage p = wc.getPage("http://flickr.com"); HtmlImage img = (HtmlImage) p.getByXPath("//img").get(3); System.out.println(img.getImageReader().getFormatName());

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• Scale background image to wrap content of layout

  - by bjg222

  I have a layout that contains some text fields and has a background image that's displayed at the top of my activity. I'd like the background image to scale to wrap the content (don't care about aspect ratio). However, the image is larger than content, so the layout instead wraps the background image. Here's my original code: <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" android:background="@drawable/header"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="Jhn Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> After searching through some other questions, I found these two: How to wrap content views rather than background drawable? Scale a Drawable or background image? Based on this, I created a FrameLayout w/ an ImageView showing the background. Unfortunately, I still can't get it to work. I want the height of the background image to shrink/expand w/ the size of the text views, but with the FrameLayout, the ImageView fits to the size of it's parent, and I can't find a way to make the parent fit to the size the text view layout. Here's my updated code: <FrameLayout android:layout_width="fill_parent" android:layout_height="wrap_content" > <ImageView android:src="@drawable/header" android:layout_width="fill_parent" android:scaleType="fitXY" android:layout_height="fill_parent" /> <RelativeLayout android:layout_width="fill_parent" android:id="@+id/HeaderList" android:layout_gravity="top" android:layout_height="wrap_content" > <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/NameText" android:text="John Doe" android:textColor="#FFFFFF" android:textSize="30sp" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:paddingLeft="4dp" android:paddingTop="4dp" /> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:textColor="#FFFFFF" android:layout_alignParentLeft="true" android:id="@+id/HoursText" android:text="170 hours" android:textSize="23sp" android:layout_below="@+id/NameText" android:paddingLeft="4dp" /> </RelativeLayout> </FrameLayout> Does anybody have any suggestions for how best to make an image scale to the size of the contents of some layout? I'm not concerned with the aspect ratio of the image, as it won't matter, I just want it to fill the background. Thanks!

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• Why doesn't genstrings convert NSLocalizedStringFromTable entries to table.strings?

  - by juan tendero

  In my source code I have some lines like NSLocalizedStringFromTable(@"Info", @"en", @"Title of this view"). When I subsequently call genstrings -o en.lproj ./Classes/*.m I would not get the expected file en.strings but Localized.strings, although I've read in the genstrings-manpage that it would generate a table.strings file from NSLocalizedStringFromTable(a, table, c) function. Am I wrong? How would I create a table.strings file then?

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• Passing local variables to Erlydtl block

  - by Justin

  Hi, I've got a block of erlydtl code which I use repeatedly and would like to abstract to some kind of block / partial template. The issue is that I need to pass the block a local variable. This is possible with Rails partial templates; it looks like it's possible with Django's blocks [albeit with some kind of Python hackery]; I'm wondering if it's possible with Erlydtl [Erlang implementation of Django templates] Ideas ? Thanks you.

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• eclipse 3.4 (ganymede) package collision with type

  - by Monis Iqbal

  We have a package that ends with exception e.g. package a.b.c.exception; Our code base had no issues up till eclipse 3.3, however when we shifted to eclipse 3.4, it started giving errors related to this package: "The package a.b.c.exception collides with a type" When I refactor the package name to a.b.c.exceptions, there are no issues. Is this due to a bug in eclipse 3.4 or is there some setting to rectify this behavior?

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• Insert default value if input-text is deleted

  - by Kim Andersen

  Hi all I have the following piece of jQuery code: $(".SearchForm input:text").each(function(){ /* Sets the current value as the defaultvalue attribute */ if(allowedDefaults.indexOf($(this).val()) > 0 || $(this).val() == "") { $(this).attr("defaultvalue", $(this).val()); $(this).css("color","#9d9d9d"); /* Onfocus, if default value clear the field */ $(this).focus(function(){ if($(this).val() == $(this).attr("defaultvalue")) { $(this).val(""); $(this).css("color","#4c4c4c"); } }); /* Onblur, if empty, insert defaultvalue */ $(this).blur(function(){ alert("ud"); if($(this).val() == "") { $(this).val($(this).attr("defaultvalue")); $(this).css("color","#9d9d9d"); }else { $(this).removeClass("ignore"); } }); } }); I use this code to insert some default text into some of my input fields, when nothing else is typed in. This means that when a user sees my search-form, the defaultvalues will be set as an attribute on the input-field, and this will be the value that is shown. When a user clicks inside of the input field, the default value will be removed. When the user sees an input field at first is looks like this: <input type="text" value="" defaultvalue="From" /> This works just fine, but I have a big challenge. If a user have posted the form, and something is entered into one of the fields, then I can't show the default value in the field, if the user deletes the text from the input field. This is happening because the value of the text-field is still containing something, even when the user deletes the content. So my problem is how to show the default value when the form is submitted, and the user then removes the typed in content? When the form is submitted the input looks like this, and keeps looking like this until the form is submitted again: <input type="text" value="someValue" defaultvalue="From" /> So I need to show the default value in the input-field right after the user have deleted the content in the field, and removed the focus from the field. Does everyone understand what my problem is? Otherwise just ask, I have struggled with this one for quite some times now, so any help will be greatly appreciated. Thanks in advance, Kim Andersen

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• How to get selected value of a html select with asp.net

  - by HasanGursoy

  I have code below: <select id="testSelect"> <option value="1">One</option> <option value="2">Two</option> </select> <asp:Button ID="btnTest" runat="server" Text="Test it!" onclick="btnTest_Click" /> I need to get selected options' value on postback. How can I do this with asp.net?

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• Java: Using Comman line arguments to process the names of files

  - by Kat

  I'm a writing a program that will determine the number of lines, characters, and average word length for a text file. For the program, the specifications say that the file or files will be entered as a command line argument and that we should make a TestStatistic object for each file entered. I don't understand how to write the code for making the TestStatistic objects if the user enters more than one file.

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• Apple Push Notification Service - notification messages aren't sent to iphone device

  - by crazywood

  Hi all, I constructed provider code with using C# and it was able to send notification messages to iphone devices successfully. But since yesterday, it hasn't worked. Also it seems to connect APNS successfully and send notification message. Unfortunately, no notification message is received by iphone device. I controlled internet connection and device token of iphone device. What else can I do? Thanks in advance...

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• Is One Tool or a Suite of Tools Better for Scrum?

  - by Rob Wells

  G'day, Edit: We've been using Scrum very successfully for several years on several projects of varying sizes. In fact, our team developed the successful iPlayer project for the BBC using a classical Scrum approach. After using various combinations of tools, some high-tech, some low-tech, across these projects we now wish to try adopting a suitable tool suite. Our manager is to some extent attempting to force the adoption of a single suite of tools for Scrum. I've looked at the SO question "Best Scrum tools" and most people seem to recommend either: a suite of low-tech solutions, e.g. whiteboards, post-its, index cards, etc., or a monolithic tool that tries to satisfy as much as possible of the process, e.g. Agilo, Mingle, ScrumWorks, Target Process, etc. Our team is currently evaluating several different Scrum tools. However, we are looking at selecting a single, monolithic tool, e.g. Agilo. All of the "one-stop" solutions have their strengths and weaknesses with the serious enterprise type solutions being the best sort of fit. But all have some short comings. After reading the paper "Peer Code Review: An Agile Process" over at SmartBear I started wondering if we were trying to force adoption of a tool on a "best fit" basis. I think you can take a couple of reference artefacts of the Scrum development process, say user stories, epics and themes, and the code base which must use a well-known SCM, e.g. SVN, Hg, etc. Then if we take that as the common reference points for the tools employed then we would be able to use a group of tools to handle the different aspects of the Scrum process rather than try forcing a fit of a single tool would is a bit like forcing a square peg into the round hole. In this way, providing you've agreed your common reference points, you can use several tools, each performing their role better than a could be done by a single component in a monolithic tool suite. Is this a more sensible approach? Are the two reference points I mentioned above suitable, or is their a better choice of points where the tools would meet? cheers,

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• ASP.NET MVC2 - Resolve Parameter Attribute in Model Binder

  - by Nathan Taylor

  Given an action like: public ActionResult DoStuff([CustomAttribute("foo")]string value) { // ... } Is there any way to resolve the instance of value's CustomAttribute within a ModelBinder? I was looking at the MVC sources and chances are I'm just doing it wrong, but when I tried to replicate their code which retrieves the BindAttribute for a complex model, calling GetAttributes() did not return the attribute I am looking for. DefaultModelBinder GetTypeDescriptor(controllerContext, bindingContext).GetAttributes();

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• Single Regex for filtering roman numerals from the text files.

  - by Nains

  I am stuck in between of a problem where only one pass of regular expression is allowed( some old hard code). I need the regex for roman numerals. I have tried the standard one i.e. ^(?i)M*(D?C{0,3}|C[DM])(L?X{0,3}|X[LC])(V?I{0,3}|I[VX])$, but the problem is it allows null( '') values also. Is there any way around to check is problem?

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• Firefox 3 only CSS Hack

  - by Parrfolio

  Looking for a Firefox 3 CSS hack that doesn't inherit in Firefox 3.6. html>/**/body .blockmeta .date-ui, x:-moz-any-link, x:default { border:1px solid #ccc; border-bottom:2px solid #ccc; background:#f2f2f2; margin-top:-1px; } The code above seems to also work in Firefox 3.6 which is undesirable.

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