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• Remove clear button (grey x) to the right of UISearchBar when cancel button tapped

  - by David Foster

  Right, to begin my question, here's some screenies of the problem already solved by the Spotify app: Spotify's Step 1: Standard UISearchBar not in editing mode. Spotify's Step 2: UISearchBar now in editing mode. Search term entered. Cancel button slides in from the right, and the clear button (grey x) appears. Spotify's Step 3: Cancel button pressed; keyboard slides out and the search bar is no longer in editing mode. Search term remains and the grey x button is now hidden. At present, the following code fires off when my cancel button is pressed: - (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar { [searchBar resignFirstResponder]; [searchBar setShowsCancelButton:NO animated:YES]; } Which results in: My Step 3: Search bar now not in editing mode. Cancel button and keyboard has slid out. Search term remains but so does the grey x. So, my question is this: given that -resignFirstResponder (and -endEditing:, FYI) does not hide the grey x button when a search bar has had text entered into it, how does one hide it? Thanks again, friends.

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• Single-Stage vs Two-Stage Animation for iPhone Apps?

  - by Devoted

  What are single-state and two-stage animation for rotating an iPhone window? This is the "error" message I get in the Debugger Console (nothing crashes): Using two-stage rotation animation. To use the smoother single-stage animation, this application must remove two-stage method implementations. I was working through the book "Beginning iPhone Development: Exploring the iPhone SDK" by Apress (Dave Mark, Jeff LaMarche) on the Swap Project.

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• how to uload photo/image to facebook via iphone application

  - by user275802

  Hey all. i am integrating facebook with my iphone application. i can share text message in facebook, but i want to share/ upload photos to facebook through my iphone application. please let me know is there soution for this. i am trying the facebook sample code but it is giving me some errors: i searched out that error but other developer also facing this type of error. please let me know if there is some one who did upload/ share a photo on facebook in iphone application. Thanks in advance.

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• TableView frame not resizing properly when pushing a new view controller and the keyboard is hiding

  - by Pete

  Hi, I must be missing something fundamental here. I have a UITableView inside of a NavigationViewController. When a table row is selected in the UITableView (using tableView:didSelectRowAtIndexPath:) I call pushViewController to display a different view controller. The new view controller appears correctly, but when I pop that view controller and return the UITableView is resized as if the keyboard was being displayed. I need to find a way to have the keyboard hide before I push the view controller so that the frame is restored correctly. If I comment out the code to push the view controller then the keyboard hides correctly and the frame resizes correctly. The code I use to show the keyboard is as follows: - (void) keyboardDidShowNotification:(NSNotification *)inNotification { NSLog(@"Keyboard Show"); if (keyboardVisible) return; // We now resize the view accordingly to accomodate the keyboard being visible keyboardVisible = YES; CGRect bounds = [[[inNotification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue]; bounds = [self.view convertRect:bounds fromView:nil]; CGRect tableFrame = tableViewNewEntry.frame; tableFrame.size.height -= bounds.size.height; // subtract the keyboard height if (self.tabBarController != nil) { tableFrame.size.height += 48; // add the tab bar height } [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(shrinkDidEnd:finished:contextInfo:)]; tableViewNewEntry.frame = tableFrame; [UIView commitAnimations]; } The keyboard is hidden using: - (void) keyboardWillHideNotification:(NSNotification *)inNotification { if (!keyboardVisible) return; NSLog(@"Keyboard Hide"); keyboardVisible = FALSE; CGRect bounds = [[[inNotification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue]; bounds = [self.view convertRect:bounds fromView:nil]; CGRect tableFrame = tableViewNewEntry.frame; tableFrame.size.height += bounds.size.height; // add the keyboard height if (self.tabBarController != nil) { tableFrame.size.height -= 48; // subtract the tab bar height } tableViewNewEntry.frame = tableFrame; [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDelegate:self]; [UIView setAnimationDidStopSelector:@selector(_shrinkDidEnd:finished:contextInfo:)]; tableViewNewEntry.frame = tableFrame; [UIView commitAnimations]; [tableViewNewEntry scrollToNearestSelectedRowAtScrollPosition:UITableViewScrollPositionMiddle animated:YES]; NSLog(@"Keyboard Hide Finished"); } I trigger the keyboard being hidden by resigning first responser for any control that is the first responder in ViewWillDisappear. I have added NSLog statements and see things happening in the log file as follows: Show Keyboard ViewWillDisappear: Hiding Keyboard Hide Keyboard Keyboard Hide Finished PushViewController (an NSLog entry at the point I push the new view controller) From this trace, I can see things happening in the right order, but It seems like when the view controller is pushed that the keyboard hide code does not execute properly. Any ideas would be really appreciated. I have been banging my head against the keyboard for a while trying to find out what I am doing wrong.

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• OpenGLES mix and match blending options complicated question

  - by DevDevDev

  So I have a background line drawing, black and white. I want to be able to draw over this, keeping the black lines in there, and drawing only where it is white. I can do this by using glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA); And the black stays black and white gets whatever color I want. However in the white areas, I want to be able to draw some color, pick to another color and then blend. However this doesn't work because the blend function is messed up. So what I was thinking is having a linedrawing framebuffer, and a user-drawing framebuffer. The user draws into the userdrawing framebuffer, with a different blending, and then I switch blending options and draw into the linedrawing framebuffer. But i don't know enough OpenGL to say whether or not this will work or is a stupid idea. Thanks a lot

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• Build an Xcode project on a Linux machine

  - by d11wtq

  Without writing a GNUmakefile by hand, do any tools exist that understand Xcode projects and can build then directly against GNUstep, thus simplifying (slightly) the work required to keep projects functional under Cocoa/Mac and GNUstep/Linux? Basically, is there an xcodebuild style app for Linux? I looked at pbtomake a few weeks ago but it seems to be a dead project.

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• Referencing Entity from external data model - Core Data

  - by Ben Reeves

  I have a external library which includes a core data model, I would like to add a new entity to this model which has a relationship with one of the entities from the library. I know I could modify the original, but is there a way to without needing to pollute the library? I tried just creating a new model with an entity named the same, but that doesn't work: * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Can't merge models with two different entities named 'Host''

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• Core-data: when accessing a relationship, the count method on NSSet fails

  - by lordsandwich

  I'm trying to access a relationship (one to many) programatically. My Data model contains an NSManagedEntity called language (with a two string attributes) with a relationship to an entity called WordCategory (one-to-many). I use an NSFetchRequest to get all the Language entities. that works fine. I get the valueForKey for the relationship and that works fine. I can work with its objects. However, when I try to send the message count to the NSSet that stores the WordCategory objects I get a In other words, this line works: NSLog(@"word category count %@",[[wordCategory anyObject] valueForKey:@"name"]); This one doesn't: NSLog(@"word category count %@",[wordCategory count] I get a the message: EXC_BAD_ACCESS in the debugger. Here's the rest of the code: NSManagedObjectContext *moc = [myAppDelegate managedObjectContext]; NSFetchRequest *request = [[NSFetchRequest alloc] init]; [request setEntity:[NSEntityDescription entityForName:@"Language" inManagedObjectContext:moc]]; NSError *error = nil; NSArray *results = [moc executeFetchRequest:request error: &error]; if (error) { [NSApp presentError:error]; return; } NSManagedObject *obj = [results objectAtIndex:0]; NSSet *wordCategory = [obj valueForKey:@"category"]; NSLog(@"word category count %@",[wordCategory count]); I'll appreciate any light than anybody can shed in this mystery. Thanks for your help!

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• Need multiple views to respond to a touch event in an iPhone app

  - by Joel

  Setup: I have two views that I need to respond to the touch event, and they are layered out on top of one another. View 1 is on top of View 2. View 2 is a UIWebView. View 1 is sublclassed to capture the touch event. My problem is that if I try to call the UIWebView event handlers (touchesBegan: and touchesEnded:) from within the event handlers of View 1, which is the first responder, nothing happens. However if I set View 1 to userInteractionEnabled = NO, then the touch goes through that view and is processed properly by the 2nd view. Any ideas on how I can have 2 views respond to a touch event? Unfortunately the 2nd view is a UIWebView, so I need to actually call the event handler and not a different method, etc... Thanks in advance for any advice, Joel

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• Subclassing an NSTextField

  - by Hooligancat

  Given all the complex things I seem to cover every day, this appears to be a "what the heck am I doing wrong that seems to simple?" scenario! I would like to subclass an NSTextField to change the background color and text color. For simplicity sake (and to help anyone who hasn't ever subclassed anything before), here is the example of my (simplified) subclass MyNSTextFieldSubclass... Step 1: Create the subclass file: First the header file @interface MyTextFieldSubclass : NSTextField { } @end And the method file @implementation MyTextFieldSubclass -(NSColor *)backgroundColor { return [NSColor redColor]; } -(NSColor *)textColor { return [NSColor yellowColor]; } @end Step 2: Drag an NSTextField to a window in Interface Builder, select the Identity tab in the inspector and select the class MyTextFieldSubclass Step 3: Save the IB file, build and run the application Problem When I run the build, the text field does not reflect the color subclassing. However, I know the subclass is being called because if I add the following method, it gets called on text changes. -(void)textDidChange:(NSNotification *)notification { NSLog(@"My text changed"); } So why does the color change not occur on the text fields? I know that I can set the color in IB, but for anyone who has dealt with a lot of UI elements that all need the same styling, subclassing makes life way, way easier. Ironically, I have never had to subclass an NSTextField before and this one has me stumped. As usual, any and all help very much appreciated. I'm sure it will turn out to be a "Doh!" moment - just cant see the wood for the trees right now (plus I'm exhausted from watching too much World Cup Football early in the morning which never helps).

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• Background image for list view still shows white behind text for cells.

  - by MonkeyTroy

  I wanted to put a background image partially visible behind a list view. I created a list view in my nib with an image view behind it and made the list view background 20% opacity. This allows the background image to show thru but my text in the cells show a white background behind and if I create the cells in cellForRowAtIndexPath the cells have a white background too. I am creating and setting the cell textLabel and the detailTextLabel in the cellForRowAtIndexPath event. Not sure how to get rid of that, or if there is a better way to do the background image.

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• Adding unique objects to Core Data

  - by absolut

  I'm working on an iPhone app that gets a number of objects from a database. I'd like to store these using Core Data, but I'm having problems with my relationships. A Detail contains any number of POIs (points of interest). When I fetch a set of POI's from the server, they contain a detail ID. In order to associate the POI with the Detail (by ID), my process is as follows: Query the ManagedObjectContext for the detailID. If that detail exists, add the poi to it. If it doesn't, create the detail (it has other properties that will be populated lazily). The problem with this is performance. Performing constant queries to Core Data is slow, to the point where adding a list of 150 POI's takes a minute thanks to the multiple relationships involved. In my old model, before Core Data (various NSDictionary cache objects) this process was super fast (look up a key in a dictionary, then create it if it doesn't exist) I have more relationships than just this one, but pretty much every one has to do this check (some are many to many, and they have a real problem). Does anyone have any suggestions for how I can help this? I could perform fewer queries (by searching for a number of different ID's), but I'm not sure how much this will help. Some code: POI *poi = [NSEntityDescription insertNewObjectForEntityForName:@"POI" inManagedObjectContext:[(AppDelegate*)[UIApplication sharedApplication].delegate managedObjectContext]]; poi.POIid = [attributeDict objectForKey:kAttributeID]; poi.detailId = [attributeDict objectForKey:kAttributeDetailID]; Detail *detail = [self findDetailForID:poi.POIid]; if(detail == nil) { detail = [NSEntityDescription insertNewObjectForEntityForName:@"Detail" inManagedObjectContext:[(AppDelegate*)[UIApplication sharedApplication].delegate managedObjectContext]]; detail.title = poi.POIid; detail.subtitle = @""; detail.detailType = [attributeDict objectForKey:kAttributeType]; } -(Detail*)findDetailForID:(NSString*)detailID { NSManagedObjectContext *moc = [[UIApplication sharedApplication].delegate managedObjectContext]; NSEntityDescription *entityDescription = [NSEntityDescription entityForName:@"Detail" inManagedObjectContext:moc]; NSFetchRequest *request = [[[NSFetchRequest alloc] init] autorelease]; [request setEntity:entityDescription]; NSPredicate *predicate = [NSPredicate predicateWithFormat: @"detailid == %@", detailID]; [request setPredicate:predicate]; NSLog(@"%@", [predicate description]); NSError *error; NSArray *array = [moc executeFetchRequest:request error:&error]; if (array == nil || [array count] != 1) { // Deal with error... return nil; } return [array objectAtIndex:0]; }

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• Core Plot never stops asking for data, hangs device

  - by Ben Collins

  I'm trying to set up a core plot that looks somewhat like the AAPLot example on the core-plot wiki. I have set up my plot like this: - (void)initGraph:(CPXYGraph*)graph forDays:(NSUInteger)numDays { self.cplhView.hostedLayer = graph; graph.paddingLeft = 30.0; graph.paddingTop = 20.0; graph.paddingRight = 30.0; graph.paddingBottom = 20.0; CPXYPlotSpace *plotSpace = (CPXYPlotSpace*)graph.defaultPlotSpace; plotSpace.xRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(0) length:CPDecimalFromFloat(numDays)]; plotSpace.yRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(0) length:CPDecimalFromFloat(1)]; CPLineStyle *lineStyle = [CPLineStyle lineStyle]; lineStyle.lineColor = [CPColor blackColor]; lineStyle.lineWidth = 2.0f; // Axes NSLog(@"Setting up axes"); CPXYAxisSet *xyAxisSet = (id)graph.axisSet; CPXYAxis *xAxis = xyAxisSet.xAxis; // xAxis.majorIntervalLength = CPDecimalFromFloat(7); // xAxis.minorTicksPerInterval = 7; CPXYAxis *yAxis = xyAxisSet.yAxis; // yAxis.majorIntervalLength = CPDecimalFromFloat(0.1); // Line plot with gradient fill NSLog(@"Setting up line plot"); CPScatterPlot *dataSourceLinePlot = [[[CPScatterPlot alloc] initWithFrame:graph.bounds] autorelease]; dataSourceLinePlot.identifier = @"Data Source Plot"; dataSourceLinePlot.dataLineStyle = nil; dataSourceLinePlot.dataSource = self; [graph addPlot:dataSourceLinePlot]; CPColor *areaColor = [CPColor colorWithComponentRed:1.0 green:1.0 blue:1.0 alpha:0.6]; CPGradient *areaGradient = [CPGradient gradientWithBeginningColor:areaColor endingColor:[CPColor clearColor]]; areaGradient.angle = -90.0f; CPFill *areaGradientFill = [CPFill fillWithGradient:areaGradient]; dataSourceLinePlot.areaFill = areaGradientFill; dataSourceLinePlot.areaBaseValue = CPDecimalFromString(@"320.0"); // OHLC plot NSLog(@"OHLC Plot"); CPLineStyle *whiteLineStyle = [CPLineStyle lineStyle]; whiteLineStyle.lineColor = [CPColor whiteColor]; whiteLineStyle.lineWidth = 1.0f; CPTradingRangePlot *ohlcPlot = [[[CPTradingRangePlot alloc] initWithFrame:graph.bounds] autorelease]; ohlcPlot.identifier = @"OHLC"; ohlcPlot.lineStyle = whiteLineStyle; ohlcPlot.stickLength = 2.0f; ohlcPlot.plotStyle = CPTradingRangePlotStyleOHLC; ohlcPlot.dataSource = self; NSLog(@"Data source set, adding plot"); [graph addPlot:ohlcPlot]; } And my delegate methods like this: #pragma mark - #pragma mark CPPlotdataSource Methods - (NSUInteger)numberOfRecordsForPlot:(CPPlot *)plot { NSUInteger maxCount = 0; NSLog(@"Getting number of records."); if (self.data1 && [self.data1 count] > maxCount) { maxCount = [self.data1 count]; } if (self.data2 && [self.data2 count] > maxCount) { maxCount = [self.data2 count]; } if (self.data3 && [self.data3 count] > maxCount) { maxCount = [self.data3 count]; } NSLog(@"%u records", maxCount); return maxCount; } - (NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index { NSLog(@"Getting record @ idx %u", index); return [NSNumber numberWithInt:index]; } All the code above is in the view controller for the view hosting the plot, and when initGraph is called, numDays is 30. I realize of course that this plot, if it even worked, would look nothing like the AAPLot example. The problem I'm having is that the view is never shown. It finished loading because viewDidLoad is the method that calls initGraph above, and the NSLog statements indicate that initGraph finishes. What's strange is that I return a value of 54 from numberOfRecordsForPlot, but the plot asks for more than 54 data points. in fact, it never stops asking. The NSLog statement in numberForPlot:field:recordIndex prints forever, going from 0 to 54 and then looping back around and continuing. What's going on? Why won't the plot stop asking for data and draw itself?

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• take out objects from randomizer obj c

  - by David Pollak

  hello everyone, I'm a new "developer" trying to build some iPhone app I'm making an app which gets text from a list of objects in a NSArray and then randomizes them and display one in a TextView, here's the code: - (IBAction)azione{ NSArray *myArray= [NSArray arrayWithObjects: @"Pasta",@"Pizza",@"Wait",@"Go", nil]; int length = [myArray count]; int chosen = arc4random() % length; testo.text = [myArray objectAtIndex: chosen]; } what I want to do now, is when I open the app and get a random object, to take it out from the list, so that it won't be picked again ex. I open the appI get "Pizza"Do the action againI don't get "Pizza" anymore, only "Pasta" "Wait" and "Go" What should I do ? Which code should I use ? Thanks for answers

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• How to open a document using an application launched via NSTask?

  - by zneak

  Hello world, I've grown tired of the built-in open Mac OS X command, mostly because it runs programs with your actual user ID instead of the effective user ID; this results in the fact sudo open Foo opens Foo with its associated application with your account instead of the root account, and it annoys me. So I decided to make some kind of replacement. So far I've been successful: I can open any program under the open -a or open -b fashion, and support optionally waiting. I'm using NSTask for that purpose. However, I'd like to be able to open documents too. As far as I can see, you need to use NSWorkspace for that, but using NSWorkspace to launch programs results in them being launched with your account's credentials instead of your command line program's credentials. Which is precisely what the default open tool does, and precisely what I don't want. So, how can I have a program request that another program opens a document without using NSWorkspace? From the NSTask object, I can have the process ID, but that's about it.

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• Create Custom Builds of an Xcode Project

  - by macinjosh

  I am going to build a Mac application written in Obj-C with Xcode. For argument's sake let's say it will have 10 optional features. I need a way to enable or disable those features to create custom builds of the application. These builds would be automated (most likely through the Mac OS X Terminal) so I would need a way to state which of these features are enabled/disabled at build time (a configuration file or CLI arguments would be ideal.) So what is the best way to accomplish this? I'm trying to plan this out before I start coding so that there is proper separation in my code base to allow for these features to come and go. Ideally the custom build would only contain compiled code for the features it should have. In other words I don't want to always compile all the features and condition them out at runtime.

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• I-Phone: Trying to check an Array for an item based on a string produced

  - by MB

  Hello! I'm writing a program that will concatenate a string based on letters, and then check an array to see if that string exists. If it does, then it will print a line in IB saying so. I've got all the ins-and-outs worked out, save for the fact that the simulator keeps crashing on me! Here's the code: -(IBAction)checkWord:(id)sender { NSMutableArray *wordList = [NSMutableArray arrayWithObjects:@"BIKE", @"BUS", @"BILL", nil]; if([wordList containsObject:theWord]) { NSString *dummyText = [[NSString alloc] initWithFormat:@"%@ is a real word.", theWord]; checkText.text = dummyText; [dummyText release]; } } "theWord" is the string that is being referenced against the Array to see if it matches an item contained within it. In this case "BIKE" is 'theWord'. Thank you for your help in advance! -MB

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• iPhone, Convenience Method or Alloc / Release?

  - by fuzzygoat

  Whilst developing for the iPhone I had a stubborn memory leak that I eventually tracked down to NSXMLParser. However whilst looking for that it got me thinking about maybe changing a lot of my convenience methods to alloc/release. Is there any good reason for doing that? In a large app I can see how releasing memory yourself quickly is a better idea, but in a small app is there any other difference between the two methods. NSNumber *numberToAdd = [NSNumber numberWithInt:intValue]; dostuff ... OR NSNumber *numberToAdd = [[NSNumber alloc] initWithInt:intValue]; doStuff ... [numberToAdd release]; cheers gary.

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• Appending Strings to NSMutableString

  - by Typeoneerror

  Been looking at this for a bit now and not understanding why this simple bit of code is throwing an error. Shortened for brevity: NSMutableString *output; ... @property (nonatomic, retain) NSMutableString *output; ... @synthesize output; ... // logs "output start" as expected output = [NSMutableString stringWithString:@"output start"]; NSLog(@"%@", output); ... // error happens here [output appendString:@"doing roll for player"]; Can anyone spot my mistake?

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• NSPredicate case-insensitive matching on to-many relationship

  - by Brian Webster

  I am implementing a search field where the user can type in a string to filter the items displayed in a view. Each object being displayed has a keywords to-many relationship, and I would like to be able to filter the objects based on their keywords. Each keyword object has a name property, so I've set up an NSPredicate to do the filtering that looks like this: NSPredicate* predicate = [NSPredicate predicateWithFormat:@"keywords.name CONTAINS %@", self.searchString]; This works, but the problem is that the search is case-sensitive, so if the keyword has a capital letter but the user types in all lowercase, no matches are found. I've tried the following modification: NSPredicate* predicate = [NSPredicate predicateWithFormat:@"keywords.name CONTAINS[c] %@", self.searchString]; But that doesn't make any difference in the case sensitivity of the matching. Is there a way to do this case-insensitive matching using just a plain predicate? Or will I need to implement some sort of custom accessor on the keyword class, e.g. write a lowercaseName method and match against a lowercased version of the search string instead? Addendum: After further exploration, the workaround of adding a custom accessor works OK for manual use of NSPredicate, but does not work at all when using NSFetchRequest with Core Data, which only works when querying attributes defined in the Core Data model.

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• iPad UIColor Saturation Issues

  - by Carter Allen

  I am trying to draw a UIColor on the screen of a view-based app, and I am trying to do so using HSB. It is absolutely necessary for me to use HSB in this case. I can create a UIColor object with any S value from 0.0f to 0.75f, but past that the numerical changes have no effect on the actual saturation displayed. I need it to be 1.0f, but it is still using 0.75f. Any ideas on why it is doing that, and how I can make it work?

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• How to do edit-in-place in a UITableView?

  - by cannyboy

  Is there a standard way to set up a table to allow editing-in-place, kind of like this: http://www.gtp.com.au/gtpicommerce/images/iphone4.jpg I only need editable text at the moment, but I might need UISwitches or UISliders in the future.

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• How to get NSFormatter subclass to work with NSTableColumn sort key and selector?

  - by Andrew

  My setup: I have a sqlite database from which I populate a NSMutableArray of NSDictionary objects this is the DataSource for my NSTableView. One of the columns holds "time", the time is a float that holds seconds. I would like to display the values in this column as minutes:seconds. For instance my data would be 123.4329387 I want to display 2:03 which I have no problem doing with a subclass of NSFormatter (or NSNumberFormatter) applied to my NSTextField in the column. I have sorting set up by using the Table Column Attributes in IB, I just have the sort key set to "time" and the selector set to "compare:" which works fine without the formatter. Currently this gives me something like this when I sort (descending) 1:37, 1:31, 0:10, 0:10, 0:09, 1:30, 1:30, 1:26, 0:09 and similar nonsense, it looks like something is going on but it's definitely not sorted. How do I get the sort to look at the underlying data instead of the formatted value? Alternately, how do I specify a custom sort method and where do I put the code for said method? I have searched around quite a bit and have not found anything to help me out with this problem, any help with this is most appreciated.

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• Adding Parsekit To An Xcode Project

  - by Garry

  I am trying to add the Parsekit framework to my OSX Xcode project. I've never added a 3rd party framework before and I can't get it to work right. I dragged the included Xcode project into my 'Groups & Files' pane and chose to Add it to my project. I then dragged Parsekit.framework underneath the Link Binary With Libraries heading. Then I double-clicked my target app and added Parsekit as a Direct Dependency. I also added libicucore.dylib as a Linked Library (as it says to do this on their site). Finally, in the Build settings tab of my target info I set the Header Search Paths to /Users/path/to/include/directory and the Other Linker Flags to -ObjC -all_load. Running this as a debug build work fine with no errors. However, when I build my app to release and then try to run the executable created, the app fails to load with the following error message: MyApp cannot be opened because of a problem. Check with the developer to make sure myApp works with this version of Mac OS X. Here is the dump from the crash reporter: Process: MyApp [11658] Path: /Users/Garry/Programming/Xcode/Mac/MyApp/build/Release/MyApp.app/Contents/MacOS/MyApp Identifier: com.yourcompany.MyApp Version: ??? (???) Code Type: X86-64 (Native) Parent Process: launchd [135] Date/Time: 2010-05-24 17:08:08.475 +0100 OS Version: Mac OS X 10.6.3 (10D573) Report Version: 6Interval Since Last Report: 133300 sec Crashes Since Last Report: 3 Per-App Crashes Since Last Report: 3 Anonymous UUID: DF0265E4-B5A0-45E1-8B71-D52A27CFDDCA Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Crashed Thread: 0 Dyld Error Message: Library not loaded: @executable_path/../Frameworks/ParseKit.framework/Versions/A/ParseKit Referenced from: /Users/Garry/Programming/Xcode/Mac/MyApp/build/Release/MyApp.app/Contents/MacOS/MyApp Reason: image not found Model: MacBookPro5,5, BootROM MBP55.00AC.B03, 2 processors, Intel Core 2 Duo, 2.53 GHz, 4 GB, SMC 1.47f2 Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB Memory Module: global_name AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.10.91.27) Bluetooth: Version 2.3.1f4, 2 service, 2 devices, 1 incoming serial ports Network Service: AirPort, AirPort, en1 Network Service: Ethernet Adaptor (en6), Ethernet, en6 Serial ATA Device: Hitachi HTS545025B9SA02, 232.89 GB Serial ATA Device: HL-DT-ST DVDRW GS23N USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8507, 0x24400000 USB Device: Internal Memory Card Reader, 0x05ac (Apple Inc.), 0x8403, 0x26500000 USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x04500000 USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x0237, 0x04600000 USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8213, 0x06110000 After building the app, in addition to the executable file, Xcode is also creating a file called MyApp.app.dSYM. Any idea what that is?? I am developing with Xcode 3.2.2 on an Intel MBP running 10.6.3. Many thanks for any help offered.

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• Architecting iPhone Views - seeking help on a specific issue + general advice

  - by Ev

  Hi there, I am a web developer (rails, python) that is new to iPhone development. I've done some desktop development in the past within the MS environment (C#). I'm trying to build a really simple iPhone application and I am confused by the way that views work in general. If someone can provide advice for my particular problem, along with some resources where I can learn how to architect iPhone views in the future, that would be awesome. I feel like a lot of the Apple documentation that I've come across is too specific - I am lacking a fundamental understanding of how views work on the iPhone. My particular problem looks like this: I need one view that displays some downloaded text content. This is the view that shows when the app loads, and it is pretty straightforward. Then I need a settings area (I've already decided I don't want to use the iPhone settings area). The settings area main page will have some text fields on it. It will also have a 2-row grouped table. Each cell in that table will take you to another view which also has a grouped table used for multi-select. I suspect that I can reuse the same view for these two final "detailed setting" views. In summary: home page settings main page detailed setting 1 detailed setting 2 Any help and advice appreciated.

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