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  • cannot convert 'b2PolygonShape' to 'objc_object*' in argument passing

    - by GONeale
    Hey there, I am not sure if many of you are familiar with the box2d physics engine, but I am using it within cocos2d and objective c. This more or less could be a general objective-c question though, I am performing this: NSMutableArray *allShapes = [[NSMutableArray array] retain]; b2PolygonShape shape; .. .. [allShapes addObject:shape]; and receiving this error on the addObject definition on build: cannot convert 'b2PolygonShape' to 'objc_object*' in argument passing So more or less I guess I want to know how to add a b2PolygonShape to a mutable array. b2PolygonShape appears to just be a class, not a struct or anything like that. The closest thing I could find on google to which I think could do this is described as 'encapsulating the b2PolygonShape as an NSObject and then add that to the array', but not sure the best way to do this, however I would have thought this object should add using addObject, as some of my other instantiated class objects add to arrays fine. Is this all because b2PolygonShape does not inherit NSObject at it's root? Thanks

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  • NSMutableDictionary is being treated as an NSDictionary

    - by Marc Gelfo
    Hi, I have a simple class with an NSMutableDictionary member variable. However, when I call setObject:forKey I get an error ('mutating method sent to immutable object'). The source of the problem is obvious from the debugger -- my NSMutableDictionary is actually of type NSDictionary. I must be missing something incredibly simple but can't seem to fix it. Here is the relevant code: // Model.h @interface Model : NSObject { NSMutableDictionary *piers; } @property (nonatomic,retain) NSMutableDictionary *piers; @end // Model.m @implementation Model @synthesize piers; -(id) init { if (self = [super init]) { self.piers = [[NSMutableDictionary alloc] initWithCapacity:2]; [self createModel]; } return self; } -(void) createModel { [piers setObject:@"happy" forKey:@"foobar"]; } @end If I put a breakpoint anywhere in the code and investigate self.piers, it is of type NSDictionary. What am I missing so that it is treated as an NSMutableDictionary instead? Thanks!

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  • iPhone SDK 3.0 and symbolicatecrash not getting along?

    - by Steve
    * UPDATE * I've reinstalled with Snow Leopard, clean install. Completely wiped my existing Leopard install. Same problem persists. I've tried numbers of versions of symbolicatecrash to resolve symbols in my crash reports. From the version provided by Apple, to Alan's Quatermain's version posted on GitHub and finally from http://openradar.appspot.com/6438643. For whatever reason, the best results I can get is for symbols on my own libraries to get resolved. Normally, this is enough data to point me in the right direction -- other times it is not. With 2.x I had no problems getting the symbols for my code + Apple provided libraries from within the stack traces in each thread. Most likely an issue with my environment here, I'm not at all doubting the work that Apple or Alan have done. Yes I'm certain the dSYM I have stashed away is the same exact one that's generating the crash report. Although 'Foo' is me, and getting symbols from it is wonderful, I need to see symbols from the other functions in the stack to truly understand my reports. Note: For devices that crash running the app on iPhone OS 2.2.1, I have no problem getting all symbols. This is an iPhone OS 3.0 issue it appears. Also, while running symbolicatecrash in verbose mode here's a few of the things that struck me as wrong: - NO MATCH NOT searching in Spotlight for dsym with UUID of /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation ## Warning: Can't find any unstripped binary that matches version of /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation ..........fetching symbol file for libobjc.A.dylib--[undef] Searching [/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0 (5A345)/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0 (5A347)/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0.1 (5B108)/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0.2 (5C1)/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.1.1/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.1/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.2.1/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.2/Symbols/usr/lib/libobjc.A.dylib /Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0 (7A341)/Symbols/usr/lib/libobjc.A.dylib]...--[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0 (5A345)/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0 (5A347)/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0.1 (5B108)/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.0.2 (5C1)/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.1.1/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.1/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.2.1/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/2.2/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH --[/Developer/Platforms/iPhoneOS.platform/DeviceSupport/3.0 (7A341)/Symbols/usr/lib/libobjc.A.dylib] -- NO MATCH NOT searching in Spotlight for dsym with UUID of /usr/lib/libobjc.A.dylib ## Warning: Can't find any unstripped binary that matches version of /usr/lib/libobjc.A.dylib Here's an example of the crash report after running it through symbolicatecrash: Thread 0 Crashed: 0 libSystem.B.dylib 0x31dc476c 0x31d46000 + 517996 1 libSystem.B.dylib 0x31dc4755 0x31d46000 + 517973 2 Foo 0x00053075 uncaught_exception_handler + 21 3 CoreFoundation 0x3028f65f 0x301fd000 + 599647 4 libobjc.A.dylib 0x30013693 0x3000c000 + 30355 5 libstdc++.6.dylib 0x374ccc2d 0x3748a000 + 273453 6 libstdc++.6.dylib 0x374ccc81 0x3748a000 + 273537 7 libstdc++.6.dylib 0x374ccd4d 0x3748a000 + 273741 8 libobjc.A.dylib 0x300135ff 0x3000c000 + 30207 9 CoreFoundation 0x30222f2d 0x301fd000 + 155437 10 CoreFoundation 0x30222ecb 0x301fd000 + 155339 11 Foundation 0x30521e33 0x30501000 + 134707 12 Foundation 0x30570d47 0x30501000 + 458055 13 Foo 0x0000a1db -[Bar barfoo] (Bar.m:1617) 14 Foo 0x00032f73 -[MyViewController foobar] (MyViewController.m:727) 15 Foo 0x000329b9 -[MyViewController foobar] (MyViewController.m:666) 16 Foo 0x00031fab -[MyViewController tabBar:tabSelected:] (MyViewController.m:440) 17 Foo 0x00068d41 -[TTTabBar setSelectedTabIndex:] (TTTabBar.m:160) 18 Foo 0x00068ca3 -[TTTabBar setSelectedTabView:] (TTTabBar.m:142) 19 Foo 0x000689cf -[TTTabBar tabTouchedUp:] (TTTabBar.m:83) 20 CoreFoundation 0x302552f9 0x301fd000 + 361209 21 UIKit 0x3094d101 0x308ed000 + 393473 22 UIKit 0x3094d0a1 0x308ed000 + 393377 23 UIKit 0x3094d073 0x308ed000 + 393331 24 UIKit 0x3094cdcd 0x308ed000 + 392653 25 UIKit 0x309779c1 0x308ed000 + 567745 26 UIKit 0x30977011 0x308ed000 + 565265 27 UIKit 0x309767d9 0x308ed000 + 563161 28 UIKit 0x30923613 0x308ed000 + 222739 29 UIKit 0x30923163 0x308ed000 + 221539 30 GraphicsServices 0x32045a4d 0x32041000 + 19021 31 CoreFoundation 0x30253041 0x301fd000 + 352321 32 CoreFoundation 0x30252771 0x301fd000 + 350065 33 GraphicsServices 0x32044b0f 0x32041000 + 15119 34 GraphicsServices 0x32044bbb 0x32041000 + 15291 35 UIKit 0x308f0363 0x308ed000 + 13155 36 UIKit 0x308ef121 0x308ed000 + 8481 37 Foo 0x00002097 main (main.m:13)

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  • Does iPhone support "greying out" inactive controls?

    - by iter
    I have a control that goes inactive under some conditions in my iPhone app. I can [setUserInteractionEnabled: NO] on it and it doesn't respond to touches. Its appearance does not change however. Other environments I am familiar with "grey out" inactive controls. I wonder what is the idiomatic way to hint to the user that the control is inactive.

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  • NSCollectionView subclass doesn't call drawRect during drag session despite setNeedsDisplay

    - by Alain Vitry
    Greetings, I am puzzled as to how and when drawRect is supposed to be called in a NSCollectionView subclass. I implement drag and drop operation in order to move NSCollectionViewItems within the collection, and would like to draw a visual indication of where the drop would end. The subclass does not call drawRect during the drag session. (It does during scroll) Is this the intended operation ? Any hint on how to implement this behavior properly are welcome. A full xcode project of the following code is available at: http://babouk.ovh.org/dload/MyCollectionView.zip Best regards Code sample: @interface CollectionViewAppDelegate : NSObject <NSApplicationDelegate> { NSWindow *window; NSMutableArray *collectionContent; } /* properties declaration */ /* KVC compliance declarations */ @end @interface MyCollectionView : NSCollectionView @end @interface ItemModel { NSString *name; } @property (copy) NSString *name; @end @implementation MyCollectionView - (void)drawRect:(NSRect)rect { NSLog(@"DrawRect"); } - (void)mouseDragged:(NSEvent *)aEvent { NSPoint localPoint = [self convertPoint:[aEvent locationInWindow] fromView:nil]; [self dragImage:[NSImage imageNamed:@"Move.png"] at:localPoint offset:NSZeroSize event:aEvent pasteboard:nil source:self slideBack:NO]; } - (BOOL)prepareForDragOperation:(id < NSDraggingInfo >)sender { return YES; } - (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)sender { return NSDragOperationEvery; } - (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)sender { [self setNeedsDisplay:YES]; return NSDragOperationEvery; } - (NSDragOperation)draggingSourceOperationMaskForLocal:(BOOL)isLocal { return NSDragOperationEvery; } - (void)mouseDown:(NSEvent *)theEvent { } @end @implementation CollectionViewAppDelegate @synthesize window, collectionContent, collectionView; - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { NSMutableArray *data = [[NSMutableArray alloc] init]; /* Fill in data */ [self setCollectionContent:data]; [data release]; } /* dealloc */ /* KVC implementation */ @end @implementation ItemModel @synthesize name; /* dealloc */ @end

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  • using objc_msgSend to call a Objective C function with named arguments

    - by Markus Pilman
    Hi all, I want to add scripting support for an Objective-C project using the objc runtime. Now I face the problem, that I don't have a clue, how I should call an Objective-C method which takes several named arguments. So for example the following objective-c call [object foo:bar]; could be called from C with: objc_msgSend(object, sel_getUid("foo:"), bar); But how would I do something similar for the method call: [object foo:var bar:var2 err:errVar]; ?? Best Markus

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  • UIToolbar above UIWebView inside UIScrollView

    - by Nick VanderPyle
    I'd like to display a toolbar above a UIWebView but hide the toolbar until the person "pulls it down". The same functionality can be seen in Safari on the iPhone. When the page loads, the toolbar containing the address is hidden. You must pull it down. In Safari it's possible to scroll up and eventually see the toolbar or scroll down through the page contents. I've tried placing a UIToolbar and UIWebView inside a UIScrollView but it didn't work. I've tried setting the UIScrollView to the size of the toolbar and webview combined, but that didn't work. - (void)viewDidLoad{ CGSize size = CGSizeMake(webView.frame.size.width, toolBar.frame.size.height + webView.frame.size.height); [scrollView setContentSize:size]; } How should I go about doing this?

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  • iPhone SDK: Transparent tableviewcell isn't transparent?

    - by Harkonian
    I have a UITableViewController that has a background image. I am setting the image for the tableview like this: [self.view setBackgroundColor: [UIColor colorWithPatternImage: [UIImage imageWithContentsOfFile: [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent: @"background1.jpg"]]]]; The problem is, each of my custom tableview cells get the same background image--it's repeated in each cell. As a test, I tried making everything in my cell transparent with an alpha of 0.0, but even then although I can't see any of the labels in each cell, I still see the background image repeated in each cell: cell.backgroundColor = [UIColor clearColor]; cell.contentView.backgroundColor = [UIColor clearColor]; cell.contentView.alpha = 0.0; cell.alpha = 0.0; Any suggestions on how to get my table's background image to stop repeating in each cell would be appreciated!

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  • UiPickerView change font color according data

    - by Fulkron
    I'm using a pickerView with multiple components related to several fields in a Database (CoreData). Is it possible to change the fontcolor for a specific component according the presence of data in the DB ? For example the field in the DB is null the component font color should be RED otherwise black. Any help will be appreciated ! Dario ================== Thanks Kenny, I have to apply to a single UIPicker only. So I', returning the view parametere (without modificatiosn). The result is all the pickers show empty rows. Thanks for help ! Here you will find the code fragment: - (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view { if (pickerView == tipoPk){ UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100,30)]; label.textColor = [UIColor redColor]; switch (component) { case PK_Tipo: label.text = [tipoArray objectAtIndex:row]]; break; case PK_Settore: label.text = [settoreArray objectAtIndex:row]]; break; default: break; } return label; } else { return view; // <==== return view for non related pickerviews , but no rows shown } }

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  • Access denied error when building project in Xcode after fresh SVN checkout

    - by TheLearner
    I am seeing 2 strange access denied errors which I cant solve. This error occurs when a colleague checks out the project in SVN and it tries to find a file in my downloads folder - there is nothing in my download folder though: ProcessPCH /var/folders/f0/f01B78egHdyWY62v5MABJk+++TM/-Caches-/com.apple.Xcode.502/SharedPrecompiledHeaders/SplitView_Prefix-allviomrzhantlbahmhixtzhknpl/SplitView_Prefix.pch.gch SplitView_Prefix.pch normal armv7 objective-c com.apple.compilers.gcc.4_2 cd /SubVersion/SplitView/trunk/SplitView setenv LANG en_US.US-ASCII setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -x objective-c-header -arch armv7 -fmessage-length=0 -pipe -std=c99 -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wunused-variable -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -fvisibility=hidden -gdwarf-2 -mno-thumb -miphoneos-version-min=4.2 -iquote /SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-generated-files.hmap -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-own-target-headers.hmap -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-all-target-headers.hmap -iquote /SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-project-headers.hmap -Wno-write-strings -F/SubVersion/SplitView/trunk/SplitView/build/Debug-iphoneos -F/SubVersion/SplitView/trunk/SplitView -F/Users//Downloads -I/SubVersion/SplitView/trunk/SplitView/build/Debug-iphoneos/include -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/DerivedSources/armv7 -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/DerivedSources -fno-regmove -falign-loops=16 -fvisibility=default -c /SubVersion/SplitView/trunk/SplitView/SplitView_Prefix.pch -o /var/folders/f0/f01B78egHdyWY62v5MABJk+++TM/-Caches-/com.apple.Xcode.502/SharedPrecompiledHeaders/SplitView_Prefix-allviomrzhantlbahmhixtzhknpl/SplitView_Prefix.pch.gch cc1objplus: error: /Users//Downloads: Permission denied ProcessPCH++ /var/folders/f0/f01B78egHdyWY62v5MABJk+++TM/-Caches-/com.apple.Xcode.502/SharedPrecompiledHeaders/SplitView_Prefix-fdhrznnmptbkzefjexcjfecmqxmq/SplitView_Prefix.pch.gch SplitView_Prefix.pch normal armv7 objective-c++ com.apple.compilers.gcc.4_2 cd /SubVersion/SplitView/trunk/SplitView setenv LANG en_US.US-ASCII setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -x objective-c++-header -arch armv7 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -O0 -Wreturn-type -Wunused-variable -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -fvisibility=hidden -fvisibility-inlines-hidden -gdwarf-2 -mno-thumb -miphoneos-version-min=4.2 -iquote /SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-generated-files.hmap -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-own-target-headers.hmap -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-all-target-headers.hmap -iquote /SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/SplitView-project-headers.hmap -Wno-write-strings -F/SubVersion/SplitView/trunk/SplitView/build/Debug-iphoneos -F/SubVersion/SplitView/trunk/SplitView -F/Users//Downloads -I/SubVersion/SplitView/trunk/SplitView/build/Debug-iphoneos/include -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/DerivedSources/armv7 -I/SubVersion/SplitView/trunk/SplitView/build/SplitView.build/Debug-iphoneos/Renovatio.build/DerivedSources -c /SubVersion/SplitView/trunk/SplitView/SplitView_Prefix.pch -o /var/folders/f0/f01B78egHdyWY62v5MABJk+++TM/-Caches-/com.apple.Xcode.502/SharedPrecompiledHeaders/SplitView_Prefix-fdhrznnmptbkzefjexcjfecmqxmq/SplitView_Prefix.pch.gch cc1objplus: error: /Users//Downloads: Permission denied

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  • Suggestion for dragster/dropzone like dock menu

    - by Ger Teunis
    I'd like to create a dragster/dropzone like dock menu. Looks a bit like a stack with a nsview in it. After a lot if documentation searching and googling I've found a way to determine a dock icon's location. (http://cocoadev.com/forums/comments.php?DiscussionID=1431) Is nzbdrop creating a view which just looks like an stack to display it's menu or is there a better way of creating this? Additional info: I'm not looking for the drop like functionality just the nice way the DropBox window is displayed as an bubble/stack menu on top of it's app icon.

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  • Changing UIImageView animation speed

    - by Nikolas Stephan
    I am using the UIImageView to animate a bunch of images. I know that I can change the speed by altering animationDuration, but that doesn't seem to take effect until the animation is restarted. My problem is that beside not really wanting to have to restart the animation as this limits me to only being able to change the speed once per cycle, there also doesn't seem to be a way to find out what frame is currently being shown and I would therefore have to rely on a timer to "guess" which one it is. So my question is whether there is a way to change the speed without restarting the animation and if not is there some way I could avoid the aforementioned problem? I'm not too keen to write my own animation class, but may end up having to if there isn't a nicer solution.

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  • Difference of 2 NSArray's for animated insert/delete in UITableView

    - by Alexander Cohen
    At some point in my Application, I have an NSArray whose contents change. Those contents are shown in a UITableView. I'm trying to find a way to find the diff between the contents of before and after of the NSArray so i can pass the correct indexPaths to insertRowsAtIndexPaths:withRowAnimation: and deleteRowsAtIndexPaths:withRowAnimation: in order to have the changes nicely animated. Any ideas? thx

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  • UIWebView leak? Can someone confirm?

    - by Shaggy Frog
    I was leak-testing my current project and I'm stumped. I've been browsing like crazy and tried everything except chicken sacrifice. I just created a tiny toy project app from scratch and I can duplicate the leak in there. So either UIWebView has a leak or I'm doing something really silly. Essentially, it boils down to a loadRequest: call to a UIWebView object, given an URLRequest built from an NSURL which references a file URL, for a file in the app bundle, which lives inside a folder that Xcode is including by reference. Phew. The leak is intermittent but still happens ~75% of the time (in about 20 tests it happened about 15 times). It only happens on the device -- this does not leak in the simulator. I am testing targeting both iPhone OS 3.1.2 and 3.1.3, on an original (1st Gen) iPod Touch that is using iPhone OS 3.1.3. To reproduce, just create a project from scratch. Add a UIWebView to the RootViewController's .xib, hook it up via IBOutlet. In the Finder, create a folder named "html" inside your project's folder. Inside that folder, create a file named "dummy.html" that has the word "Test" in it. (Does not need to be valid HTML.) Then add the html folder to your project in Xcode by choosing "Create Folder References for any added folders" Add the following to viewDidLoad NSString* resourcePath = [[NSBundle mainBundle] resourcePath]; NSString* filePath = [[resourcePath stringByAppendingPathComponent:@"html"] stringByAppendingPathComponent:@"dummy.html"]; NSURL* url = [[NSURL alloc] initFileURLWithPath:filePath]; NSURLRequest* request = [NSURLRequest requestWithURL:url]; // <-- this creates the leak! [browserView loadRequest:request]; [url release]; I've tried everything from setting delegate for the UIWebView and implementing UIWebViewDelegate, to not setting a delegate in IB, to not setting a delegate in IB and explicitly setting the web view's delegate property to nil, to using alloc/init instead of getting autoreleased NSURLRequests (and/or NSURLs)... I tried the answer to a similar question (setting the shared URL cache to empty) and that did not help. Can anyone help?

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  • Building a list of favorites from Core Data

    - by Jim
    I'm building an app with two tabs. The first tab has a main tableview that connects to a detail view of the row. The second tab will display a tableView based on the user adding content to it by tapping a button on the detail view. My question is this. What is the correct design pattern to do this? Do I create a second ManagedObjectContext/ManagedObjectContextID then save that context to a new persistent store or can the MOC be saved to the existing store without affecting the original tableview? I've looked at CoreData Recipes and CoreData Books and neither deal with multiple stores although books does deal with multiple MOC's. Any reference would be great.

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  • Shake based application

    - by Sid
    hii frnz, i am developing an application which deletes rows from a table view when the user shakes the iPhone.i have created a navigation based project. now when the user shakes the iPhone i want that the title of navigation bar should change to "DELETE" and a delete button should appear on the navigation bar on the same view (but this operation should take place only when the user shakes the iPhone )otherwise when a user selects a particular row then it should move to next view.I have written the followin code but its not working.plz help me out..... (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { //NSLog(@"hiiiii"); if (isShaked == NO) { //logic to move to next view goes here. } else { self.title = @"Delete Rows"; delete=[[UIBarButtonItem alloc] initWithTitle:@"Delete rows" style: UIBarButtonItemStyleBordered target:self action:@selector(deleteItemsSelected)] ; self.navigationItem.rightBarButtonItem=self.delete; MyTableCell *targetCustomCell = (MyTableCell *)[tableView cellForRowAtIndexPath:indexPath]; [targetCustomCell checkAction]; [self.tempArray addObject: [myModal.listOfStates objectAtIndex:indexPath.row]]; //[delete addTarget:self action:@selector(deleteItemsSelected:) forControlEvents:UIControlEventTouchUpInside]; self.tempTableView = tableView; } } -(void)deleteItemsSelected { //for(int i = 0; i <= [tempArray count]; i++) //{ //} [myModal.listOfStates removeObjectsInArray:tempArray]; [tempTableView reloadData]; } checkAction method is a custom cell method which is used to put a tickmark on the row selected

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  • iPhone UISlider with two thumbs/indicators?

    - by ChrisW
    Is anyone aware of a version of the iPhone UISlider control with two thumbs? I need a control that will allow specifying a range of values. The UISlider API docs would imply this isn't possible with the standard control, so I was wondering if anyone had a solution for this (or had solved it themselves).

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  • Rotate a CALayer when it reaches a certain position

    - by jbrennan
    I've got a CALayer with two CAKeyframeAnimations added to it. One is for @"transform" and the other is for @"position". I am rotating the layer and translating it with these two animations. I am wondering, is there a way I can set the keyframes to happen at the same time? I want to have a keyframe for rotation at the exact time my layer has reached a certain (x, y) position. How is this possible?

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  • Using NSNumberFormatter to get a decimal value from an international currency string

    - by Duncan A
    It seems that the NSNumberFormatter can't parse Euro (and probably other) currency strings into a numerical type. Can someone please prove me wrong. I'm attempting to use the following to get a numeric amount from a currency string: NSNumberFormatter *currencyFormatter = [[[NSNumberFormatter alloc] init] autorelease]; [currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; NSNumber *currencyNumber = [currencyFormatter numberFromString:currencyString]; This works fine for UK and US currency amounts. It even deals with $ and £ and thousands separators with no problems. However, when I use it with euro currency amounts (with the Region Format set to France or Germany in the settings app) it returns an empty string. All of the following strings fail: 12,34 € 12,34 12.345,67 € 12.345,67 It's worth noting that these strings match exactly what comes out of the NSNumberFormatter's stringFromNumber method when using the corresponding locale. Setting the Region Format to France in the settings app, then setting currencyNumber to 12.34 in the following code, results in currencyString being set to '12,34 €' : NSNumberFormatter *currencyFormatter = [[[NSNumberFormatter alloc] init] autorelease]; [currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; NSString *currencyString = [currencyFormatter stringFromNumber:currencyNumber]; It would obviously be fairly easy to hack around this problem specifically for the Euro but I'm hoping to sell this app in as many countries as possible and I'm thinking that a similar situation is bound to occur with other locales. Does anyone have an answer? TIA, Duncan

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  • EXC_BAD_INSTRUCTION (SIGILL) at random during use of app. Bug in AppKit?

    - by Ger Teunis
    I'm currently testing a new version of an app of mine on OSX 10.5 An user reported some weird crashes during use of the application, sadly not reproducible by me. At first sight it seems to happen randomly, once he had the crash while opening an NSOpenPanel and once during focusing an NSTextField and once during NSView switch in a parent view. If you have any idea which area I should look at it would be greatly appreciated! I'm completely lost here. App is compiled in XCode 3.2.1 with SDK 10.5 and targetted at 10.5 He send me these crashes: Crash 1 Process: NZBVortex [43622] Path: /Users/cero/Downloads/NZBVortex.app/Contents/MacOS/NZBVortex Identifier: com.NZBVortex.NZBVortex Version: 0.5.5 (0.5.5) Code Type: X86-64 (Native) Parent Process: launchd [97] Interval Since Last Report: 1951 sec Crashes Since Last Report: 1 Per-App Interval Since Last Report: 1858 sec Per-App Crashes Since Last Report: 1 Date/Time: 2010-03-23 23:43:49.671 +0100 OS Version: Mac OS X 10.5.8 (9L31a) Report Version: 6 Anonymous UUID: 98AB0386-590B-4E0D-B7AC-3F7AA4E7238E Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x0000000000000001, 0x0000000000000000 Crashed Thread: 0 Application Specific Information: objc[43622]: alt handlers in objc runtime are buggy! - Hide quoted text - Thread 0 Crashed: 0 libobjc.A.dylib 0x00007fff82baef6e _objc_fatal + 238 1 libobjc.A.dylib 0x00007fff82bb2ea4 objc_addExceptionHandler + 302 2 com.apple.CoreFoundation 0x00007fff842b1090 _CFDoExceptionOperation + 528 3 com.apple.AppKit 0x00007fff81f75e26 _NSAppKitLock + 81 4 com.apple.AppKit 0x00007fff81f80f8f -[NSView nextKeyView] + 56 5 com.apple.AppKit 0x00007fff81f81018 -[NSView _primitiveSetNextKeyView:] + 72 6 com.apple.AppKit 0x00007fff820732b1 -[NSView _recursiveSetDefaultKeyViewLoop] + 242 7 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 8 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 9 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 10 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 11 com.apple.AppKit 0x00007fff82072fc3 -[NSView _setDefaultKeyViewLoop] + 279 12 com.apple.AppKit 0x00007fff82072e70 -[NSWindow recalculateKeyViewLoop] + 36 13 com.apple.AppKit 0x00007fff821dd149 -[NSSavePanel(NSSavePanelRuntime) _loadPreviousModeAndLayout] + 39 14 com.apple.AppKit 0x00007fff821dcf9e -[NSSavePanel(NSSavePanelRuntime) runModalForDirectory:file:types:] + 71 15 com.NZBVortex.NZBVortex 0x000000010000b7ee -[MainWindowViewController openNZBFileButtonClick:] + 62 16 com.apple.AppKit 0x00007fff821c96bf -[NSToolbarButton sendAction:to:] + 77 17 com.apple.AppKit 0x00007fff821c8bb7 -[NSToolbarItemViewer mouseDown:] + 5362 18 com.apple.AppKit 0x00007fff82082783 -[NSWindow sendEvent:] + 5068 19 com.apple.AppKit 0x00007fff8204fd46 -[NSApplication sendEvent:] + 5089 20 com.apple.AppKit 0x00007fff81faa562 -[NSApplication run] + 497 21 com.apple.AppKit 0x00007fff81f772f0 NSApplicationMain + 373 22 com.NZBVortex.NZBVortex 0x0000000100012a69 main + 9 23 com.NZBVortex.NZBVortex 0x0000000100001a84 start + 52 Crash 2 Process: NZBVortex [43600] Path: /Users/cero/Downloads/NZBVortex.app/Contents/MacOS/NZBVortex Identifier: com.NZBVortex.NZBVortex Version: 0.5.5 (0.5.5) Code Type: X86-64 (Native) Parent Process: launchd [97] Interval Since Last Report: 727 sec Crashes Since Last Report: 1 Per-App Interval Since Last Report: 616 sec Per-App Crashes Since Last Report: 1 Date/Time: 2010-03-23 23:11:20.000 +0100 OS Version: Mac OS X 10.5.8 (9L31a) Report Version: 6 Anonymous UUID: 98AB0386-590B-4E0D-B7AC-3F7AA4E7238E Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x0000000000000001, 0x0000000000000000 Crashed Thread: 0 Application Specific Information: objc[43600]: alt handlers in objc runtime are buggy! Thread 0 Crashed: 0 libobjc.A.dylib 0x00007fff82baef6e _objc_fatal + 238 1 libobjc.A.dylib 0x00007fff82bb2ea4 objc_addExceptionHandler + 302 2 com.apple.CoreFoundation 0x00007fff842b1090 _CFDoExceptionOperation + 528 3 com.apple.AppKit 0x00007fff81f75e26 _NSAppKitLock + 81 4 com.apple.AppKit 0x00007fff81f80f8f -[NSView nextKeyView] + 56 5 com.apple.AppKit 0x00007fff81f81018 -[NSView _primitiveSetNextKeyView:] + 72 6 com.apple.AppKit 0x00007fff820732b1 -[NSView _recursiveSetDefaultKeyViewLoop] + 242 7 com.apple.AppKit 0x00007fff82156700 -[NSTabView _recursiveSetDefaultKeyViewLoop] + 119 8 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 9 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 10 com.apple.AppKit 0x00007fff82072fc3 -[NSView _setDefaultKeyViewLoop] + 279 11 com.apple.AppKit 0x00007fff82072e70 -[NSWindow recalculateKeyViewLoop] + 36 12 com.NZBVortex.NZBVortex 0x000000010000b527 -[MainWindowViewController showView:sender:] + 1639 13 com.NZBVortex.NZBVortex 0x000000010000ae6b -[MainWindowViewController preferencesSaveAlertDidEnd:returnCode:contextInfo:] + 91 14 com.apple.AppKit 0x00007fff82224291 -[NSAlert didEndAlert:returnCode:contextInfo:] + 107 15 com.apple.AppKit 0x00007fff82224197 -[NSAlert buttonPressed:] + 279 16 com.apple.AppKit 0x00007fff82085d46 -[NSApplication sendAction:to:from:] + 97 17 com.apple.AppKit 0x00007fff82085c7f -[NSControl sendAction:to:] + 97 18 com.apple.AppKit 0x00007fff820851b0 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 1841 19 com.apple.AppKit 0x00007fff820849d6 -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 611 20 com.apple.AppKit 0x00007fff8208422f -[NSControl mouseDown:] + 735 21 com.apple.AppKit 0x00007fff82082783 -[NSWindow sendEvent:] + 5068 22 com.apple.AppKit 0x00007fff8204fd46 -[NSApplication sendEvent:] + 5089 23 com.apple.AppKit 0x00007fff81faa562 -[NSApplication run] + 497 24 com.apple.AppKit 0x00007fff81f772f0 NSApplicationMain + 373 25 com.NZBVortex.NZBVortex 0x0000000100012a69 main + 9 26 com.NZBVortex.NZBVortex 0x0000000100001a84 start + 52 Crash 3 Process: NZBVortex [43520] Path: /Users/cero/Downloads/NZBVortex.app/Contents/MacOS/NZBVortex Identifier: com.NZBVortex.NZBVortex Version: 0.5.5 (0.5.5) Code Type: X86-64 (Native) Parent Process: launchd [97] Interval Since Last Report: 23487 sec Crashes Since Last Report: 2 Per-App Interval Since Last Report: 2025 sec Per-App Crashes Since Last Report: 1 Date/Time: 2010-03-23 22:59:05.484 +0100 OS Version: Mac OS X 10.5.8 (9L31a) Report Version: 6 Anonymous UUID: 98AB0386-590B-4E0D-B7AC-3F7AA4E7238E Exception Type: EXC_BAD_INSTRUCTION (SIGILL) Exception Codes: 0x0000000000000001, 0x0000000000000000 Crashed Thread: 0 Application Specific Information: objc[43520]: alt handlers in objc runtime are buggy! Thread 0 Crashed: 0 libobjc.A.dylib 0x00007fff82baef6e _objc_fatal + 238 1 libobjc.A.dylib 0x00007fff82bb2ea4 objc_addExceptionHandler + 302 2 com.apple.CoreFoundation 0x00007fff842b1090 _CFDoExceptionOperation + 528 3 com.apple.AppKit 0x00007fff81f75e26 _NSAppKitLock + 81 4 com.apple.AppKit 0x00007fff81f80f8f -[NSView nextKeyView] + 56 5 com.apple.AppKit 0x00007fff81f81018 -[NSView _primitiveSetNextKeyView:] + 72 6 com.apple.AppKit 0x00007fff820732b1 -[NSView _recursiveSetDefaultKeyViewLoop] + 242 7 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 8 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 9 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 10 com.apple.AppKit 0x00007fff82073300 -[NSView _recursiveSetDefaultKeyViewLoop] + 321 11 com.apple.AppKit 0x00007fff82072fc3 -[NSView _setDefaultKeyViewLoop] + 279 12 com.apple.AppKit 0x00007fff82072e70 -[NSWindow recalculateKeyViewLoop] + 36 13 com.apple.AppKit 0x00007fff821dd149 -[NSSavePanel(NSSavePanelRuntime) _loadPreviousModeAndLayout] + 39 14 com.apple.AppKit 0x00007fff821dcf9e -[NSSavePanel(NSSavePanelRuntime) runModalForDirectory:file:types:] + 71 15 com.NZBVortex.NZBVortex 0x000000010000b7ee -[MainWindowViewController openNZBFileButtonClick:] + 62 16 com.apple.AppKit 0x00007fff821c96bf -[NSToolbarButton sendAction:to:] + 77 17 com.apple.AppKit 0x00007fff821c8bb7 -[NSToolbarItemViewer mouseDown:] + 5362 18 com.apple.AppKit 0x00007fff82082783 -[NSWindow sendEvent:] + 5068 19 com.apple.AppKit 0x00007fff8204fd46 -[NSApplication sendEvent:] + 5089 20 com.apple.AppKit 0x00007fff81faa562 -[NSApplication run] + 497 21 com.apple.AppKit 0x00007fff81f772f0 NSApplicationMain + 373 22 com.NZBVortex.NZBVortex 0x0000000100012a69 main + 9 23 com.NZBVortex.NZBVortex 0x0000000100001a84 start + 52

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  • How do I keep music playing after the user presses the hold button on the iPhone?

    - by Carlos Vargas
    Hey guys how can I make an app keep playing an mp3 after pressed the hold/power button. Here is the code I use for preparing the AVAudioPlayer: - (void)PrepareAudio:(int)index { NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"%@",[_Audio objectAtIndex:Game]] ofType:@"mp3"]; NSURL *newURL = [[NSURL alloc] initFileURLWithPath: soundFilePath]; MusicPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL: newURL error: nil]; [newURL release]; [MusicPlayer setVolume: 1.5]; } And this is the code when I press the button play: - (IBAction)PushPlay: (id)sender { if(!MusicPlayer.playing) [MusicPlayer play]; } Best Regards Carlos Vargas

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  • MKMapView loading all annotation views at once (including those that are outside the current rect)

    - by jmans
    Has anyone else run into this problem? Here's the code: - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(WWMapAnnotation *)annotation { // Only return an Annotation view for the placemarks. Ignore for the current location--the iPhone SDK will place a blue ball there. NSLog(@"Request for annotation view"); if ([annotation isKindOfClass:[WWMapAnnotation class]]){ MKPinAnnotationView *browse_map_annot_view = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"BrowseMapAnnot"]; if (!browse_map_annot_view) { browse_map_annot_view = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"BrowseMapAnnot"] autorelease]; NSLog(@"Creating new annotation view"); } else { NSLog(@"Recycling annotation view"); browse_map_annot_view.annotation = annotation; } ... As soon as the view is displayed, I get 2009-08-05 13:12:03.332 xxx[24308:20b] Request for annotation view 2009-08-05 13:12:03.333 xxx[24308:20b] Creating new annotation view 2009-08-05 13:12:03.333 xxx[24308:20b] Request for annotation view 2009-08-05 13:12:03.333 xxx[24308:20b] Creating new annotation view and on and on, for every annotation (~60) I've added. The map (correctly) only displays the two annotations in the current rect. I am setting the region in viewDidLoad: if (center_point.latitude == 0) { center_point.latitude = 35.785098; center_point.longitude = -78.669899; } if (map_span.latitudeDelta == 0) { map_span.latitudeDelta = .001; map_span.longitudeDelta = .001; } map_region.center = center_point; map_region.span = map_span; NSLog(@"Setting initial map center and region"); [browse_map_view setRegion:map_region animated:NO]; The log entry for the region being set is printed to the console before any annotation views are requested. The problem here is that since all of the annotations are being requested at once, [mapView dequeueReusableAnnotationViewWithIdentifier] does nothing, since there are unique MKAnnotationViews for every annotation on the map. This is leading to memory problems for me. One possible issue is that these annotations are clustered in a pretty small space (~1 mile radius). Although the map is zoomed in pretty tight in viewDidLoad (latitude and longitude delta .001), it still loads all of the annotation views at once. Thanks...

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  • Create hyperlink to some text in NSTextView

    - by regulus6633
    I can create a hyperlink to some url in an NSTextView using the "Link Panel". Or I can add a link manually using the NSLinkAttributeName attribute of NSAttributedString. I don't want to make a hyperlink to some external url though, I want to be able to create a hyperlink to some text within the NSTextView. Do you know how in Pages you can set some text as a Bookmark, and then you can make a hyperlink to that bookmark? Any ideas or examples of how to go about that?

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