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  • How to quickly search an array of objects in Objective-C

    - by randombits
    Is there a way in Objective-C to search an array of objects by the contained object's properties if the properties are of type string? For instance, I have an NSArray of Person objects. Person has two properties, NSString *firstName and NSString *lastName. What's the best way to search through the array to find everyone who matches 'Ken' anywhere in the firstName OR lastName properties?

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  • Undefined symbols for architecture armv7 using route-me

    - by Alex
    I'm trying to compile my project including route-me using armv7 although am struggling with the following error, i have older versions of the same project in git which compiles fine with armv7 so a setting must have changed somewhere to break it, here is the error: Undefined symbols for architecture armv7: "_pj_fwd", referenced from: -[RMProjection latLongToPoint:] in libMapView.a(RMProjection.o) "_pj_inv", referenced from: -[RMProjection pointToLatLong:] in libMapView.a(RMProjection.o) "_pj_init_plus", referenced from: -[RMProjection initWithString:InBounds:] in libMapView.a(RMProjection.o) "_pj_free", referenced from: -[RMProjection dealloc] in libMapView.a(RMProjection.o) ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) Any help would be greatly appreciated.

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  • Need help with animation on iPhone

    - by Arun Ravindran
    I'm working on an animated clock application for the iPhone, and I have to pivot all the 3 nodes in the view, which I have obtained in the following code: [CATransaction begin]; [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions]; clockarm.layer.anchorPoint = CGPointMake(0.0, 0.0); [CATransaction commit]; [CATransaction begin]; [CATransaction setValue:(id)kCFBooleanFalse forKey:kCATransactionDisableActions]; [CATransaction setValue:[NSNumber numberWithFloat:50.0] forKey:kCATransactionAnimationDuration]; CABasicAnimation *animation; animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"]; animation.fromValue = [NSNumber numberWithFloat:-60.0]; animation.toValue = [NSNumber numberWithFloat:2 * M_PI]; animation.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionLinear]; animation.delegate = self; [clockarm.layer addAnimation:animation forKey:@"rotationAnimation"]; animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; [CATransaction commit]; The problem it's just rotating once, ie. only 360 degree and then stopping. I want to raotate the needles indefinitely. How would I do that?

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  • iPhone app: How to implement in-app purchased game levels

    - by Wonderflonium
    So, I understand that it's possible to set up in-app purchases for iPhone apps to purchase non-consumables like game levels. I understand the logic behind the purchase part, but what I don't understand is, how can I deliver the new game level. For example: I build an app that contains the first level and they purchase additional levels. Is it better to build all the other levels into the app and whenever they purchase the app, it unlocks it with a plist entry or something? That doesn't seem very update-able to me. Every time I come up with a new level, I'd have to update the app. So, what I don't understand then, is what is how do I package up a level and download it as a separate entity that can accessed by the game? Would the level just be some XML with images in a ZIP folder or something? How does the level get added to the game? What are best practices for this type of thing? I Googled and have found NOTHING about this. I'm a little bit confused by the concept and any help would be appreciated. I'm not looking for someone to write the game for me, I just need pointed in the right direction so I can develop it on my own.

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  • Image "moves" when varying heightForRowAtIndexPath in UITableViewCell.

    - by Kalle
    I have a table view with varying height, as defined in the heightForRowAtIndexPath. For some very odd reason, the image is "indented" to the right based on the height; if the height is low enough, the image is stuck to the left side of the cell, but as the height increases, the image for said cell is shifted rightward compared to other rows. The result of this is a very poor looking list, with images floppily laid out in a zig-zag pattern depending on the height of each individual row. The problem is revealed by this simple example: - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { return (indexPath.row+1) * 50; } Each cell is set up (simplified) as a "Subtitle" style cell with: // ... cell.textLabel.text = @"foo"; cell.detailTextLabel.text = @"bar"; cell.imageView.backgroundColor = [UIColor redColor]; // for debugging; i have images with transparent bg cell.imageView.image = anImageThatIs55x50pixelsBig; return cell; Any ideas? My head bleeds from the wall-love-affair. Edit: uploaded a screen which displays this. The "image" is just a screenshot of a tiny area of the screen which makes it look a little weird, but you get the picture I'm sure: http://img28.imageshack.us/img28/549/screenshot20100311at172.png

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  • How can I work around "Xcode could not locate source file"

    - by Septih
    Hello, I'm working with the ID3 framework in Xcode (which has since disappeared off the face of the web - including google cache!). I'm testing out an import mp3 feature which allows them to edit the tags as they import them. One of the test cases is a corrupt or invalid mp3 with no proper id3 header. The problem I'm having is that when updating the tags of the invalid mp3 (updateFile:), the ID3 framework attempts to use id3V1Tag.m (I assume it falls back to this if it can't find the v2 tag) and this is where I get the Xcode error (whilst running the program, not building): Xcode could not locate source file: id3V1Tag.m (line: 299) Even in a release build this crashes the program, so it's not something I can really ignore. I've tried putting a try/catch block around it but it's not treated as an exception so doesn't get caught. The function to load the tag data for the file returns a BOOL but it appears this only returns false if the given file doesn't exist, so this doesn't help either. Current code: [tagData release]; tagData = [[TagAPI alloc] initWithGenreList:nil]; tagsLoaded = [tagData examineFile:exportPath]; if(tagsLoaded) { [tagData setTitle:title]; [tagData setArtist:artist]; [tagData setComments:comments]; @try { [tagData updateFile]; } @catch (id e){ NSLog(@"h"); } }

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  • UINavigationController from UIViewController

    - by 4thSpace
    I currently have this workflow in a tab based app: Tab1 loads... ViewOne : UIViewController >> PickerView : UIViewController >> DetailView : UIViewController "" means loads based on user action. I'd like navigation bars on PickerView and DetailView. PickerView just needs a cancel button in the top left of its nav bar. DetailView needs the normal navbar back button. I already have PickerView's nav bar wired up through IB and working. I'm not sure what to do with PickerView's nav bar. PickerView is also loaded from Tab2, who's main view starts as a UINavigationController. PickerView's nav bar works fine in that case. ViewOne should not have a navigation bar. Any ideas?

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  • UITextView insert text in the textview text

    - by John Smith
    I want to have to occasionally insert text into the UITextView text object. For example, if the user presses the "New Paragraph" button I would like to insert a double newline instead of just the standard single newline. How can I go about such? Do i have to read the string from UITextView, mutate it, and write it back? Then how would I know where the pointer was? Thanks

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  • The accossoryView of a UITableViewCell disappears after the visible view is changed

    - by Luca
    Hi! I'm experiencing this strange situation. I have a UITableView where, when the user selects a cell, a long (network) process begins. So, I performed this in a background thread and I placed (in the didSelectRowAtIndexPath) a UIActivityIndicatorView as the accessory view. This is what I wrote: UITableViewCell* cell = [self.tableView cellForRowAtIndexPath:indexPath]; UIActivityIndicatorView* activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; cell.accessoryView = activityView; [activityView startAnimating]; [activityView release]; everything seems to work correctly, except that, if during a loading process (when the indicator is animated), I switch the view using a UITabBar, when I go back to the UITableView, the UIActivityIndicatorView that should still be there has disappeared. Any idea of what I did wrong? Thanks!

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  • ASIHTTPRequest crash in ASIInputStream forwardInvocation:

    - by catlan
    Does somebody else has randomly seen crashes in ASIInputStream forwardInvocation: during the use of ASIFormDataRequest? (the request was startAsynchronous) Here is the backtrace: #0 0x95877b83 in CFRunLoopSourceSignal () #1 0x958daa45 in _CFStreamScheduleWithRunLoop () #2 0x9588d05d in __invoking___ () #3 0x9588cfc8 in -[NSInvocation invoke] () #4 0x958c8f28 in -[NSInvocation invokeWithTarget:] () #5 0x0001d7ee in -[ASIInputStream forwardInvocation:] (self=0x228d40, _cmd=0x972d80c0, anInvocation=0x225a70) at /Users/catlan/Projekte/TBU/ASIInputStream.m:75 #6 0x9588de54 in ___forwarding___ () #7 0x9588d982 in __forwarding_prep_0___ () #8 0x958da8f8 in CFReadStreamScheduleWithRunLoop () #9 0x958daa26 in _CFStreamScheduleWithRunLoop () #10 0x958daa26 in _CFStreamScheduleWithRunLoop () #11 0x00015d4d in -[ASIHTTPRequest scheduleReadStream] (self=0x2318e0, _cmd=0x23490) at /Users/catlan/Projekte/TBU/ASIHTTPRequest.m:2608 #12 0x0000de97 in -[ASIHTTPRequest startRequest] (self=0x2318e0, _cmd=0x23827) at /Users/catlan/Projekte/TBU/ASIHTTPRequest.m:1005 #13 0x0000b56c in -[ASIHTTPRequest main] (self=0x2318e0, _cmd=0x973cfd56) at /Users/catlan/Projekte/TBU/ASIHTTPRequest.m:624 #14 0x0000b0a8 in -[ASIHTTPRequest startAsynchronous] (self=0x2318e0, _cmd=0x2136e) at /Users/catlan/Projekte/TBU/ASIHTTPRequest.m:546 #15 0x00004b0f in -[TBUploadWindowController requestUserInfo] (self=0x2f09e10, _cmd=0x205ed) at /Users/catlan/Projekte/TBU/TBUploadWindowController.m:119 #16 0x92591ad9 in __NSFireDelayedPerform () #17 0x95851edb in __CFRunLoopRun () #18 0x9584f864 in CFRunLoopRunSpecific () #19 0x9584f691 in CFRunLoopRunInMode () #20 0x908fdf6c in RunCurrentEventLoopInMode () #21 0x908fdd23 in ReceiveNextEventCommon () #22 0x908fdba8 in BlockUntilNextEventMatchingListInMode () #23 0x96b4eac5 in _DPSNextEvent () #24 0x96b4e306 in -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] () #25 0x96b1049f in -[NSApplication run] () #26 0x96b08535 in NSApplicationMain () #27 0x00002c8c in main (argc=1, argv=0xbffff858) at /Users/catlan/Projekte/TBU/main.m:13 Any idea on how to debug this?

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  • TTNavigator doesn't use existing navigation bar (iPhone)

    - by user220770
    I am using the three20 framework in one view controller of my App. I create TTNavigator object and open a url which works fine. The problem is that TT creates it's own navigation bar and does not use the existing bar. There is no back button on the new nav bar so I cannot go back to my previous view controller. Has anybody run into this issue? Any ideas on how to fix (besides not using three20)? Thanks

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  • Using an NSButtonCell with template image in a NSTableView

    - by alloy
    In Interface Builder, I have set the dataCell of one of the columns of my NSTableView instance to be NSButtonCell. This works as expected, however, trying to use a ‘template’ image doesn't yield the expected visual result when clicking the button. How I configure the NSButtonCell: Image: NSRevealFreestandingTemplate Scaling: None Bezel: Bevel Type: Momentary Push In Bordered: false Expected result when clicking the button: Since the image is a ‘template’, the button should render its ‘on’ state. The background, ie the space surrounding the image, should not change. Actual result when clicking the button: No difference in the ‘state’ of the rendered image. The background color changes to white. Even-though I’ve tried my best to make the explanation of the problem as concise as possible, I’ve also made a simple screencast to visually illustrate the problem. And uploaded the demo app.

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  • IPad App Issue - Webview

    - by Manoj Khaylia
    Hi all I developing a Ipad application I am trying to use Webview but not able to open the URL in webview I am using following code NSURL *fileURL = [[[NSURL alloc] initWithString:@"http://www.google.com/"] autorelease]; NSURLRequest *requestObj = [NSURLRequest requestWithURL:fileURL]; [webview loadRequest:requestObj]; this code working well for Iphone app not not working for Ipad app. Is anything wrong. Thanks Amit Battan

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  • Problem sending ASCII Art via SMS and Email in iPhone SDK

    - by PARTH
    Hi Guys, In my iPhone app, I have ASCII art, which I am sharing via email and SMS. I have inserted the ASCII art into the Sqlite database along with the newline character and spaces. Problem is when I send them through SMS and Email, the whole ASCII art comes in left alignment and spacing between characters is lost. ASCII Art fetched in Label in my app is as below Same ASCII Art when inserted to Email API (MFMailComposeViewController) is as below How to maintain the spaces? What can be done? Please Help and Suggest. Thanks

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  • Cocos2D: Problem Rotating a CCMenu

    - by srikanth rongali
    If I try to do actions over menuItems but the actions are not running as expected. I think code below should make the menuItem rotate by 90 degrees but when I run it, the menuItem translates from its coordinates to another coordinate then returns to its original coordinate. The complete translation takes 3 seconds. What I need is for the menuItem to rotate by 90 degrees in place within a 3 seconds duration. Please explain where I have done wrong? CCMenuItemImage *targetE;//Globally declared CCMenu *menu;//Globally declared -(id)init { if( (self = [super init]) ) { isTouchEnabled = YES; CGSize windowSize = [[CCDirector sharedDirector] winSize]; targetE = [CCMenuItemImage itemFromNormalImage:@"grossinis_sister1.png" selectedImage:@"grossinis_sister1.png" target:self selector:@selector(touch:)]; menu = [CCMenu menuWithItems:targetE,nil]; id action4 = [CCRotateBy actionWithDuration:3.0 angle:90]; [menu runAction: [CCSequence actions: action4, nil]]; menu.position = ccp(windowSize.width/2 + 200, windowSize.height/2); [self addChild: menu z:10]; } return self; } @end Thank You.

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  • UITableView and SearchBar problem

    - by dododedodonl
    Hi all, I'm trying to add a Search bar to my UITableView. I followed this tutorial: http://clingingtoideas.blogspot.com/2010/02/uitableview-how-to-part-2-search.html. I'm getting this error if I type a letter in the search box: Rooster(10787,0xa05ed4e0) malloc: *** error for object 0x3b5f160: double free *** set a breakpoint in malloc_error_break to debug. This error occurs here: - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString { [self handleSearchForTerm:searchString]; return YES; } (on the second line) - (void)handleSearchForTerm:(NSString *)searchTerm { [self setSavedSearchTerm:searchTerm]; if ([self searchResults] == nil) { NSMutableArray *array = [[NSMutableArray alloc] init]; [self setSearchResults:array]; [array release]; } //Empty the searchResults array [[self searchResults] removeAllObjects]; //Check if the searchTerm doesn't equal zero... if ([[self savedSearchTerm] length] != 0) { //Search the whole tableList (datasource) for (NSString *currentString in tableList) { NSString *klasString = [[NSString alloc] init]; NSInteger i = [[leerlingNaarKlasList objectAtIndex:[tableList indexOfObject:currentString]] integerValue]; if(i != -1) { klasString = [klassenList objectAtIndex:(i - 1)]; } //Check if the string matched or the klas (group of school) if ([currentString rangeOfString:searchTerm options:NSCaseInsensitiveSearch].location != NSNotFound || [klasString rangeOfString:searchTerm options:NSCaseInsensitiveSearch].location != NSNotFound) { //Add to results [[self searchResults] addObject:currentString]; //Save the klas (group of school). It has the same index as the result (lastname) NSString *strI = [[NSString alloc] initWithFormat:@"%i", i]; [[self searchResultsLeerlingNaarKlas] addObject:strI]; [strI release]; } [klasString release]; } } } Can someone help me out? Regards, Dodo

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  • Creating a bundle - What's going wrong?

    - by joeylange
    Hello everyone, I've got a relatively simple one here. I'm making bundles to live inside the Resources folder of my application (and possibly in the Application Support folder). These bundles will contain template information for the data the application handles. I've constructed a bundle, with extension "booksprintstyle", and the directory structure is up to spec. I have an Info.plist all set and I think I've filled in all the values I need to. Do I need to change something in my App to have these folders-with-extensions recognized as bundle files, or am I missing something in my bundle structure? I noticed that some bundles have a file called PkgInfo; is that important? Below is the Info.plist from my bundle. <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>CFBundleDevelopmentRegion</key> <string>English</string> <key>CFBundleGetInfoString</key> <string>1.0, Copyright © 2009 Joey Lange</string> <key>CFBundleIdentifier</key> <string>net.atherial.books.exporter.printingpress.printstyle</string> <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string> <key>CFBundleName</key> <string>Books Print Style - Generic</string> <key>CFBundlePackageType</key> <string>BNDL</string> <key>CFBundleShortVersionString</key> <string>1.0</string> <key>CFBundleSignature</key> <string>????</string> <key>CFBundleDisplayName</key> <string>Books Print Style - Generic</string> <key>NSHumanReadableCopyright</key> <string>Copyright © 2009 Joey Lange</string> <key>CFBundleVersion</key> <string>1.0</string> </dict> </plist>

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  • Set the width and height for a TTLauncherItem

    - by Koning Baard
    I have this: _launcherView.pages = [NSArray arrayWithObjects: [NSArray arrayWithObjects: [[[TTLauncherItem alloc] initWithTitle:@"New Note" image:@"bundle://Icon.png" style:TTSTYL URL:@"http://www.google.com/" canDelete:NO] autorelease], [[[TTLauncherItem alloc] initWithTitle:@"To Do Items" image:@"bundle://Icon.png" URL:@"http://www.yahoo.com/" canDelete:NO] autorelease], nil], nil]; How can I set the width and height for the items? I want all items to be 64x64 pixels. Thanks

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