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  • How can I detect if a string contains punctuation marks at the end?

    - by Sheehan Alam
    Lets assume I have the string: "Hello I like your shoes #today...!" I am tokenizing the string by spaces: return [string componentsSeparatedByString:@" "]; So my array contains: Hello I like your shoes #today...! I want to focus on "#today...!" any word that has a # in the prefix I am changing the font color. How can I make sure that only "#today" has its font color changed? I would basically like to figure out if a word has a punctuation mark at the end, and change the color for characters before the punctuation mark.

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  • NSString stringWithFormat question

    - by John Smith
    I am trying to build a small table using NSString. I cannot seem to format the strings properly. Here is what I have [NSString stringWithFormat:@"%8@: %.6f",e,v] where e is an NSString from somewhere else, and v is a float. What I want is output something like this: Grapes: 20.3 Pomegranates: 2.5 Oranges: 15.1 What I get is Grapes:20.3 Pomegranates:2.5 Oranges:15.1 How can I fix my format to do something like this?

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  • NSTableView - Trying to fit exactly 9 rows

    - by Justin808
    Hi, I'm trying to size the rows of a NSTableView to exactly 9 rows fit. I've tried [menuTableView setRowHeight:floor(menuRect.size.height / 9)]; and I've tried [menuTableView setRowHeight:(menuRect.size.height / 9)]; and [menuTableView setRowHeight:ceil(menuRect.size.height / 9)]; but all of them have the same issue, if I've selected row 0 then row 9 is clipped at the bottom and if I select row 9 then row 0 is clipped at the top. How can I set up a NSTableView to show 9 full rows so no matter what there is never a partial row visible? Thanks, edit: Yes menuRect is the frame for the menuTableView

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  • How do I bind to a custom view in Cocoa using Xcode 4?

    - by Newt
    I'm a beginner when it comes to writing Mac apps and working with Cocoa, so please forgive my ignorance. I'm looking to create a custom view, that exposes some properties, which I can then bind to an NSObjectController. Since it's a custom view, the Bindings Inspector obviously doesn't list any of the properties I've added to the view that I can then bind to using Interface Builder. After turning to the Stackoverflow/Google for help, I've stumbled across a couple of possible solutions, but neither seem to be quite right for my situation. The first suggested creating an IBPlugin, which would then mean my bindings would be available in the Bindings Inspector. I could then bind the view to the controller using IB. Apparently IBPlugins aren't supported in Xcode 4, so that one's out the window. I'm also assuming (maybe wrongly) that IBPlugins are no longer supported because there's a better way of doing such things these days? The second option was to bind the controller to the view programmatically. I'm a bit confused as to exactly how I would achieve this. Would it require subclassing NSObjectController so I can add the calls to bind to the view? Would I need to add anything to the view to support this? Some examples I've seen say you'd need to override the bind method, and others say you don't. Also, I've noticed that some example custom views call [self exposeBinding:@"bindingName"] in the initializer. From what I gather from various sources, this is something that's related to IBPlugins and isn't something I need to do if I'm not using them. Is that correct? I've found a post on Stackoverflow here which seems to discuss something very similar to my problem, but there wasn't any clear winner as to the best answer. The last comment by noa on 12th Sept seems interesting, although they mention you should be calling exposeBinding:. Is this comment along the right track? Is the call to exposeBinding really necessary? Apologies for any dumb questions. Any help greatly appreciated.

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  • How does Mach-O loader loads different NSString objects?

    - by overboming
    I have known that If you define a bunch of @"" NSString objects in the source code in Mac OS. These NSStrings will be stored in a segment in the Mach-O library. Section sectname __ustring segname __TEXT addr 0x000b3b54 size 0x000001b7 offset 731988 align 2^1 (2) reloff 0 nreloc 0 flags 0x00000000 reserved1 0 reserved2 0 If I hex dump the binary, they are aligned closely one by one with a 0x0000as separator. What I want to know is how does the loader in Mac OS X load these NSStrings when the program runs? Are they loaded simpily by recognize the 0x0000 separator or these is a string offset table elsewhere in the binary pointing to separate NSString objects? Thanks. (What I really want to do is the increase the length of one of the NSString, so I have to know how the loader recognize these separate objects)

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  • preventing selection on MKPointAnnotation

    - by Derek
    Is there a way to prevent an annotation in a MKMapView instance from being enabled. In other words, when the user taps the red pin on the map, is there a way to prevent it from highlighting the pin. Right now the pin turns dark when touched... Edit: I'm using the following code to return the MKPinAnnotationView // To future MKMapView users - Don't forget to set _mapView's delegate _mapView.delegate = self; _annotation = [[MKPointAnnotation alloc] init]; _annotation.coordinate = myLocation; [_mapView addAnnotation:_annotation]; -(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation{ MKPinAnnotationView *pin = [[MKPinAnnotationView alloc] initWithAnnotation:_annotation reuseIdentifier:@"id"]; pin.enabled = NO; return pin; }

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  • Breakpoint pointing out "objc_autoreleaseNoPool"

    - by Andrew
    So I'm debugging an app in preperation for its app so release, and I enabled a universal breakpoint for "All Exceptions". Since then, everytime I run the app, the console prints: Catchpoint 2 (throw)Pending breakpoint 1 - "objc_exception_throw" resolved objc[11765]: Object 0x8f18ff0 of class __NSCFLocale autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug objc[11765]: Object 0x8f190a0 of class __NSCFNumber autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug objc[11765]: Object 0x8f1fef0 of class __NSCFLocale autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug Literally printed 3 times. I have no idea what this means but it looks bad. Any advice would be appreciated.

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  • Deleting Multiple rows from a TableView

    - by Sid
    hi Frnz, i want to delete multiple rows from a table view based on users selection.obviously i cant use didSelectRowAtIndexPath method coz it will be called for every row selected. i want to allow user to select multiple rows for deletion and then delete them in one go...Is it possible if yes then how to go about it.Also i am using a single view based project and i want the header of table view changed to "Delete" on the same view when the user want to delete the rows from the view. Thx

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  • Using installed identity certificate from within an app on iPhone

    - by Sabi Tinterov
    Hi, My question is: is there a way to use the installed identity certificates on the phone from within my app. For example similar case like with saffary: if certain site requires client certificate, the user has to install it on the phone and then when authenticating saffary uses the installed certificate to authenticate. I need to do the same: 1.User installs certificate on the phone. 2. The user starts the application and authenticates using the installed certificate. Thanks

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  • Compile error on action for iPhone app: "error:expected ')' before ';' token"

    - by Jamis Charles
    I'm working through the tutorials in the "Beginning iPhone Development" book. I'm on chapter 4 and I'm getting the following compile error on the "if (segment == kShowSegmentIndex)" line: error:expected ')' before ';' token Here's my code: - (IBAction)toggleShowHide:(id)sender{ UISegmentedControl *segmentedControl = (UISegmentedControl *)sender; NSInteger segment = segmentedControl.selectedSegmentIndex; if (segment == kShowSegmentIndex) [switchView setHidden:NO]; else [switchView setHidden:YES]; } I've compared it with the code in the book several times and have retyped it. Sounds like this error is caused by improper brace placement. Any thoughts?

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  • objectWithFieldNAme Best Practice for CoreData

    - by Rafael
    Hello, I'm trying to implements some methods for my CoreData models and I'm wonndering if the way I'm doing it is a good practice. I want to implement methods of the type getObjectsWithFieldName. This methods could be used by severals views. So the way I'm doing it is implementing a Class method in the model in the following way: +(NSArray *)getObjectWithFieldName:(NSString *)fieldName andContext:(NSManagedObjectContext *) context; Is this a good practice? Or there is another way to do it for iPhone Development? Thanks in advanced.

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  • Incompatible Types in Initialization

    - by jack
    I have the following code in a subroutine that produces an incompatible types in initialization error on the varVal library in the subroutine evaluateExpression: NSDictionary *varVal; for (int i=0; i<varCount; i++) { [varVal setObject:[(i+1)*2 stringValue] forKey:[i stringValue]]; } double result =[[self brain] evaluateExpression:[[self brain] expression] usingVariableValues:varVal]; My subroutine declaration in the brain.h file is: +(double)evaluateExpression:(id)anExpression usingVariableValues:(NSDictionary *)variables; I'd appreciate any help.

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  • Putting data from SONObjectWithData to UITableView

    - by user2966615
    i am building a app in which i am getting data from a php file and already NSLoging it in xcode and it is showing data in this format: jsonObject=( ( 1, abc, "[email protected]", "501 B3 Town" ), ( 2, sam, "[email protected]", "502 B3 Town" ), ( 3, jhon, "[email protected]", "503 B Town" ) ) and here is my viewdidload - (void)viewDidLoad { [super viewDidLoad]; statuses=[[NSMutableArray alloc]init]; NSURL *myURL = [NSURL URLWithString:@"http://url/result.php"]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60]; [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) { NSLog(@"Finished with status code: %i", [(NSHTTPURLResponse *)response statusCode]); id jsonObject = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil]; NSLog(@"jsonObject=%@",jsonObject); statuses = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; }]; } now i want to display all records in uitableview. can anyone tell me how can i do that. Thanks

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  • Cocoa touch - GameKit GKPeerPickerController devices

    - by teepusink
    Hi, I'm now testing GKPeerPickerController. I have a simple app that just have a button and do GKPeerPickerController on a device. However, all it does is "Looking for other iPhones or iPod touches..." I do have another device nearby with bluetooth turned on BUT without the app installed. Does that other device also need to have the app installed? Thanks, Tee

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  • editButtonItem set but no minus buttons?

    - by QAD
    My edit button is placed in viewDidLoad: self.navigationItem.rightBarButtonItem = self.editButtonItem; It shows up correctly on the nav bar, and tapping this button indeed change it to Done. However, no minus buttons show up in my table rows. Swiping a row, then tap Delete works, though. Any ideas? EDIT 1: Here's how I'm doing: - (void)loadView { tableView = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; tableView.delegate = self; tableView.dataSource = self; tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; self.view = tableView; } EDIT 2: My observation is that the edit and minus buttons display fine if my tableview is created in IB (RootViewController). The other two (or three) tableview are created by the aforemention code, so that might be the problem. Guess I'd have to dive in to isEditing, editing and whatnot.

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  • NSURLConnection shown as leaking in instruments

    - by Gyozo Kudor
    Hello another stupid question regarding leaks and also NSURLConnection. How do i release it? Is it enough if i release in the following 2 methods? (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error (void)connectionDidFinishLoading:(NSURLConnection *)connection Because in instruments it shows me the line where I alloc my connection as the source of leaking. OK I don't get it. After the following code my urlConnection has a retain count of 2. WTF? NSURLConnection *urlConnection = [[NSURLConnection alloc] initWithRequest: urlRequest delegate: self]; This is the line that instruments points me to. I find this very weird.

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  • Json get a parameter can't access on it iOS

    - by Usi Usi
    That's an example { "updated":1350213484, "id":"http://www.google.com/reader/api/0/feed-finder?q\u003dProva\u0026output\u003djson", "title":"Risultati di feed per \"Prova\"", "self":[ { "href":"http://www.google.com/reader/api/0/feed-finder?q\u003dProva\u0026output\u003djson" } ], "items":[ { "title":"Home Page - La prova del cuoco", "id":"http://www.laprovadelcuoco.rai.it/", "updated":1350213485, "feed":[ { "href":"http://www.laprovadelcuoco.rai.it/dl/portali/site/page/Page-ffb545b4-9e72-41e5-866f-a465588c43fa-rss.html" } ], "alternate":[ { "href":"http://www.laprovadelcuoco.rai.it/", "type":"text/html" } ], "content":{ "direction":"ltr", "content":"Diventa un cuoco provetto con “La Prova del Cuoco”: le videoricette in un' applicazione di facile e veloce consultazione per il tuo Iphone. Scopri come acquistare ..." } }, { "title":"Le prove Invalsi di matematica e italiano", "id":"http://online.scuola.zanichelli.it/quartaprova/", "updated":1350213486, "feed":[ { "href":"http://online.scuola.zanichelli.it/quartaprova/feed/" } ], "alternate":[ { "href":"http://online.scuola.zanichelli.it/quartaprova/", "type":"text/html" } ], "content":{ "direction":"ltr", "content":"Un sito Zanichelli dedicato alle prove Invalsi di italiano e matematica: esercitazioni, consigli, informazioni utili, novità, aggiornamenti e blog d'autore sulle prove ..." } }, How can I get the feed URL? That's what I do NSString *daParsare=[reader searchFeed:searchText]; NSArray *items = [[daParsare JSONValue] objectForKey:@"items"]; for (NSDictionary *item in items) { NSString *title = [item objectForKey:@"title"]; NSString *feed = [item valueForKeyPath:@"feed.href"]; } [tab reloadData]; With the title everything is ok but when I try to access to the feed paramater I get the error...

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  • How to specify the left, right, or title View button in XIB

    - by Sharen Eayrs
    I do not want to create a custom navigation bar. I am pushing a UIViewController and I want to customize how the navigation bar looks for that UIViewController In story board, we just specify the segue and a nav bar show up on the screen. We just drag and drop UIBarItem to the left and right. In XIB, the navigationBar simply doesn't show up. I can add navigation Item but the one I added is ignored. I've heard that there used to be an outlet called navigationItem but it's deprecated for reason I do not know. I can add UINavigationBar, however that would be adding my own custom bar. I want the navBar that's provided by UINavigationController.

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  • UILabel not changing when method called

    - by LyonJTill
    - (IBAction)restoreUserDefaults { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; if([defaults objectForKey:@"Exam Name"] == nil) { examName = [[NSString alloc] initWithString:@"Name"]; } else { examName = [[NSString alloc] initWithString:[defaults objectForKey:@"Exam Name"]]; } [examNameLabel setText:[NSString stringWithFormat:@"%@",examName]]; } Hey all, Basically above is the method that is being called when one ViewController is being close and another is being opened the problem is, is that the UILabel in the new ViewController isn't changing to the value i need it to? Any ideas? Regards Lyon J Till

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  • Singleton method not getting called in Cocos2d

    - by jini
    I am calling a Singleton method that does not get called when I try doing this. I get no errors or anything, just that I am unable to see the CCLOG message. Under what reasons would a compiler not give you error and not allow you to call a method? [[GameManager sharedGameManager] openSiteWithLinkType:kLinkTypeDeveloperSite]; The method is defined as follows: -(void)openSiteWithLinkType:(LinkTypes)linkTypeToOpen { CCLOG(@"WE ARE IN openSiteWithLinkType"); //I NEVER SEE THIS MESSAGE NSURL *urlToOpen = nil; if (linkTypeToOpen == kLinkTypeDeveloperSite) { urlToOpen = [NSURL URLWithString:@"http://somesite.com"]; } if (![[UIApplication sharedApplication]openURL:urlToOpen]) { CCLOG(@"%@%@",@"Failed to open url:",[urlToOpen description]); [self runSceneWithID:kMainMenuScene]; } } HERE IS THE CODE TO MY SINGLETON: #import "GameManager.h" #import "MainMenuScene.h" @implementation GameManager static GameManager* _sharedGameManager = nil; @synthesize isMusicON; @synthesize isSoundEffectsON; @synthesize hasPlayerDied; +(GameManager*) sharedGameManager { @synchronized([GameManager class]) { if (!_sharedGameManager) { [[self alloc] init]; return _sharedGameManager; } return nil; } } +(id)alloc { @synchronized ([GameManager class]) { NSAssert(_sharedGameManager == nil,@"Attempted to allocate a second instance of the Game Manager singleton"); _sharedGameManager = [super alloc]; return _sharedGameManager; } return nil; } -(id)init { self = [super init]; if (self != nil) { //Game Manager initialized CCLOG(@"Game Manager Singleton, init"); isMusicON = YES; isSoundEffectsON = YES; hasPlayerDied = NO; currentScene = kNoSceneUninitialized; } return self; } -(void) runSceneWithID:(SceneTypes)sceneID { SceneTypes oldScene = currentScene; currentScene = sceneID; id sceneToRun = nil; switch (sceneID) { case kMainMenuScene: sceneToRun = [MainMenuScene node]; break; default: CCLOG(@"Unknown Scene ID, cannot switch scenes"); return; break; } if (sceneToRun == nil) { //Revert back, since no new scene was found currentScene = oldScene; return; } //Menu Scenes have a value of < 100 if (sceneID < 100) { if (UI_USER_INTERFACE_IDIOM() != UIUserInterfaceIdiomPad) { CGSize screenSize = [CCDirector sharedDirector].winSizeInPixels; if (screenSize.width == 960.0f) { //iPhone 4 retina [sceneToRun setScaleX:0.9375f]; [sceneToRun setScaleY:0.8333f]; CCLOG(@"GM: Scaling for iPhone 4 (retina)"); } else { [sceneToRun setScaleX:0.4688f]; [sceneToRun setScaleY:0.4166f]; CCLOG(@"GM: Scaling for iPhone 3G or older (non-retina)"); } } } if ([[CCDirector sharedDirector] runningScene] == nil) { [[CCDirector sharedDirector] runWithScene:sceneToRun]; } else { [[CCDirector sharedDirector] replaceScene:sceneToRun]; } } -(void)openSiteWithLinkType:(LinkTypes)linkTypeToOpen { CCLOG(@"WE ARE IN openSiteWithLinkType"); NSURL *urlToOpen = nil; if (linkTypeToOpen == kLinkTypeDeveloperSite) { urlToOpen = [NSURL URLWithString:@"http://somesite.com"]; } if (![[UIApplication sharedApplication]openURL:urlToOpen]) { CCLOG(@"%@%@",@"Failed to open url:",[urlToOpen description]); [self runSceneWithID:kMainMenuScene]; } } -(void) test { CCLOG(@"this is test"); } @end

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