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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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  • iPhone write to file (alternative directory)

    - by strider2k
    New to iPhone 3.2, Apple introduced File-Sharing support. Details can be found at https://developer.apple.com/iphone/library/releasenotes/General/WhatsNewIniPhoneOS/Articles/iPhoneOS3_2.html#//apple_ref/doc/uid/TP40009337-SW1 . Now, most examples floating around in the web demonstrates writing to the documents directory. What if I want to write files from my app but I don't want the user to be able to see it via iTunes? I'm looking at the Files and Networking section of the iPhone OS Programming Guide and I'm unsure what would be a good alternative to the documents directory for writing files to hide from the user and not be rejected by Apple's review team.

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  • coco2d tab view for multi player

    - by godzilla
    I am currently developing a card game for the iphone using cocas2d. I am currently in need of a tab view with each tab representing a player and his / her set of cards. Currently i have a single view representing just one player. It seems as though cocas2s is not really built do have multiple views, to do this and it would require some serious amount of hacking around with the code. What would be the most efficient way to accomplish this?

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  • Reverse geocode street name and city as text

    - by Taylor Satula
    Hello, I have been having some trouble finding a good way to output just the street name and city as text (Infinite Loop, Cupertino shown here) that can be displayed in my iPhone app. This needs to be able to dynamically change as you change streets and city. I don't have the slightest idea of how to do this, I hope someone can help. I have attached a very rough image of what I am trying to acheave. I have found this (http://code.google.com/apis/maps/documentation/javascript/services.html#Geocoding) for google maps about how to reverse geocode using javascript, but what I do not understand is how this would be done in a iPhone development setting. I work in web design and I see how it would be done in HTML but I am very new to iPhone development and don't have the slightest clue of how it would be done here. If someone could spell out how to do this I would be extremely grateful. I cannot seem to find what I am looking for by searching Google. Reference picture: http://www.threepixeldrift.com/images/deep-storage/reversegeocodeiphoneapp.jpg

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  • Custom cell and Delete/Move indicators

    - by Kamchatka
    Hello, I have a custom UITableViewCell. However, when I got in edit mode, I don't have any Delete and Move indicators appearing. The custom cell draws itself in the contentView. In layoutSubviews, I make sure there is space on the left and one the right of the contentView so that the controls can appear (if this was the problem). - (void)layoutSubviews { self.contentView.frame = CGRectMake(50, 0, self.frame.size.width - 100, sub.thumbnail.size.height + 20); } In the UITableViewController, I return YES in: - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { How could I solve this lack of interactivity. Is there something specific for custom cells? Thanks!

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  • How to wait until location is completely found? (Core Location)

    - by sudo rm -rf
    Hello. I have a problem within my app. I'm trying to find the user's location to the best preciseness in order to determine their zip-code. Currently I have a button that, when pressed, starts a method named locateMe. -(IBAction)locateMe; { self.locationManager = [[CLLocationManager alloc] init]; locationManager.delegate = self; locationManager.desiredAccuracy = kCLLocationAccuracyBest; [locationManager startUpdatingLocation]; Then I've implemented didUpdateToLocation: -(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation; { NSLog(@"Found location! %f,%f",newLocation.coordinate.latitude,newLocation.coordinate.longitude); } I had previously done much more complicated stuff in didUpdateToLocation but as I tested some things I realized that the first location it found was not precise in the least. So, I put the NSLog call in there and it gave me an output similar to below... Found location! 39.594093,-98.614834 Found location! 39.601372,-98.592171 Found location! 39.601372,-98.592171 Found location! 39.611444,-98.538196 Found location! 39.611444,-98.538196 As you can see, it first gives me a value which is not correct, which was causing problems within my app because it wasn't giving the correct location. So, here's my question. Is there any way I can wait for the location manager to finish finding the most precise location? Thanks in advance! EDIT: I'm wanting something like this: if (newLocation.horizontalAccuracy <= locationManager.desiredAccuracy) { } But it never gets called!

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  • NSXMLParser with multiple attributes

    - by mitb67
    Hi. I have the following XML (doing an app for iPhone): <Row> <Field name="employee_id_disp">00070431</Field> <Field name="given_name">John</Field> <Field name="family_name">Doe</Field> </Row> ... How can I retrieve values only for one of the attributes, for example value "John" for attribute name="given_name" ? Thanks for answers.

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  • Get content length from UIWebView

    - by g0ld2k
    I am looking to find out if a web page has changed, I was going to use the content length of the web page but have not seen a way to do so. Any ideas? Or can anyone think of another way to check periodically if a web page has changed? Any ideas are appreciated. Thanks, Chris

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  • Triple tap with UITapGestureRecognizer

    - by JK
    I have implemented 3 gesture recognizers - single, double and triple tap. Single and double works perfectly, but the 3 tap gesture is interpreted as a 2 tap gesture, despite the number of taps being set correctly. Does a 3 tap gesture require additional code? Thank you

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  • Using setters On Int?

    - by fuzzygoat
    Just curious, given: unsigned int pulseCounter_001; @property(nonatomic, assign)unsigned int pulseCounter_001; @synthesize pulseCounter_001; Is there any reason to use: [self setPulseCounter_001:0]; Or just use: pulseCounter_001 = 0; Style wise I think the latter says "we are setting an int" better, just curious as to any overheads involved in each? gary

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  • How to rotate a UIImageView?

    - by jkally
    It's quite frustrating not to be able to do such a simple task: I have an "app" with a single viewcontroller, and in it a single UIImageView, that's initialized to a specific image at potrtait mode. Now when the iPhone gets roteated to landscape mode and the shouldAutorotateToInterfaceOrientation event fires, at which I return YES, my resulting UIImageView looks totally screwed up: either the image is stretched so to fill landscape mode frame (which looks ridiculuous of course) or the top and bottom of the image are cropped. How can I have my UIImageview and the contained image handle the device rotation gracefully, and display normal looking image at landscape mode as well?

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  • Where should I put some code for loading application data?

    - by cgp
    I have a tab-bar and navigation controller application (like Youtube app or Contacts app). Where is the correct place to have the code for loading some data from the web? These data are necessary for all the tabs of the Tab Controller and the app can't display anything before all data are downloaded and parsed from the app (except a loading indicator view of course). Up to now I put it in the AppDelegate but it somehow doesn't feel right.. What's the correct way to do it? Thanks!

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  • How to change format of date/time?

    - by 4thSpace
    I have this date and time format: 2010-05-19 07:53:30 and would like to change it to: Wednesday @ 7:53PM 5/19/2010 I'm doing this, which gets the current format: NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss"; but when I change the format, I end up with a null. For example: formatter.dateFormat = @"hh:mm tt MM-dd-yyyy"; date = [formatter stringFromDate:formattedDate]; date will be null. I want to put the end result into an NSString. It would be nice if time and date could come out as separate properties so I can arrange them however I like. Any ideas on how I can change the formatting?

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  • How to edit an default Xcode template?

    - by HelloMoon
    When I create an NSObject subclass, I always get an empty implementation. There are some things I always put in my code like pragma marks and -dealloc methods. I prefer to just delete stuff that I don't need over writing it with typos from scratch every time I need it. I need -dealloc and -init almost always, but they don't ship with the default template. Is there a way to customize what's in there?

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  • How can I check the content of the arrays? Parsing XML file with ObjectiveC

    - by skiria
    I have 3 classes- video { nameVideo, id, description, user... } topic {nameTopic, topicID, NSMutableArray videos; } category {nameCategory, categoryID, NSMUtableArray topics} And then in my app delegate I defined- NSMutableArray categories; I parse an XML file with this code. I try the arrays hierachy, and i think that i don't add any object on the arrays. How can I check it? What's wrong? (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict { if([elementName isEqualToString:@"Videos"]) { //Initialize the array. appDelegate.categories = [[NSMutableArray alloc] init]; } else if ([elementName isEqualToString:@"Category"]) { aCategory = [[Category alloc] init]; aCategory.categoryID = [[attributeDict objectForKey:@"id"] integerValue]; NSLog(@"Reading id category value: %i", aCategory.categoryID); } else if ([elementName isEqualToString:@"Topic"]) { aTopic = [[Topic alloc] init]; aTopic.topicID = [[attributeDict objectForKey:@"id"] integerValue]; NSLog(@"Reading id topic value: %i", aTopic.topicID); } else if ([elementName isEqualToString:@"video"]) { aVideo = [[Video alloc] init]; aVideo.videoID = [[attributeDict objectForKey:@"id"] integerValue]; aVideo.nameTopic = currentNameTopic; aVideo.nameCategory = currentNameCategory; NSLog(@"Reading id video value: %i", aVideo.videoID); } NSLog(@"Processing Element: %@", elementName); } (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string { if(!currentElementValue) currentElementValue = [[NSMutableString alloc] initWithString:string]; else [currentElementValue appendString:string]; NSLog(@"Processing Value: %@", currentElementValue); } (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { if([elementName isEqualToString:@"Videos"]) return; if ([elementName isEqualToString:@"Category"]) { [appDelegate.categories addObject:aCategory]; [aCategory release]; aCategory = nil; } if ([elementName isEqualToString:@"Topic"]) { [aCategory.topics addObject:aTopic]; //NSLog(@"contador: %i", [aCategory.topics count]); //NSLog(@"contador: %@", aTopic.nameTopic); [aTopic release]; aTopic = nil; } if ([elementName isEqualToString:@"video"]) { [aTopic.videos addObject:aVideo]; NSLog(@"count number videos: %i", [aTopic.videos count]); -- always 0 NSLog(@"NOM CATEGORIA VIDEO: %@", aVideo.urlVideo); -- OK [aVideo release]; aVideo = nil; } if ([elementName isEqualToString:@"nameCategory"]) { //[aCategory setValue:currentElementValue forKey:elementName]; aCategory.nameCategory = currentElementValue; currentNameCategory = currentElementValue; } if ([elementName isEqualToString:@"nameTopic"]) { aTopic.nameTopic = currentElementValue; currentNameTopic = currentElementValue; } else [aVideo setValue:currentElementValue forKey:elementName]; [currentElementValue release]; currentElementValue = nil; }

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  • zooming from a particular point

    - by Chandan Shetty SP
    I am using this code to zoom from a particular point CGPoint getCenterPointForRect(CGRect inRect) { CGRect screenRect = [[UIScreen mainScreen] bounds]; return CGPointMake((screenRect.size.height-inRect.origin.x)/2,(screenRect.size.width-inRect.origin.y)/2); } -(void) startAnimation { CGPoint centerPoint = getCenterPointForRect(self.view.frame); self.view.transform = CGAffineTransformMakeTranslation(centerPoint.x, centerPoint.y); self.view.transform = CGAffineTransformScale( self.view.transform , 0.001, 0.001); [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:kTransitionDuration]; self.view.transform = CGAffineTransformIdentity; [UIView commitAnimations]; } Its not working. What is the correct way to do zooming from a particular point.

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  • Loading UINavigationController from another nib automatically by UITabBarController

    - by porneL
    I think I've found the cause: Document Info window in IB has a warning: "'Selected Navigation Controller (Second)' has nib name property set to 'SecondView.nib', but this view controller is not intended to have its view set in this manner." Bummer. I've built nib in Interface Builder that has UITabBarController at top level and switches between UINavigationControllers. It works fine when everything is in a single nib file, but I'd like to use separate nib files for UINavigationControllers. Starting with Apple's TabBar template, if I just change class of SecondView to UINavigationController, it all breaks: and all I get is this: Is it possible to have separate file for UINavigationController without programmatically setting everything? I would like TabBarController to handle loading and unloading of nibs.

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  • How can I use a single UIToolbar with multiple different UIViewControllers?

    - by Aeonaut
    I have a simple app with two basic screens, a UIMapView and a UITableView. I'd like to have a toolbar at the bottom with a couple of buttons and a UISegmentedControl with two segments: "Map" and "Table". (The layout is similar to the Google Maps app that ships with the iPhone.) How can I keep the same toolbar while presenting either the UIMapView (with a UIMapViewController) or the UITableView (with a UITableViewController) when the user switches back and forth on the segmented control? Of course, I can just create an identical toolbar for each of the two different views and display them separately, but is there a better way?

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