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  • White disclosure indicator

    - by Knodel
    In my app I have a UITableView with a UITableViewCellAccessoryDisclosureIndicator. I don't want to change the whole indicator, but I want to make it white instead of gray. How can I do it? Thanks in advance!

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  • Follow up viewDidUnload vs. dealloc question...

    - by entaroadun
    Clarification question as a follow up to: http://stackoverflow.com/questions/2261972/what-exactly-must-i-do-in-viewdidunload http://stackoverflow.com/questions/1158788/when-should-i-release-objects-in-voidviewdidunload-rather-than-in-dealloc So let's say there's a low memory error, and the view is hidden, and viewDidUnload is called. We do the release and nil dance. Later the entire view stack is not needed, so dealloc is called. Since I already have the release and nil stuff in viewDidUnload, I don't have it in dealloc. Perfect. But if there's no low memory error, viewDidUnload is never called. dealloc is called and since I don't have the release and nil stuff, there's a memory leak. In other words, will dealloc ever be called without viewDidUnload being called first? And the practical follow up to that is, if I alloc and set something in viewDidLoad, and I release it and set to nil in viewDidUnload, do I leave it out of dealloc, or do I do a defensive nil check in dealloc and release/nil it if it's not nil?

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  • Register/Set a new language default

    - by mongeta
    Hello, My app has some languages that the user can change whenever wants. The problem is that always uses the current device language selected, so at least my localizable strings are working as expected, but no matter wich language I set, I'm getting alwats the default selected of the device. Where I have to call this code? [[NSUserDefaults standardUserDefaults] registerDefaults: [NSDictionary dictionaryWithObject:[NSArray arrayWithObjects:@"ca", @"en", nil] forKey:@"AppleLanguages"]]; Currently I'm calling from the AppDelegate implementation file: - (void)applicationDidFinishLaunching:(UIApplication *)application { Thanks, r.

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  • Problem with writeData

    - by zp26
    Hi, I have a problem with my code. I want to create a XML file like this: <name>myName<name> <x>myX<x> <y>myY<y> <z>myZ<z> but my file is: <name>myName<name><x>myX<x><y>myY<y><z>myZ<z> Can i have this text formatting? This is my code: -(void)salvataggioInXML:(NSString*)name:(float)x:(float)y:(float)z{ NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectoryPath = [paths objectAtIndex:0]; NSString *filePath = [documentsDirectoryPath stringByAppendingPathComponent:@"filePosizioni.xml"]; NSFileHandle *myHandle = [NSFileHandle fileHandleForUpdatingAtPath:filePath]; [myHandle seekToEndOfFile]; NSString *tagName = [NSString stringWithFormat:@"<name>%@<name>", name]; NSString *tagX = [NSString stringWithFormat:@"<x>%f<x>", name]; NSString *tagY = [NSString stringWithFormat:@"<y>%f<y>", name]; NSString *tagZ = [NSString stringWithFormat:@"<z>%f<z>", name]; NSData* dataName = [tagName dataUsingEncoding: NSASCIIStringEncoding]; NSData* dataX = [tagX dataUsingEncoding: NSASCIIStringEncoding]; NSData* dataY = [tagY dataUsingEncoding: NSASCIIStringEncoding]; NSData* dataZ = [tagZ dataUsingEncoding: NSASCIIStringEncoding]; [myHandle writeData:dataName]; NSLog(@"writeok"); [myHandle seekToEndOfFile]; [myHandle writeData:dataX]; NSLog(@"writeok"); [myHandle seekToEndOfFile]; [myHandle writeData:dataY]; NSLog(@"writeok"); [myHandle seekToEndOfFile]; [myHandle writeData:dataZ]; NSLog(@"writeok"); [myHandle seekToEndOfFile]; NSLog(@"zp26 %@",filePath); }

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  • NSScanner scanFloat returning unexpected results

    - by E-Madd
    I'm trying to build a UIColor from a comma-delimited list of values for RGB, which is "0.45,0.53,0.65", represented here by the colorConfig object... NSScanner *scanner = [NSScanner scannerWithString:colorConfig]; [scanner setCharactersToBeSkipped:[NSCharacterSet characterSetWithCharactersInString:@"\n, "]]; float red, green, blue; return [UIColor colorWithRed:[scanner scanFloat:&red] green:[scanner scanFloat:&green] blue:[scanner scanFloat:&blue] alpha:1]; But my color is always coming back as black. So I logged the values to my console and I'm seeing Red = -1.988804, Green = -1.988800, Blue = -1.988796 What am I doing wrong?

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  • How can I create a transparent tableview with each cells being transparent instead of showing white

    - by wolverine
    I tried all this inside - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 1.tableView.backgroundColor = [UIColor clearColor]; 2.cell.backgroundColor = [UIColor clearColor]; 3.cell.contentView.backgroundColor = [UIColor clearColor]; It only responds to the 1st line and makes the background a translucent kind of black. What should I do to get 100% transparency?

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  • UIAlertView clickedButtonAtIndex with presentModalViewController

    - by Vivas
    Hi, I am trying to call a view via presentModalViewController from a UIAlertView button. The code is below, the NSlog is displayed in the console so I know that code execution is indeed reaching that point. Also, there are no errors or anything displayed: - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex != [alertView cancelButtonIndex]) { NSLog(@" The username is: %@ AND the password is: %@ ",textField.text,passTextField.text); // do some logic in here later CompanyViewController *companyViewController = [[[CompanyViewController alloc] initWithNibName:@"CompanyViewController" bundle:nil] autorelease]; [self presentModalViewController:companyViewController animated:YES]; } [textField resignFirstResponder]; [passTextField resignFirstResponder]; } * Edit: The method above belongs to a UIViewController. Below is the interface file: @interface testingViewController : UIViewController <UIAlertViewDelegate, UITextFieldDelegate> { UITextField *textField; UITextField *passTextField; } @property (nonatomic, retain) UITextField *textField; @property (nonatomic, retain) UITextField *passTextField; @property (readonly) NSString *enteredText; @property (readonly) NSString *enteredPassword; @end Any help is appreciated.

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  • cover/image that will hide a UIButton, but still let it be touched

    - by Sam Jarman
    Any ideas on how to create a cover that has alpha 100 but is able to let a button behind it be touched, and an action to be called. i dont want to apply the action to the cover, nor change the buttons image - as a convaluted set up is required for each one. any ideas? what im after is effective not a see-through button, but a touch through button... Cheers in advance guys sam

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  • How do I make a custom delegate protocol for a UIView subclass?

    - by timothy5216
    I'm making some tabs and I want to have my own delegate for them but when I try to send an action to the delegate nothing happens. I also tried following this tutorial: link text But it doesn't work for me :( Here is my code: TiMTabBar.h @protocol TiMTabBarDelegate; @interface TiMTabBar : UIView { id<TiMTabBarDelegate> __delegate; ... int selectedItem; ... } //- (id)init; - (id)initWithDelegate:(id)aDelegate; - (void)setSelectedIndex:(int)item; .. @property (nonatomic) int selectedItem; @property(assign) id <TiMTabBarDelegate> __delegate; .. ... @end @protocol TiMTabBarDelegate<NSObject> //@optional - (void)tabBar:(TiMTabBar *)_tabBar didSelectIndex:(int)index; @end TiMTabBar.m: #import "TiMTabBar.h" ... @interface NSObject (TiMTabBarDelegate) - (void)tabBar:(TiMTabBar *)_tabBar didSelectIndex:(int)index; @end @implementation TiMTabBar @synthesize selectedItem; @synthesize __delegate; ... /* - (id)init { ... return self; } */ - (id)initWithDelegate:(id)aDelegate; { //[super init]; __delegate = aDelegate; return self; } - (void)awakeFromNib { //[self init]; //[self initWithDelegate:self]; ... } - (void)setSelectedIndex:(int)item { selectedItem = item; if (self.__delegate != NULL && [self.__delegate respondsToSelector:@selector(tabBar:didSelectIndex:)]) { [__delegate tabBar:self didSelectIndex:selectedItem]; } ... if (item == 0) { ... } else if (item == 1) { ... } else if (item == 2) { ... } else if (item == 3) { ... } else if (item == 4) { ... } else { ... } } /* - (void)tabBar:(TiMTabBar *)_tabBar didSelectIndex:(int)index; { //[delegate tabBar:self didSelectIndex:index]; //if (self.delegate != NULL && [self.delegate respondsToSelector:@selector(tabBar:didSelectIndex:)]) { //[delegate tabBar:self didSelectIndex:selectedItem]; //} NSLog(@"tabBarDelegate: %d",index); } */ @end The delegate only works works inside itself and not in any other files like: @interface XXXController : UIViewController <TiMTabBarDelegate> { ... ... IBOutlet TiMTabBar *tabBar; ... } ... @end XXXController.m: #import "XXXController.h" #import <QuartzCore/QuartzCore.h> @implementation XXXController - (void)viewDidLoad { [super viewDidLoad]; [self becomeFirstResponder]; ... tabBar = [[TiMTabBar alloc] initWithDelegate:self]; //tabBar.__delegate = self; ... } #pragma mark TiMTabBar Stuff - (void)tabBar:(TiMTabBar *)_tabBar didSelectIndex:(int)index; { NSLog(@"Controller/tabBarDelegate: %d",index); } @end None of this seems to work in XXXController. Anyone know how to make this work?

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  • Why is UIControlTouchUpInside UNDEFINED?

    - by munchine
    I've got a simple question but it has got me confounded. The code below gets an UNDEFINED error for UIControlTouchUpInside. What do I need to include or import? If I comment out the line, it works. So that means forState:UIControlStateNormal is defined. I'm new so hope you can help. UIButton * button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button setTitle:@"Accept?" forState:UIControlStateNormal]; [button addTarget:self action:@selector(acceptTapped) forControlEvents:UIControlTouchUpInside];

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  • How can I set a highlighted image on a table view cell?

    - by nevan
    I've followed the code in Apple's AdvancedTableViewCells and built a table view with a background image for cells. Now I want to change it so that instead of the blue highlight colour, it shows a darker version of my image. What are the steps I need to follow to do this? I'm using a UITableViewCell subclass with a custom NIB. My background image is implemented as the cell.backgroundView. The steps I've take so far are: Change the selectionStyle of the cell to "None" Set the Highlight colour on my UILabel subviews to a light colour Create a darker version of my background as a separate image Override setSelected: animated: I'm wondering about the next steps.

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  • Objective-C : Member variable is losing reference between method calls.

    - by Winston
    Hello, I've been having with an objective-c class which appears to be losing its pointer reference between methods of the same class. In the MyTableViewController.h file, I declare: @interface SettingsTableViewController : UITableViewController <UITextFieldDelegate>{ OCRAppDelegate *delegate; } MyTableViewController.m file - (id) init { self = [ super initWithStyle: UITableViewStyleGrouped ]; delegate = [(OCRAppDelegate *)[[UIApplication sharedApplication] delegate] retain]; } The problem is when the "MyTableViewController" view appears again and a different method is executed within that same class, the delegate pointer (which was assigned during the init method) is no longer there. I tried to retain, but to no avail. Would anyone know why this is, it seems like perhaps it is a fundamental Objective-C issue which I am missing. Appreciate your help. Thanks, Winston

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  • How to remove view from window?

    - by Wayfarer
    I am using Cocos2D for my main framework. In some cases, I want Cocos2D to load a nib file and have that be the view: window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; TargetPlayerViewController *myController = [[TargetPlayerViewController alloc]initWithNibName:@"TargetPlayerViewController" bundle:nil]; [window addSubview:[myController view]]; [window makeKeyAndVisible]; This works as expected, and shows the TargetPlayerViewController. Wonderful! What I need to know is: once that view has been loaded, how can I have the view remove itself? I've tried a few different ways, but all of them result in the program crashing. To test I have a button on the view set up which triggers this method: - (IBAction)GTFOnow:(id)sender { NSLog(@"GFTO"); window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; //[self.view removeFromSuperview]; //[window makeKeyAndVisible]; } In this method the view should remove itself from the view so I can go back to the Cocos2D. How do I do this?

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  • NSURLConnectionDelegate connection:didReceiveData not working

    - by Shibin Moideen
    Hi All, I need some help regarding the NSURLConnectionDelegate method. - (void)startDownload { NSString *URLString = [NSString stringWithFormat:appRecord.imageURLString]; NSURL *url = [NSURL URLWithString:URLString]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; imageConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; if(imageConnection) { activeDownload = [NSMutableData data]; } } I am using this method to initiate the NSURLConnection, but the - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data is not calling.. Need Help Thanks in advance, Shibin

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  • Using the iPhones Multi-Touch Keyboard Search Button

    - by senfo
    I have a regular text field on a view and I'd like to make use of the search button on the iPhones keyboard. For the life of me, I can't figure out how to do this. There doesn't seem to be any event exposed that I can wire up that specifically relates to the search button on the keyboard. I've googled around, but I also haven't found anything related to this subject.

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  • UIView transparency shows how the sausages are made!

    - by quixoto
    I have a UIView container that has two UIImageViews inside it, one partially obscuring the other (they're being composed like this to allow for occasional animation of one "layer" or another. Sometimes I want to make this container 50% alpha, so what the users sees fades. Here's the problem: setting my container view to 50% alpha makes all my subviews inherit this as well, and now you can see through the first subview into the second, which in my application has a weird X-Ray effect that I'm not looking for. What I'm after, of course, is for what the user currently sees to become 50% transparent-- the equivalent of flattening the visible view into one bitmap, and then making that 50% alpha. What are my best bets for accomplishing this? Ideally would like to avoid actually, dynamically flattening the views if I can help it, but best practices on that welcome as well. Am I missing something obvious? Since most views have subviews and would run into this issue, I feel like there's some obvious solution here. Thanks!

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  • get lattitude and longitude of a place against its zipcode

    - by yunas
    Hello i have used the following code to get the location of the particular place on map using the following piece of code NSString * urlString = [[NSString alloc] initWithFormat:@"http://maps.google.com/maps/geo?key=%@&output=xml&q=%@",GoogleMapsAPIKey,[placeName stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; result: <?xml version="1.0" encoding="UTF-8" ?> <kml xmlns="http://earth.google.com/kml/2.0"><Response> <name>postdam</name> <Status> <code>200</code> <request>geocode</request> </Status> <Placemark id="p1"> <address>Potsdam, Germany</address> <AddressDetails Accuracy="4" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><Country><CountryNameCode>DE</CountryNameCode><CountryName>Deutschland</CountryName><AdministrativeArea><AdministrativeAreaName>Brandenburg</AdministrativeAreaName><SubAdministrativeArea><SubAdministrativeAreaName>Potsdam</SubAdministrativeAreaName><Locality><LocalityName>Potsdam</LocalityName></Locality></SubAdministrativeArea></AdministrativeArea></Country></AddressDetails> <ExtendedData> <LatLonBox north="52.4513968" south="52.3424614" east="13.1866602" west="12.9305414" /> </ExtendedData> <Point><coordinates>13.0586008,52.3969627,0</coordinates></Point> </Placemark> </Response></kml> but now i want to get the information agianst the zipcode how to do that using the maps.google.com ???

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  • How to set probability for a targetSprite shooting accuracy in shooting game ?

    - by srikanth rongali
    Hi, My code is ion cocos2D. I have written code for generating the bullets from the enemy gun for every 0.3seconds. The enemySprite is in right side of the screen in (land scape mode) at winSize.height/2. the bullet starts from the same point and reach the player's end. I used rand() to generate y-coordinate for the bullet to hit on player side. Now, if the bullet bounded rectangle meets the player bounded rectangle the enemy won. If it misses enemy shoots again after 0.3 seconds. Every thing is fine up to here for me. But I have 10 enemies and each have accuracy of hitting player of probabilities ranging from 0.80 to 1.0. First enemy probability is .80 and 10 enemy's is 1.0. How can I adjust the probability for enemy such that it runs according to its probability. Player also hits the enemy.

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  • Add double tap action (presentModalViewController) to UISCOLLVIEW

    - by R.J.
    I have been wrestling this issue for a while now and cannot seem to get the following "touchesEnded" method to execute within a UISCROLLVIEW. I have read on many of the forums that UISCROLLVIEW will take control of all touch events unless it is subclassed, but I cannot seem to get the code right (still new to the SDK). Basically I have a scrollview made uo with several UIIMAGEVIEW's and currenlty have scrolling with paging (much like the photo app). I have been studying the SCROLLING MADDNESS example without success. All I want to do is anywhere in the UISCROLLVIEW have the user double tap to presentModalViewController back to my info page (i.e.) (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { NSSet *allTouches = [event allTouches]; switch ([allTouches count]) { case 1: {// One finger touch UITouch *touch = [[allTouches allObjects] objectAtIndex:0]; if ([touch tapCount] == 2) {InfoButtonViewController *scroll = [[InfoButtonViewController alloc] initWithNibName:nil bundle:nil]; scroll.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:scroll animated:YES]; [scroll release]; } } } } Any code assistance would be greatly appreciated. The UISCROLLVIEW is implemented as follows (let me know if I need to provide additional details). Thank you in advance... MyViewController.h @interface MyViewController : UIViewController { } @end

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  • drawing images and lines over UIScrollView

    - by Jorge
    I'm programming an app in which one of the ViewControllers is showing an UIScrollView that shows an image. I'd like to load an image (pushpin in png format) and draw it (and delete it) in some points of the UIScrollView image. I'd also would like to draw bezier paths in that image (and deleting them). I've programmed several apps but this is the first time I face graphic programming and don't know where to start from. Any suggestions? Thanks!

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  • Clearing "may not respond" warnings for UIView and UIViewController

    - by user284681
    In an iPad app, I'm using a custom subclass of UIView with UIViewController. Here's the view header: @interface pdfView : UIView { CGPDFDocumentRef doc; } -(void)setDoc:(CGPDFDocumentRef)newDoc; @end And here's the controller header: @interface iPadPDFTestViewController : UIViewController { CGPDFDocumentRef doc; } - (void)loadPDF; @end Part of the controller implementation: - (void)viewDidLoad { [super viewDidLoad]; [self loadPDF]; [self.view setDoc:doc]; } In Interface Builder, I've set the view object to use the class pdfView. At compilation, [self.view setDoc:doc]; gives the warning "'UIView' may not respond to '--setDoc'." I'm guessing that this warning appears because the compiler thinks it's looking at UIView (which does not implement the setDoc method) instead of pdfView. But why does it think that? And how can I tell it what class it's really looking at, so as to clear the warning?

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