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  • How to Hide the UIbarbutton on navigation bar

    - by abhimanyu jindal
    hi i have created a bar button which displays Done when the editing of the text view starts. what actually i need that when i press the done button then the the editable property of textview will become false and the done button hides. i am done with the first part but how to hide the bar button? please help..

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  • Limit number of charchters in uitextview !

    - by hib
    Hello All , I am giving a text view to tweet some string . I am applying the following method to restrict the number of characters to 140 in length. - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{ if([text isEqualToString:@"\b"]){ DLog(@"Ohoooo"); return YES; }else if([[textView text] length] > 140){ return NO; } return YES; } The code is working nicely except the first condition that backspace is not working. suppose that I have reached the limit of 140 characters so that the method will give me false and the user can not insert more characters but after that when I try to delete some characters the text view behave as it is disabled . So the question how do delete characters from textview.text or re-enable the text view .

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  • UIButton doesn't listen to content mode setting?

    - by Dan Ray
    firstButton is a UIButton of type Custom. I'm programmatically putting three of them across each cell of a table, thusly: [firstButton setImage:markImage forState:UIControlStateNormal]; [firstButton setContentMode:UIViewContentModeScaleAspectFit]; [cell.contentView addSubview:firstButton]; Elsewhere, I'm telling it to clipToBounds. What I get is a crop of the center square of the image, rather than an aspect-scaled rendering of it. I've tried this lots of ways, including setting the mode property on firstButton.imageView, which also doesn't seem to work.

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  • Passing a NSArray between classes

    - by Althane
    So, my second question based off of this application I'm teaching myself Objective C with. I have a Data Source class, which for now looks mostly like: - (id) init { if (self = [super init]){ listNames = [[NSArray alloc] initWithObjects: @"Grocery", @"Wedding", @"History class",@"CS Class",@"Robotics",@"Nuclear Sciences", @"Video",@"Library",@"Funeral", nil]; NSLog(@"%@",listNames); } return self; } The .h looks as follows: @interface MainViewDataSource : NSObject { NSArray *listNames; } @property (nonatomic, retain) NSArray *listNames; -(NSArray *)getListNames; So that's where I make it. Now the problem is that when I try to get the array listNames, it returns nothing. The following piece: NSArray* data = [listData listNames]; Is supposed to put the information in listNames in data, but... isn't. Since I'm rather used to JAva, I'm betting this is an Objective C quirk that I don't know how to fix. Which is why I'd be here asking for help. What's the proper way to pass around NSArrays like this?

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  • How to dismiss keyboard for UITextView with return key?

    - by iPhoney
    In IB's library, the introduction tells us that when the return key is pressed, the keyboard for UITextView will disappear. But actually the return key can only act as '\n'. I can add a button and use [txtView resignFirstResponder] to hide the keyboard. But is there a way to add the action for the return key in keyboard so that I needn't add another button.

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  • Parsing error when using getSearchResultsForQuery of MGTwitterEngine

    - by deep8981
    Hi everyone I am doing a search using getSearchResultsForQuery method and i get searchresult too but when i try to print the parsed data i dont get text of all the tweets i am doing this [twitterEngine getSearchResultsForQuery:@"#joke" sinceID:twitterUserId startingAtPage:1 count:5]; and below is the result in console and it shows that i do get data properly but after parsing it does not parse properly.I have not done any change in parsing can anyone say why i am getting this? {"results":[{"profile_image_url":"http://a1.twimg.com/profile_images/580724970/pro_normal.jpg","created_at":"Wed, 21 Apr 2010 19:06:52 +0000","from_user":"Kousani","metadata":{"result_type":"recent"},"to_user_id":null,"text":"#ipl3 has hit hard all other General Entertainment Channels. If this continues every year, may be I will learn play cricket! :D #joke","id":12592706500,"from_user_id":13391246,"geo":null,"iso_language_code":"en","source":"<a href="http://www.tweetdeck.com" rel="nofollow">TweetDeck</a>"},{"profile_image_url":"http://a3.twimg.com/profile_images/815058343/iphone_1_059_normal.JPG","created_at":"Wed, 21 Apr 2010 19:00:59 +0000","from_user":"anamou","metadata":{"result_type":"recent"},"to_user_id":null,"text":"comedyclipsblog: Recent research has shown that six out of seven dwarves aren't happy #joke","id":12592456010,"from_user_id":7635571,"geo":null,"iso_language_code":"en","source":"<a href="http://echofon.com/" rel="nofollow">Echofon</a>"},{"profile_image_url":"http://a1.twimg.com/profile_images/636112472/Jane_New_normal.jpg","created_at":"Wed, 21 Apr 2010 18:55:49 +0000","from_user":"janeprinsep","metadata":{"result_type":"recent"},"to_user_id":20741695,"text":"@grahamtcousins DON'T DOOOOOOO ITTTTT!!!!! #joke","id":12592234721,"from_user_id":74969091,"to_user":"grahamtcousins","geo":null,"iso_language_code":"en","source":"<a href="http://www.tweetdeck.com" rel="nofollow">TweetDeck</a>"},{"profile_image_url":"http://a1.twimg.com/profile_images/779334170/sander_normal.jpg","created_at":"Wed, 21 Apr 2010 18:53:55 +0000","from_user":"SndR22","metadata":{"result_type":"recent"},"to_user_id":null,"text":"RT @MocroDeluxe: Willen jullie lachen?- kom met een #joke dan!","id":12592155790,"from_user_id":85863646,"geo":null,"iso_language_code":"nl","source":"<a href="http://ubertwitter.com" rel="nofollow">UberTwitter</a>"},{"profile_image_url":"http://a1.twimg.com/profile_images/513318990/1257454275_package_toys_normal.png","created_at":"Wed, 21 Apr 2010 18:53:33 +0000","from_user":"Fun_Jokes_Video","metadata":{"result_type":"recent"},"to_user_id":null,"text":"#joke What's Clintons new nick name?: Q. What's Clintons new nick name?\nA. Drippy Dick http://bit.ly/bZWSlJ","id":12592141067,"from_user_id":76430125,"geo":null,"iso_language_code":"en","source":"<a href="http://twitterfeed.com" rel="nofollow">twitterfeed</a>"}],"max_id":12592706500,"since_id":47543983,"refresh_url":"?since_id=12592706500&q=%23joke","next_page":"?page=2&max_id=12592706500&rpp=5&q=%23joke","results_per_page":5,"page":1,"completed_in":0.039389,"warning":"since_id removed for pagination.","query":"%23joke"} 2010-04-22 00:45:53.319 Twitter-Facebook[2090:20b] Got search results for FF1D610A-499C-41B6-B0BA-5D94989F9CF0: ( { "created_at" = 1271876812; "from_user" = Kousani; "profile_image_url" = "http://a1.twimg.com/profile_images/580724970/pro_normal.jpg"; "result_type" = recent; "source_api_request_type" = 35; }, { "created_at" = 1271876459; "from_user" = anamou; "profile_image_url" = "http://a3.twimg.com/profile_images/815058343/iphone_1_059_normal.JPG"; "result_type" = recent; "source_api_request_type" = 35; }, { "created_at" = 1271876149; "from_user" = janeprinsep; "profile_image_url" = "http://a1.twimg.com/profile_images/636112472/Jane_New_normal.jpg"; "result_type" = recent; "source_api_request_type" = 35; }, { "created_at" = 1271876035; "from_user" = SndR22; "profile_image_url" = "http://a1.twimg.com/profile_images/779334170/sander_normal.jpg"; "result_type" = recent; "source_api_request_type" = 35; }, { "created_at" = 1271876013; "from_user" = "Fun_Jokes_Video"; "profile_image_url" = "http://a1.twimg.com/profile_images/513318990/1257454275_package_toys_normal.png"; "result_type" = recent; "source_api_request_type" = 35; }, { "completed_in" = 0; "from_user_id" = 76430125; geo = ; id = 12592141067; "iso_language_code" = en; "max_id" = 12592706500; "next_page" = "?page=2&max_id=12592706500&rpp=5&q=%23joke"; page = 1; query = "%23joke"; "refresh_url" = "?since_id=12592706500&q=%23joke"; "results_per_page" = 5; "since_id" = 47543983; source = "twitterfeed"; "source_api_request_type" = 35; text = "#joke What's Clintons new nick name?: Q. What's Clintons new nick name?\nA. Drippy Dick http://bit.ly/bZWSlJ"; "to_user" = grahamtcousins; "to_user_id" = ; warning = "since_id removed for pagination."; } ) 2010-04-22 00:45:53.320 Twitter-Facebook[2090:20b] TEXT is #joke What's Clintons new nick name?: Q. What's Clintons new nick name? A. Drippy Dick http://bit.ly/bZWSlJ

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  • How to mask a UIView

    - by Thomas Joos
    hi guys, I'm working on an app where I draw a UIView via code and I fill it with a UIColor. Next thing I want to load a mask.png file (no transparancy, just black and white) and mask the UIView to change its visual appearance. Any idea how to do this?

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  • UIWebView action sheet popup on a link - customization

    - by alided
    Hi, I'm trying to replace or add more options into the action sheet popup in uiwebview. When touching long touch on a link standard uiwebview popup shows up. I saw some apps which did it, but i can't figure it out. the standard options are : open or copy, i want to hide copy and add send email. Any help ? Thanks Albert

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  • Playing videos in UIWebView broken in iOS4?

    - by rforte
    I have an app that's worked since version 2.0 of the SDK where I create and add a UIWebView and then load the URL of an .mov to play a movie. Ever since the early version of the 4.0 beta up until the 4.0 GM this has stopped working. When I load a movie now I get the following error: :Plug-in handled load" and the movie never displays. Is this a known issue? Am I doing something wrong in 4.0?

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  • Customizing UIPickerView

    - by Raj
    Hi all, I have a requirement where UIPickerView should be customized. The picker view should look something like this: The application which has customized the pickerView similarly is: http://itunes.apple.com/us/app/convert-the-unit-calculator/id325758140?mt=8 I have tried removing the default pickerView selection bar by resetting the property showsSelectionIndicator of UIImagePicker and adding a overlay view. But the problem is, the overlay view should be transparent so that the wheel behind it is visible. But the other application somehow does it even though the selection bar is not transparent. Any ideas on how to achieve this feat? Thanks and Regards, Raj

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  • How to resize image to fit UITableView cell?

    - by stefanB
    How to fit UIImage into the cell of UITableView, UITableViewCell (?). Do you addSubview to cell or is there a way to resize cell.image or the UIImage before it is assigned to cell.image ? I want to keep the cell size default (whatever it is when you init with zero rectangle) and would like to add icon like pictures to each entry. Images are slightly bigger than the cell size (table row size). I think the code looks like this (from top of my head): UIImage * image = [[UIImage alloc] imageWithName:@"bart.jpg"]; cell = ... dequeue cell in UITableView data source (UITableViewController ...) cell.text = @"bart"; cell.image = image; What do I need to do to resize the image to fit the cell size? I've seen something like: UIImageView * iview = [[UIImageView alloc] initWithImage:image]; iview.frame = CGRectMake(...); // or something similar [cell.contentView addSubview:iview] The above will add image to cell and I can calculate the size to fit it, however: I'm not sure if there is a better way, isn't it too much overhead to add UIImageView just to resize the cell.image ? Now my label (cell.text) needs to be moved as it is obscured by image, I've seen a solution where you just add the text as a label: Example: UILabel * text = [[UILable alloc] init]; text.text = @"bart"; [cell.contentView addSubview:iview]; [cell.contentView addSubview:label]; // not sure if this will position the text next to the label // edited original example had [cell addSubview:label], maybe that's the problem Could someone point me in correct direction? EDIT: Doh [cell.contentview addSubview:view] not [cell addSubview:view] maybe I'm supposed to look at this: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = ...; CGRect frame = cell.contentView.bounds; UILabel *myLabel = [[UILabel alloc] initWithFrame:frame]; myLabel.text = ...; [cell.contentView addSubview:myLabel]; [myLabel release]; }

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  • UIImagePickerController image editing not working

    - by Greg Reichow
    I am having a problem with implementing UIImagePickerController. When the controller loads, it displays modally, and allows the user to select the image. Good so far. Yet, then when it moves to the editing phase, it often displays somewhat corrupted view (the image cropping box is halfway off the top of the screen) and their is no image. It does not crash, but all UI interaction is blocked. The strange part is that this only happens when I compile with Release settings. Under debug compile settings, the image editing works fine! I have tried checking for memory warnings during this time, but none are showing up. Here is the code calling the image picker controller for reference. When I use the camera (the first method), it always works fine. It is just when selecting images from the Library (called from the second method below) does it fail as described above. And again, only on release build, and with various different types of images. - (IBAction) showCameraController:(id)sender { self.imagePicker =[[UIImagePickerController alloc] init]; self.imagePicker.sourceType=UIImagePickerControllerSourceTypeCamera; self.imagePicker.delegate=self; self.imagePicker.allowsEditing=YES; [self presentModalViewController:self.imagePicker animated:YES]; } - (IBAction) showPictureAlbumController:(id)sender { self.imagePicker =[[UIImagePickerController alloc] init]; self.imagePicker.sourceType=UIImagePickerControllerSourceTypePhotoLibrary; self.imagePicker.delegate=self; self.imagePicker.allowsEditing=YES; [self presentModalViewController:self.imagePicker animated:YES]; } The delegate methods are properly implemented, yet, during the problem I am describing, the controller is not yet calling those methods. It is failing when displaying the editing screen before the user is able to select cancel or save. It is just locking up with no crash. Please help!

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  • Strange padding/margin when using UIWebView

    - by Nicsoft
    Hello, I am creating an app that is having a UIWebView which contains an advert. The size of the view is the same as the advert (image) itself. Still, there is a white margin/padding of some kind above and to the left of the image, inside the UIWebView. Check out the linked image: Also, I did link to the actual advert itself, you can check out the image loaded and view the source code there: Link to advert Any idea how I should remove the white padding? Thanks in advance!

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  • NSInvalidArgumentException: Illegal attempt to establish a relationship between objects in different

    - by iPhoneDollaraire
    I have an app based on the CoreDataBooks example that uses an addingManagedObjectContext to add an Ingredient to a Cocktail in order to undo the entire add. The CocktailsDetailViewController in turn calls a BrandPickerViewController to (optionally) set a brand name for a given ingredient. Cocktail, Ingredient and Brand are all NSManagedObjects. Cocktail requires at least one Ingredient (baseLiquor) to be set, so I create it when the Cocktail is created. If I add the Cocktail in CocktailsAddViewController : CocktailsDetailViewController (merging into the Cocktail managed object context on save) without setting baseLiquor.brand, then it works to set the Brand from a picker (also stored in the Cocktails managed context) later from the CocktailsDetailViewController. However, if I try to set baseLiquor.brand in CocktailsAddViewController, I get: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Illegal attempt to establish a relationship 'brand' between objects in different contexts' From this question I understand that the issue is that Brand is stored in the app's managedObjectContext and the newly added Ingredient and Cocktail are stored in addingManagedObjectContext, and that passing the ObjectID instead would avoid the crash. What I don't get is how to implement the picker generically so that all of the Ingredients (baseLiquor, mixer, garnish, etc.) can be set during the add, as well as one-by-one from the CocktailsDetailViewController after the Cocktail has been created. In other words, following the CoreDataBooks example, where and when would the ObjectID be turned into the NSManagedObject from the parent MOC in both add and edit cases? -IPD UPDATE - Here's the code: - (IBAction)addCocktail:(id)sender { CocktailsAddViewController *addViewController = [[CocktailsAddViewController alloc] init]; addViewController.title = @"Add Cocktail"; addViewController.delegate = self; // Create a new managed object context for the new book -- set its persistent store coordinator to the same as that from the fetched results controller's context. NSManagedObjectContext *addingContext = [[NSManagedObjectContext alloc] init]; self.addingManagedObjectContext = addingContext; [addingContext release]; [addingManagedObjectContext setPersistentStoreCoordinator:[[fetchedResultsController managedObjectContext] persistentStoreCoordinator]]; Cocktail *newCocktail = (Cocktail *)[NSEntityDescription insertNewObjectForEntityForName:@"Cocktail" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.baseLiquor = (Ingredient *)[NSEntityDescription insertNewObjectForEntityForName:@"Ingredient" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.mixer = (Ingredient *)[NSEntityDescription insertNewObjectForEntityForName:@"Ingredient" inManagedObjectContext:self.addingManagedObjectContext]; newCocktail.volume = [NSNumber numberWithInt:0]; addViewController.cocktail = newCocktail; UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:addViewController]; [self.navigationController presentModalViewController:navController animated:YES]; [addViewController release]; [navController release]; }

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  • Re-Apply currency formatting to a UITextField on a change event

    - by Jim Aldes
    Howdy all, I'm working with a UITextField that holds a localized currency value. I've seen lots of posts on how to work with this, but my question is: how do I re-apply currency formatting to the UITextField after every key press? I know that I can set up and use a currency formatter with: NSNumberFormatter *currencyFormatter = [[NSNumberFormatter alloc] init]; [currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; ... [currencyFormatter stringFromNumber:...]; but I don't know how to hook it up. For instance, if the value in the field reads "$12,345" and the user taps the "6" key, then the value should change to "$123,456". Which callback is the "correct" one to do this in (should I use textField:shouldChangeCharactersInRange:replacementString: or a custom target-action) and how do I use the NSNumberFormatter to parse and re-apply formatting to the UITextField's text property? Any help would be much appreciated! Thanks!

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  • adding tabbar to uiview (not tabbarcontroller) to switch views

    - by Pavan
    Hi, i added a Tab bar to my existing view called secondViewController where there are now 4 tab bar items using interface builder. This tab bar will allow the users to switch between views. This is what ive tried to do: If i use a tabbar controller, then a new view pops up and i dont want that. i simply want to be able to add a tab bar as ive done and carry on from there. i dont know how to actually connect it all up and make everything work together. This is what i understand: i have to make my current - secondViewController an tabbardelegate which is what ive done as shown @interface paddedDholViewController : UIViewController <AVAudioPlayerDelegate, UITabBarDelegate> { } then i understand that i have to add tabBar.delegate = self; for me to be able to detect the tabBar:didSelectItem: so i can then implement something like this - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if ([viewController.tabBarItem.title isEqualToString:@"FIRST"]) { NSLog(@"FIRST"); } else if ([viewController.tabBarItem.title isEqualToString:@"SECOND"]) { NSLog(@"SECOND"); } } to be able to switch between the views The thing is as ive said before i dont know how to implement all of this and how to connect everything up. can someone help me please. Thank you in advance

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  • Adding rows to UItableview and passing data between Viewcontrollers

    - by Jonathan
    I have a list of websites in a plist, when the app loads this populates a tableview (which is inside a navigation controller) But I have added an add button to the navigation bar and then created another View Controller to deal with inputting of the new website (Like Title and URL). It is very similar to how the contacts app looks. There is a table view and when you tap add, the add UI slides up. I have got all this working great so far. My Problem is what happens when the user taps Done. I can add the website to the plist (each website is a dictionary in the plist with 2 keys, atm) But then how do I tell the tableView to update? The table view has not been removed from the main window, just the add view has been added on top of the "screen". Another way of asking is, when you tap Save on Add a Contact screen: (not my image) How does the new contact's data (Xyz's data) get shown on the tableview?

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  • How do you adjust the frame or vertical alignment of a UIBarButtonItem contained by a UIToolbar inst

    - by akaii
    Horizontal positioning of UIBarButtonItems is no problem, I can simply pad the space with fixed/flexible space items. However, I can't seem to adjust the toolbar item vertically. UIToolbar has no alignment property, and UIBarButtonItem has no way of setting its frame. I need to do this because we're using a mix of custom icons created using initWithImage, and standard icons created with initWithBarButtonSystemItem. The custom icons aren't being centered properly (they're offset upwards, relative to the system icons, which are centered properly), so the toolbar looks awkward.

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  • XCode newb -- #include can't find my file

    - by morgancodes
    I'm trying to get a third party audio library (STK) working inside XCode. Along with the standard .h files, many of the implimentation files include a file called SKINI.msg. SKINI.msg is in the same directory as all of the header files. The header files are getting included fine, but the compiler complains that it can't find SKINI.msg. What do I need to do to get XCode to happily include SKINI.msg?

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  • Cocos2D Director Pause/Resume Issue

    - by Aditya
    I am trying to play a .gif animation in cocos2D. For this i am using the library glgif. Now, to display the animation i am pausing the Director, adding a subview to show the animation and after the animation is done i am resuming the Director. However, I am not able to resume the state of the Director and it shows blank. So I tried this without pausing and resuming this Director and it still did not work.I also tried detaching the director before tha animation and adding it back afterwards and even that did not work. So is there a way to pause/suspend the Director in the application and properly restore is back? Thanks. Code sample: [[Director sharedDirector] pause]; [[Director sharedDirector] detach]; AppDelegate *del = [[UIApplication sharedApplication] delegate]; [del.window addSubview:del.viewController.view]; [del.window makeKeyAndVisible]; // this is code to call glgif class and start anim. //code to resume the director AppDelegate *del = [[UIApplication sharedApplication] delegate]; [[Director sharedDirector] resume]; [[Director sharedDirector] attachInView:del.window]; MScene *m = [MScene node]; [[Director sharedDirector] replaceScene:m];

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  • UITextView w/ Syntax Highlighting

    - by Travis
    Is there a common library, parser, etc. for Cocoa or Cocoa-Touch that can take a chunk of text and do the proper syntax highlighting? As a simple example, I'd like to have a UITextView that has C/C++ syntax highlighting.

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  • Design patter to keep track UITableView rows correspondance to underlying data in constant time.

    - by DenNukem
    When my model changes I want to animate changes in UITableView by inserting/deleting rows. For that I need to know the ordinal of the given row (so I can construct NSIndexPath), which I find hard to do in better-than-linear time. For example, consider that I have a list of addressbook entries which are manualy sorted by the user, i.e. there is no ordering "key" that represents the sort order. There is also a corresponding UITableView that shows one row per addressbook entry. When UITableView queries the datasource I query the NSMUtableArray populated with my entries and return required data in constant time for each row. However, if there is a change in underlying model I am getting a notification "Joe Smith, id#123 has been removed". Now I have a dilemma. A naive approach would be to scan the array, determine the index at which Joe Smith is and then ask UITableView to remove that precise row from the view, also removing it form the array. However, the scan will take linear time to finish. Now I could have an NSDictionary which allows me to find Joe Smith in constant time, but that doesn't do me a lot of good because I still need to find his ordinal index within the array in order to instruct UITableView to remove that row, which is again a linear search. I could further decide to store each object's ordinal inside the object itself to make it constant, but it will become outdated after first such update as all subsequent index values will have changed due to removal of an object. So what is the correct design pattern to accurately reflect model changes in the UITableView in costant (or at least logarithmic) time?

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  • How do you hide/show UISearchBar's scope bar with animation?

    - by zekel
    I want to show no scope bar when the table is empty (before the search bar edits for the first time), no scope bar when it's editing, and finally show it when editing done. I know about the UISearchBarDelegate protocol, but I don't know how to show/hide the scope bar with animation. I know UISearchBar has setShowsScopeBar:, but no setShowsScopeBar:animated: the way it does for setShowsCancelButton:animated.

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