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  • UISegmentedControl - how to toggle between 2 UITableViews

    - by embedded
    I have a tab bar based application. What is the best way to toggle between 2 different UITableView views? Should I use a wrapper view and add those 2 views to it and depending on which segment was chosen I will show the correct view? Using only one tableView will not work because the layout is different between those 2 tableviews. Thanks

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  • How to do orientation rotation like built-in Calc app?

    - by Ray Wenderlich
    I'm trying to make an app that handles orientation/rotation similarly to the way the built-in Calc app does. If you check out that app, in portrait mode there's a normal calculator, and if you rotate to landscape mode there are additional buttons that appear to the left. I can't figure out how to do this by setting the autosize masks. The problem is the "normal" calculator view is 320px wide in portrait mode, but actually shrinks to around 240px in landscape mode to fit the additional controls. I've seen examples like the AlternateViews sample app that have two different view controllers (one for portrait and one for landscape), but they don't seem to animate the transitions between the views nicely like the Calc app does. I've also tried setting the frames for the views manually in willAnimateSecondHalfOfRotationFromInterfaceOrientation, but it doesn't seem to look "quite right" and also I'm not certain how that works with the autoresize mask. Any ideas how this is done? Thanks!

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  • Displaying a "Loading..." screen in a UITableView like the AppStore App...

    - by Mugunth Kumar
    the App Store app and fairly a lot many apps display a view that says "Loading.." while the content is being retrieved. How can we do this? Should I remove the UITableView and call addSubView and then once the data is available, add the tableview back? Or is there any other shortcut? If my question is not clear, please see this image... http://www.flickr.com/photos/mugunthkumar/3774575906/ I want to know how to create a temporary loading view like this till my tableview contents are ready...

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  • What method of UIView gets called when instantiated from a NIB?

    - by retailevolved
    I have a simple custom view that is connected via outlet to a NIB. For this particular view, there are actions that I would like to perform on the view when it is initialized, no matter what NIB it is on. Trouble is, neither the (id)init or the (id)initWithFrame:(CGRect)frame methods are getting called on the custom view. Which method gets called on a UIView when it is instantiated from a NIB? I would just use the view controller and viewDidLoad method except that this particular view appears on a lot of different NIBs.

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  • How to display complex object in debugger?

    - by 4thSpace
    I'd like to display the contents of the property myarray, from the following singleton: [Session sharedManager].myarray I've tried these: po [Session sharedManager]. myarray po [[Session sharedManager] myarray] but always get this error: A syntax error near end of expression. Any suggestions?

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  • Is it possible to Prevent TO fileld to be edit in MFMailComposeViewController

    - by mihirpmehta
    in my Application i am using MFMailComposeViewController for emails... I am Adding to Field in it programmaticly... I want To prevent user to edit the TO field, User can't change TO field's email address... I am not able to find neither i know if it is possible or not It is not necessary but still code is NSArray *arr = [NSArray arrayWithObject:Emailstr]; MFMailComposeViewController* controller = [[MFMailComposeViewController alloc] init]; controller.mailComposeDelegate = self; [controller setToRecipients:arr]; [controller [controller setMessageBody:@"Hello there." isHTML:NO]; [self presentModalViewController:controller animated:YES];

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  • Is there a way to detect non-movement (touch events) ?

    - by hyn
    Is there a way to detect a finger's non-movement by using a combination of UITouch events? The event methods touchesEnded and touchesCancelled are only fired when the event is cancelled or the finger lifted. I would like to know when a touch has stopped moving, even while it is still touching the screen.

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  • How can I access the int values of an object in an NSMutableArray?

    - by Daniel
    I try to access some values in a NSMutableArray I created, but I only get some numbers (address?) if I try to access them. I was able to initialize an array and can add and change objects with [myNSMutableArray addObject:[NSNumber numberWithInt:10]] and [myNSMutableArray replaceObjectAtIndex:0 withObject:[NSNumber numberWithInt:47] I also can print the value at index [0] with NSLog(@"%@", [myNSMutableArray objectAtIndex:0]); and I get 47 as expected. But how can I access the integer value of the object in the array so I can save it tomyIntValue?

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  • queued view updates not happening when performSelector afterDelay:0 used

    - by JosephH
    Hi all, I have an app that performs some calculations based on data arriving on a socket or local user interaction. I want to show an 'activity spinner' whilst the calculation happens. spinner = [[UIActivityIndiactorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; [spinner setCenter:self.view.center]; [self.view addSubview:spinner]; [spinner startAnimating]; [self performSelector:@selector(doCalcs) withObject:nil afterDelay:0]; This works well, except in the case where the code is run as a result of a message arriving over the network. I'm using http://code.google.com/p/cocoaasyncsocket/ to handle sockets and the code is running in the onSocket:didReadData:withTag: method. 'doCalcs' takes a few seconds. The spinner doesn't appear whilst it's running. If I change afterDelay:0 to afterDelay:1 then the spinner does appear the whole time doCalcs is running, but with the downside that it takes an extra second. So it seems the code is all correct, but for whatever reason the spinner isn't getting a chance to get on screen before doCalcs runs. Any suggestions would be most welcome.

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  • Display keyboard above toolbar?

    - by Sheehan Alam
    I have a view with a bottom toolbar and a UIWebview that is loading an HTML page with some textboxes. Is there anyway when the user clicks on a textbox, the keyboard appears above the toolbar, that way it doesn't hide its buttons?

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  • Image animation over CGContextDrawPDFPage

    - by BittenApple
    I have a pdf page displayed with CGContextDrawPDFPage. I want to keep this page shown and have an image slide in from top over this page, just as it can be seen in the iBooks application. It's a book, the sliding image is a bookmark that slides in when you are about to close the book. What is the best way to go about implementing this?

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  • Converting &amp; to & in Objective-C

    - by nbojja
    Hi All, I have a URL string in the following format. http://myserver.com/_layouts/feed.aspx?xsl=4&amp;web=%2F&amp;page=dda3fd10-c776-4d69-8c55-2f1c74b343e2&amp;wp=476f174a-82df-4611-a3df-e13255d97533 I want to replace &amp; with & in the above URL. My result should be: http://myserver.com/_layouts/feed.aspx?xsl=4&web=%2F&page=dda3fd10-c776-4d69-8c55-2f1c74b343e2&amp;wp=476f174a-82df-4611-a3df-e13255d97533 Can someone post me the code to get this done? Thanks

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  • How can I make text in a UILabel non-centered?

    - by Sheehan Alam
    I have a UILabel: descriptionLabel = [[UILabel alloc] initWithFrame:CGRectMake(200, 30, 130, 150)]; [descriptionLabel setFont:[Utils getSystemFontWithSize:14]]; [descriptionLabel setBackgroundColor:[UIColor clearColor]]; [descriptionLabel setTextColor:[UIColor whiteColor]]; descriptionLabel.numberOfLines = 0; descriptionLabel.lineBreakMode = UILineBreakModeWordWrap; [self addSubview:descriptionLabel]; If the text is only 1 line long it will appear in the middle of the label. Is there anyway I can have the text display from the top left corner of the label instead of the middle center?

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  • UItextView in UITableview, autocorrection bubble not visible

    - by f0rz
    Hello! I have a UITableView with custom cells. The cells containing one UITextView each and the cell is resizing during user type text in the TextView. My problem is when user is on first row in a TextView autocorrection bubbles wont be visible in the current cell. Is there any workaround or can someone point me to another direction?

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  • WebView not responding when called from a method

    - by AragornSG
    I have an app with tabbar and webview. I'm trying to make the app come back to default url each time user taps the bar. Right now I'm intercepting taps and launching a method, however it's not affecting my webview. The same syntax for calling webview from awakeFromNib works, so I don't have a clue what's up. I suspect it's something to do with how I call the method, but I don't know what. Here is the code: #import "SecondViewController.h" @implementation SecondViewController - (void)awakeFromNib { NSString *loadURL = [NSString stringWithFormat:@"http://pageurl"]; // [secondView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:loadURL]]]; SecondViewController *ptr = [[SecondViewController alloc] init]; [ptr goToPage]; } - (void) goToPage { NSLog(@"go to page"); NSString *newURL = [NSString stringWithFormat:@"http://pageurl"]; [secondView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:newURL]]]; } Thanks fot your help!

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  • textFieldShouldBeginEditing + UIKeyboardWillShowNotification + OS 3.2

    - by user193545
    I have multiple textfields on a UIView. I resign for a previous textField in textFieldShouldBeginEditing method, where following sequence of events are performed UIKeyboardWillHideNotification is received corresponding to that field where the keyboard for the previous field is hidden. the method textFieldShouldBeginEditing returns a YES and then UIKeyboardWillShowNotification is received where the keyboard for the current field is displayed. However, in OS 3.2 even though textFieldShouldBeginEditing returns a YES, UIKeyboardWillShowNotification for the current field is not received. The logic works for OS < 3.2 Any ideas where I might be doing wrong?

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  • How to format date from string?

    - by 4thSpace
    I have a string with this value: 2010-05-13 23:17:29 I'd like to format it and am using the following code: NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; formatter.dateStyle = NSDateFormatterMediumStyle; NSDate *formattedDate = [formatter dateFromString:dateString]; [formatter release]; When the debugger reaches the release line, formattedDate shows "invalid CFStringRef" and Cannot access memory at address 0x0 Any ideas what I'm doing wrong?

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  • Pushing UIViewController onto a UINavigationController

    - by Gregg
    The other day I asked about using a UINavigationController as a child of a UIViewController. I got that working via the answer. Now what I'm trying to do is push a controller onto the nav stack. When a table cell is touched, I do the following: - (void) showSetup { NSLog(@"Showing Setup"); SetupViewController *controller = [[SetupViewController alloc]initWithNibName:@"SetupViewController" bundle:nil]; self.setupViewController = controller; self.setupViewController.title = @"Setup"; [self.navigationController pushViewController:self.setupViewController animated:YES]; [controller release]; } I can see the log statement in my console, but the view never changes. Am I missing something?

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  • Error with custom Class definition in protocol

    - by Greg
    I'm trying to set up a custom delegate protocol and am getting a strange error that I don't understand. I wonder if someone could point out what I'm doing wrong here (I'm still new to Ob-C and protocol use)... The situation is that I've built my own URLLoader class to manage loading and parsing data from the internet. I'm now trying to set up a protocol for delegates to implement that will respond to the URLLoader's events. So, below is my protocol... #import <UIKit/UIKit.h> #import "URLLoader.h" /** * Protocol for delegates that will respond to a load. */ @protocol URLLoadResponder <NSObject> - (void)loadDidComplete:(URLLoader *)loader; - (void)loadDidFail:(URLLoader *)loader withError:(NSString *)error; @end However, I'm getting the following error for both method signatures: Expected ')' before 'URLLoader' I feel like I must be overlooking something small and silly. Any help folks could offer would be greatly appreciated! Whoops ... it was pointed out that I should include URLLoader.h. Here it is: #import <Foundation/Foundation.h> #import "URLLoadResponder.h" /** * URLLoader inferface. */ @interface URLLoader : NSObject { NSString *name; NSString *loadedData; NSMutableData *responseData; NSObject *delegate; BOOL _isLoaded; } @property (nonatomic, retain) NSString *name; @property (nonatomic, retain) NSString *loadedData; @property (nonatomic, retain) NSObject *delegate; - (void)loadFromURL:(NSString *)url; - (void)addCompleteListener:(id)observer selector:(SEL)sel; - (void)removeCompleteListener:(id)observer; - (void)parseLoadedData:(NSString *)data; - (void)complete; - (void)close; - (BOOL)isLoaded; + (NSURL *)makeUrlWithString:(NSString *)url; + (URLLoader *)initWithName:(NSString *)name; @end

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  • uiscrollview not scrolling horizontally

    - by Futur
    My UIScrollView below is not scrolling horizontally, Please help me here.. FirstView = [[UIView alloc] initWithFrame:CGRectMake(60, 0, 100, 150)]; [FirstView setBackgroundColor:[UIColor clearColor]]; SecondView = [[UIView alloc] initWithFrame:CGRectMake(320+60, 0, 100, 150)]; [SecondView setBackgroundColor:[UIColor clearColor]]; HolderView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 1000, 150)]; scrHorizontalScroll = [[UIScrollView alloc]initWithFrame:HolderView.frame]; [scrHorizontalScroll setBackgroundColor:[UIColor redColor]]; [scrHorizontalScroll setContentSize:CGSizeMake(999, 150)]; [scrHorizontalScroll setScrollEnabled:YES]; [HolderView addSubview:scrHorizontalScroll]; The HolderView is not scrolling horizontally but which happen, please help

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