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  • MkMapView Zoom Level

    - by meetS
    I m using MkMapView with google maps.I succeed to show map view and address with annotation pin.But I want increased zoom level.How Can I Set it programmatically?? (void) showMyAddress { //Hide the keypad MKCoordinateRegion region; MKCoordinateSpan span; span.latitudeDelta=0.2; span.longitudeDelta=0.2; CLLocationCoordinate2D location = [self addressLocation]; region.span=span; region.center=location; if(addAnnotation != nil) { [mapView removeAnnotation:addAnnotation]; [addAnnotation release]; addAnnotation = nil; } addAnnotation = [[AddAnnotation alloc] initWithCoordinate:location ]; [addAnnotation setMTitle:@"abc"]; [addAnnotation setMSubTitle:@"def."] [mapView addAnnotation:addAnnotation]; [mapView setRegion:region animated:TRUE]; [mapView regionThatFits:region]; } -(CLLocationCoordinate2D) addressLocation { NSString *urlString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%@&output=csv", [@"abc" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; NSString *locationString = [NSString stringWithContentsOfURL:[NSURL URLWithString:urlString] encoding:NSStringEncodingConversionAllowLossy error:nil]; NSArray *listItems = [locationString componentsSeparatedByString:@","]; double latitude = 0.0; double longitude = 0.0; if([listItems count] >= 4 && [[listItems objectAtIndex:0] isEqualToString:@"200"]) { latitude = [[listItems objectAtIndex:2] doubleValue]; longitude = [[listItems objectAtIndex:3] doubleValue]; } else { } CLLocationCoordinate2D location; location.latitude = latitude; location.longitude = longitude; return location; }

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  • UISearchBar and UINavigationItem

    - by tbehunin
    I can't seem to get a UISearchBar to position itself from the far left to the far right in the navigation bar. In the -(void)viewDidLoad method, I have the following code: `UISearchBar *sb = [[UISearchBar alloc] initWithFrame:self.tableView.tableHeaderView.frame]; sb.delegate = self; self.navigationItem.titleView = sb; [sb sizeToFit]; [sb release];` When you build and run, it looks just fine at first glance. However, looking more closely, you can tell there is a margin/space on the left. This wouldn't be a big deal in the grand scheme of things, but when I tap the search bar to start a search, I animate the cancel button into view. Because the search bar is positioned slightly to the right, the animation is jerky and the cancel button falls off the end like so: link text It seems as if the UINavigationItem is like a table with three cells, where there is a padding on the first and last which I can't remove - nor does there seem to be a way to 'merge' it all together and then place the search bar there. I know this look is possible, because the AppStore search has a search bar in the navigation bar and it goes all the way to the edges. Anyone know how to get the search bar to go all the way to the edges so my slide-in cancel button animation will work properly?

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  • iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?

    - by LKM
    I'm writing a web app for the iPad (not a regular App Store app - it's written using HTML, CSS and JavaScript). Since the keyboard fills up a huge part of the screen, it would make sense to change the app's layout to fit the remaining space when the keyboard is shown. However, I have found no way to detect when or whether the keyboard is shown. My first idea was to assume that the keyboard is visible when a text field has focus. However, when an external keyboard is attached to an iPad, the virtual keyboard does not show up when a text field receives focus. In my experiments, the keyboard also did not affect the height or scrollheight of any of the DOM elements, and I have found no proprietary events or properties which indicate whether the keyboard is visible.

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  • How to add UITabViewController programatically?

    - by chaitanya
    Hi, In my app I need to add tabviewcontroller to my 2nd view, If its a main view directly we can take the TabViewController type while creating the project but my requirement is i have one view controller in my app, from this view i shold call tabviewcontroller, So how can I tab view controller programatically and how to add nibs to that and how to define the no of tabs for this programatically?

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  • becomeFirstResponder not working!!!

    - by vikinara
    In the below code becomeFirstResonder not working, only resignFirstresponder working...can anyone please help - (BOOL)textFieldShouldReturn:(UITextField *)textField { if (textField == txtDate) { [txtDate resignFirstResponder]; [txtTime becomeFirstResponder]; } if (textField == txtTime) { [txtTime resignFirstResponder]; [txtAddress becomeFirstResponder]; } if (textField == txtAddress) { [txtAddress resignFirstResponder]; [txtCity becomeFirstResponder]; } if (textField == txtCity) { [txtCity resignFirstResponder]; [txtState becomeFirstResponder]; } if(textField == txtState) { [txtState resignFirstResponder]; [txtZip becomeFirstResponder]; } if (textField == txtZip) { [txtZip resignFirstResponder]; } return NO; } - (BOOL)textFieldShouldEndEditing:(UITextField *)textField { if(textField == txtDate) { NSString *dateString = txtDate.text; NSString *dateRegex = @"^(1[0-2]|0[1-9])/(3[01]|[12][0-9]|0[1-9])/[0-9]{4}$"; NSPredicate *dateTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", dateRegex]; BOOL validateDate = [dateTest evaluateWithObject:dateString]; if(!validateDate){ UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Date Error." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtDate.text = nil; } } if(textField == txtTime) { NSString *timeString = txtTime.text; NSString *timeRegex = @"^(([0]?[0-5][0-9]|[0-9]):([0-5][0-9]))$"; NSPredicate *timeTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", timeRegex]; BOOL validateTime = [timeTest evaluateWithObject:timeString]; if(!validateTime) { UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Incorrect Time Entry." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtTime.text = nil; } } if(textField == txtAddress) { NSString *addressString = txtAddress.text; NSString *addressRegex = @"^[a-z0-9 ]+$"; NSPredicate *addressTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", addressRegex]; BOOL validateAddress = [addressTest evaluateWithObject:addressString]; if(!validateAddress) { UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Incorrect State." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtAddress.text = nil; } } if(textField == txtState) { NSString *stateString = txtState.text; NSString *stateRegex = @"^(?-i:A[LKSZRAEP]|C[AOT]|D[EC]|F[LM]|G[AU]|HI|I[ADLN]|K[SY]|LA|M[ADEHINOPST]|N[CDEHJMVY]|O[HKR]|P[ARW]|RI|S[CD]|T[NX]|UT|V[AIT]|W[AIVY])$"; NSPredicate *stateTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", stateRegex]; BOOL validateState = [stateTest evaluateWithObject:stateString]; if(!validateState) { UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Incorrect State." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtState.text = nil; } } if(textField == txtCity) { NSString *cityString = txtCity.text; NSString *cityRegex = @"^[a-z ]+$"; NSPredicate *cityTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", cityRegex]; BOOL validateCity = [cityTest evaluateWithObject:cityString]; if(!validateCity) { UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Incorrect City." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtCity.text = nil; } } if(textField == txtZip) { NSString *zipString = txtZip.text; NSString *zipRegex = @"^[0-9]{5}([- /]?[0-9]{4})?$"; NSPredicate *zipTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", zipRegex]; BOOL validateZip = [zipTest evaluateWithObject:zipString]; if(!validateZip) { UIAlertView *alert2 = [[UIAlertView alloc] initWithTitle:nil message:@"Incorrect Zip." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert2 show]; [alert2 release]; txtZip.text = nil; } } return NO; }

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  • OBJC_CLASS_$_MTSCRA", referenced from

    - by user1078841
    I was trying to make a sample code run download by the link http://www.magtek.com/support/software/downloads/sw/99510108.zip This is a card reader api ,here is a sample code.When I run this code I got the error: ld: warning: ignoring file /Users/gaurav.garg/Downloads/99510108/SampleCode/Lib/libMTSCRA.a, missing required architecture i386 in file Undefined symbols for architecture i386: "_OBJC_CLASS_$_MTSCRA", referenced from: objc-class-ref in MagTekDemoAppDelegate.o ld: symbol(s) not found for architecture i386 clang: error: linker command failed with exit code 1 (use -v to see invocation) The class MTSCRA is only a header file,And the solution that I have cheked That we have to add the .m file in compiled source path of build build phase of target...but unfortunately I don't have the MTSCRA.m file.MTscra.h have the AudioToolBox and externalAccesory framework.

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  • Customized UISearchBar

    - by Matt
    I've got an app with the following class: @interface SearchViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate> @property (nonatomic, retain) IBOutlet UISearchBar *search; How can I customize UISearchBar? I'd like to add a segmented button to allow for search options (and/or/phrase).

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  • Interface builder UIButton custom background image not working on simulator/device

    - by xenonii
    I'm trying to do something really simple. I have an image for a button and I'm trying to set it on a custom button in interface builder. I set the background image accordingly (no case sensitivity problem here). In interface builder it shows up, but in the simulator or on the device it doesn't appear at all. Just the button's text will appear. Do I need to turn on some flag or something of the sort?

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  • iPad SplitView changes main navigation bar color

    - by JustinXXVII
    Weird problem: After rotating my app to portrait, picking the toolbar item and exposing the uipopovercontroller, if I rotate back to landscape, the UINavigationController on the right side (objectAtIndex:0 of the SplitView) changes the color of the navigation bar. I am not sure why. I have it set in Interface Builder to be barStyle = UIBarStyleBlackOpaque; It turns silver after it returns to landscape mode. This only happens if I rotate it to portrait, create the popover, and select something in the navigation controller, which pushes another tableViewController. Even setting the properties in the viewDidLoad method does nothing. Anyone have an idea?

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  • Adding a NavigationBar to UITableViewController programmatically?

    - by Tony
    I am trying to create a uitableviewcontroller as a modal viewcontroller to edit some settings. I am creating the tableviewcontroller in code and the thing i am struggling with currently is how to correctly add a navigation bar to the controller which will have a "Done" button on it that: a) doesnt appear on top of the tableview and b) does not scroll with the tableview?? This happens when i add the navbar to the contoller with: [self.view addSubview:navigationBar]; This adds a navbar to the controller which goes on top and obscures the tables first row and also scrolls with the view? I also thought about simply using a uiviewcontroller with a separate tableview however i like the funcitonality of automatically scrolling the tableview when editing a textfield that the tableviewcontroller gives you. Just cant figure how to setup this navbar?? thx

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  • Using CALayer Delegate

    - by Shaun Budhram
    I have a UIView whose layers will have sublayers. I'd like to assign delegates for each of those sublayers, so the delegate method can tell the layer what to draw. My question is: What should I provide as CALayer's delegate? The documentation says not to use the UIView the layers reside in, as this is reserved for the main CALayer of the view. But, creating another class just to be the delegate of the CALayers I create defeats the purpose of not subclassing CALayer. What are people typically using as the delegate for CALayer? Or should I just subclass? Also, why is it that the class implementing the delegate methods doesn't have to conform to some sort of CALayer protocol? That's a wider overarching question I don't quite understand. I thought all classes requiring implementation of delegate methods required a protocol specification for implementers to conform to.

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  • Fixing predicated NSFetchedResultsController/NSFetchRequest performance with SQLite backend?

    - by Jaanus
    I have a series of NSFetchedResultsControllers powering some table views, and their performance on device was abysmal, on the order of seconds. Since it all runs on main thread, it's blocking my app at startup, which is not great. I investigated and turns out the predicate is the problem: NSPredicate *somePredicate = [NSPredicate predicateWithFormat:@"ANY somethings == %@", something]; [fetchRequest setPredicate:somePredicate]; I.e the fetch entity, call it "things", has a many-to-many relation with entity "something". This predicate is a filter that limits the results to only things that have a relation with a particular "something". When I removed the predicate for testing, fetch time (the initial performFetch: call) dropped (for some extreme cases) from 4 seconds to around 100ms or less, which is acceptable. I am troubled by this, though, as it negates a lot of the benefit I was hoping to gain with Core Data and NSFRC, which otherwise seems like a powerful tool. So, my question is, how can I optimize this performance? Am I using the predicate wrong? Should I modify the model/schema somehow? And what other ways there are to fix this? Is this kind of degraded performance to be expected? (There are on the order of hundreds of <1KB objects.) EDIT WITH DETAILS: Here's the code: [fetchRequest setFetchLimit:200]; NSLog(@"before fetch"); BOOL success = [frc performFetch:&error]; if (!success) { NSLog(@"Fetch request error: %@", error); } NSLog(@"after fetch"); Updated logs (previously, I had some application inefficiencies degrading the performance here. These are the updated logs that should be as close to optimal as you can get under my current environment): 2010-02-05 12:45:22.138 Special Ppl[429:207] before fetch 2010-02-05 12:45:22.144 Special Ppl[429:207] CoreData: sql: SELECT DISTINCT 0, t0.Z_PK, t0.Z_OPT, <model fields> FROM ZTHING t0 LEFT OUTER JOIN Z_1THINGS t1 ON t0.Z_PK = t1.Z_2THINGS WHERE t1.Z_1SOMETHINGS = ? ORDER BY t0.ZID DESC LIMIT 200 2010-02-05 12:45:22.663 Special Ppl[429:207] CoreData: annotation: sql connection fetch time: 0.5094s 2010-02-05 12:45:22.668 Special Ppl[429:207] CoreData: annotation: total fetch execution time: 0.5240s for 198 rows. 2010-02-05 12:45:22.706 Special Ppl[429:207] after fetch If I do the same fetch without predicate (by commenting out the two lines in the beginning of the question): 2010-02-05 12:44:10.398 Special Ppl[414:207] before fetch 2010-02-05 12:44:10.405 Special Ppl[414:207] CoreData: sql: SELECT 0, t0.Z_PK, t0.Z_OPT, <model fields> FROM ZTHING t0 ORDER BY t0.ZID DESC LIMIT 200 2010-02-05 12:44:10.426 Special Ppl[414:207] CoreData: annotation: sql connection fetch time: 0.0125s 2010-02-05 12:44:10.431 Special Ppl[414:207] CoreData: annotation: total fetch execution time: 0.0262s for 200 rows. 2010-02-05 12:44:10.457 Special Ppl[414:207] after fetch 20-fold difference in times. 500ms is not that great, and there does not seem to be a way to do it in background thread or otherwise optimize that I can think of. (Apart from going to a binary store where this becomes a non-issue, so I might do that. Binary store performance is consistently ~100ms for the above 200-object predicated query.) (I nested another question here previously, which I now moved away).

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  • Problem with accessing variables/functions from subclass Objective C

    - by Mitul Ruparelia
    Hi, I am having a problem with accessing public variable 'activity', which is a UIActivityIndicatorView type, see class declaration below in QuickStartViewController.h: @interface QuickStartViewController : UIViewController <ABPeoplePickerNavigationControllerDelegate> { @public IBOutlet UIActivityIndicatorView *activity; } @property (nonatomic, retain) UIActivityIndicatorView *activity; @end The function is called from another class: #import "QuickStartViewController.h" @interface NumberValidator : QuickStartViewController.... See below: - (void)connectionDidFinishLoading:(NSURLConnection *)connection { [activity startAnimating]; NSLog(@"This function is called, but [activity startAnimating] still doesn't work..."); } Note: [activity startAnimating] works fine when called within the QuickStartViewController class Do you have any suggestions as to why [activity startAnimating] is not working?

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  • UINavigationController leak/understanding popViewController

    - by Kamchatka
    Hello, I have a navigation controller and a table view. When someone click on the table view, I do the following: MyViewController *myViewController = [[MyViewController alloc] initWithImage:image]; [image release]; [self.navigationController pushViewController:myViewController animated:YES]; [myViewController release]; myViewController will retain the image. Now, if I go back and forth in the NavigationController, I get a leak because a new MyViewController gets created each time and apparently the popViewController doesn't release the myViewController. My question: Why doesn't popViewController release the controller? How should I handle that? Put the myViewController as a member of my class and check if it already exists instead of creating it each time? Thanks in advance for your help,

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  • wait_fences: failed to receive reply: 10004003 solution:not found.

    - by amy
    I am getting this error message,Whenever I show alertview in function : (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated { and then handling the click actio in : -(void)alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)buttonIndex I saw all related posts but however didn't get any solution to this coz i dont have any keyboards on. I am only using navigation functions ans alertview inside it. App is also crash due to this problem. any help will highly appreciated.

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  • Attempting to set a view's property results in an error: Request for Member … not a structure or …

    - by Mark McDonald
    I've declared a property in a view (created by interface builder, if it matters) and am trying to set the value from the view's controller – like so: self.view.url = someURL; That gives this error: Request for Member 'url' in something not a structure or union I have included the header for the view in the controller's .m file, but I'm probably just doing something wrong, but I don't know what – any ideas? The view code: @interface PDFView : UIView { NSURL *url; } @property (nonatomic, retain) NSURL *url; @end @implementation PDFView @synthesize url;

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  • MPMoviePlayerController & .m3u8 playlist

    - by Thierryb
    Hello, I would like to use a .m3u8 playlist containing remote mp4 files with MPMoviePlayerController, did you success with this ? Does the .m3u8 must contain .ts file ?If not what is the purpose of .ts ? Does next / previous buttons will be enable once the playlist be loaded ? If not, what is the purpose of these buttons ? And last question, do you have a .m3u8 sample file with remote mp4 file to test ? Thanks a lot for your help. Thierry

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  • Suppressing line specific XCode compiler warnings

    - by MrHen
    Similar to Ben Gottlieb's question, I have a handful of deprecated calls that are bugging me. Is there a way to suppress warnings by line? For instance: if([[UIApplication sharedApplication] respondsToSelector:@selector(setStatusBarHidden:withAnimation:)]) { [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide]; } else { [[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO]; //causes deprecation warning } All I care about is that line. I don't want to turn off all deprecation warnings. I would also rather not do something like suppress specific warnings by file. There have been a few other circumstances where I wanted to flag a specific line as okay even though the compiler generates a warning. I essentially want to let my team know that the problem has been handled and stop getting bugged about the same line over and over.

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  • Problems with transitionWithView and animateWithDuration

    - by MusicMathTech
    I have problems with transitionWithView and animateWithDuration. One of my animateWithDuration blocks doesn't transition, it is a sudden change, and transitionWithView does not temporarily disable user interaction. I have checked the docs and believe I am doing everything correctly, but obviously something is wrong. Here are the two blocks of code: This is in my main View Controller ViewController which has three container views/child view controllers. This block moves one of the container views, but does not block the user from other interactions in ViewController while the transition is occurring. [UIView transitionWithView:self.view duration:0.5 options:UIViewAnimationOptionCurveEaseOut animations:^ { CGRect frame = _containerView.frame; frame.origin.y = self.view.frame.size.height - _containerView.frame.size.height; _containerView.frame = frame; }completion:^(BOOL finished) { // do something }]; This is in one of my container view controllers. The animation seems to have no effect as the text of the productTitleLabel and productDescriptionTextView changes suddenly as if the animation block does not exist. - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [self.viewController toggleFlavoredOliveOilsTableView]; if (indexPath.row > 0) { NSDictionary *selectedCellDict = [[_flavoredOliveOilsDict objectForKey:@"Unflavored Olive Oils"] objectAtIndex:indexPath.row - 1]; [UIView animateWithDuration:0.5 delay:0 options:UIViewAnimationOptionTransitionCrossDissolve animations:^ { self.viewController.productTitleLabel.text = [_flavoredOliveOilsTableView cellForRowAtIndexPath:indexPath].textLabel.text; self.viewController.productDescriptionTextView.text = [selectedCellDict objectForKey:@"Description"]; }completion:nil]; if (indexPath.row == 1) { [self.viewController setProductDescriptionTextViewFrameForInformationTab]; } else { [self.viewController setProductDescriptionTextViewFrameForNonInformationTab]; //self.viewController.productImageView.image = [UIImage imageNamed:[selectedCellDict objectForKey:@"Image"]]; } } } I think the problems are somewhat related as most of my animation and transition blocks don't work completely as expected. Thanks for any help. Edit What I am trying to accomplish is moving a container view in ViewController and set the text and image properties of a label, text view, and image view; all of which are in the main view. The details of these properties are sent via the child view controller. The transitionWithView is in a method called toggleFlavoredOiveOilsTableView which is called in didSelectRowAtIndexPath. I think the problem is that I am trying to call two different animation/transition blocks at the same time.

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  • UISegmentedControl selected segment color

    - by Mike
    Is there any way to customize color of selected segment in UISegmentedControl? I've found segmentedController.tintColor property, which lets me customize color of the whole segmented control. The problem is, when I select bright color for tintColor property, selected segment becomes almost unrecognizable (its color is almost the same as the rest of segmented control, so its hard to distinguish selected and unselected segments). So I cannot use any good bright colors for segmented control. The solution would be some separate property for selected segment color but I cannot find it. Did anyone solve this?

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