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  • Timed selector never performed

    - by sudo rm -rf
    I've added an observer for my method: [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(closeViewAfterUpdating) name:@"labelUpdatedShouldReturn" object:nil]; Then my relevant methods: -(void)closeViewAfterUpdating; { NSLog(@"Part 1 called"); [self performSelector:@selector(closeViewAfterUpdating2) withObject:nil afterDelay:2.0]; } -(void)closeViewAfterUpdating2; { NSLog(@"Part 2 called"); [self dismissModalViewControllerAnimated:YES]; } The only reason why I've split this method into two parts is so that I can have a delay before the method is fired. The problem is, the second method is never called. My NSLog output shows Part 1 called, but it never fires part 2. Any ideas? EDIT: I'm calling the notification from a background thread, does that make a difference by any chance? Here's how I'm creating my background thread: [NSThread detachNewThreadSelector:@selector(getWeather) toTarget:self withObject:nil]; and in getWeather I have: [[NSNotificationCenter defaultCenter] postNotificationName:@"updateZipLabel" object:textfield.text]; Also, calling: [self performSelector:@selector(closeViewAfterUpdating2) withObject:nil]; does work. EDITx2: I fixed it. Just needed to post the notification in my main thread and it worked just fine.

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  • App shuts down when pushing UIbutton!

    - by maralbjo
    For reasons unknown my app shuts down upon pressing a UIButton in the simulator. I have dynamically added my UIView, if that is of relevance. No tracelog or debug information just a rush exit... This is the simple code (.m-file): - (IBAction) testButtonPressed: (id) sender{ NSLog (@"Testbutton pressed."); } From the header file: - (IBAction) testButtonPressed: (id) sender; Pretty basic stuff, but for some reason the app terminates. Help!

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  • Which icons/buttons to use for help, about, info?

    - by 4thSpace
    I use the info button to display a settings page. This page is a modal. I need another button from here to display "About" info, since I've already used "info" for something. I have a search form that is accessed only from the modal. On the search form, I need a help icon. I can use the info button but that seems confusing, since I already use the info button from the main view to access the modal. What else can I do for help and about icons/buttons?

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  • Set parameter to super view after dismissModalViewControllerAnimated

    - by user536926
    Hi, I have 2 view (view A and view B). In viewA when I touch a button I execute this code to flip a viewB: viewB.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; [self presentModalViewController:viewB animated:YES]; And now when I came back to viewA I use this code: [self dismissModalViewControllerAnimated: YES]; //here is my problem I need to set same parameters to viewA when I execute dismiss. How can I do it?

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  • syncing data with server

    - by user155673
    Hi all, I'm trying to sync data from my application onto the server. I'm very new to this kind of work. For this i wrote a small web service in php, insertData($_get['username'], $_get['password']); ? Now, i'm not able to figure out how to call this web service and how to send the 2 variable values to the insertData function from the app using xCode. Any kind of help on this would be appreciated. Thanks & Regards, NR

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  • How can I reset my UI when the user presses a button?

    - by Fasttracks
    I have 1 scrollview that contain 18 buttons. 1) when a user taps on any button, a button is added to a second UIScrollView. 2) Then, when a user taps on that button on second scrollview the button is removed from second scrollview. both uiscrollviews contain a list of their buttons. Afree both of these steps, I have to reload my scrollview. Can I do the same task by adding observer, so that it will automatically reload when any action done on button, and if yes then how?

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  • I can not hide keyboard by pressing return key

    - by chetan
    I have tried this: In .h file @interface TouchLabelViewController : UIViewController<UITextFieldDelegate> -(IBAction)hideKeyboard:(id)sender; In .m File -(IBAction)hideKeyboard:(id)sender{ [(UITextField*)sender resignFirstResponder]; } And also tried this in .h file -(BOOL) textFieldShouldReturn:(UITextField *)textField; in .m file -(BOOL) textFieldShouldReturn:(UITextField *)textField{ [aTextField resignFirstResponder]; return YES; } But still whenever i touch return key it does not hide keyboard.

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  • How do I specify to only display the "Value" of my plist - Right now the whole path loads in my UITe

    - by JoshD
    showDescriptionPath is being passed from the previous Tableview. The text shows up, but the entire path prints in the UITextField instead of just the value of "Description" in my plist. NSString *DescriptionPath = [[NSBundle mainBundle] bundlePath]; NSString *DescriptionInfoPath = [DescriptionPath stringByAppendingPathComponent:showDescriptionInfo]; showDescription.text = [[NSString alloc] initWithFormat:@"%@",DescriptionInfoPath];

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  • UITableViewCell get nil

    - by MTA
    I create a UITableView with custom UITableViewCell,this is how i create the cell in cellForRowAtIndexPath: static NSString *CellIdentifier = @"SongsCell"; SongsCell *cell = (SongsCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil){ UIViewController *vc = [[[UIViewController alloc] initWithNibName:@"SongsCell" bundle:nil] autorelease]; cell = (SongsCell *) vc.view; } now i want to get all cells in the table info (parameter from cell) when a button pressed: for (int i = 0; i < [songTable numberOfRowsInSection:0]; i++) { NSIndexPath *indexPath = [NSIndexPath indexPathForRow:i inSection:0]; UITableViewCell *cell = [songTable cellForRowAtIndexPath:indexPath]; } Now i have a problem that this loop give me for cell a nil for all the cell that currently not seen in the table.

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  • Differentiate Between UITableView Editing States?

    - by Josh Kahane
    I have been looking at trying to differentiate between editing states in my UITableView. I need to call a method only when in editing mode after tapping the edit button, so when you get your cell slide in and you see the little circular delete icons but NOT when the user swipes to delete. Is there anyway I can differentiate between the two? Thanks. EDIT: Solution thanks to Rodrigo Both each cell and the entire tableview has an 'editing' BOOL value, so I loop through all the cells and if more than one of them is editing then we know the whole table is (the user tapped the edit button), however if only one is editing then we know that the user has swiped a cell, editing that individual one, this lets me deal with each editing state individually! - (void)setEditing:(BOOL)editing animated:(BOOL)animated { [super setEditing:editing animated:animated]; int i = 0; //When editing loop through cells and hide status image so it doesn't block delete controls. Fade back in when done editing. for (customGuestCell *cell in self.tableView.visibleCells) { if (cell.isEditing) { i += 1; } } if (i > 1) { for (customGuestCell *cell in self.tableView.visibleCells) { if (editing) { // loop through the visible cells and animate their imageViews [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; cell.statusImg.alpha = 0; [UIView commitAnimations]; } } } else if (!editing) { for (customGuestCell *cell in self.tableView.visibleCells) { [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; cell.statusImg.alpha = 1.0; [UIView commitAnimations]; } } }

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  • Convert "minutes since midnight" to time (convert to NSDate?)

    - by Canada Dev
    I am getting some open/closed times as integers since midnight. For example: "1140" = 19:00 (or 7 pm if you will) or; "570" = 9:30 (or 9.30 am) I can easily get the time in European format, just by doing doing a simple calculation and formatting: [NSString stringWithFormat:@"%d:00", (T / 60)] However, this doesn't work for half hours, such as "570 minutes since midnight". Also, I run into problems if I want to include a bit of localization, because some people may prefer AM/PM times. Does NSDate include a method for easily implementing times using the above? Or can anyone tell me how I would at least convert a time like "570 minutes since midnight" to 9:30 properly. Right now it obviously won't write the :30 part. Thank you

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  • deleteRowsAtIndexPaths- crahes application [closed]

    - by Tushar Chutani
    (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { NSLog(@"delet it"); // Delete the row from the data source. [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; } else if (editingStyle == UITableViewCellEditingStyleInsert) { // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view. } } why is this crashing my application

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  • Update Label text from XML

    - by kpk77
    Hi, I have an XML will is parsed and then fed to a bunch of Labels. I am trying to add a live element so that the labels refresh automatically from the XML. From what I've read this is possible using a tableView and [tableView reloadData] but the design dictates the use of labels. At the moment the labels only get updated on restarting the app, which is not ideal. Using ViewWillAppear is one option, but want to stick to using lables.

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  • Application to download video from youtube

    - by Nidal Saed
    I making an application to view videos form youtube, and I think it is very easy to write a code to make the user be able download the videos and save it in the documents folder of the application, my questions are: 1) is it legal to do this, and is there any concern of the application being rejected? 2) is it possible to make the user watch the video and when he finish (watched all the video) get this data and save it, (not to download it again since he already watched the video and downloaded it).

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  • Adding images to an array memory issue

    - by Friendlydeveloper
    Hello all, I'm currently facing the following issue: My app dynamically creates images (320 x 480 pixels) and adds them to a NSMutableArray. I need those images inside that array in order to allow users to browse through them back and forth. I only need to keep the latest 5 images. So I wrote a method like below: - (void)addImageToArray:(UIImage*)theImage { if ([myMutableArray count] < 5) { [myMutableArray addObject:theImage]; } else { [myMutableArray removeObjectAtIndex:0]; [myMutableArray addObject:theImage]; } } This method basically does what it's supposed to do. However, in instruments I can see, that memory usage is permanently incrementing. At some point, even though I do not have any memory leaks, the app finally crashes. The way I see it, XCode does remove the image from my array, but does not release it. Is there a way I can make sure, that the object I want to remove from my array will also get released? Maybe my approach is completely wrong and I need to find a different way. Any help appreciated. Thanks in advance

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  • UITableView crashes when adding 2 objects to an empty store, with sections (NSRangeException)

    - by likejy
    UITableView crashes in endUpdate, called by the Managed Object Context "save" method, when: 1- The Core-Data Store is empty 2- The Fetched Result Controller is configured to show sections 3- Two managed objects (or more) have been added to the store When I've searched this situation in google. I've found exactly matched error in this post. It looks like a bug.Is there a any solution to avoid this bug ?

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  • UIButton At Run Time

    - by rami
    I want to create UIButton At Run Time. I Have main view in which I have Table View when I select Row it Open Sub View with Toolbar and in that I Click on Add Button on tool Bar it opens the another view in which I add My value(like name)now when I press save Button It goes back to the sub View with Toolbar and it create button with name which I save and add it in sub view But problem is when I do it again all things done well But The Button Which created previous is not seen in sub view.It display only button with name Which I save Last.

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  • UInavigationcontroller

    - by sudhakarilla
    Hello, I have a problem... In my navigationcontroller. i have not working navigationcontroller.its breakof setTitle doesnot follow and doesnot display of Title. -(void)viewDidLoad{ [self.setTitle=@"tableview"]; } Please help in this issue.

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