iphone

xcode executes code that has been deleted

At one point, I modified one piece of code in one of my .m files. The strange thing is that the program runs as if I didn't modify anything. I have deleted some NSLog - lines of code but the console still shows their results (so they - some how- work!!) then I noticed that all I add in this m file has no effect, the executed code being t...

UIAlertView is not showing. What am I doing wrong?

Here is the code: -(IBAction)signUpBtnPressed:(id)sender { UIAlertView *alert = [ [UIAlertView alloc] initWithTitle:@"k" message:@"Thanks for Signing up!" delegate:nil cancelButtonTitle:@"Continue..." otherButtonTitles:nil ]; [alert show]; [alert release]; } I also have my S...

iPhone: image in table cell - wrong position & not scaled correctly in iPhone 3.0

Hi, I have a custom table cell in an iPhone 3.x app to show basketball player data, including a picture. Here's my code from the table controller: UIImageView *theImage = (UIImageView *) [cell viewWithTag:0]; theImage.image = [manager getSmallImageForPlayer: data.number]; theImage.frame = CGRectMake(14, 0, 30, 44); theImage....

Snapshot from a MPMoviePlayerController video

Hello, Is there a way by which i can take a snapshot of a movie or clip being played in iPhones MPMoviePlayerController PROGRAMMATICALLY? Thx in advance ...

iPad launch orientation not detected

I have an iPad app that works correctly except for an odd issue during launch. I've read several questions & answers regarding orientation, but this still has me stumped. The root view controller is a UITabBarController with 3 tabs. Two of the tabs are have custom view controllers (one based off of UIViewController, the other off of UIT...

Using setters On Int?

Just curious, given: unsigned int pulseCounter_001; @property(nonatomic, assign)unsigned int pulseCounter_001; @synthesize pulseCounter_001; Is there any reason to use: [self setPulseCounter_001:0]; Or just use: pulseCounter_001 = 0; Style wise I think the latter says "we are setting an int" better, just curious as to any overhe...

Why doesen't it work to write this NSMutableArray to a plist?

edited. Hey, I am trying to write an NSMutableArray to a plist. The compiler does not show any errors, but it does not write to the plist anyway. I have tried this on a real device too, not just the Simulator. Basically, what this code does, is that when you click the accessoryView of a UITableViewCell, it gets the indexPath pressed, e...

IPhone CoreData: How should I relate many child entities to thier parents

I am trying to import data from a database that uses primary key / foreign key relations to a core data database in Xcode. I have code that creates hundreds of child entities in a managed object context: Each child has an ID that corresponds to a parent. child1 parentID = 3 child2 parentID = 17 child3 parentID = 17 ... childn...

How do I apply a median filter to a UIImage on the iPhone?

I would like to improve my OCR accuracy (I'm using the Tesseract OCR engine) by using a median filter on an image before performing OCR on it. How would I apply a median filter to a UIImage instance? Thanks! ...

Autoresizing subclassed UITableViewCell subviews

I've subclassed UITableViewCell and incorporated some subviews via the layoutSubviews method. All views are allocated and initiated in the initWithStyle method, and frames are set in the layoutSubviews method, like so: initWithStyle:... { UILabel *myLabel = [[UILabel alloc] initWithFrame:CGRectZero]; myLabel.someProperties = Configured...

What is a good way to animate UIViews inside UITableViewCell after a callback?

We couldn't find a way to animate UIViews inside a UITableCell as an action from a callback. Suppose in a scenario where you click on a button on the UITableViewCell and it fires off an asynchronous action to download a picture. Suppose further that when the picture is downloaded we want a UIView in the cell to animate the picture to g...

Graphical glitches when adding cells and scrolling with UITableView

I am using a UITableView to display the results of a series of calculations. When the user hits 'calculate', I add the latest result to the screen. When I add a new cell, the UITableViewCell object is added to an array (which is indexed by tableView:cellForRowAtIndexPath:), and then I use the following code to add this new row to what is...

Best practices to compile an iPhone app optimizing it for maximum speed?

I was wondering what people is doing in order to compile their iPhone applications optimizing them for maximum speed rather than size or the tradeoff speed versus size. ...

iPhone App : Storing / Saving personal preferences once per App

Hi, I want to store / save personal preference settings like Email, Phone number for an App. I have few forms which send info by Email to my ID. I want to know the Email & Phone number of user so I can contact this person if need be. I don't want users to keep entering their Email ID & Phone No. everytime in each form. It's wise to take...

How to make UIWebView in the Detail View of a UISplitView change its content when a row in RootView is selected?

I have a UISplitView-based app with a UIWebVIew in the Detail View. I want to make it change its content when user chooses a new row in the table in Root View. I tried like this in DetailViewController: - (void)setDetailItem:(id)newDetailItem { extern NSString *rowname; if (detailItem != newDetailItem) { [detailItem release]; de...

Accessing View in awakeFromNib?

I have been trying to set a UIImageView background color (see below) in awakeFromNib [imageView setBackgroundColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:1.0]]; When it did not work, I realised that its probably because the view has not loaded yet and I should move the color change to viewDidLoad. Can I just verify that I have ...

connect tableView + tableView

Right now I have an indexed tableview that goes to a detail view but i want it to go to another tableview then a detail view. my code like this: ` - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { displyAnnController *anController = [[displyAnnController alloc] initWithNibName:@"AnnView" bun...

Using Remote Web Page to Initialize iPhone App

My iPhone app relies on a vendor's XML feed to provide data. But that feed is not locked down. The vendor could change the format of the XML at any time, although so far they've promised not to. Since I might want to tell my app to use a different URL for its data source, I'd like to set up a single "Command Central" Web page, on my ow...

Interpret Objective C scripts at runtime on iPhone?

Is there anyway to load an objective c script at runtime, and run it against the classes/methods/objects/functions in the current iPhone app? MAJOR NOTE: The major reason I'd like to do this is to allow me to rapidly prototype an application, and then, after I'm done a major prototyping phase, take the scripts I was writing and compile...

exception handling in iphone?

what is the syntax for handle the exceptions in iphone sdk? how to handle the exceptions in iphone. what documentation to know more about? tutorial, sample code are most wanted and thankful. ...