Hi, everyone i've been trying to figure this out and i have absolutely no clue why this happens. Here is what i'm trying to do: I am building a little gps application and i want things like coordinates, altitude, speed, etc. displayed on my main view. I also want to show the current horizontal accuracy. I do this by using the "locatio...
In Objective-C properties you can set alternative names fpr the accessors. @property(setter=nameWrite:,getter=nameRead,copy) NSString *name; I am thinking real hard but I don't know any situation I would ever do that. It is not KVC standard and I see no advantage at all. What is the use of it? ...
Anyone know of a wrapper for the AddressBook framework that makes it a bit friendlier to use? ...
I am looking to get the location of a touch, preferably corresponding to the pixels of the screen. I'm new to objective-c and cocoa and haven't been able to find anything on the web about this so i'm not sure if there is even a way to do it. any ideas or direction of where to look would be really helpful. thanks. ...
I know it is easy to create a NIB file easily with interface builder but I was wondering if there is a way to archive an existing UIView into a NIB for use later. It looks like a NIB file is just a special type of bundle where each of the UIView objects are archived using NSCoding but I cannot seem to find any more info beyond that. All...
When I add a UIImageView subclass (fullscreen) behind a couple of UIButton subclass instances, those buttons stop receiving the touches and don't function anymore. Nothing I have tried has worked to restore their connectivity to user touches. I have tried: a) Using a UIImageView subclass for the front view (that receives the touches) an...
All the cells in my table are blank. I noticed that tableView:cellForRowAtIndexPath is not being called, which I think is causing this to happen. What calls this method? ...
Hello there, I am quite new here so I do not know many things. And the first thing I do not know is how to Terminate any running process programmatically, e.g. taping on the button; e.g. Mail or Safari. If it is possible, do not show me the whole code, just the proper way I have to try. Thanks. ...
Hi everyone, I am new to iPhone OS App development. Can somebody explain whats the difference between IBOutlet UIButton *myButton; @property (nonatomic, retain) IBOutlet UIButton *myButton; As far i understand the first line was used earlier and now we can use the 2nd line. Theres absolutely no need to write both of them. Any ide...
The following example: http://www.raddonline.com/blogs/geek-journal/iphone-sdk-uitabbarcontroller-how-to-save-user-customized-tab-order/ Doesn't work in iOS4. I would like to be able to save the order of my tabs when the application is shut down. ...
I have data being refreshed in a modalViewController and when that data gets refreshed, the parent controller needs to refresh its data as well. I tried doing a [tableView reloadData]; but it didn't work properly since the actual array values aren't being refreshed. Is there a way for me to reload a controller without the user seeing any...
I'm going nuts trying to see what I'm doing wrong with this... I have an iPad app which runs only in landscape mode. I have a UITabBarController which holds a webview: [tabBarController setViewControllers: [NSArray arrayWithObjects:browserController, nil] animated:YES]; I have a UIButton that I want to be able to us...
Working with some CoreText code on iOS and I am confused as to why this is an overrelease of the CTFrame. I have confirmed it is an over-release but I am baffled because it is created with a create method. for (NSValue *value in [self frameArray]) { CGRect column = [value CGRectValue]; CGMutablePathRef path = CGPathCreateMutable();...
I have a TableViewController and would like to have a static picture as a background, which doesn't scroll along. The way that everyone recommends using [UIColor colorWithPatternImage:[UIImage imageNamed:@"backgroundPattern.png"]] doesn't work as it will 1.) move along and 2.) put the background pattern in every cell I know ho...
Hi all, I am getting errors when trying to add items to a NSMutableArray which is encapsulated within an object. Code follows: #import <Foundation/Foundation.h> @interface TestObject : NSObject { NSMutableArray *myArray; } @property (nonatomic, retain) NSMutableArray *myArray; @end #import "TestObject.h" @implementation Te...
so I have implemented a 1-finger long-press gesture recognizer, but the recognizer always seems to be missing the UIGestureRecognizerStateBegan state... If I long press w/o moving finger and lift, I get the StateEnded debug message. If I long press and move finger a bit then lift, I get the StateChanged and StateEnded debug messages. But...
I'm trying to call the labelWithString function and I'm getting the following run-time errors: Error: CGContextSetGrayFillColor: invalid context 0x0 Error: CGContextTranslateCTM: invalid context 0x0 Error: CGContextScaleCTM: invalid context 0x0 This is the line of code that I tracked it down to: self.label = [CCLabel labelWithString...
Using Iphone and Objective C Im trying to find what plane has been clicked/touched in my opengl view. Typically i would use glPushName/ flPopName but this function doesn't seem to be implemented in the sdk or defined in . Does anyone know where to get there useful functions or another way to get the object that was clicked? ...
I am new to Core Data and trying to think of the simplest and / or most performant way to implement a tags feature for items in Core Data. I am still wrapping my head around the fundamental differences between core data and the sql server I am used to. Has anyone done this? Or have any suggestions of a solid implementation for this? ...
I have a view called PatternsViewController and a subview named SolutionsViewController. I want to pass a variable in PatternsViewController named iteration to my SolutionsViewController, right before I present it with solutions = [[SolutionsViewController alloc] init]; solutions.modalTransitionStyle = UIModalTransitionStyleCrossDissolv...