Hey guys. So I am creating buttons dynamically within loadView. Each of these buttons is given an action using the @Selector method, such as : [button addTarget:self action:@selector(showCCView) forControlEvents:UIControlEventTouchUpInside]; Now that showCCView method is defined outside of loadView, where this above statement is locate...
for example, I have a textfield, that records the user name, after I click the button, it will display the next view, and I want the next view ge the text field data, and display on the second view, how can I do so? ...
I've got an array with items, and I want to pass these in to a variable-length method. How do you do that? I.e., I've got this (for example): NSArray *array = [NSArray arrayWithObjects:@"1", @"2", @"3", nil]; [[UIAlertView alloc] initWithTitle:@"title" message:@"message" delegate:nil cancelButtonTitle:[array objectAtIndex:0] otherButt...
It is my MyName.h: #import <Foundation/Foundation.h> @interface MyName : NSObject { NSString *myName; } @property(readwrite) NSString *myName; @end and this is the .m: #import "MyName.h" @implementation MyName @synthesize myName; @end It is my another controller.m #import "MyName.h" #import "MainViewController.h" @i...
I am just curious, I am writing some notes for a friend and am not sure how to best refer to whats happening here ... [myObject display]; access the object by calling display access the object by messaging display access the object by sending the display message other ... Just want to make sure I get the terminology right. gary ...
Hello, I am trying to figure out the reason why I should learn these things about delegates and protocols. First I thought that it was necessary in order to create nice(er) design of the code. Then I started to read and I cannot really find the reasons I though that I was going to find (That is, "good" reasons...). When should I apply ...
I have been unable to google an acceptable solution to this that can be applied to my project. My app is a graphing tool that has three tabs; one for the graph itself and the other two are for browse/search functions for things that can be added to the graph. All tabs are navigation controllers. The tab for the graph itself, when in po...
I started getting getting warnings like the following in XCode when trying to write some unit tests with OCUnit (SenTestingKit). warning: creating selector for nonexistent method 'myMethodName1:' warning: creating selector for nonexistent method 'myMethodName2:' ... warning: creating selector for nonexistent method 'release' warning: c...
Hi everyone, I'm using the data with core data and get an NSSet of NSNumber... my question is how can I do to change easily all the objects into int values? or can I directly get the int values from the database? Thanks ...
Hi Everybody, I am trying to upload a image which i am clicking with the help of the camera. I am trying the following code to upload the image to the remote server. -(void)searchAction:(UIImage*)theImage { UIDevice *dev = [UIDevice currentDevice]; NSString *uniqueId = dev.uniqueIdentifier; NSData * imageData = UIImagePNGRepresentati...
I have a few basic questions regarding the syntax and usage of properties in Objective C and would appreciate it if someone could answer them please. Assume the following declaration in the header: @interface TestObject : NSObject { NSArray *myArray; } @property (nonatomic, retain) NSArray *myArray; In the implementation, can ...
I'm tring to use the NSURL class's parameterString message to return the string from the following url: http://www.host.com/Api/Service.svc/GetStuff?param=thisIsTheParamValue I keep getting nil for the parameterString. Does that url not conform to the standards that Apple uses? ...
Hi everyone, I would like to sort the data of a core data NSSet (I know we can do it only with arrays but let me explain...). I have an entity user who has a relationship to-many with the entity recipe. A recipe has the attributes name and id. I would like to get the data such that: NSArray *id = [[user.recipes valueForKey:@"identity"] ...
In my code below, CustomWindow is a subclass of NSWindow. CustomWindow *window = [[CustomWindow alloc] init]; if (![NSBundle loadNibNamed:@"NibName" owner:window]) [window center]; // doesn't work How do you get a pointer to control your XIB after you load it so you can do things such as centering the NSWindow (I mean the serialised o...
Is there a better way to compare a NSNumber with a fixed value, it just feels a little clunky. if([myNumber isEqualToNumber:[NSNumber numberWithInt:0]]) NSLog(@"Zero"); I do know I can use -compare but it pretty much looks the same ... gary ...
Pretty simple question: when doing some pretty intense drawing with CoreGraphics on the iPhone, how can I specify the pixel format to get optimal performance? Is the format that I get from the context via UIGraphicsGetCurrentContext per definition the best one? I know that RGB565 is supposed to be the fastest to use in OpenGL. Does that ...
I would like to have a UITextField which aligns to the bottom and to the right. I would like the majority of text to be on the bottom line with putting extra words on the next line as needed. I have been messing around with different layoutSubviews implementations to achieve this functionality. However, the text always fills the top l...
I'm working with a C++ audio library in an iPhone app. Is there any Objective C / Cocoa memory management infrastructure I can use for my C++ objects, or do I need to just read up and learn C++ memory management? ...
hello all im trying out the chapter 10 example on push notifications. dont know if anyone has read it, its a really great article on push notifications. the code seems fine, the only problem i have is when i use NSString *registerResult = [NSString stringWithContentsOfURL:[NSURL URLWithString:getURLString]]; it give me a warning that i...
I've done some reorganizing of my project recently and now I'm not seeing my tab bar controller, but its first view controller's view is appearing. Here's a breakdown of everything that happens prior to the problem. App Delegate loads FirstViewController with nib. FirstViewController loads the application data from my server and then ...