objective-c

TableView crashes help please!!

Hi, for some reason this tableview keeps crashing and it seems like the tableview is unable to display the secondsString for some reason but i have no idea why... please help me out here cause i have no idea what i could be doing wrong..... Thanks!! #import "SettingsView.h" @implementation SettingsView - (void)viewWillAppear:(BOOL)ani...

example of webview tool.

hey, I am new to objective-c so i do not know how to create webview control.I want to display any web page in web view so how can i do this. thanx for help in advance.... ...

NULL value from NSDateFormatter from XML

Hi guys, This was working fine before compiling with iOS4.0 and I can't figure out what's wrong. Here's the problem. I send my app scores from my database with a date/time on it. My goal is to store that in CoreData. When I use the code below I get a null value for the date. Code: NSDateFormatter *dateFormatter = [[NSDateFormatt...

NSThread - help with loading an image from a URL

I'm trying to use threading to load an image from a url. I have no background code and I'm having trouble getting the NSThread thing to work. What I've got is a UIimageView called photo1 and I've got an image that loads in from the net. (say http://www.google.com/logos/classicplus.png) but when navigating to the screen, the app pauses to...

How to read a pdf on ipad/iphone?

What is the way to read PDF content on an iPad or iPhone? ...

Cannot adopt WebKit protocols

#import <WebKit/WebKit.h> @interface MyClass : NSObject <WebFrameLoadDelegate> { WebView *webView; } cannot find protocol declaration for 'WebFrameLoadDelegate' ...

Can't receive NSInputStream events in OCUnitTest

I'm trying to learn how to use the NSInputStream class on the iPhone using a unit test. I can get the NSStream to read data from a file using the polling method but for some reason the delegate/event method is not working. I've posted the relevant code below. Please ignore memory leak errors and such since I'm just trying to ensure I ...

iphone imageview sequence animation

Hey, trying to put a simple png sequence animation into my app. I have the first frame in place in IB, and the graphanimation outlet connected to it. There are 54 pngs in the sequence with names "Comp 1_0000.png" to "Comp 1_00053.png" Here's my code. -(void)viewDidLoad{ for (int i=0; i<53; i++) { graphanimation.animationImag...

How to mock property/internal value of UIApplication?

I'm writing unit tests. And I cannot test one function, because it calls keyWindow UIWindow* window = [UIApplication sharedApplication].keyWindow; And keyWindow returns nil (I don't have any window). But I need to return anything, but nil. I used category to manually set keyWindow value, but this didn't work @interface UIApplication...

NSFetchedResultsController does not find any data, but normal NSFetchRequest does

I am new to Core Data and got really confused about this problem. I use an NSFetchedResultsController to get my data from the Core Data storage. After trying to delete data, my app crashes and the FRC doesn't work anymore. I deleted all data and tried it again, but it still doesn't work. The confusing thing is that a standard NSFetchRe...

how to remove all objects from Core Data

Hi guys, how can I remove all objects? I know I can remove one by [managedObjectContext deleteObject:objToDelete]; is it possible to delete all without iterating all array? thanks ...

Override inherited method as private in objective-c

I am creating a subclass of UIBarButtonItem, to provide some specific functionality. The new class has an initializer, that is the only one that should be used when creating an instance of the class: - (id) initWithSomeObject:(SomeObject *)param; The problem is, all the initializers from UIBarButtonItem are still available, so I coul...

Is there no unit testing framework in the iphone sdk?

Is there no unit testing framework in the iphone sdk? ...

object interface layout?

Previously I used to write my object interfaces like this: // VERSION 1.0 @interface Planet : NSObject { NSString *name; NSString *type; NSNumber *mass; } @property(nonatomic, retain) NSString *name; @property(nonatomic, retain) NSString *type; @property(nonatomic, retain) NSNumber *mass; -(NSString *)description; @end Bu...

Window list ordered by recently used

I'm trying to create a window switching application. Is there any way of getting a list of the windows of other applications, ordered by recently used? ...

"expected ':' before '.' token" When trying to dismiss UIPopover

I'm getting a compiler error when i try to build the following code. Its a simple View (UntitledViewController) that has a navbar with a bar button item which calls showPopUp that creates and displays a pop up with my other view (popoverview). Popoverview has a button which calls hidePopOver which im trying to make close the pop up , bu...

How do I set the picture in a UIImageView

I need to set an image view to display an image here. else if (n == 2) { gamestatus.text = @"The Card is A Two."; // I Need to set my imageview to a picture here. } ...

How can i change the simulator user position in Objetive-C MapKit?

I will the location update be harcoded in simulator to my real position... ...

Accessing IP Address with NSHost

I am trying to get the IP Address using NSHost. With the NSHost object I can use the addresses method to access an array of objects one of which is the IP Address. I fear though that the IP Address may change position in the array from one machine to the other. Is there a way to access this information in a universal way? There was an a...

What exactly does @synthesize do?

I have seen the following piece of code: //example.h MKMapView * mapView1; @property (nonatomic, retain) MKMapView * mapView; //example.m @synthesize mapView = mapView1 Question: What relation between mapView and mapView1 is ? Does it create set and get method for mapView1 ? Thanks ! ...