I'm building an iphone app, and I wanna use the iPhone's built in Preferences stuff. It looks like I put options in there, but I'm interested in putting a Reset button in the Prefs. I see that Apple's built-in apps like Safari have buttons in their prefs (Clear History, Clear Cookies, etc). I don't see a way to do this for SDK apps. H...
Is there an Iphone SDK API to search resource files? I have a set of html file resources that I'd like the user to be able to search in, but I want to avoid reading the files into memory and searching them one by one. Is there any API that can help me do this? ...
HI all, What is difference betwin self.myVariable = obj and myVariable = obj, when i use @propery/@synthesize for it ...
I have a NavigationBar app with two views: a parent and a sub view. In the sub view I'm adding a button to the right corner as follows: - (void)viewDidLoad { UIBarButtonItem *tempButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"lock-unlocked.png"] style:UIBarButtonItemStylePlain target:self action:@selector(lock...
Hi There, When debugging the following code NSString *var1 = @"blaa"; NSString *var2 = @"blaaaaa"; NSString* script = [NSString stringWithFormat:@"Set_Variable( %s, %s )",var1,var2]; the %s placehoders in script are replaced with funny gibberish characters. Can you see any errors in the code. Many thanks, (Confused .NET developer tr...
Hi guys, I am creating my very first iphone app and need help here. My programming background is not C and I am bit lost. Basically what I want my application to do is to display random bitmaps and let user touch individual bitmap and validate them. The method I used to display the bitmaps is NSTimer with UIImage for the actual bitmaps...
I'm animating a UIView's frame property using a CAKeyframeAnimation on the view's CALayer and animating the "position" property. I'd like to be able to halt the animation at it's current state when the user taps the screen, but I'm unable to do so. I can halt the animation easily enough by calling [view.layer removeAnimationForKey:kFra...
Hi, I have two views with two tab means per view per tab and i m taking data from server. so i have to use viewDidAppear:(BOOL)animated. In this method i add table, progress view and label and i have used "[self performSelectorInBackground:@selector(getDataFromServer:) withObject:string];" . So when i select this view, it start to loa...
In my landscape-only iPhone application, I launch a UIImagePickerController to take a photo, but the live image displayed from the camera is in portrait orientation, with blank space around it. The image is rotated. Once the camera button is pressed, the preview is very messy, with most of the preview off screen, and views not correctly...
I need to encrypt a string on the iPhone and send it to a .Net web service for decryption. I am able to encrypt/decrypt on the iPhone and with .Net, but the encrypted strings from the iPhone cannot be decrypted by .Net. The error I get is "Padding is invalid and cannot be removed." The .Net code is from: http://blog.realcoderscoding.c...
Hi I am using my iPhone as a development device. Whenever I run an application on the iPhone with Instruments (Instruments->Launch Executable->my app), the app is launched but I get the error mentioned in the subject in Instruments. I have tried removing the device from xcode and adding it again as a development device but I still get ...
Do I have a leak with this statement? //Pass the copy onto the child controller self.childController.theFoodFacilityCopy = [self.theFoodFacility copy]; My property is set to: @property (nonatomic, retain) FoodFacility *theFoodFacilityCopy; The reason I think I have a leak is because copy retains the value and then my dot syntax prop...
I have an iPhone application that comes in differently skinned flavors, with different art assets and sounds, but all the same code. I've got things set up with multiple targets, but the problem I'm having is I have to have a different set of UIBuilder nib files, one per view per target, set up to point to the correct art for that targe...
There are number of functions that exist in OpenGL but not in OpenGLES 1.1 (for iPhone). Is there a list or resource that lists some alternative functions that can be used in OpenGLES 1.1? For example: gluOrtho2D glPolygonMode glVertex3f etc? Thanks ...
I am trying to access 61616 in my iPhone app and the SCReachability code indicates that I have a valid network, but I time out trying to write to 61616. Does anyone know: A. If the iPhone EDGE/3G network has a limited port range or isn't allowed to connect to this port? B. How I can check explicitly for access to this port. Here is my ...
I'm writing an iPhone App, and I'm finding that as I add features, predictably, the permutations of state increase dramatically. I then find myself having to add code all over the place of the form: If this and that and not the other then do x and y and set state z Does anybody have suggestions for systematic approaches to deal with ...
HI, I am developing an application for an esteemed client in Australia. They have certain copyright issues when it comes to uses outside Australia accessing the content via the app. Is it possible to have a local and an international version of the app, both available via iTunes Store? The international version will only have permissib...
I'm afraid I introduced a memory leak or something to version 1.2 of my iPhone app. When I use 1.2 version I notice that my battery drains a lot quicker then with 1.1 version. For comparison, with 1.1 version the battery would last whole day and still have plenty of juice in the evening but with 1.2 I find that I have to plug it in mid a...
How would you guys go about creating online play capabilities for an iPhone game? Obviously, one could poll the server every so often, but is this realistic given the capabilities of the device? Assume you're polling the server every second or two and retrieving 100 bytes of data... Is it possible to retrieve the data in the backgroun...
Hi I want to get an NSData object's contents from a URL. What is the more efficient way of doing this in terms of memory usage dataWithContentsOfURL (or initWithContentsOfURL) or using NSURLConnection? Should I use NSData *data = [[NSData alloc] initWithContentsOfURL:myURL] or NSData *data = [NSURLConnection sendSynchronousRequest:...