Hello, My tabBarController-based app has several tabs. Each has a custom viewController class, the only difference being the way the instance is initialized. Is there a way to make interface builder send the different tabs custom init parameters? Currently I'm doing the initialisation in viewWillAppear, but for a bunch of reasons it wo...
Resolution: While trying to recreate this bug in a fresh project to submit to Apple, I discovered that it is specific to iPhone OS 2.1, and compiling for 2.2 fixes the problem. Stephen, thanks for your help; I'll be accepting your answer since it would have worked if the bug still existed or I wasn't willing to compile for 2.2. I hav...
Is my assumption that every controller which is presented with presentModalViewController:animated: need their own UINavigationController stack for their own hierarchy of drill down controllers? Meaning, say I have a top level controller It has its own navigation stack, and an action button which presents another controller via a modal. ...
I've implemented a custom view for my UITableView section headers (via viewForHeaderInSection). When in plain view mode, the default behavior seems to be that the cells float underneath the section headers and touch events fall through to the cells underneath. How can I have the custom section header view respond first to any touch eve...
I want to create a link on a UIWebView that emails content to the user. A simple example is: <a href="mailto:[email protected]?subject=Sarcasm&body=I » <b>love</b> <html> mail!">Hi!</a> Which creates a message that looks like this: -- begin message --- To: [email protected] Subject: Sarcasm I love mail! -- end message -- ...
This is not a garbage collected environment I have a class instance variable which at some point in my runtime, I need to re-initialize with a different data set than it was originally constructed with. Hypothetically speaking, what if I have an NSMutableArray or an NSMutableDictionary, would it be more efficient to do something such a...
Is it possible to create a custom textfield on the iPhone? What I would like to do is have an "alertview" that looks like it fits in with the app design and using an image as the dialog box/alert, not just the standard alertview. So, I'll handle all the graphics and input handling, but how does one pop up the keyboard and deal with inp...
My planned iphone application will work a remote https web service quite hard so until a user decides to upgrade from the free to pro version of my app I need to generate a trickle of click revenue per free user. I would like to embed a single line adsense widget within a native cocoa-touch iPhone application. The UI control I have in m...
I can animate the addition of a UIView to my app, it looks very pretty so thank you apple. However, how do I animate the removal of this view from the super view? I'm using: CATransition *animation = [CATransition animation]; [animation setDuration:1]; [animation setType:kCATransitionReveal]; [animation setTimingFunction:[CAMediaTimi...
What is considered best practice for animating view transitions on the iPhone? For example, the ViewTransitions sample project from apple uses code like: CATransition *applicationLoadViewIn = [CATransition animation]; [applicationLoadViewIn setDuration:1]; [applicationLoadViewIn setType:kCATransitionReveal]; [applicationLoadViewIn set...
I have several UIButtons which I use to set the current action when tapping in the main area. I would also like to allow the user to drag from the button directly into the main area and take the same action; essentially, the touchesBegan and touchesMoved should be passed on to the main view when touching the UIButtons, but also should s...
I have a class which extends UITableViewCell. For the purpose of this exercise, let's call it "CustomCell". In CustomCell, I have a UIImageView IBOutlet setup. The image instance name in this case is myImage. I wish to display this image based on certain criteria that's coming back from a server. That data is a dictionary which in this e...
I'm trying to create an image mask that from a composite of two existing images. First I start with creating the composite which consists of a small image that is the masking image, and a larger image which is the same size as the background: UIImage * BaseTextureImage = [UIImage imageNamed:@"background.png"]; UIImage * MaskImage = [UI...
Hello all, I'm trying to make a simple iphone app that has two buttons: Start and Stop. When you hit start it starts listening to the phone's microphone volume and makes label show how loud you're talking into the mic. When you hit stop, it stops listening. I found a great class called SCListener, but I'm not sure how to get it impleme...
On my iPhone app I have a UIImage instance. I want to get a derived a UIImage that is the result of the first UIImage where one of its colors (e.g. magenta) is made transparent. How can I do this? ...
The possible values for UIDevice.orientation include UIDeviceOrientationFaceUp and UIDeviceOrientationFaceDown. While it might be useful to know that the device is flat, this doesn't tell us whether it's flat displaying an interface oriented in portrait or landscape mode. Is there a way to find the current orientation of the GUI in ca...
I seem to be dealloc'ing something like the tab bar itself, navigation controller, or ???, and this happens when I go to a particular view controller and then hit the tab bar to a specific tab (eg, if I hit the middle tab, of 3 tabs, no problem, but if I hit the rightmost tab I get the crash). My program is basically complete and I have ...
Hey all, I used a utility application template to create my application, but I am using a UIImagePicker to pick some photos. The little infoButton, the i with a circle around it, shows up when the picker is displayed. If the infoButton was not in another class then I could call infoButton.hidden = YES; and it would hide it. Any ideas how...
I've got a few apps under my belt now, but I'm still relatively new to this. I'm looking for best practices advice or even a feature of the Cocoa Touch framework that I wasn't aware of, if anybody knows it. In the 1st app, I created Domain Objects in my Application Delegate, then would pass them off to my ViewControllers as needed. Fo...
I have programatically added a UIImageView. How do I make it send a message to my controller when the users clicks it, sending itself as the only parameter? ...