iphone

Where can I find a high level tutorial on iPhone game design?

Are there any high level explanations on how to go about designing a game for the iPhone? How about open source examples for something like pacman, etc? ...

Removing View from its SuperView, Notifying the Subviews on iPhone

Hello All, What event is fired when a view is removed from its super view? Do its sub-views receive any message? For example, I have subview2 and subview3 added to subview1 as in super_view -> subview1 -> subview2 -> subview3 if I remove subview1 e.g. by [code] [subview1 removeFromSuperview]; [/code] What event its subviews(subview...

Does iPhone OS reclaim user-space memory at exit?

I'm reading up on the leak-finding tools for iPhone development and intentionally inserting and looking for memory leaks in my small program before I get into a bigger, harder-to-debug project. It's no problem to identify a memory leak that, say, occurs in a regularly invoked method like responding to a touch event. The leak instrument...

Core Data Migration really Slow, Why does it happen at all?

I'm developing a desktop Mac OS X App that saves its very simple data into SQLite with Core Data and a companion mobile App for iPhone that simply needs to read data from the desktop App. Although they share the same Managed Object Model when I load the SQLite database on the mobile app the data takes several seconds to migrate the data....

Add name to the Address Book of the iphone.

Hi, In the iphone app,I've a form with details such as name,address. I need to save the name,address in the form to the iPhone AddressBook.Please someone help me how to do this. Thanks in advance. ...

Is it possible to make your uploaded iphone application auto-update?

I am about to upload my Iphone application to the apple store, however I intend to release more versions in the near future. Is there anyway to make my application auto update once I upload a new version to the apple store?. That is as I am about to upload version 1.0, once i upload version 1.x, can the user be notified of this or can th...

Running BASH script from iPhone app?

Basically I am wondering if it is possible to run a console script (.sh) from an iPhone App. The script is written to download a program from a repository that I set up, respring, then after a set time delete the program and respring again, so it needs root privileges, and is interactive in that the user can set how long the program will...

iPhone code leaks and I don't know why

Hi, this is a well known snippet, how to select a picture from the iPhone photo library: - (IBAction)selectExistingPicture { if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) { UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker....

Iphone app PNG sequence animation - How to use OPENgle optimally without crashing

hello everyone. i am making an animation in opegle with pngs and considering to use the highest qaulity compression and not use pvr conversion. Does anyone know the maximum amount of frames you can do before the processor starts getting chuggy? and i have a series of frames i would also note that my png sequence is roughly 75 frames a...

Drag to rotate in iPhone-app

Hello, I'm trying to drag a UIImageView according to an anchorPoint but the whole image move. In fact i have a view for my app settings and one parameter is setted with a dial (with a hand/needle(?)). I'd like the rotation center of the needle/hand doesn't move when i'm dragging it. Thanks for your future answers. ...

Where can I find an iPhone OpenGL ES Example that responds to touch?

I would like to find an iPhone OpenGL ES Example that responds to touch. Ideally it would meet these requirements: Displays a 3D object in the center of the screen like a cube Maps a texture to the cube surfaces Should move the camera around the cube as you drag your finger Should zoom the camera in and out on the cube by pinching Opt...

Iphone development start-up.

Thanks everyone for all the great answers. I collected all the advise into a single post. Here is the original question, answer below: Hello this is not a direct programming/development question, its more business of software. I've been talking with 2 entrepreneurs who want to create an iphone application. They are putting ...

Looking for tutorials on iPhoneCoreDataRecipes App

I am finding it very difficult to grasp how the Views are loaded and wired with the TabBarController in the iPhoneCoreDataRecipes App. Does anyone have any pointers on how to learn the concepts presented in this Apple sample App? I have read the other items on Apple developer site. - (void)applicationDidFinishLaunching:(UIApplication *...

Capture touches in a UITextField overlay view (OS3.0)?

Hello, I'm having incredible trouble capturing iPhone touch events in a UITextField rightView overlay. In OS 2.2.x I could implement the touches ended event to respond. However, in OS 3.0 the event doesn't seem to fire at all. My overlay is an icon the I put in a standard UITexField. It's supposed to bring up a dialog box when the user ...

How much space is alloted to application storage on the iPhone?

Does anyone know what subset of the iPhone's overall storage capacity is reserved for applications and application data? I am not talking about RAM, but rather disk space. I remember reading that only a portion of the iPhone's capacity was used for application data, while the remainder was used for music and media, however I cannot remem...

Can I move a UIAlertView?

I've been moving an alert view slightly higher so i can fit a keyboard on screen as well. I just do this by grabbing the frame of the alert and changing the Y after i have already shown the alert so that the frame variables are legit. This works fine on the simulator, but when I do this on the hardware, the alert starts at the correct po...

Very simple iPhone question. How to make UIPickerView with two columns?

I have read other questions about creating a UIPickerView with two or more columns but cannot find the exact solution. How is this done for the iPhone programmatically? How do you add static data? Thanks! ...

iPhone App Delete Photos

Is it possible to delete photos within an iPhone Application? My application takes pictures and puts them in the Saved folder on the iPhone. I want to allow the user to delete these pictures throught the application as well. ...

iPhone SDK: How can I add a scroll view to my application?

I am creating an application for the iPhone which involves having buttons which animate a image view, I created another view in which the buttons are held, however I would like to be able to horizontally or vertically, scroll this view of buttons. I have looked into adding scroll views and I have even followed a tutorial, But I just can...

Setting hidesBottomBarWhenPushed leaves bottom bar missing after View Controller is popped

I have the following setup: A tab bar app. On one tab there is a navigation controller. My workflow: When I push a new viewController onto the navigation controller stack, I set the hidesBottomBarWhenPushed property. This works great, the tab bar is "pushed" as the new view controller slides in place. The problem: When I pop this v...