Could I create an iPhone app that replaces/modifies the default clock screen saver and show something else instead (e.g. my own special clock or whatever)? How do I go about doing that? I'd appreciate a link to a tutorial on the subject, or to example code that does something like this. (disclaimer: total iPhone dev noob here) ...
My application is downloading a set of image files from the network, and saving them to the local iPhone disk. Some of those images are pretty big in size (widths larger than 500 pixels, for instance). Since the iPhone doesn't even have a big enough display to show the image in its original size, I'm planning on resizing the image to som...
Say I have app version 1.0 released on the app store. Then I want to release version 1.1. I will keep existing data that was copied out of the app bundle and into the app's sandbox. These are some XML config files and a sqlite db the user can write data to. These files could need updates that preserve their existing data. What is the b...
Hi I'm trying to display a UIActivityIndicatorView while background processing takes place. The below simplified code works when I try it in the simulator(the alert is displayed)..but when I download it to my phone from Xcode, the background thread does not seem to get called at all. (the alert never gets displayed) Any ideas? -(voi...
My client wants to encrypt/compress the html-code for their medical books in the iPhone bundle, to protect their IP. Whats is a good way to prepare this file for the app bundle, and what complementary libraries (C, Obj-C) should I use to do the decryption and decompressing on the first launch of the app? Copying the file to ~/Documen...
I'm running a debug build on the iPhone with Leaks. I'd like to break at certain points to see if particular leaks have occurred yet. This would allow me to narrow down where the leak is occurring by process of elimination. However, the debugger is ignored while Leaks is running. Any suggestions? ...
The first line of code creates a memory leak, even if you do [self.editMyObject release] in the class's dealloc method. self.editMyObject is of type MyObject. The second line incurs no memory leak. Is the first line just incorrect or is there a way to free the memory? //creates memory leak self.editMyObject = [[MyObject alloc] init...
I have been looking everywhere for this without any luck. If you go to google.com on the iphone when you focus in on the search field a little 'x' appears all the way in the right and if you touch it it clears the current value of the field. Anybody know how to accomplish this? ...
It seems like the built in UIImagePickerController cannot accept sources other than its device camera Roll. I would like to get the functionality of picking and enlarging pictures within my own app. Also I would like to allow the user to select the pictures and save it into their camera roll (so they can later use it as wall paper) 1) ...
I have an application in the app store. I have submitted 3 updates to the app. 2 of those 3 updates have been rejected based on something that has not changed at all since the original submission. I recognize that they have a different person each time review my application. However, the net effect is: How do I effectively contest a...
I'm looking for a primary source (or a really good explanation) to back up the claim that the use of autorelease is dangerous or overly expensive when writing software for the iPhone. Several developers make this claim, and I have even heard that Apple does not recommend it, but I have not been able to turn up any concrete sources to ba...
I'm trying to display an image while a sound is playing. I can get it to appear, but I'm having trouble making it disappear once the sound has finished playing. My code: -(IBAction)guitarChord:(id)sender { if (theAudio.playing == YES) { theAudio.stop; theAnimation.stop; } else { theAudio.play; ...
Hi, provisioning problem again. Refering to my question: http://stackoverflow.com/questions/609486/iphone-development-provisioning-assistant-step-3-public-private-key-problem I have another mac computer which needs to install the certificate. This page described how to "Saving your Private Key and Transferring to other Systems": http:...
I'm having a problem with AVAudioPlayer's volume. I can set theAudio.volume property to 1.0, but I'd rather just play the audio at the volume the user has his iphone ringer set to. Getting rid of the volume property defaults it at 1.0. This seems trivial, but I couldn't find a reference to it anywhere. Thanks a bunch! ...
Is there any way for a web application to access the location data of an iPhone without the installation of an additional iPhone client app? If not, the next best thing would be if any can recommend an existing native app, preferably free to the end user and as lightweight as possible, that does expose this information to Mobile Safari....
hello, I trying to develop a game for iPhone by using cocos2d. I need DRAG option in cocos2d. Is it possible to implement drag option in cocos2d ? ...
I am working on a project ( Slots Game ) using cocos2d. I need to add picker view to rotate the reel ( image chain ). But i can not doing this rotation.If you have a solution for this please give me the instruction that how can i do this using picker view or without picker view. Please ans me with help instruction. ...
Using cocos2d for iPhone game development, I am confused between Layer and Scene. For example, My simple game have several "UI Pages" like main menu, highscores, game board etc. So should I use Layer or Scene for every "UI page", and why? ...
I added a navigation control to swith between Views in my app. But some of the views shouldn't have 'Back'(the previous title) button. Any ideas about how to hide the back button? ...
I have my UITableView set up (in the standard way) to allow deletion on swipes. Whenever I have a sectionindex showing, however, the "Delete" button appears /below/ the section index: Perhaps I'm missing something obvious? I've tried setting the selected cell to be less wide in willBeginEditingRowAtIndexPath, but this removes the ...