iphone

Set a button background image iPhone programmatically

In Xcode, how do you set the background of a button as an image? Or, how can you set a background gradient in the button? TIA, Linda ...

overwriting part of Audio during recording in iPhone

Is it possible to overwrite a part of the recording with another recording. When a recording is done, user gets back to a particular point of time in recording. And right from that time, he initiates a recording, and this should overwrite the earlier recording. Is this possible with AVFoundation Framework available in iPhone? ...

difference between static and dynamic libraray in xcode for iphone

what is the difference between static and dynamic library in xcode?? and why apple dont allow us to make dynamic lib??? ...

How to avoid memory leak for this case?

Case 1: -(id)getAnObject{ Object *someObject = [[Object alloc] init]; //doing something return someObject; } Case 2: -(void)dealWithAnObject{ Object *someObject = [[Object alloc] init]; [assignTheObjectToOther someObject]; } Both Case 1 and Case 2 have some warning in XCode, what s...

overlapping issue on table view cell

Hi team, I am getting overlapping issue while using following code. I used custom cell and normal cell style for this form. Any suggestion is appreciated (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *RSVNIdentifier = @"RSVNCell"; CreateReservationViewCe...

how can i compare the button image and image name in array

hi i am new to iPhone.what i did is crating an array with image names like images = [NSMutableArray alloc] initWithObjets:@"image1.jpg",@"image2.jpg",@"image3.jpg",nil] i am creating 3 buttons and displaying button images from images array randomly by using random().now i have to compare the images in the array with button image if t...

How to read coordinates from file in iPhone

I have a text file that contains a list of coords to construct a path: 123,44 124,67 178,85 This file is included as part of the bundle. The question is how can I read the points from this file. In C++ there's fscanf, what about Cocoa? ...

Calibrating code to iphone acellerometer and gyro data

I'm concepting an iPhone app that will require precise calibration to the iPhones accelerometer and gyro data. I will have to simulate specific movements that I would eventually like to execute code. (Think shake-to-shuffle, or undo). Is there a good way of doing this already? or something you can come up with? Perhaps some way to gene...

NSXMLParser vs KissXML vs TouchXML which one is memory efficient ?

Hi, I have a large XML file ( around 1mb ) . i want to ask that if i parse the XML with NSXMLParser or KissXML/TouchXML. which will take less interim memroy ?? ( the memroy took during parsing ) . ...

how to send some data eg strings to a local web server with iphone sdk?

i want to send a file from my iphone which have some strings to a local web server with iphone sdk?how can i do it ?is there any sample code for it? ...

UIWebView and iPhone4 retina display

I have a UIWebView which displays some local text and images. Either I've made a mistake somewhere, or the UIWebView doesn't automatically handle the @2x suffix for high resolution images. So, my question is has anyone else successfully loaded @2x images into a UIWebView through the normal means, or do I need to do something special? Ca...

iPhone app crashes after loading it from background

I have an app that crashes when i try to load it after it has been put in the background. The first few times i put it in the background and relaunch it by multi-tasking (i.e double clicking the home button and getting the app in foreground) it works fine. But if i keep putting it in background and keep re launching it after a few ti...

Oath+Twitter IPhoneSDK

Does anyone know of a good example utilizing the twitter API and Oauth authentication for sending Twits iPhone SDK ........... I got stuck @ sending the twits .........I can make a successful login to twitter Via Oath+MGTwiiterEngine (Can check the credentials). Now based on that session I want to know how to send twits.. Or either i ...

search string in html files in iphone

Hello I am very new to iphone.In my iphone application there are about hundred html files.I would like to search a string that the user enters in all these hundred html files and return the files that contain the string specified. Is there any way that i could attain this in iphone? Please forward your valuable suggestions. Thanks in ...

Core Telephony -- Call Event Handler

Hi, I wish to detect the call state after my app resumes the active state from the background. Im using the following piece of code for this: CTCallCenter *callCenter = [[CTCallCenter alloc] init]; callCenter.callEventHandler=^(CTCall* call) { if (call.callState == CTCallStateDisconnected) { NSLog(@"Call has been disconnected...

How to use UITableView when total number of sections and rows are unknown (and potentially large)

Normally to use UITableView, the number of sections and rows per section are known. But what if they aren't? I want to implement a lazy search, so that I actually search for the next match when new data needs to be displayed. Something on the lines of: db.prepareSearch(query) and then call something like db.nextSearchResult() when it ...

iphone Xcode project files encrypt

Hi, I need to send the project files to my client for running it on thier xcode to see the work in progress. Is there any way to encrypt the source files ? I have one option by sending .app file from simulator debug location and ask them to put it on the same path . But i need to send the code with encryption , is that possible ? Thank...

UIView Being resized for no reason

Ok, here's the setup: -I have my main view controller. -Its one and only subview comes for another view controller that sets its own frame to (0, 0, 1024, 748). -My app is in landscape mode. For some reason, the subview of my main view controller is being resized to something like (0, 0, 1280, 400) somewhere between after its initia...

how to set rect inside rect

I need to set Rectangle inside CGRect. how can i do that. ...

iPhone optimized code to do accordion style(expansion/collapse) ??

Hi, Could someone share me some good idea of doing an accordion style(one which can expand and collapse on touchesEnded or some button) of display for text ?? I already have done in some manner...but lookin forward for a better version..would be nice if it could be animated too... ...