iphone

How to show a loading message while UIWebView loads it's content?

I want to put a big spinner along with a "Loading message..." or a gif image, when UIWebView loads its contents so it won't just show a blank view. How should I do it? ...

Change in pitch of voice

Hi, I am creating an iPhone application in which when I make a call to anyone I should be able to change the pitch of my call voice in real time. So for that which framework or any third party library should I use? Thanks, Sunil. ...

iPhone SDK: Know when tab on Tab Bar is clicked?

I have a tab bar which displays different views when clicked. When you click a tab for the first time, it calls the viewDidLoad method. But, it only calls that the first time. Is there a method that is called when a user clicks back to that tab, since the viewDidLoad won't be called that second time? (I need to do this to update a UIT...

Object sent -autorelease too many times

I have this code that simple returns Today's date as a string formatted: +(NSString*) getTodayString_YYYY_MM_DD { NSDate * today = [NSDate date]; NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy-MM-dd"]; return [[formatter stringFromDate:today] autorelease]; } With instrument...

NSURLConnectionDelegate connection:didReceiveData not working

Hi All, I need some help regarding the NSURLConnectionDelegate method. - (void)startDownload { NSString *URLString = [NSString stringWithFormat:appRecord.imageURLString]; NSURL *url = [NSURL URLWithString:URLString]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; imageConnection = [[NSURLConnection alloc] initWithReque...

Replace existing XML file within iPhone app

Hey, I have an .xml file that is going to be shipped within my app. This file contains values that are read from it and saved as an array when the app launches. Each time the app is run, I want to check with the server if there is an internet connection. If so, I want to get the newest version of the .xml file from the server and repla...

UINavigation bar buttons

How can I create UINavigation bar with button like this ...

how can i read the integer value from xml document in objective-c

this is my xml document, i want to use the value of id and mlsid in in my viewcontroller. how can i read it. <Table> <ID>1</ID> <MLSID>70980420</MLSID> <STREET_NO>776</STREET_NO> <STREET_NAME>Boylston</STREET_NAME> <AreaName>Back Bay</AreaName <Table> i have created...

Core Location and speed measurements

Does anyone know if Core Location in the iPhone OS uses anything but simple vector math to calculate speed? I've read that the GPS system can provide speed measurements that can be accurate when position is not (I believe using the Doppler shifts of the signals). I've tried and failed to see if the iPhone does this. The question is basi...

Convert bitmap image information into CGImage in iPhone OS 3

I want to create a CGImage with the color information I already have Here is the code for converting the CGImage to CML, CML_color is a matrix structure - (void)CGImageReftoCML:(CGImageRef)image destination:(CML_color &)dest{ CML_RGBA p; NSUInteger width=CGImageGetWidth(image); NSUInteger height=CGImageGetHeight(image); CGColorSpaceRef...

how to create story book in iphone sdk?

Hi, I want to make iphone story book application. I want to use animation. Please help me Thanks! ...

Custom Font. Keeping the font width same.

I am trying to draw a string using quartz 2d. What i am doing is, i am drawing each letter of the string individually, because each letter has special attributes associated with it, by taking each letter into a new string. The string gets printed, but the space between the letters is not uniform. It looks very ugly to read . I read ...

Monotouch UIScrollView/UIPageView with UITableView as panel

Hi I'm building an app which is a guide to festivals. In the app I show lineups. You can see the Ui I have built for this on the video here: http://wmcstar.com/download.html The problem I have is that the scrollview/UIPageView - which does the left/right scrolling through the days, sometimes conflicts (i think) with the up/down scroll...

iPhone: Jump to next uitextfield in uitableview, how to?

In my iPhone project I'm using a UITableview with UITableViewCells containing UITextfields. I have seen in many apps that it is possible to use a next button to jump to the next textfield in the next cell. What is the best way to accomplish this? My idea is to get the indexPath of the cell with the textfield that is being editing and t...

UIViewController memory management

Hi I have a very basic issue of memory management with my UIViewController (or any other object that I create); The problem is that in Instruments my Object allocation graph is always rising even though I am calling release on then assigning them nil. I have 2 UIViewController sub-classes each initializing with a NIB; I add the first Vi...

getting the value of a filter at an arbitrary time

Context: I'm trying to improve the values returned by the iPhone CLLocationManager, although this is a more generally applicable problem. The key is that CLLocationManger returns data on current velocity as and when it feels like it, rather than at a fixed sample rate. I'd like to use a feedback equation to improve accuracy v=(k*v)+(1-...

How to load xib file with attached view controller ?

Hello all , I am using a xib file as a back view in coverflow component . and it is seeing nicely . The code for loading a xib file is : NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"TestMine" owner:nil options:nil]; backView = [array objectAtIndex:0]; Now I want to attach a view controller with this xib without cha...

iPhone:How to provide info button click flash effect for a Tabbar item?

Hello friends, I have a Tabbar controller in my application. I have to implement info button click effect(flashing effect) when i click on a Tabbar item. Is it possible to do? (or) Is there any other indirect way to give such effect(info button click) when i click on a Tabbar item? Thanks. For example to see: Please download msnbc new...

Switch between multiple views while respecting orientation

Hello! I have an MVC application with a single model and several views (something like skins). I want the user to be able to switch the views and I can’t get it working with interface orientation. The most simple approach looks like this: - (void) switchToADifferentView: (UIView*) newView { // self is a descendant of UIViewControlle...

Is it possible to play audio with ipod webpages?

I would like to have a page and either use m4a or ogg (other formats are ok but these are my preference) on my webpage. Does the ipod touch or iphone support webpages with audio? If so, is it HTML5 and what audio formats? (if html5 i'll assume i can use the audio object in javascript and not be forced to use the audio tag). ...