iphone

maximum size of object

Hi what is maximum size of data that can a object hold ? thanx ...

iPad UISPlitViewController Common View

is it possible to have a common view for both master and detail view controllers. What if I need to add a header image(at top, the very first view) common for both the master and detail view controllers. When the device is in the portrait mode the width of the header image view has to shrink to fit to the detail view controller's view a...

table reload not working

Hello, I have used navigation controller and 3 screens A,B,C. I have used navigation controller delegate method in A ,where i have reload table data. Now when i m going same in B.But this time Class A delegate and table reload not working,same time Class B delegate and table reload is working. So here how can I reload table in B when th...

Quartz 2D or OpenGL ES? Pros and cons in the long term, possibility of migration to other platforms.

Hi all! I'm having a hard time deciding whether to go with Quartz2D or OpenGL for an iPad game. It will be 2D mostly, but effect-intense (simultaneous lighting effects for 10-30 objects, 10-20 simultaneous animations on the screen). So far, assuming i'm equally dumb in both technologies and have to learn them from the ground, i came to ...

Touch event missing when pushing new view

Hello, I am new in iPhone programming. At the moment I am trying to recognize a constant touch. For example I want the user to leave his finger on the screen for the whole application. I use a navigationcontroller which holds the different views. If the user now touches the screen in view1 and then the view is changed to view2 by pushin...

iphone app crash, crash log posted, help please

hi, we recenty had a programmer to develop a program for us but seems to have left us in the lurch with a part functioning application. my boss isnt happy at moment as we have spent a few hundred and have nothing to show for it at the moment. can anyone see any information in the crash log below as its gibberish to me. Incident I...

How to implement a reminder application ,just a clarification ?

Hello all, I know that the reminder application should display a badge or sound or kind of alert to the user . The only doubt I want to clear from you guys is , should I display the badge in some manual coding fashion (like [[uiapplication sharedApplication] setBadgeNumber:2])or I have to use Apple push notification service and push th...

How to test if a web service is available.

I am retrieving data from a web service with... NSString *myDataString = [[NSString alloc] initWithContentsOfURL:url encoding:NSUTF8StringEncoding error:&outError]; How can I handle a situation where the web service is not available? As it is now the app simply hangs up. Is there a way to test if a site is available? olso, initWithCon...

Stop Images from loading in UIWebView

I have a website that I wish to load in a UIWebView, but it is full of images and takes ages to load. The images are useless, and only serve to reduce the usability on the iPhone. I dont own the website so I cannot change the site's actual code. The webpage is heavily linked in to the web with ASP.NET and AJAX (needs external files), so...

Drawing and Animating with UIView or CALayer?

hello, i am trying to implement a graph which a uiview draws. There are 3 UIViews to animate a left/right slide. The problem is, that i can't cancel the UIView animation. So I replaced the UIViews by CALayer. Now, the question is if CALayer is appicable for this? Is it normal to draw on a CALayer like this? And why is a CALayer so slow w...

Voice transforming using OpenAL on iPhone

Hi there, I've played a little bit with OpenAL, and I must say that it's pretty fast, even on the iPhone. However, I still got one problem. My app is recording the user voice, and repeats what he said using OpenAL. I've modified the AL_PITCH value, but it's currently also changing the speed, which I don't want to ! Is there a simple way ...

How to reload a table view in a view controller in iphone?

I am new to iphone development.I have created a table view in a view controller. I want to reload the table view so that i can display the contents which are parsed previously in delegates. More over reloadData does only reload the cells. It doesn't take care of actually updating the underlying datasource. E.g. if i read data from an...

Problem with UINavigationController

Hi all! I'm creating an game in which I need to provide this facility of being able to come to the first screen from any level, and go to any level from first screen(in case of RESUME), for which I'm using a navigation controller. The problem I'm facing is I dont want this pushing to look animated so I wrote [self.naviga...

iPhone xcode array losing state after load

Right i've had a search around and can't find anything. @synthesize list; // this is an NSArry -(void) viewDidLoad { NSArray *arr = [self getJSONFeed]; self.List = [arr retain]; // if i copy the access code into here it works fine. } -(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath ...

Notification not being recognised

I am trying to post a notification without much success! I can do it ok for the keyboard without issue but now am trying a custom one as follows: In my rootview I have this .h -(void) allowEdits:(NSNotification *)notification; .m //this section is run in method to present the passcode entry form [[NSNotificationCenter defaultCen...

Does anyone know how to create an authenticated RSS reader iphone app?

Hi, I have been working on creating an RSS reader app for the iphone which allows me to view RSS from an external feed. However the project im working on I need to be able to view an Authenticated RSS feed which is behind a login. Im struggling to write the code to do this. I need the app to ask the user to enter: The url they wish to ...

Question related to UITextView

How to adjust height of textview programetically as we are typing the text textview should increase upwards with no limit.UIScrollview for textview is disable in our case.We are giving scroll for entire view to see upward contents in textview ...

CABasicAnimation delegate for animationDidStop?

I am following the example at the bottom of the page to call an animationDidStop function. http://www.informit.com/articles/article.aspx?p=1168314&seqNum=2 The author says "I have an object that is designed specifically to be the delegate of animations and all it does is hold a reference to the target object, accept the animationDi...

iPhone: Scrolling a UIScrollview While Entering Text into an Embedded UITextView

I have a view composed of a UIScrollView which contains a UITextField, a UILabel and a UITextView. I want to configure the view such that when the user types text into the textview, the scrollview will scroll to keep the line being typed visible. ...

How to observe when a UIAlertView is displayed?

Is it anyway possible to observe if a UIAlertView is being displayed and call a function when it is. The UIAlertView is not being created and displayed in the same class which I want a function to be called in. Its hard to explain but to put it simply I need to somehow monitor or observe if the view becomes like out of first responder...