iphone

iphone gps distance b/w two points

i want to know that how to find the distance between from current location to another plz help me ...

how to add an icon to an UIActionSheet button?

Hello everyone I hope to know how to add an icon to an UIActionSheet button? I checked some document but no result. Welcome any comment Thanks interdev ...

How to integrate twitter into iphone application using oauth

I have integrated PlainOauth from the source http://github.com/jaanus/PlainOAuth in my application. It is not working for me. it is giving the message Status posted. HTTP result code: 401 When posting the posts to the twitter. Do any one have faced this problem before. can any one suggest me how to resolve this? ...

Problem with app on device

When I run my app with simulator every thing is ok.also when i run it on device (ipod touch 3G) for the first time,i have no problem but if i close my app and run it again,it hangs(no button working & just i can uninstall it) and if i try to minimize it ios seems out of action(every thing is being black) how can i solve this problem ? ...

getting ios 4 camera exposure data during live capture

Hi Ive searched everywhere and havnt managed to find an answer to this question so I thought Id ask it here. Im currently using the AVCaptureVideoDataOutput to and CaptureOutput to get frames from the camera in real time at 30fps. I have left the default settings of autoexposure and auto focus etc. I want to be able to query the camera...

Toolbar floats over the Movie launched with MPMoviePlayerViewController

Hi All, I am trying to launch a movie from within a subview of a toolbar view. The movie plays but the problem is that toolbar floats on top of the movie. I believe the MPMoviePlayerViewController is supposed to take care of this for us because it opens as a modal view. But I am not sure why this is case for me... Any help to this ...

Adding/removing sections/rows with UISwitch similar to Wi-Fi Networks switch of the Iphone

Hi, I am trying to make 2 switches, one that will add a section with 3 rows and one that will add a row in a existing section. if (alertSwitch.on == YES) { alert = YES; [myTable beginUpdates]; [myTable insertSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade]; [myTable endUpdates]; [myTable...

UISwitch customization

Hey, Because the the UISwitch is not so easy to customize i decide i wanna build one alone. that works pretty good except for one thing. i was subclassing UIView when i was building it and now i dont have the "ValueChanged" control that i need for the Interface builder. can some1 tell me how can i add ControlEvents to my custom control ...

how to animate + symbol to disappear on table cell

i have an table view and + symbol is on the every cell of table view ,i should able to see disappearing + symbol by animating whenever i selected the cell ...

How to check if the value in an NSDictionary exists in an array of dictionarys

The title is a bit confusing...I'll explain I have an NSMutableArray I am populating with NSMutableDictionary objects. What I am trying to do is before the dictionary object is added to the array, I need to check whether any of the dictionaries contain a value equal to an id that is already set. Example: Step 1: A button is clicked se...

TabBar Controllers iphone

Hey Guys, Can you please explain me how to add a tab bar controller to the UIViewController..I think I have problem doing this..please help me..this is what I did so far..I added tab bar controller from IB and created a IBOutlet and made connections from file's owner to the Tab bar controller I added..when I run the app it displays a wh...

UIBarButton does not have a 'press' animation

I have a UIView that I am loading and it has a navigation bar with a 'Done' barButton. When I leave the navigation bar the default color, everything is fine. When I make it have a black tint, the 'Done' button works fine but it does not have the pressing animation that buttons usually have. It doesn't look as thought the button is bei...

[iOS]How to make a "snapshot" of the current view's state

I need to make a snapshot or a screenshot - call it as you like- of the current view and then display it in the modal view. Because if I just write this in the ModalView's View controller MyAppViewController *viewController = [[MyAppViewController alloc] init]; self.view = viewController.view; All the methods of the MyAppViewControl...

In xcode, can I make random() or arc4random choose from a set?

Suppose I have a list of numbers, ie. (240, 320, 640, 920) and I want to select one of these four numbers at random. Can I do this with random or arc4random? ...

create empty NSDate object

Is this ok? NSDate *myDate; Because I used something like this before: NSDate *myDate = [[NSDate alloc] init]; if (something) myDate = thisDate; else myDate = thatDate; [myFunction initWithDate:myDate]; I always got "Value stored to 'myDate' during its initialization is never read". If I do something like this if (some...

Using libmms and audioqueue

I've been playing with libmms and iPhone for a bit, and I have managed to connect and read from the mms stream, but after this I'm at a loss of how to send the data from mmsx_read into the AudioQueue, I assume it will have to be using the AudioQueueNewOutput method from Audio Queue Services... I've spent quite a bit of time searching but...

System.IO.Path equivalent in iOS

There are a lot of nice little functions in System.IO.Path like replacing a file extension, append to a path, getting a filename, getting a directory from a path in C#. Is there an iOS equivalent or somewhat close API? thanks! ...

How to trigger call by activating Loudspeaker?

I am Triggering a call from my App,But I want to trigger a call by enabling loudspeaker programmatically.... ...

Using Structs in Objective-C (for iOS): Premature Optimization?

I realize that what counts as premature optimization has a subjective component, but this is an empirical or best-practices question. When programming for iOS, should I prefer using struct and typedefs where the object has no "behavior" (methods, basically)? My feeling is that the struct syntax is a bit strange for a non-C person, but t...

UIAlertView - Having some issues with getting a method to display a simple NSLog message

I am playing around with UIAlertView and am trying to simply display an NSLog message if the user clicks on the cancel button. I just can't figure out why absolutely nothing is happening. Here's the code that I have in place: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexpath { NSUInteger ro...