How can I implement tweetie like swipe menu? I'm done with developing a tableviewcontroller with a customcell. The customcell implements touchesbegan and touchesMoved. It also reports swipe gestures via a selector to the parent tableviewcontroller. Now how should I go about hiding the "Swiped" cell and replacing it with a "swipe menu v...
How can I animate my "removal of tableviewitems" when the user changes between segments in the UISegmentControl? The behaviour should be similar to "Missed/All" calls in the Phone App. ...
Hi, I shift to my view by [[self navigationController] popToViewController:controller animated:YES]; In that ViewController, I'm not able to get a notice, that it comes back to front (e.g. by viewWillAppear). I want to reload a table, as soon as the view is visible again. How do I get a notice, that the view comes back on the scree...
After launching a video using MPMoviePlayerController's initWithContentURL:, is it possible to cache the downloaded video so that the next time the video is played it can be loaded via a local file:// URI? I understand that it's possible to do my own downloading and then launch the movie player, however I would like to take advantage of ...
Hi, I'm currently in the process of deciding whether or not to use Core Data for managing the data in my iphone application. The application involves putting together a fairly sizeable library of content which needs to be localised and has a fair few relationships. One benefit I thought of using core data would be that I could perhaps b...
I have a UITabBar with a number of UITabBarItems. I've assigned a different view controller to each of these. I want to load some data etc., when each button is clicked. Therefore I will like to know where to put that code? I tried implementing viewWillAppear and viewDidLoad in the view controller but those didn't get called. ...
I am trying to use Lua on the iphone. On Mac OSX, in a normal Cocoa application (not iPhone), I used the following code: lua_State* l; l = lua_open(); luaL_openlibs(l); luaL_loadstring(l, "print(\"hi from LUA\");"); lua_pcall(l, 0, 0, 0); I downloaded Lua 5.1.4 from lua.org/ftp and I compiled it for Mac OSX. In the Xcode project, I h...
When changing the center point of an 10 degrees rotated view, the specified coordinates for the center point will not match the coordinate system of the superview. As an example, when you want to go straight up by y - 50, and no horizontal movement (i.e. x = theRotatedView.center.x), the shift in y-direction will be rotated. The view wi...
In the application I'm working on, I'm generating a username and password and storing them in [NSUserDefaults standardUserDefaults]. I know there's some system-wide information you can retrieve from there; does that mean all the applications on the phone have access to everything in there? I'm currently prefixing the keys I'm using in th...
I ran into a situation that seems to suggest otherwise. In the following code snippet, if I remove the line: self.navigationController = nav, the root controller's view won't show up, suggesting to me that addSubview might not actually retain the view as otherwise suggested. Any idea? - (void)applicationDidFinishLaunching:(UIApplicati...
I have an NSString and would like to get the number of occurrences of a particular character. I need to do this for quite a few characters, so it would be nice for it to be quick. In case it makes any difference, it's actually an NSMutableString, and the characters will all be uppercase English letters. ...
I'm sure this must be a stupid question, but I've scoured the interwebbings and can't find the answer. Plenty of people talk about using the Generation Gap pattern, in which you have an NSManagedObject subclass that is generated from your model, and then subclass that to add transient properties and behaviours. The benefit of this is tha...
Has anyone got the YAJL Json parsing framework to work with iPhone? And if you have can you post simple instructions on how to link to it. I want to use it with the MGTwitterEngine framework. Currently I am getting these errors.. "yajl_get_error" referenced from .. and a few tohers very similar. YAJL http://lloyd.github.com/yajl/ M...
How would I get an integer value out of an NSMutableArray? ...
I've got a standard UITableViewCell where I'm using the text and image properties to display a favicon.ico and a label. For the most part, this works really well since UIImage supports the ICO format. However, some sites (like Amazon.com say) have favicon.icos that make use of the ICO format's ability to store multiple sizes in the same ...
Hi, I had my app perfectly working on iPhone OS 2.2.1 but now I am trying to make it work on iPhone OS 3.0. And my application crushes, apparently because of having a UINavigationController in UITabBarController. I get the following error: 'NSInternalInconsistencyException', reason: 'Changing the delegate of a tab bar managed by a tab...
Hi, How can I change the color of navigation bar from its default blue color? Thanks. ...
I want to rotate a layer continuously using byValue, but I can't make it work correctly. I want to rotate by 6 degrees every second, to have a full rotation in 60 seconds. If the initial rotation of the layer is 0, everything is OK. The problem is when I try to set an initial fromValue: If I set the fromValue to 90 deg, the animation w...
I have a UIWebView in a viewcontroller, which has two methods as below. The question is if I pop out(tap back on navigation bar) this controller before the second thread is done, the app will crash after [super dealloc], because "Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result...
I'm working through a somewhat tricky iPhone crash, and it looks like the culprit is an NSString being prematurely released. I've switched on NSZombiesEnabled and can see that the NSString is a zombie at the time of the crash. However, I can't determine when the object is being released/dealloced--I've combed through my code looking for ...