I am trying to implement a character counter for a UITextView, but have found the counter to be inaccurate in the following situation: Enter a few characters of text, such as "The" Tap return 25 times Hold down the delete button to delete the text (and hold it down until the cursor gets to the top) When the cursor reaches the top (and ...
Is it possible to have an embedded MKMapView rotate to always face the direction the iPhone is facing? Basically I want to mimic the Map app rotation feature on my own app. I see that the iPhone SDK does not expose the functionality. However, I wonder if it would work to rotate the entire view using CGAffineTransformMakeRotate. Would...
I'm trying to implement undo support using Core Data on the iPhone and I ran into a few problems. I currently have a couple of managed objects set up but when I make changes to their properties, these changes don't get recorded by the undo manager. From my understanding, Core Data is supposed to have this automatically set up and I shou...
Can we enable the cut copy paste menu for a UILabel as it is for a UITextField? If not, and I need to convert my UILabel to UITextField, how can I enable the cut copy paste menu and not allow the content to be modified? ...
Part of my app caches web pages for offline viewing. To do that, I am saving the HTML fetched from a site and rewriting img urls to point to a file on the local store. When I load the html into a UIWebView, it loads the images as expected and everything's fine. I am also caching stylesheets in this fashion. The problem is that when I pu...
Hello everyone, I was wondering how I can format the textField that I'm using for a phone number (ie like the "Add New Contact" page on the iPhone. When I enter in a new mobile phone, ex. 1236890987 it formats it as (123) 689-0987.) I already have the keyboard set as the number pad. Thanks! ...
Hi, What is the easiest way to get a duration of an audio file? I could create an object of AVAudioPlayer, initialize it with URL and than get the duration, but this way is too long. Is there an easier way? Thanks. ...
The user will be able to add or change some value (property in my model with Core Data) in one view, when the user switch to another view, I want to show the newly added/changed value with an animation. Is there a way to get a notification that there has been a change or an update for a property with Core Data? ...
I'd like to override UILabel's setText method but I'm not sure that A) it's possible and B) if maybe there's a better way to achieve what I'm trying to accomplish. I have a subclass of UIView that has a UILabel property as one of its subviews. I'd like to know when the UILabel's "text" property changes so I can adjust the size of the r...
Hi, I have got an audio file which is quite quiet. I'd am playing it using AVAudioPlayer, but I can barely hear anything, especially without headphones. Is there a way to increase the volume of an audio record? Thanks. ...
Hello, Apologies for the seeming obviousness of this question, but for whatever reason I haven't been able to find a definitive answer in the Apple documentation about where and how Settings.bundle password info is stored. My question: if I need to store some credentials for an app, and I use a Settings.bundle so that the password is en...
Hi, I am creating an audio-recording application and I need to know how much disk space is available (not ram). How can I retrieve it? Thanks. ...
Greetings, Problem: I have a main view, that already is associated with a xib file, an appdelegate class, and a controller class. Now, opening its xib file in interface builder, I add a UITableView. Then, in its controller class, I create the IBoutlet code to use it, let's say: tableView. Questions: 1) Where do I go from here in...
Here's a little blogpost on the library: http://www.andrewljohnson.com/article/Customizing%20UINavigationControlBar%20-%20Controls%20and%20Images And here's a link directly to the GitHub repository: http://github.com/andrewljohnson/NavControlBar/tree/master I searched SO and the rest of the internets for how best to do this recently, a...
This is more of a philosophical question than anything, so give me your thoughts. The iPhone SDK documentation specifies that you may have a tab bar controller contain a navigation controller, but you can't have a navigation controller contain a tab bar controller. It seems that there are times when you might want to organize views with...
I have a UINavigationController onto which I push a 'loading screen' UIViewController whilst I asynchronously connect to a server. The push is implicitly animated with that sliding effect. If an error occurs whilst connecting, I pop the loading screen controller (again animated) and display an alert to the user. All is good if I pop ...
I'm trying to let a player tap, drag and release a card from a fanned stack on the screen to a 4x4 field on the board. My cards are instantiated from a custom class that inherits from the UIImageView class. I started with the Touches sample app, and I modified the event handlers for touches to iterate over my player's card hand instead ...
Hi, I want to get amount of taps anywhere on the screen. Here is my code: -(void) touchesEnded: (NSSet *)touches withEvent: (UIEvent *)event { DebugLog(@"touches: %d", [touches count]); } This method is implemented in an active view controller. But it doesn't detect multiple taps - it reports me them as a single tap. How can I...
Memory leak problem - NSConcreteData // to set tip - photo in photo frame NSData *data=[NSData dataWithContentsOfURL:[NSURL URLWithString:pathOfThumbNail]]; UIImage *cellThumbImg; if([data length]>0){ cellThumbImg=[UIImage imageWithData:data];} else { cellThumbImg=[UIImage imageNamed:@"130X90.gif"]; } UIImageView *imgView=[[UIImage...
I've been trying out some of the view code from Erica Sadun's book "The iPhone Developer's Cookbook" and found some code I don't understand. Here's the code for a loadView method: - (void)loadView { // Create the main view UIView *contentView = [[UIView alloc] initWithFrame: [[UIScreen mainScreen] applicationFrame]]; contentView.b...