uikit

The graphical elements of UIKit – what format are they?

For standard interface elements of the Apple's UIKit, how do apple store them? Are they stored as cocca touch code, pdf, images or other? Thanks Ross ...

Does iPhone support "greying out" inactive controls?

I have a control that goes inactive under some conditions in my iPhone app. I can [setUserInteractionEnabled: NO] on it and it doesn't respond to touches. Its appearance does not change however. Other environments I am familiar with "grey out" inactive controls. I wonder what is the idiomatic way to hint to the user that the control is i...

Retrieving a pixel alpha value for a UIImage (MonoTouch)

This question is a duplicate of 1042830, but MonoTouch-specific. Is there a way that's safer than allocating an IntPtr, drawing into it using CGBitmapContext and then reading bytes at the appropriate offset? ...

UIKeyboardTypeNumberPad on iPad

UIKeyboardTypeNumberPad doesn't display a number pad on the iPad. Instead, it shows the UIKeyboardTypeNumbersAndPunctuation keyboard. Is there something I'm missing, or has this been removed from the iPad OS? Thanks for your guidance! ...

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...

How do you load a view on top of another view in the iPad

How do you load a view on top of another view in the iPad like in the wordpress app when it asks you to setup your blog. Can you show or post me some sample code. I have an NSUSerdefaults setup so it will display this on the first launch. I would like this view to look like this http://uplr.me/files/p45064.png See how it has the shaddow...

iPhone - Is it ok to override UITableViewCell setSelected:animated

I am drawing custom UITableViewCells. My cells are opaque and are completely drawn in the drawRect of the cell to help with performance. I want to handle the look of a selected cell myself. If I don't, then the contents of my cell is covered up by the selectedBackgroundView that is added. Is it common or acceptable to override the se...

Clearing "may not respond" warnings for UIView and UIViewController

In an iPad app, I'm using a custom subclass of UIView with UIViewController. Here's the view header: @interface pdfView : UIView { CGPDFDocumentRef doc; } -(void)setDoc:(CGPDFDocumentRef)newDoc; @end And here's the controller header: @interface iPadPDFTestViewController : UIViewController { CGPDFDocumentRef doc; } - (void)...

How to load a UIView from a tap?

Hi, I'm new to iPhone Development and I did some examples and seen code and code and more code but I still can't get the when the user taps here show this view using this animation, and go back after (user taps a back button) I did some Tab Bar examples, Utility examples, etc but when I start a project from scratch the code never...

iPad title bars. Navbars or toolbars?

I see a bunch of apps for iPad with really cool title bars. These seem to be a combination of a navigation bar and a toolbar. They usually have a back button and a title as well as men other buttons. And a navbar only supports a left item, a right item and and title view. And the toolbar does not really support back buttons or titles. ...

drawRect not being called in my subclass of UIImageView

I have subclassed UIImageView and tried to override drawRect so I could draw on top of the image using Quartz 2D. I know this is a dumb newbie question, but I'm not seeing what I did wrong. Here's the interface: #import <UIKit/UIKit.h> @interface UIImageViewCustom : UIImageView { } - (void)drawRect:(CGRect)rect; @end And the imple...

How do I support the touch of the navigation bar label?

I have an editor that I am making, and I need a way of editing the document's title. I was considering touching the title of the navigation item and have a custom view appear. I did this in an initial version of the application with a button bar item (and target/action), but I cannot seem to find a way to do it with the managed navigati...

dismissModalViewControllerAnimated makes my app crash :(

I'm creating an iPad app, and I have two classes: NWRootViewController : UITableViewController and UINewFeedViewController : UIViewController. In NWRootViewController I have an UIBarButtonItem, which, when tapped, pops up a modal view controller called NWNewFeedViewController: // THIS CODE IS IN NWROOTVIEWCONTROLLER.M // New Feed -(IBAc...

Drawing selected state on custom UITableViewCell

I have a customer UITableViewCell whose whole display is drawn indrawRect. When it draws it creates CGLayers so that it can reuse certain pieces when something is changed. I have changed my UITableViewCellSelectionStyle to "None" because I don't want the default selected view to cover my drawing. My problem is that I call setNeedsD...

trying to draw scaled UIImage in custom view, but nothing's rendering

I've created a custom view class and right now just want to draw an image scaled to fit the view, given a UIImage. I tried just drawing the UIImage.CGImage, but as others have attested to on this site (and in the docs), that renders the image upside down. So, at the suggestion of an answer I found to another question, I'm trying to dra...

UITableView section index overlaps search bar

Hi: I want to display a section index in an UITableView with a search bar in the table view header (not section header). But the index strip is now overlapping the search bar. Is there an elegant solution to avoid this and let the index start below the table header? ...

remove image from tableViewCell created programatically

Hello, I would like to move an imageView contained on a cell and it works but creating a new image at new position keeping old image (then two are shown). How could I remove old one?? used code: UIImage *cellImage = [UIImage imageNamed:(@"%@", showIconName)]; UIImageView *imageViewToPutInCell = [[UIImageView alloc] initWithImage:cellIma...

view update problem on transition

Hello, when flip from one view to a new one, I get refreshing problem. New view contains a navigationItem with two buttons, one right, one left and when transition starts, I see buttons on opposite sides and not correctly positioned until the transition ends. Then view is showed correctly according to xib file. How to solve it?? ...

iPhone: Which Method to Use to Rotate View Back to Portrait Orientation?

I use... -(void)didRotateFromInterfaceOrientation: ... to adapt a view that has been rotated to landscape. However, I don't know which method to use when the view needs to be rotated back to portrait. ...

Strange UIKit bug, table view row stays selected

I'm facing what appears to be a UIKit bug, and it takes the combination of two less commonly used features to reproduce it, so please bear with me here. I have quite the common view hierarchy: UITabBarController -> UINavigationController -> UITableViewController and the table view controller pushes another table view controller onto ...