When is 'drawRect' called?
I have some custom drawing code in drawRect which also performs some calculation of sizes. When is the earliest I can be sure that this code has been loaded, e.g. if I want to modify it's containers size accordingly? ...
uikit
Unselected UIPickerView value
According to the documentation, if a UIPickerView has no selected value, the expected return from selectedRowInComponent: should be: "A zero-indexed number identifying the selected row, or -1 if no row is selected." However, if I check the value the very line after initializing one, its value is 0. Even if I then manually set it t...
Iphone UI Size / Layout Resource?
Is anyone aware of a website or download to reference for the size of UI elements or standard iphone interface stuff? What I mean is something that gives the height of elements like the status bar, tab bar, navigation bar, default tableviewcell height (and such things as width of accessory view, indentation, etc), default icon sizes, def...
Is it better to alloc/dealloc new UIBarButtonItems when toggling Edit/Done? Why?
Apple's documentation implies that for a UITableView editable with an "Edit/Done" button, you should create and destroy the button each time it's toggled. Here's a snippet of code "BonjourWeb" sample code project that does this: if (editing) { // Add the "done" button to the navigation bar UIBarButtonItem *doneButton = [[UIBar...
How to resize a UIPresentationFormSheet?
I am trying to display a modal view controller as a UIPresentationFormSheet. The view appears, but I can't seem to resize it. My XIB has the proper height & width, but it seems to get overridden when I call it like this: composeTweetController = [[ComposeTweet alloc] initWithNibName:@"ComposeTweet" bundle:nil]; composeTweetController.mo...
Changing view size when orientation changes
I want my UIView subclass to behave so that when it is fitted in portrait orientation is has a certain size and another size when fitted in landscape mode. Is it possible to have the view indicate to the view controller that's resizing it when the orientation changes that it has this "ideal size"? To clarify, I'm confident that this is...
How to make a UIView that is aware of highlight ?
I want to make a uiview that can be aware of highlight status, like a UILabel is when put inside a UICellTableView. ...
Animations make my app crash: How can I remove them?
In my app, I create view controller objects as I need them. When a view controller goes away, I get rid of it by calling -removeFromSuperview on it's view and then set the retaining property to nil. That way my app uses very low memory all the time. But there's a problem: I have heavy animations going on in some view controllers, and ev...
How do you allow the user to add items to a tableview in iPhone SDK?
Hi, I'm kind of new to this stuff. I was wondering how you can allow the user of your iPhone app to add new items to your tableview. If you're confused by what I mean, please look at the free app, ListGnome. ...
Problem adding UIBarButtonItems to a ToolBar
I have a UINavigationController with a UITableViewController in it. I want to show a ToolBar on the bottom with UIBarButtonItem's. The ToolBar is showing up, but the buttons won't appear. Anyone knows why? - (void)viewDidLoad { [super viewDidLoad]; [[self navigationItem] setTitle:@"Selections List"]; [[self navigatio...
Modal Tab Bar ViewController
I need to present a modal tab bar controller using interface builder. I'd like to be able to specify and design the tab bar controller in a InfoViewController.xib file, then present it from a variety of locations within the application using something like: UIViewController *vc = [InfoViewController create]; [self presentModalViewContr...
UIActionSheet position on landscape and portrait
UIActionSheet positioning is not centered when I open it in landscape mode. If I set bounds or change the frame. The contents inside the UIActionSheet which is a subview changes but the actual sheet remains in the same place which looks very awkward. How do I move the UIActionSheet along with it's subview to the center of the screen? ...
iPad modal view controller similar to Mail.app?
How can I create a modal window in my iPad app similar to the one shown on Apple's website for composing messages in Mail.app? Example: Thanks! ...
How do I code a green button in UIActionSheet?
I am using the code: { randomstatus=0; msg=[[NSString alloc]initWithFormat:@"Good job, do you want to continue?"]; UIActionSheet *actionSheet=[[UIActionSheet alloc]initWithTitle:msg delegate:self cancelButtonTitle:@"No" destructiveButtonTitle:@"Yes" otherButtonTitles:nil]; [actionSheet showInView:self....
UIView Animation: Shrink
I'm looking to have my main view shrink to reveal the next view in the same way the Facebook app's views shrink when you press the top-left button. I already have it working with one of the included animations like this: [UIView beginAnimations:nil context:nil]; [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; [UIView setAn...
I don't know How to display transparent view like an image.
How to do like that? I don't know how to do..Help me. ...
Calculating string sizes on iPhone on a background thread
I've got some somewhat hefty string size calculations happening in my app (each one takes close to 500ms, and happens when the user scrolls to a new "page" in my app (like the Weather app). The delay only happens once per page, as the calculation only needs to be run once (and can even be cached for subsequent launches with the same data...
Can keyboard of type UIKeyboardTypeNamePhonePad be made to start in phone mode?
Is there some way to have a keyboard of type UIKeyboardTypeNamePhonePad start in phone number pad mode rather than alphabetic? The keyboard works well for what I need but I'd like it to start in the "other" mode since that is more likely what the user will enter. ...
How can I make a view start in landscape?
I have read a few questions about an app doing it through the info file but not a certain view. I just need the interface to be set up to start in landscape view. I managed to get near what I want with shouldAutoRotateToInterfaceOrientation:, but it only works after I rotate the view. I am kinda new to the documentation on this so I m...
pushViewController using UINavigationItem instead of UINavigationController
Hello, I have implemented a method didSelectRowAtIndexPath that should push another view. I have a code running properly using a navigationController but in this case I am using a navigationItem on a view. How could I trigger a view? Thanx Error log: 2010-03-25 00:09:52.459 TableArchive[1062:207] trigger 2010-03-25 00:09:52.461 TableAr...