I have a UIView subclass that I manipulate a lot of graphics on based on touches. All the [self setNeedsDisplay] calls seem to be fine. However, I used an instance variable pointer to my same UIView subclass instance, and then tried manipulating it and then calling [UIViewSubClass setNeedsDisplay] from another UIView class, and DrawRe...
I'm using a UITableViewController for a menu in a game. The table view opens a a view controller for my custom UIView that shows the game. When the game finishes the UIView is notified (which is kinda ruining the MVC principals) and from there I am kinda lost. Questions: Can a UIView communicate with its controller? How? Can one contr...
I have a UIView which is accessed by two different View Controllers. Whenever the user presses a button through the view controllers, I increment/decrement a shared variable like: -(void) viewWillAppear:(BOOL)animated { [[self appDelegate] sharedData].count++; } The shared variable gets created and initialized in the app delega...
Hi guys! I have a problem and I will try to explain the issue: I have one main UIViewController (Whole screen) I have one secondary UIViewController (setbounds) I added my secondary view to my mainview using this: [mainController.view addSubview:secondaryController.view]; I created a third controller: modalController, i added it to m...
Hello All, What event is fired when a view is removed from its super view? Do its sub-views receive any message? For example, I have subview2 and subview3 added to subview1 as in super_view -> subview1 -> subview2 -> subview3 if I remove subview1 e.g. by [code] [subview1 removeFromSuperview]; [/code] What event its subviews(subview...
I'm trying to figure out how to use the different states of a UISegmentedControl to switch views, similar to how Apple does it in the App Store when switiching between 'Top Paid' and 'Top Free'. ...
In a UIViewController's viewDidLoad method, I do this: UIButton *b = [[UIButton buttonWithType:UIButtonTypeRoundedRect] initWithFrame:CGRectMake(0, 0, 100, 100)]; [b setTitle:@"Testing" forState:UIControlStateNormal]; [b setTitleColor: [UIColor blackColor] forState: UIControlStateNormal]; [self.v...
I rotate/scale a UIVIew using [UIView transform:] and this works well. However, as soon as I change the view's frame origin the contents of the view begins to scale 'weirdly' even though I am not performing any further CGAffineTransforms. Why does this occur? How can I prevent it? Update 1: The docs suggest that the frame is invalid a...
Hello, I have to calculate an angle beetween two UIImageView and i don't find how to get the UIImageViews coordinates(the four corners coordinates). Is there a property for that? thanks ...
This is pretty high level but Cocoa is big and I'm still trying to get my head around it. Can someone validate my expectations... Say I'd like to have a variable number of views (images of cars for example) on the screen that the user can touch and move around. Would you start by subclassing UIView with UIImage property (as opposed to U...
Hi, I've created a simple iPhone app which has two .xib files. In the app delegate at application did finish launching I display the first .xib file by calling: [window addSubview:myView]; and I do the same on an IBAction for a UIButton to change the view to myView2. What I'm finding is that there's a white bar of around 10 pixels wh...
Hi, I've added some buttons to an UIView (via addSubview) programmatically. However, they appear as overlays (so that I always see the last button only). How do I add new buttons below existing buttons? Regards ...
Hello, I have some buttons in an UIView. My problem is, that they get cut off at the right side of the UIView. How do I prevent this? I've checked already Interface Builders clip property, but it's no solution for this problem. Regards ...
hello! I have an animation block that worked fine when runnung the app on iphone OS 2.2. Now I compile the same code for iphone OS 3.0 and it doesn't work. UIViewAnimationTransition trans = UIViewAnimationTransitionFlipFromLeft; [UIView beginAnimations: nil context: NULL]; UIView *forview = [[self view] superview]; [UIView setAnimati...
I'd like to use the pinstripe background that shows up in the Settings app and many other iPhone apps behind table views. Is is already included in some graphics library? How can I make it show up in a UIView or UITableView? ...
Hello, I have a UIView where I use the touchesbegan event, but I realized that once I put my finger on it, the touchesBegan event takes like 1 or 2 seconds to fire. How can I make this happen faster? thanks!!! ...
I'm asking my ViewController for it's view.center property and drawing a new UIView that centers itself around this "center"... I am getting (160, 250) as a response. but when the new UIView draws it's below center... So I'm wondering who's giving me this info and what it relates to? This is clearly where the center of the view is in re...
Hello All, I have been in the process of learning to build iPhone applications for the last two weeks. I've gotten through a fair amount of content, and now I'm trying to create a modal pop up with presentModalView. I can can successfully create and slide up a view, but I notice that modal views don't provide you with a default navigat...
Much I've read talks about the advantages of setting your UI up in IB. And how when the nib is "awoken" all the objects in it "come to life". I'm experimenting with placing about 10 UIView objects into a nib that is owned by a ViewController. The UIView objects are of type MyView and are wired back to their respective properties in the...
Hi, I'm using a navigation controller for my app, because a lot of my views are hierarchical. However, I want to push a settings view when someone presses a button. However, I don't want to animate right to left, since I don't want to give the impression to the user that settings are a child of the view below it in the stack. Is there ...