The app in question has a MainView->ModalView pair. The ModalView is shown via UIModalTransitionStyleFlipHorizontal. In case of didReceiveMemoryWarning, MainView is dumped (since it is not visible) and the app stays "alive" but when you flip back there is a (very) short period of time when the screen is blank (since the modal dialog is r...
Hey, how would one replicate the effect on the iPhone when you rearrange app icons? It would need to avoid collisions and rearrange the UIViews while snapped to a grid. ...
Hi, I need some help. This seems to be a common problem I am having when am adding and changing views in my coding. And I would love to learn what I am doing wrong. Currently I am adding and removing views using the following calls from my view controller: [startView removeFromSuperview]; [self addSubview:secondView]; and then doing ...
Hey, is it possible to determine whether my UIView is visible to the user or not? My View is added as subview several times into a Tab Bar Controller. Each instance of this view has a NSTimer that updates the view. However I don't want to update a view witch is not visible to the user. Is this possible? Thanks ...
Hi, On view in IB I have numerous items (including view itself). ONLY one item has tag 0, yet following line works for ANY UITextBox other then the one with tag 0. Note that only ONE UITextBox has tag 0, why: (UITextField *) [self.view viewWithTag:0]).text = @"foo"; Interesting that when triggered event received for the element with...
Hi I apply the following transform to my view to display it in landscape mode. CGAffineTransform transform = CGAffineTransformMakeRotation((90.0 * M_PI) / 180); transform = CGAffineTransformTranslate(transform, +80, +80); Which works fine, now I have two or three other views I want to display in landscape. I would like to animate bet...
So, I have a custom UIView subclass which enables drawing of rounded edges. The thing draws perfectly, however the background always fills the whole bounds, despite clipping to a path first. The border also draws above the rectangular background, despite the fact that I draw the border in drawRect: before the background. So I removed the...
I'm making a simple iPhone app whose sole function is to update a UIView forever (until it exits). I tried this in applicationDidFinishLaunching and viewDidLoad: while(1) { // update view here } but that doesn't work- the app never finishes loading. I'm sure there's a simple solution to this, I just don't know what it its. Al...
I am trying to build a map with annotations very much like MKMapKit (google maps API) - but with custom maps for indoors. I have a PDF map (mapView) being loaded into a scroll view for the map as a CATiledLayer - this works great! I have a view annotationsView which draws the annotation bubble on top of the map exactly how I want it - b...
Hi, I'm having a fundamental problem with getting scrolling to work normally on my iPhone app. I have two views, each created in IB (although I've tried this programmatically and it makes no difference) which scroll very sloppily. Instead of the scrolling that we're used to (which is smooth and continues to scroll and eventually dampen...
hello all, How to change the background color of a view dynamically? Do I set a timer and assign the background color property of the view to change in a loop? How to achieve this functionality? ...
Iam a newbiew to iPhone development. Version of my SDK is 2.2 In my code, UIViewController is used to change view dynamically once the app is launched, a method in the UIViewController is called to know which view should be initialized along with parameters, which goes to a 'switch-case' and assign a view to current view according to th...
Hi Everyone, Maybe this is a silly question but I'm having a problem with switching the view in a subview. Let me explain the code structure: I have these class files: /classes/MySoftwareAppDelegate.h /classes/MySoftwareAppDelegate.m /classes/ViewController.h /classes/ViewController.m /classes/LoginController.h /classes/LoginControlle...
I need to play frame based animations. I tried the UIImageView with animationImages but it doesn't give me any control over my animation. I can't pause it, I can't mask it, I can't know the current frame etc. So I subclassed UIView and created something I called AnimationView which takes the array of images and does the animation using ...
I am very new to iPhone Development so pardon me if this is a novice question. I have an app with a RootController that controls loading the various views. It initially loads a MenuView. The MenuView has a button that when a user clicks I want to open a whole different view (called InfoView) that displays some information about the ap...
I have narrowed down an ugly bug, but since it seems like something internal to the nib/Interface Builder, I'm at a loss of what to do next. I've got a UIView created in IB which functions as a custom dialog box. It shows a message and two buttons. (Proceed or Cancel.) Both buttons have a Background image set in Interface Builder. Some...
I am trying to load a UIView with multiple data. The problem is data is not displays in first load but loads it in subsequent clicks. Can you help me trace the problem. FirstViewController.h #import <UIKit/UIKit.h> @class SecondViewController; @interface FirstViewController : UIViewController { IBOutlet SecondVie...
I have always been a bit unclear on the type of tasks that should be assigned to viewDidLoad vs. viewWillAppear: in a UIViewController subclass. For example, I am doing an app where I have a UIViewController subclass hitting a server, getting data, feeding it to a view and then displaying that view. What are the pros and cons of doing th...
Hello, i have got 2 GUIs and 2 Controllers 1 is called landscapeguicontroller and the second is called highguicontroller. Now generally i call the highguicontroller, and when i rotate my iphone it detects that and then it shows the landscapeguicontroller: Code: landscapeguicontroller *neu =[[landscapeguicontroller alloc] initWithNibNa...
Is it possible to set Alpha to .75 or .50 (transparent) for Parent view but the Child views/controls are opaque (Alpha channel 1.0 - completely visible). Whenever i set Alpha of my main UIView to transparent, all the child views/controls are also shown as transparent. Is there any workaround? ...