uiwindow

UIApplication has a method keyWindow , however if an alert view is showing then this returns the window of the alert view and not the main window of the application. How can I get the app's main window? Espresso The UIApplicationDelegate usually has a reference to the "main window": [[[UIApplication sharedApplication] delegate] window]; Furthermore, UIApplication has an array of windows [[UIApplication sharedApplication] windows] . See the UIApplication Class Reference . I'm not 100% sure this works in every case but this should work: UIWindow *mainWindow = [UIApplication sharedApplication]

I have to set the external UIScreen's mode to run with the resolution 1024x768. First I search if the screen supports this resolution: if ([[UIScreen screens] count] > 1){ CGSize size1024; size1024.height = 0; size1024.width = 0; UIScreenMode *screenMode1024 = nil; UIScreen *secondScreen = [[UIScreen screens] objectAtIndex:1]; for(int i = 0; i < [[secondScreen availableModes] count]; i++) { UIScreenMode *current = [[[[UIScreen screens] objectAtIndex:1] availableModes] objectAtIndex: i]; if (current.size.width == 1024.0 && current.size.height == 768.0) { size1024 = current.size; screenMode1024

I'm writing an iPad app, and I'm trying to display a second UIWindow on top of the main window in my app. The main thing I'm trying to do is create a log in window ( how to present a login, with UISplitViewController? ), and it seems that creating a second window here might be a good option. I've made a very simple app to try this out. When the user hits a button, then I'm trying to show the second window. Here's the code: - (IBAction)showOtherWindow:(id)sender { UIWindow* otherWindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; otherWindow.hidden = NO; otherWindow

It sure looks innocuous enough. In my App Delegate, I check NSUserDefaults for a flag to show tips at startup. If it’s set then, at the end of applicationDidFinishLaunching: , I do this: TipsViewController *vc = [[TipsViewController alloc] initWithNibName:@“TipsView" bundle:nil]; [window addSubview:vc.view]; [vc release]; The idea is to show this view temporarily. (Note that it’s not a modal VC. No Navigation Controller at this point, plus there’s no navigation bar in this view anyway.) Once this view is dismissed, we’ll add our pre-empted UITabBarController ’s view to the window and

(iOS 7.0.3, Xcode 5.0.1) I have a second UIWindow in my app used to display a custom magnifier above the status bar. However, once I set the rootViewController of this window (for interface rotation & some other stuff), the main window goes black during the interface rotation animation. To reproduce: create single view iOS application and add the following to the main UIViewController. // To @interface: @property (nonatomic, strong) UIWindow *secondWindow; // In viewDidLoad: self.secondWindow = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds]; self.secondWindow.rootViewController