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https://stackoverflow.com/a/16251810/2589276 I solved the problem above but got a new problem when I did the steps I was instructed to. Now I get a warning saying: Position is ambiguous for "Round Style Text Field" I tried setting fixed constraint for width also, but did not fix this warning. Any ideas? Are there any other information I should give for this problem? This screen shot when I do add constraint to x, leading space constraint (for x) and vertical space constraint from the bottom. I just want to set constraint for the Y and not get warnings, I do not use autolayout anyways. Edit:

I Just realized that the following code always creates a new TagsFeedViewController. Is this the default behavior of segues? Is there a way to configure iOS to not create a new destinationViewController every time? - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqualToString:@"showSearchResult"]) { TagsFeedViewController *destViewController = segue.destinationViewController; destViewController.query = query; } } Caleb Segues use whichever view controllers are provided to their – initWithIdentifier:source:destination: methods. It's not the segue

Every time when I merge other team member's iOS objc project, I got some strange conflict like this: <<<<<<< HEAD <rect key="frame" x="254.00000003476939" y="0.0" width="63" height="21"/> ======= <rect key="frame" x="254.00000010362709" y="0.0" width="63" height="21"/> >>>>>>> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX We never change the value of x, and we always give integer like value. Obviously, Xcode changed the value automatically. How to prevent this kind things happen? You could avoid checking in such modified value by convincing Git that the file content has not changed. That is possible

I am trying to access the initial viewcontroller of my storyboard. It is a navigation controller which is wired up to a second viewcontroller via a seque. So after my application did finish launching I want to directly show the viewController that is connected through the segue. I tried it out with code like this but it doesn't work ... UINavigationController *navController = (UINavigationController*)self.window.rootViewController; [navController.topViewController performSegueWithIdentifier:@"showLoginScreen" sender:self]; What am I doing wrong? 4 years later : If I look at my question again

I have a FirstViewController and a SecondViewController . I created a button in FirstViewController in order to perform a segue modally to SecondViewController . In SecondViewController I have a tableView showing a list of 8 items, as I select an item from that list, I dismissViewControllerAnimated: , going back to FirstViewController . What I would like to do is pass a string back to the FirstViewController . I used this post as a reference for my code: dismissModalViewController AND pass data back So this is what I have: in FirstViewController.h #import <UIKit/UIKit.h> #import "AppDelegate.h

In Attributes inspector there is an option Installed . I am unsure of it's meaning. Does it mean that the element will be present in any size class? It is for adding that specific view to the corresponding size class. If the installed is checked it will be added to the view hierarchy of that size class, else it won't be added. You can check more about this option in Enable And Disable Views . 来源： https://stackoverflow.com/questions/33975427/installed-option-in-attributes-inspector