“show when run”

How do I show an image in a UIAlert view?

I found a bug in XCode 11.6 and/or Catalina 10.15.6. I have a work around listed below, but wondered if this a general problem that should cause concern? In brief, I extended NSString class in Objective C with some personal convenience methods. Here is simplified header for MyStringAdditiotions showing just one convenience method: @interface NSString (MyStringAdditions) (NSString *)unquote; @end The one method is code I wrote a long time ago to remove white space and then if needed remove quotes on a string using such code as NSString *myString = tquoted text; NSString *uqString = [myString unquote]; to return just uqString = quoted text. The code itself is irrelevant and I am sure it is correct, but I got reports from users that it stopped working in Catalina. I was unable to reproduce their problems until I noticed that when I compile and run my app in XCode it works fine, but if I quit XCode and launch the app just compiled in XCode directly in Catalina, in runs differently and q

I am totally stumped.I have a UIButton in a UITableViewCell. I set the UIButton.isSelected property to true from the UITableViewController. The code to do that is in an @IBAction method that a UIViewController unwinds to that I use to edit the selected row on the table view. The code runs. I even step through it and I see that it runs. But the UIButton doesn't show as selected.Anyone know what's going on here?

I'm currently making a tabbed app, and im having some troubles getting some things to show up during the test runs. How do you get the collection view that was made in a storyboard to show up when running the test on a device? everything is configured porperly in the storyboard, and other things show up in other tabs, like the navigation bars and such, but for some reason, i can't get the collection view to appear

I am a beginner and I´m following a course.They use a project where the labels an so on where already set.I wanted to make some changes but when I run the app they doesn't show.

i have a simple code running on Xcode 15.2 and is showing blank in the liveView I am expecting to see Hello button in default blue , which navigates me to empty screen when tapped can someone helpe me why preview is not rendering properly? thank you so much