I have the UIApplicationDelegate protocol in my main AppDelegate.m class, with the applicationDidBecomeActive method defined. I want to call a method when the application returns from the background, but the method is in another view controller. How can I check which view controller is currently showing in the applicationDidBecomeActive method and then make a call … Read more
In my app, I am using a navigation controller. Later on in some view I am using presentViewController for showing a zoomed image. Also I am not using a Storyboard or nib. I am getting this error in iOS 7 only. It works fine in iOS 6 and earlier: Presenting view controllers on detached view … Read more
My problem is that I was looking for way to use both storyboard and xib. But I can’t find proper way to load and show storyboard programmatically. Project was started developing with xib, and now it’s very hard to nest all xib files in storyboard. So I was looking a way to do it in … Read more
I would like to customize the background (and maybe the border too) of all of the UITableViewCells within my UITableView. So far I have not been able to customize this stuff, so I have a bunch of white background cells which is the default. Is there a way to do this with the iPhone SDK? … Read more
I’m trying to submit an app with the Xcode 6 GM, and I get this error on validation. The app has an action extension and a dynamic framework that’s shared between the extension and the app itself. I don’t have a file called ‘Frameworks’ anywhere in the project, so I’m really not sure what this … Read more
I want to leave a bit of space at the beginning of a UITextField, just like here: Add lefthand margin to UITextField But I don’t know how to do that with Swift. 23 Answers 23
I’m having trouble trying to achieve some very basic layout behavior with Auto Layout. My view controller looks like this in IB: The top label is the title label, I don’t know how many lines it will be. I need the title label to display all lines of text. I also need the other two … Read more
It’s possible to add extensions to existing Swift object types using extensions, as described in the language specification. As a result, it’s possible to create extensions such as: extension String { var utf8data:NSData { return self.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)! } } However, what’s the best naming practice for Swift source files containing such extensions? In the … Read more
Is there a way to insert a Table Header View (tableHeaderView) in StoryBoard (like we used to do in Interface Builder)? 3 Answers 3
I was using this in my iPhone app if (title == nil) { // do something } but it throws some exception, and the console shows that the title is “(null)”. So I’m using this now: if (title == nil || [title isKindOfClass:[NSNull class]]) { //do something } What is the difference, and what is … Read more
