How to debug view layouts in Xcode
Swift version: 5.2
View debugging lets you visualize exactly how your app is drawing to the screen by exploding your UI into 3D. So, if you're sure you added a button but you just can't see it, view debugging is for you: you can spin your interface around inside Xcode, and you'll probably find your button lurking behind another view because of a bug.
To activate view debugging, first you need to be using iOS 8.0, either on a device or the simulator. Run your app, and browse to the view controller you want to inspect. Now go to Xcode and look just below the main text editor, where the row of debugging buttons live: you want to click the button that has three rectangles in, just to the left of the location arrow.
When you use view debugging your app is paused, so make sure and tell Xcode to continue execution when you're done by pressing Cmd+Ctrl+Y.
SPONSORED Are you tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically, and it only takes a line of code to setup. Start your free trial now and get 3 months off exclusively for the Hacking with Swift Community.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0 – see Hacking with Swift tutorial 18
Similar solutions…
- SwiftUI tips and tricks
- How to create live playgrounds in Xcode
- What is a UIViewController
- Building a menu using List
- How to use Instruments to profile your SwiftUI code and identify slow layouts
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
