How to create exception breakpoints in Xcode
Swift version: 5.4
Exception breakpoints are a powerful debugging tool that remarkably few people know about, so please read the following carefully and put it into practice!
A regular breakpoint is on a line you specify, and causes the debugger to pause execution at that point so you can evaluate your program's state. An exception breakpoint tells the debugger to pause whenever a problem is encountered anywhere in your program, so you can evaluate your program's state before it crashes.
Exception breakpoints are trivial to set up: go to the Breakpoint Navigation (Cmd+7), then click the + button in the bottom left and choose Add Exception Breakpoint. You can leave it there if you want to, but it's preferable to make one further change to reduce unnecessary messages: right-click on your new breakpoint, choose Edit Breakpoint, then change the Exception value from "All" to "Objective-C".
SPONSORED Join a FREE crash course for iOS devs who want to become complete senior developers — from October 18th to 24th. Learn how to apply iOS app architecture patterns through a series of lectures and practical coding sessions.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 7.0 – see Hacking with Swift tutorial 18
Similar solutions…
- What are Swift error breakpoints?
- What are breakpoints?
- How to create live playgrounds in Xcode
- How to create a SpriteKit texture atlas in Xcode
- How to make Xcode play sounds while debugging
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
