According to Apple's Error Programming Guide , AppKit has an error response chain that NSResponder with willPresentError: and NSApplicationDelegate with application:willPresentError: etc.
But in iOS, UIKit is the lack of architecture for this. I found an open source project ErrorKit implemented a chain of error responders, but was just surprised why Apple did not provide support at the framework level. Or is there any other way to handle errors in iOS?
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