Advanced concepts in iOS & Swift, page 3
advanced2 min read
Optimizing iOS App Launch Time
An app launch is a race against the system's watchdog timer. The OS loads your app in two phases: pre-main and main. Optimizing both is key. The biggest footgun is ignoring the pre-main phase, where bloated dynamic libraries can kill performance.
advanced1 min read
Refining Objective-C APIs for Swift with NS_SWIFT_NAME
NS_SWIFT_NAME gives Objective-C code a Swifty alias without changing the original API. Use it to modernize legacy frameworks by removing prefixes for Swift consumption.
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