Craig Grummitt craiggrummitt
proxpero
/ Permutations.swift
Last active
September 18, 2023 13:17
Generate the permutations of a Swift array.
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| //: Permutations | |
| // based on https://www.objc.io/blog/2014/12/08/functional-snippet-10-permutations/ | |
| // but updated for Swift 2.0 (Xcode 7.0) | |
| extension Array { | |
| func decompose() -> (Generator.Element, [Generator.Element])? { | |
| guard let x = first else { return nil } | |
| return (x, Array(self[1..<count])) | |
| } | |
| } |
TonnyXu
/ UIKit_System_Notifications.h
Created
January 18, 2011 01:37
All the notifications predefined by UIKit framework. Apple should provide this but they don't. So, take it if you need it.
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| // UIApplication.h | |
| UIApplicationDidEnterBackgroundNotification __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0); | |
| UIApplicationWillEnterForegroundNotification __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_4_0); | |
| UIApplicationDidFinishLaunchingNotification; | |
| UIApplicationDidBecomeActiveNotification; | |
| UIApplicationWillResignActiveNotification; | |
| UIApplicationDidReceiveMemoryWarningNotification; | |
| UIApplicationWillTerminateNotification; | |
| UIApplicationSignificantTimeChangeNotification; | |
| UIApplicationWillChangeStatusBarOrientationNotification; // userInfo contains NSNumber with new orientation |