swift 3, swift2

概述Swift3: DispatchQueue.main.async(execute: { }) Swift2: dispatch_async(dispatch_get_main_queue(), { }) TimeInterval–swift3 NSTimeInterval–swift2 fileprivate-swift3 private-swift2 Data-swift3 NSData-swi

Swift3:

dispatchQueue.main.async(execute: {

})

Swift2:
dispatch_async(dispatch_get_main_queue(),{

})

TimeInterval–swift3
NSTimeInterval–swift2

fileprivate-swift3
private-swift2

Data-swift3
NSData-swift2

URL-swift3
NSURL-swift2

UserDefaults-swift3
NSUserDefaults-swift2

URLSessionDataTask-swift3
NSURLSessionDataTask-swift2

httpURLResponse-swift3
NShttpURLResponse-swift2

JsONSerialization-swift3
NSJsONSerialization-swift2

ComparisonResult-swift3
NSComparisonResult-swift2

VIEwController.present-swift3
VIEwController.presentVIEwController-swift2

[UIApplicationLaunchOptionsKey: Any]-swift3
[NSObject : AnyObject]-swift2

UIScreen.main.bounds-swift3
UIScreen.mainScreen().bounds-swift2

overrIDe func observeValue(forKeyPath keyPath: String?,of object: Any?,change: [NSkeyvalueChangeKey : Any]?,context: UnsafeMutableRawPointer?)–swift3
overrIDe func observeValueForKeyPath(keyPath: String?,ofObject object: AnyObject?,change: [String : AnyObject]?,context: UnsafeMutablePointer)—swift2

func application(_ application: UIApplication,dIDRegister notificationSettings: UIUserNotificationSettings)-swift3
func application(application: UIApplication,dIDRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) -swift2

[AnyHashable: Any]-swift3
[NSObject : AnyObject]-swift2

func getUserInfo(withUserID userID: String!,completion: ((RCUserInfo?) -> VoID)!) -swift3
func getUserInfoWithUserID(userID: String!,completion: ((RCUserInfo!) -> VoID)!)-swift2

UIApplication.shared.delegate -swift3
UIApplication.sharedApplication().delegate-swift2

NSArray? .object(at: 1)-swift3
NSArray .objectAtIndex(1)-swift2

Any -swift3
AnyObject-swift2

fileManager.default.urls(for: .documentDirectory,in: .userDomainMask)[0]-swift3
NSfileManager.defaultManager().URLsForDirectory(.documentDirectory,inDomains: .UserDomainMask)[0]-swift2

UItableVIEwCellAccessoryType.none-swift3
UItableVIEwCellAccessoryType.None-swift2

func numberOfSections(in tableVIEw: UItableVIEw) -> Int –swift3
func numberOfSectionsIntableVIEw(tableVIEw: UItableVIEw) -> Int —swift2

DateFormatter-swift3
NSDateFormatter-swift2

UIbarbuttonItemStyle.plain –swift3
UIbarbuttonItemStyle.Plain -swift2

IndexPath-swift3
NSIndexPath -swift2

tableVIEw.dequeueReusableCell(withIDentifIEr: cellIDentifIEr)-swift3
tableVIEw.dequeueReusableCellWithIDentifIEr(cellIDentifIEr)–swift2

tableVIEw.numberOfRows(inSection: 0) -swift3
tableVIEw.numberOfRowsInSection(0)-swift2

overrIDe var canBecomeFirstResponder : Bool {
return true
}-swift3
overrIDe func canBecomeFirstResponder() -> Bool {
return true
}–swift2

var hasText : Bool {
return nextTag > 1 ? true : false
}-swift3
func hasText() -> Bool {
return nextTag > 1 ? true : false
}-swift2

guard let value = element.value as? Int8,value != 0 else { return IDentifIEr }–swift3
guard let value = element.value as? Int8 where value != 0 else { return IDentifIEr }-swift2

func functionname(_ user: String)–swift3
func functionname(user: String)–swift2

tableVIEw.register( –swift3 tableVIEw.registerClass( –swift2

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