Every child has a pick up point location consists of latitude and longitude that i fetch from sqlite database. I have childIdArray which is array of childID's. I want to calculate the estimate time(ETA) from current location of their respective drivers location i fetch from getCurrentLocationOfRespectiveDrivers() method with pickUp point of children that i fetch from sqlite database in form of array of latitude and longitude.
but i get error
fatal error: Array index out of range
in getCurrentLocationOfRespectiveDrivers() method.
Any help would be highly appreciated.. thanks in advance
var etaArray : [String] = []
var estimatedTime : String?
var latitudeArray : [Double] = []
var longitudeArray : [Double] = []
override func viewDidLoad() {
super.viewDidLoad()
let rs = ModelManager.sharedInstance.fetchingPickUpAnnotationsArray(ChildDetailsVC.parentID)
latitudeArray = rs.latPickUp
longitudeArray = rs.longPickUp
print("pickUpLatitudeArray = \(latitudeArray)")
print("pickUpLongitudeArray = \(longitudeArray)")
let result = ModelManager.sharedInstance.fetchingChildren( ChildDetailsVC.parentID)
self.childNameArray = result.childNames
self.childImageArray = result.childImages
self.childIDArray = result.chidIDs
self.childDriverArray = result.childDrivers
getCurrentLocationOfRespectiveDrivers()
for (var i = 0; i < childIDArray.count; i++)
{
etaArray.append("")
}
}
func getCurrentLocationOfRespectiveDrivers()
{
for( var i = 0 ; i < latitudeArray.count ; i++)
{
let url:NSURL = NSURL(string:"http://development.ssntpl.com/gogo_app/api.php?action=getDriverCurrentLocation")!
let request = NSMutableURLRequest(URL:url)
request.HTTPMethod = "POST"
let post:NSString = "child_id=\(childIDArray)"
request.HTTPBody = post.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request)
{
data, response, error in
if error != nil
{
print("error is \(error)")
return;
}
do
{
let myJSON = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
if let parseJSON = myJSON
{
let Status = parseJSON["status"] as! Int
let Code = parseJSON["code"] as! Int
if (Status == 1 && Code == 200)
{
let Result = parseJSON["result"] as! NSArray
self.etaArray.removeAll()
//here i get the crash fatal error: Array index out of range
let latitudePickUp = self.latitudeArray[i]
let longitudePickUp = self.longitudeArray[i]
let CoordinatePickUp = CLLocation(latitude: latitudePickUp, longitude: longitudePickUp)
for res in Result
{
self.estimatedTime = ""
if (res["exists"] as! Int == 1)
{
let lastLatitude = res["latitude"] as! CLLocationDegrees
let lastLongitude = res["longitude"] as! CLLocationDegrees
let Location : CLLocation = CLLocation(latitude: lastLatitude, longitude: lastLongitude)
let meters:CLLocationDistance = Location.distanceFromLocation(CoordinatePickUp)
print(meters)
let ID = res["child_id"] as! String
let time = round(meters/40000 * 60)
self.estimatedTime = String(time)
self.etaArray.append(self.estimatedTime!)
}
else
{
self.etaArray.append("")
}
}
}
else
{
}
}
}
catch
{
print(error)
}
}
//executing the task
task.resume()
}
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.tableView.reloadData()
})
}
how can I sort the cells according Alphabets and ignore the caps lock in coreData ?
This is my code for Attempt Fetch:
func attemptFetch() {
let fetchRequest: NSFetchRequest<Item> = Item.fetchRequest() // fetch the Item.
// display it by Sort.
let priceSort = NSSortDescriptor(key: "price", ascending: true)
let titleSort = NSSortDescriptor(key: "title", ascending: true)
let dateSort = NSSortDescriptor(key: "created", ascending: false)
if segment.selectedSegmentIndex == 0 {
fetchRequest.sortDescriptors = [dateSort]
} else if segment.selectedSegmentIndex == 1 {
fetchRequest.sortDescriptors = [priceSort]
} else if segment.selectedSegmentIndex == 2 {
fetchRequest.sortDescriptors = [titleSort]
}
You just need to make small change you need to use init(key:ascending:selector:) of NSSortDescriptor instead of init(key:ascending:) when you want sort with title property.
let titleSort = NSSortDescriptor(key: "title", ascending: true, selector: #selector(NSString.localizedCaseInsensitiveCompare))
In your code to fetch the array of things(list), add the following code to sort in alphabetical order.
class func fetchAllThingsFromCoreData() -> [Thing] {
let context:NSManagedObjectContext = MyCoreDataManager.sharedInstance.managedObjectContext
let request:NSFetchRequest<Thing> = self.fetchRequest()
request.sortDescriptors = [NSSortDescriptor(key: "thingName", ascending: true)]
let myThingsCoreDataArray = try? context.fetch(request)
return myThingsCoreDataArray ?? []
}
I want to change marker image in my MKPointAnnotation() and I have successfully changed my image but problem is that I have 2 marker points and I want to place ignitionon.png on point one and ignitionof.png on point two and my logic place ignitionon.png on both the points.
Code
if(self.doubelLocation) {
var pointOff = CLLocationCoordinate2D()
var pointOn = CLLocationCoordinate2D()
if(self.dateTime.count > 0) {
for(var i : Int = 0 ; i < self.dateTime.count ; i++) {
// print("Real status = \(self.dateTime[i])")
var fixTime = self.dateTime[i]
if(fixTime == self.dateTimeTwo) {
pointOff = CLLocationCoordinate2DMake(self.latt[i], self.lngg[i]);
print("pointOff = \(pointOff)")
//points.append(pointOf)
}
if(fixTime == self.dateTimeOne){
pointOn = CLLocationCoordinate2DMake(self.latt[i], self.lngg[i]);
print("pointOn = \(pointOn)")
//points.append(pointOf)
}
}
var points: [CLLocationCoordinate2D]
points = [pointOn, pointOff]
dispatch_async(dispatch_get_main_queue(), {
let geodesic = MKGeodesicPolyline(coordinates: &points[0], count: 2)
self.theMapView.addOverlay(geodesic)
let latDelta:CLLocationDegrees = 0.03
let lnggDelta:CLLocationDegrees = 0.03
UIView.animateWithDuration(1.5, animations: { () -> Void in
let span = MKCoordinateSpanMake(latDelta, lnggDelta)
let region1 = MKCoordinateRegion(center: points[0], span: span)
self.theMapView.setRegion(region1, animated: true)
self.ActivityIndicator.stopAnimating()
for(var i : Int = 0 ;i < points.count; i++){
var st = self.reportText[i]
// let theMarker = MKPointAnnotation()
//how to change marker color
//https://stackoverflow.com/questions/33532883/add-different-pin-color-with-mapkit-in-swift-2-1
let theMarker = MKPointAnnotation()
theMarker.coordinate = points[i]
// if(st == "IGNITION ON"){
if(i == 0){
theMarker.title = "Status : IGNITION OFF"
theMarker.subtitle = "\(self.locationOff)"
// theMarker.subtitle = "Date = , Reg#: "
self.theMapView.addAnnotation(theMarker)
let anView1:MKAnnotationView = MKAnnotationView()
anView1.annotation = theMarker
anView1.image = UIImage(named:"ignitionof")
anView1.canShowCallout = true
anView1.enabled = true
}
if(i == 1){
// theMarker = UIColor.greenColor()
theMarker.title = "Status : IGNITION ON"
theMarker.subtitle = "\(self.locationOn)"
// theMarker.subtitle = "Date = , Reg#: "
self.theMapView.addAnnotation(theMarker)
//how to change image of marker
//https://stackoverflow.com/questions/24467408/swift-add-mkannotationview-to-mkmapview
let anView:MKAnnotationView = MKAnnotationView()
anView.annotation = theMarker
anView.image = UIImage(named:"ignitionon")
anView.canShowCallout = true
anView.enabled = true
}
// }
}
})
})
}
}
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if (annotation is MKUserLocation) {
//if annotation is not an MKPointAnnotation (eg. MKUserLocation),
//return nil so map draws default view for it (eg. blue dot)...
return nil
}
let reuseId = "test"
var anView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
if anView == nil {
anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
anView!.image = UIImage(named:"ignitionon")
anView!.canShowCallout = true
}
var anView1 = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
if anView1 == nil {
anView1 = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
anView1!.image = UIImage(named:"ignitionof")
anView1!.canShowCallout = true
}
else {
//we are re-using a view, update its annotation reference...
anView!.annotation = annotation
}
return anView
}
I am following this Link:
Swift - Add MKAnnotationView To MKMapView
It's not the best way to handle multiple marker with different metadata.
You can't use mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) two times or more because in viewForAnnotation it is for only 1 view for each Point you have added in the stack.
Create a sub-class of MKPointAnnotation:
class CustomPointAnnotation: MKPointAnnotation {
var tag: String!
}
Create a Dictionary with all images:
var imagesPath : ["tag_1": "image_1.png", "tag_2": "image_2.jpg"]
Now in the delegate func, check Simply
if !(annotation is CustomPointAnnotation) {
return nil
}
and Handle the only one View you have:
let reuseId = "test"
var anView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
if anView == nil {
anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
var customannotation = annotation as! CustomPointAnnotation
anView!.image = UIImage(named: imagesPath(customannotation.tag))
anView!.canShowCallout = true
}
An example to add a new Custom point is:
let aPoint = CustomPointAnnotation()
aPoint.coordinate = CLLocationCoordinate2DMake(40.730872, -73.003066)
aPoint.title = "Info1"
aPoint.subtitle = "Subtitle"
aPoint.tag = "tag_1"
mapView.addAnnotation(aPoint)
I am making my own Spotify controller to learn how to interact with AppleScript and Swift (using Objective-C as a bridge) to make a bigger project later on. The only issue is the current progress time seems to update slightly faster then the time left.
This is what my application looks like:
The time on the left seems to update slightly faster then the time on the right, this means it is not accurate and can be bit strange to look at. How would I be able to fix this so both the progress time and time left update at the same time?
Here is my code:
ViewController.swift
import Cocoa
class ViewController: NSViewController {
#IBOutlet weak var statusLabel: NSTextField!
#IBOutlet weak var songProgress: NSProgressIndicator!
#IBOutlet weak var lblCurrentProgress: NSTextField!
#IBOutlet weak var lblTrackLength: NSTextField!
//let debugger = Debug(appName:"Spotify Menu", debugable: )
var previousScript:String = ""
var toggleScript:String = ""
var nextScript:String = ""
var statusScript:String = ""
var artistScript:String = ""
var songNameScript:String = ""
var trackPosScript:String = ""
var trackLengthScript:String = ""
var trackIDscript:String = ""
var trackName:String = "unknown"
var artistName:String = "unknown"
var playerStatus:String = "unknown"
var trackID:String = "unknown"
var playerPosistion:Double = -1.0
var trackLength:Double = -1.0
var percentThrough:Double = -1.0
let timeFormatter = twoDiffrentTimes()
func main()
{
getStatus()
getSongName()
getArtist()
getTrackLength()
getPlayerPos()
getID()
percentThrough = (playerPosistion/trackLength)*100
if(playerStatus == "playing" && trackName != "unknown" && artistName != "unknown")
{
statusLabel.stringValue = "Spotify is currently playing the song \"\(trackName)\" by \"\(artistName)\""
} else if(playerStatus == "paused"){
statusLabel.stringValue = "Spotify is currently paused"
} else if(playerStatus == "stopped") {
statusLabel.stringValue = "Spotify is not playing any music"
} else {
statusLabel.stringValue = "There is currently an error"
}
//NSLog("The song is currently \(percentThrough.toDecimalPlace("2"))% the way in")
songProgress.doubleValue = percentThrough
timeFormatter.update(playerPosistion, timeTwo: trackLength-playerPosistion)
lblCurrentProgress.stringValue = timeFormatter.timeOneString
lblTrackLength.stringValue = timeFormatter.timeTwoString
}
override func viewDidLoad() {
super.viewDidLoad()
previousScript = readFile("previousTrack")
if(previousScript == "")
{
NSLog("Error finding previous track script")
exit(1)
}
toggleScript = readFile("playPause")
if(toggleScript == "")
{
NSLog("Error finding toggle script")
exit(1)
}
nextScript = readFile("nextTrack")
if(nextScript == "")
{
NSLog("Error going forwared a track")
exit(1)
}
statusScript = readFile("playerStatus")
if(statusScript == "")
{
NSLog("Error going back a track")
statusLabel.stringValue = "Spotify is in an unknown status"
exit(1)
}
artistScript = readFile("getArtist")
if(artistScript == "")
{
NSLog("Cannot get artist script")
exit(1)
}
songNameScript = readFile("getSongName")
if(songNameScript == "")
{
NSLog("Cannot get song name script")
exit(1)
}
trackPosScript = readFile("playerPosition")
if(trackPosScript == "")
{
NSLog("Error getting track posistion script")
exit(1)
}
trackLengthScript = readFile("durationOfSong")
if(trackLengthScript == "")
{
NSLog("Error getting track length script")
exit(1)
}
trackIDscript = readFile("trackID")
if(trackIDscript == "")
{
NSLog("Error getting")
}
main()
NSTimer.scheduledTimerWithTimeInterval(0.3, target: self, selector: Selector("main"), userInfo: nil, repeats: true)
}
override var representedObject: AnyObject? {
didSet {
// Update the view, if already loaded.
}
}
#IBAction func previous(sender: AnyObject)
{
runAppleScript(previousScript)
}
#IBAction func toggle(sender: AnyObject)
{
runAppleScript(toggleScript)
}
#IBAction func next(sender: AnyObject)
{
let nextFile = readFile("nextTrack")
if(nextFile == "")
{
NSLog("Error going forwared a track")
} else {
runAppleScript(nextFile)
}
}
func getPlayerPos()
{
playerPosistion = runAppleScript(trackPosScript).toDouble()
}
func getTrackLength()
{
trackLength = runAppleScript(trackLengthScript).toDouble()
}
func getSongName()
{
trackName = runAppleScript(songNameScript)
}
func getArtist()
{
artistName = runAppleScript(artistScript)
}
func getID()
{
trackID = runAppleScript(trackIDscript)
}
func getStatus()
{
let resultData = runAppleScript(statusScript)
if(resultData == "playing" || resultData == "paused" || resultData == "stopped")
{
playerStatus = resultData
} else {
playerStatus = "unknown"
}
}
}
classes.swift
import Foundation
class twoDiffrentTimes
{
var timeOne:Double = 0.0
var iMinuteOne:Int = 0
var iSecondsOne:Int = 0
var minuteOne:String = ""
var secondsOne:String = ""
var timeOneString:String = ""
var uSecondsOne:Double = 0.0
var temp:Int = 0
var timeTwo:Double = 0.0
var iMinuteTwo:Int = 0
var iSecondsTwo:Int = 0
var minuteTwo:String = ""
var secondsTwo:String = ""
var timeTwoString:String = ""
var uSecondsTwo:Double = 0.0
func update(timeOne:Double, timeTwo:Double)
{
//First Time
self.temp = Int(timeOne)
self.iMinuteOne = temp / 60
self.iSecondsOne = temp % 60
self.minuteOne = "\(iMinuteOne)"
if(self.iSecondsOne < 10)
{
self.secondsOne = "0\(self.iSecondsOne)"
} else {
self.secondsOne = "\(self.iSecondsOne)"
}
self.timeOneString = "\(self.iMinuteOne).\(self.secondsOne)"
//Second Time
self.temp = Int(timeTwo)
self.iMinuteTwo = temp / 60
self.iSecondsTwo = temp % 60
self.minuteTwo = "\(iMinuteTwo)"
if(self.iSecondsTwo < 10)
{
self.secondsTwo = "0\(self.iSecondsTwo)"
} else {
self.secondsTwo = "\(self.iSecondsTwo)"
}
self.timeTwoString = "\(self.iMinuteTwo).\(self.secondsTwo)"
}
}
extensions.swift
import Foundation
extension String {
func toDouble() -> Double {
if let unwrappedNum = Double(self) {
return unwrappedNum
} else {
// Handle a bad number
print("Error converting \"" + self + "\" to Double")
return 0.0
}
}
}
extension Double {
func toDecimalPlace(f: String) -> String {
return NSString(format: "%0.\(f)f", self) as String
}
func decimalValue() -> Int
{
if let decimalString = String(self).componentsSeparatedByString(".").last, decimal = Int(decimalString) {
return decimal // 535
} else {
return -1
}
}
}
functions.swift
import Foundation
func readFile(fileName: String) -> String{
if let filepath = NSBundle.mainBundle().pathForResource(fileName, ofType: "txt") {
do {
let contents = try NSString(contentsOfFile: filepath, usedEncoding: nil) as String
print(contents)
return contents
} catch {
NSLog("Content Could Not Be Loaded")
return ""
}
} else {
NSLog("File \(fileName).\("txt") could not be found")
return ""
}
}
func runAppleScript(script:String) -> String
{
let theResult:String
let errorInfo = AutoreleasingUnsafeMutablePointer<NSDictionary?>()
let startAtLoginScript: NSAppleScript = NSAppleScript(source: script)!
let theDiscriptor:NSAppleEventDescriptor = startAtLoginScript.executeAndReturnError(errorInfo)
if let _ = theDiscriptor.stringValue
{
theResult = theDiscriptor.stringValue!
} else {
theResult = ""
}
return theResult
}
errorClases.swift
import Foundation
enum MyAppleScriptError: ErrorType {
case ExecutingScriptFailed
case GettingStringValueFailed
}
Last but not least durationOfSong.txt (AppleScript)
tell application "Spotify"
set songLength to (duration of current track) / 1000 as string
return songLength
end tell
And playerPosition
tell application "Spotify"
set currentPosistion to player position as string
return currentPosistion
end tell
Edit:
Updated code
I recommend you learn how to call AppleScript handlers directly from Swift via the AppleScript-ObjC bridge. That will work vastly better than mucking about with code strings and NSAppleScript, which is slow and nasty and not a good way to do it. Tutorial here:
http://macscripter.net/viewtopic.php?id=43127
--
ETA:
"I have successful moved NSAppleScript to Swift2. Only thing is that still doesn't fix the issue. it is still out of timing."
Well, that's annoying. FWIW, I'd ditch that twoDiffrntTimes class as it doesn't do anything that can't be done in a single-line function, and change the end of main() to this:
func main() {
...
lblCurrentProgress.stringValue = formatTime(Int(playerPosistion))
lblTrackLength.stringValue = formatTime(Int(trackLength-playerPosistion))
}
func formatTime(secs: Int) -> String {
return NSString(format: "%i.%02i", secs / 60, secs % 60) as String
}
Is it possible to get the MAC address using Swift?
The MAC address being the primary address for the Wi-Fi or Airport.
I'm trying to make a OS X application.
Apple's sample code from https://developer.apple.com/library/mac/samplecode/GetPrimaryMACAddress/Introduction/Intro.html to retrieve the Ethernet MAC address can
be translated to Swift. I have preserved only the most important
comments, more explanations can be found in the original code.
// Returns an iterator containing the primary (built-in) Ethernet interface. The caller is responsible for
// releasing the iterator after the caller is done with it.
func FindEthernetInterfaces() -> io_iterator_t? {
let matchingDictUM = IOServiceMatching("IOEthernetInterface");
// Note that another option here would be:
// matchingDict = IOBSDMatching("en0");
// but en0: isn't necessarily the primary interface, especially on systems with multiple Ethernet ports.
if matchingDictUM == nil {
return nil
}
let matchingDict = matchingDictUM.takeUnretainedValue() as NSMutableDictionary
matchingDict["IOPropertyMatch"] = [ "IOPrimaryInterface" : true]
var matchingServices : io_iterator_t = 0
if IOServiceGetMatchingServices(kIOMasterPortDefault, matchingDict, &matchingServices) != KERN_SUCCESS {
return nil
}
return matchingServices
}
// Given an iterator across a set of Ethernet interfaces, return the MAC address of the last one.
// If no interfaces are found the MAC address is set to an empty string.
// In this sample the iterator should contain just the primary interface.
func GetMACAddress(intfIterator : io_iterator_t) -> [UInt8]? {
var macAddress : [UInt8]?
var intfService = IOIteratorNext(intfIterator)
while intfService != 0 {
var controllerService : io_object_t = 0
if IORegistryEntryGetParentEntry(intfService, "IOService", &controllerService) == KERN_SUCCESS {
let dataUM = IORegistryEntryCreateCFProperty(controllerService, "IOMACAddress", kCFAllocatorDefault, 0)
if dataUM != nil {
let data = dataUM.takeRetainedValue() as! NSData
macAddress = [0, 0, 0, 0, 0, 0]
data.getBytes(&macAddress!, length: macAddress!.count)
}
IOObjectRelease(controllerService)
}
IOObjectRelease(intfService)
intfService = IOIteratorNext(intfIterator)
}
return macAddress
}
if let intfIterator = FindEthernetInterfaces() {
if let macAddress = GetMACAddress(intfIterator) {
let macAddressAsString = ":".join(macAddress.map( { String(format:"%02x", $0) } ))
println(macAddressAsString)
}
IOObjectRelease(intfIterator)
}
The only "tricky" part is how to work with Unmanaged objects, those
have the suffix UM in my code.
Instead of returning an error code, the functions return an optional
value which is nil if the function failed.
Update for Swift 3:
func FindEthernetInterfaces() -> io_iterator_t? {
let matchingDict = IOServiceMatching("IOEthernetInterface") as NSMutableDictionary
matchingDict["IOPropertyMatch"] = [ "IOPrimaryInterface" : true]
var matchingServices : io_iterator_t = 0
if IOServiceGetMatchingServices(kIOMasterPortDefault, matchingDict, &matchingServices) != KERN_SUCCESS {
return nil
}
return matchingServices
}
func GetMACAddress(_ intfIterator : io_iterator_t) -> [UInt8]? {
var macAddress : [UInt8]?
var intfService = IOIteratorNext(intfIterator)
while intfService != 0 {
var controllerService : io_object_t = 0
if IORegistryEntryGetParentEntry(intfService, "IOService", &controllerService) == KERN_SUCCESS {
let dataUM = IORegistryEntryCreateCFProperty(controllerService, "IOMACAddress" as CFString, kCFAllocatorDefault, 0)
if let data = dataUM?.takeRetainedValue() as? NSData {
macAddress = [0, 0, 0, 0, 0, 0]
data.getBytes(&macAddress!, length: macAddress!.count)
}
IOObjectRelease(controllerService)
}
IOObjectRelease(intfService)
intfService = IOIteratorNext(intfIterator)
}
return macAddress
}
if let intfIterator = FindEthernetInterfaces() {
if let macAddress = GetMACAddress(intfIterator) {
let macAddressAsString = macAddress.map( { String(format:"%02x", $0) } )
.joined(separator: ":")
print(macAddressAsString)
}
IOObjectRelease(intfIterator)
}
Update for Swift 4.2
func FindEthernetInterfaces() -> io_iterator_t? {
let matchingDictUM = IOServiceMatching("IOEthernetInterface");
// Note that another option here would be:
// matchingDict = IOBSDMatching("en0");
// but en0: isn't necessarily the primary interface, especially on systems with multiple Ethernet ports.
if matchingDictUM == nil {
return nil
}
let matchingDict = matchingDictUM! as NSMutableDictionary
matchingDict["IOPropertyMatch"] = [ "IOPrimaryInterface" : true]
var matchingServices : io_iterator_t = 0
if IOServiceGetMatchingServices(kIOMasterPortDefault, matchingDict, &matchingServices) != KERN_SUCCESS {
return nil
}
return matchingServices
}
// Given an iterator across a set of Ethernet interfaces, return the MAC address of the last one.
// If no interfaces are found the MAC address is set to an empty string.
// In this sample the iterator should contain just the primary interface.
func GetMACAddress(_ intfIterator : io_iterator_t) -> [UInt8]? {
var macAddress : [UInt8]?
var intfService = IOIteratorNext(intfIterator)
while intfService != 0 {
var controllerService : io_object_t = 0
if IORegistryEntryGetParentEntry(intfService, kIOServicePlane, &controllerService) == KERN_SUCCESS {
let dataUM = IORegistryEntryCreateCFProperty(controllerService, "IOMACAddress" as CFString, kCFAllocatorDefault, 0)
if dataUM != nil {
let data = (dataUM!.takeRetainedValue() as! CFData) as Data
macAddress = [0, 0, 0, 0, 0, 0]
data.copyBytes(to: &macAddress!, count: macAddress!.count)
}
IOObjectRelease(controllerService)
}
IOObjectRelease(intfService)
intfService = IOIteratorNext(intfIterator)
}
return macAddress
}
func getMacAddress() -> String? {
var macAddressAsString : String?
if let intfIterator = FindEthernetInterfaces() {
if let macAddress = GetMACAddress(intfIterator) {
macAddressAsString = macAddress.map( { String(format:"%02x", $0) } ).joined(separator: ":")
print(macAddressAsString!)
}
IOObjectRelease(intfIterator)
}
return macAddressAsString
}
Different approach via if_msghdr
func MACAddressForBSD(bsd : String) -> String?
{
let MAC_ADDRESS_LENGTH = 6
let separator = ":"
var length : size_t = 0
var buffer : [CChar]
let bsdIndex = Int32(if_nametoindex(bsd))
if bsdIndex == 0 {
print("Error: could not find index for bsd name \(bsd)")
return nil
}
let bsdData = Data(bsd.utf8)
var managementInfoBase = [CTL_NET, AF_ROUTE, 0, AF_LINK, NET_RT_IFLIST, bsdIndex]
if sysctl(&managementInfoBase, 6, nil, &length, nil, 0) < 0 {
print("Error: could not determine length of info data structure");
return nil;
}
buffer = [CChar](unsafeUninitializedCapacity: length, initializingWith: {buffer, initializedCount in
for x in 0..<length { buffer[x] = 0 }
initializedCount = length
})
if sysctl(&managementInfoBase, 6, &buffer, &length, nil, 0) < 0 {
print("Error: could not read info data structure");
return nil;
}
let infoData = Data(bytes: buffer, count: length)
let indexAfterMsghdr = MemoryLayout<if_msghdr>.stride + 1
let rangeOfToken = infoData[indexAfterMsghdr...].range(of: bsdData)!
let lower = rangeOfToken.upperBound
let upper = lower + MAC_ADDRESS_LENGTH
let macAddressData = infoData[lower..<upper]
let addressBytes = macAddressData.map{ String(format:"%02x", $0) }
return addressBytes.joined(separator: separator)
}
MACAddressForBSD(bsd: "en0")
Update to Martin R's entry. There are a couple of lines that won't compile with Swift 2.1.
Change:
let matchingDict = matchingDictUM.takeUnretainedValue() as NSMutableDictionary
To:
let matchingDict = matchingDictUM as NSMutableDictionary
Change:
let macAddressAsString = ":".join(macAddress.map( { String(format:"%02x", $0) } ))
To:
let macAddressAsString = macAddress.map( { String(format:"%02x", $0) } ).joinWithSeparator(":")
You can also use 'SystemConfiguration' framework
import SystemConfiguration
func collectMACAddresses() -> [String] {
guard let interfaces = SCNetworkInterfaceCopyAll() as? [SCNetworkInterface] else {
return []
}
return interfaces
.map(SCNetworkInterfaceGetHardwareAddressString)
.compactMap { $0 as String? }
}
DISCLAIMER: this is not production-ready. It would probably be rejected by the App Store. It's also subject to errors if the output of ifconfig changes in the future. I've made this because I lacked the skills to translate the C code given in the links. It does not replace a full Swift solution. That being said, it works...
Get ifconfig's output and parse it to get the MAC address associated with an interface (en0 in this example):
let theTask = NSTask()
let taskOutput = NSPipe()
theTask.launchPath = "/sbin/ifconfig"
theTask.standardOutput = taskOutput
theTask.standardError = taskOutput
theTask.arguments = ["en0"]
theTask.launch()
theTask.waitUntilExit()
let taskData = taskOutput.fileHandleForReading.readDataToEndOfFile()
if let stringResult = NSString(data: taskData, encoding: NSUTF8StringEncoding) {
if stringResult != "ifconfig: interface en0 does not exist" {
let f = stringResult.rangeOfString("ether")
if f.location != NSNotFound {
let sub = stringResult.substringFromIndex(f.location + f.length)
let range = Range(start: advance(sub.startIndex, 1), end: advance(sub.startIndex, 18))
let result = sub.substringWithRange(range)
println(result)
}
}
}