我试图为位置功能创建一个单独的类(Watchkit Exension文件夹中的单独swift文件(，我想在InterfaceController类中使用该类的位置实例来跟踪用户的位置。但是，xcode 卡住了，我也无法部署和测试应用程序。我不知道是什么原因。
下面是位置代码和接口控制器类：
整个项目在这里： https://filebin.net/s40xlqzeukfwc39w
我希望你能帮助我，因为我仍然是 Swift 和 WatchKit 的初学者。谢谢。
import WatchKit
import Foundation
import CoreLocation
class LocationOutside{
var locationManager: CLLocationManager = CLLocationManager()
init(){
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters
locationManager.delegate = (self as! CLLocationManagerDelegate)
locationManager.requestLocation()
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let currentLoc = locations[0]
let lat = currentLoc.coordinate.latitude
let long = currentLoc.coordinate.longitude
print(lat)
print(long)
}
func locationManager(_manager: CLLocationManager,didFailWithError error: Error){
if let locationErr = error as? CLError{
switch locationErr{
case CLError.locationUnknown:
print("unknown location")
case CLError.denied:
print("denied")
default:
print("another type of location error")
}
}else{
print("other error: ", error.localizedDescription)
}
}
}
import WatchKit
import Foundation
import CoreLocation
import HealthKit
import AVFoundation
import CoreMotion
let hrType:HKQuantityType = HKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier.heartRate)!
// Date will be constructed in database --> server side
class InterfaceController: WKInterfaceController,AVAudioRecorderDelegate{
var saveUrl: URL?
var outDoorLocation = LocationOutside.init()
// to conduct permission to retrieve location data
var locationManager: CLLocationManager = CLLocationManager()
// Outlets for testing
@IBOutlet weak var button: WKInterfaceButton!
@IBOutlet weak var furtherSigLabels: WKInterfaceLabel!
var recordingSession : AVAudioSession!
var audioRecorder : AVAudioRecorder!
var settings = [String : Any]()
// distinguish start recording heartbeat
var isRecording = false
//For workout session
let healthStore = HKHealthStore()
var session: HKWorkoutSession?
var currentQuery: HKQuery?
var filename: String?
let motionManager = CMMotionManager()
let queue = OperationQueue()
var gravityStr = ""
var userAccelerStr = ""
var rotationRateStr = ""
var attitudeStr = ""
var movement = ""
var manualLat: Double = 0.0
var manualLong: Double = 0.0
var heartRateVal: Double = 0.0
var prev_grav_z: Double = 0.0
var prev_acc_z: Double = 0.0
var grav_x:Double = 0.0
var grav_y:Double = 0.0
var grav_z:Double = 0.0
var acc_x:Double = 0.0
var acc_y:Double = 0.0
var acc_z:Double = 0.0
var sendOrNot:Bool = false
override func awake(withContext context: Any?) {
super.awake(withContext: context)
/**
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.delegate = self
locationManager.requestLocation()
*/
// managing authorization
let healthService:HealthDataService = HealthDataService()
healthService.authorizeHealthKitAccess { (success, error) in
if success {
print("HealthKit authorization received.")
} else {
print("HealthKit authorization denied!")
if error != nil {
print("(String(describing: error))")
}
}
}
motionManager.deviceMotionUpdateInterval = 0.5
}
/**
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let currentLoc = locations[0]
let lat = currentLoc.coordinate.latitude
let long = currentLoc.coordinate.longitude
manualLat = lat
manualLong = long
/**
let request = NSMutableURLRequest(url: NSURL(string: "http://147.46.242.219/addgps.php")! as URL)
request.httpMethod = "POST"
let postString = "a=(lat)&b=(long)"
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
print("error=(error)")
return
}
print("response = (response)")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("responseString = (responseString)")
}
task.resume()
*/
}
*/
/**
func locationManager(_: CLLocationManager, didFailWithError error: Error) {
let err = CLError.Code(rawValue: (error as NSError).code)!
switch err {
case .locationUnknown:
break
default:
print(err)
}
}
*/
override func willActivate() {
// This method is called when watch view controller is about to be visible to user
super.willActivate()
motionManager.startDeviceMotionUpdates(to: queue) { (deviceMotion: CMDeviceMotion?, error: Error?) in
if error != nil {
print("Encountered error: (error!)")
}
if deviceMotion != nil {
self.grav_x = (deviceMotion?.gravity.x)!
self.grav_y = (deviceMotion?.gravity.y)!
self.grav_z = (deviceMotion?.gravity.z)!
self.gravityStr = String(format: "grav_x: %.2f, grav_y: %.2f, grav_z: %.2f" ,
self.grav_x,
self.grav_y,
self.grav_z)
if self.prev_grav_z == 0.0 {
self.prev_grav_z = self.grav_z
self.sendOrNot = true
}
else{
if (self.grav_z - self.prev_grav_z) <= -0.25{
//print("Gravity: ",self.grav_z, self.prev_grav_z)
self.sendOrNot = true
}
else{
self.sendOrNot = false
}
self.prev_grav_z = self.grav_z
}
//self.sendData(x: self.gravityStr)
// print(self.gravityStr)
self.acc_x = (deviceMotion?.userAcceleration.x)!
self.acc_y = (deviceMotion?.userAcceleration.y)!
self.acc_z = (deviceMotion?.userAcceleration.z)!
self.userAccelerStr = String(format: "acc_x: %.2f, acc_y: %.2f, acc_z: %.2f" ,
self.acc_x,
self.acc_y,
self.acc_z)
if (self.acc_z - self.prev_acc_z) <= -0.2{
//print("Accelero_z: ",self.acc_z, self.prev_acc_z)
self.sendOrNot = true
}
else{
self.sendOrNot = false
}
self.prev_acc_z = self.acc_z
self.rotationRateStr = String(format: "rota_x: %.2f, rota_y: %.2f, rota_z: %.2f" ,
(deviceMotion?.rotationRate.x)!,
(deviceMotion?.rotationRate.y)!,
(deviceMotion?.rotationRate.z)!)
//self.sendData(x: self.rotationRateStr)
//print(self.rotationRateStr)
self.attitudeStr = String(format: "atti_roll: %.1f, atti_pitch: %.1f, atti_yaw: %.1f" ,
(deviceMotion?.attitude.roll)!,
(deviceMotion?.attitude.pitch)!,
(deviceMotion?.attitude.yaw)!)
//self.sendData(x: self.attitudeStr)
//print(self.attitudeStr)
//self.movement = self.gravityStr + self.userAccelerStr + self.rotationRateStr + self.attitudeStr
if self.sendOrNot{
//print("Falling motion detected!")
self.movement = "(self.gravityStr), (self.userAccelerStr), (self.rotationRateStr), (self.attitudeStr), ("_1")"
}
else{
self.movement = "(self.gravityStr), (self.userAccelerStr), (self.rotationRateStr), (self.attitudeStr), ("_0")"
}
//print(self.movement)
self.sendOrNot = false
}
}
}
override func didDeactivate() {
// This method is called when watch view controller is no longer visible
super.didDeactivate()
motionManager.stopDeviceMotionUpdates()
}
/**
func sendData(x:String){
let request = NSMutableURLRequest(url: NSURL(string: "http://147.46.242.219/addgyro2.php")! as URL)
request.httpMethod = "POST"
let postString = "a=(x)"
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
print("error=(error)")
return
}
print("response = (response)")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("responseString = (responseString)")
}
task.resume()
}
*/
/**
func getDocumentsDirectory() -> URL
{
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentsDirectory = paths[0]
return documentsDirectory
}
func getFileUrl() -> URL
{
let filePath = getDocumentsDirectory().appendingPathComponent(filename!)
return filePath
}
func startRecording(){
let audioSession = AVAudioSession.sharedInstance()
do{
audioRecorder = try AVAudioRecorder(url: getFileUrl(),
settings: settings)
audioRecorder.delegate = self
audioRecorder.prepareToRecord()
audioRecorder.record(forDuration: 5.0)
}
catch {
finishRecording(success: false)
}
do {
try audioSession.setActive(true)
audioRecorder.record()
} catch {
}
}
func finishRecording(success: Bool) {
audioRecorder.stop()
audioRecorder = nil
if success {
print(success)
} else {
audioRecorder = nil
print("Somthing Wrong.")
}
}
func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
if !flag {
finishRecording(success: false)
}
}
*/
// generate a short unique id
struct ShortCodeGenerator {
private static let base62chars = [Character]("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")
private static let maxBase : UInt32 = 62
static func getCode(withBase base: UInt32 = maxBase, length: Int) -> String {
var code = ""
for _ in 0..<length {
let random = Int(arc4random_uniform(min(base, maxBase)))
code.append(base62chars[random])
}
return code
}
}
// Getting the address from longitude and latitude
func getAddressFromLatLon(pdblLatitude: String, withLongitude pdblLongitude: String) {
var center : CLLocationCoordinate2D = CLLocationCoordinate2D()
let lat: Double = Double("(pdblLatitude)")!
//21.228124
let lon: Double = Double("(pdblLongitude)")!
//72.833770
let ceo: CLGeocoder = CLGeocoder()
center.latitude = lat
center.longitude = lon
let loc: CLLocation = CLLocation(latitude:center.latitude, longitude: center.longitude)
ceo.reverseGeocodeLocation(loc, completionHandler:
{(placemarks, error) in
if (error != nil)
{
//print("reverse geodcode fail: (error!.localizedDescription)")
}
let pm = placemarks! as [CLPlacemark]
if pm.count > 0 {
let pm = placemarks![0]
//print(pm.country)
//print(pm.locality)
//print(pm.subLocality)
//print(pm.thoroughfare)
//print(pm.postalCode)
//print(pm.subThoroughfare)
var addressString : String = ""
if pm.subLocality != nil {
addressString = addressString + pm.subLocality! + ", "
}
if pm.thoroughfare != nil {
addressString = addressString + pm.thoroughfare! + ", "
}
if pm.locality != nil {
addressString = addressString + pm.locality! + ", "
}
if pm.country != nil {
addressString = addressString + pm.country! + ", "
}
if pm.postalCode != nil {
addressString = addressString + pm.postalCode! + " "
}
//print(addressString)
}
})
}
@IBAction func manualBtnPressed() {
// manual reporting functionality
// generating 6 character long unique id
let uniqueId = ShortCodeGenerator.getCode(length: 6)
let txtMsg = "I am student (uniqueId). I need help!"
print(txtMsg)
// Getting the address
if manualLat != 0.0 && manualLong != 0.0 {
var latStr = String(format:"%.2f",manualLat)
var longStr = String(format:"%.2f",manualLong)
getAddressFromLatLon(pdblLatitude: latStr, withLongitude: longStr)
let request = NSMutableURLRequest(url: NSURL(string: "http://147.46.242.219/addmanual.php")! as URL)
request.httpMethod = "POST"
let postString = "a=(manualLat)&b=(manualLong)&c=(txtMsg)"
print(postString)
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
//print("error=(error)")
return
}
//print("response = (response)")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
//print("responseString = (responseString)")
}
task.resume()
}
}
// when button clicked label is shown
@IBAction func btnPressed() {
if(!isRecording){
let stopTitle = NSMutableAttributedString(string: "Stop Recording")
stopTitle.setAttributes([NSAttributedString.Key.foregroundColor: UIColor.red], range: NSMakeRange(0, stopTitle.length))
button.setAttributedTitle(stopTitle)
isRecording = true
startWorkout() //Start workout session/healthkit streaming
}else{
let exitTitle = NSMutableAttributedString(string: "Start Recording")
exitTitle.setAttributes([NSAttributedString.Key.foregroundColor: UIColor.red], range: NSMakeRange(0, exitTitle.length))
button.setAttributedTitle(exitTitle)
isRecording = false
healthStore.end(session!)
}
}
}
extension InterfaceController: HKWorkoutSessionDelegate{
func workoutSession(_ workoutSession: HKWorkoutSession, didChangeTo toState: HKWorkoutSessionState, from fromState: HKWorkoutSessionState, date: Date) {
switch toState {
case .running:
//print(date)
if let query = heartRateQuery(date){
self.currentQuery = query
healthStore.execute(query)
}
//Execute Query
case .ended:
//Stop Query
healthStore.stop(self.currentQuery!)
session = nil
default:
print("Unexpected state: (toState)")
}
}
func workoutSession(_ workoutSession: HKWorkoutSession, didFailWithError error: Error) {
//Do Nothing
}
func startWorkout(){
// If a workout has already been started, do nothing.
if (session != nil) {
return
}
// Configure the workout session.
let workoutConfiguration = HKWorkoutConfiguration()
workoutConfiguration.activityType = .running
workoutConfiguration.locationType = .outdoor
do {
session = try HKWorkoutSession(configuration: workoutConfiguration)
session?.delegate = self
} catch {
fatalError("Unable to create workout session")
}
healthStore.start(self.session!)
//print("Start Workout Session")
// Here audio?
/**
if audioRecorder == nil {
print("Pressed")
filename = NSUUID().uuidString+".wav"
self.startRecording()
} else {
let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as String
let url = URL(fileURLWithPath: path)
print("Filename(filename!)")
let pathPart = url.appendingPathComponent(filename!)
let filePath = pathPart.path
let request = NSMutableURLRequest(url: NSURL(string: "http://147.46.242.219/addsound.php")! as URL)
request.httpMethod = "POST"
let audioData = NSData(contentsOfFile: filePath)
print("Result is(getFileUrl().path)")
print("Binary data printing")
print(audioData)
let postString = "a=(audioData)"
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest){
data, response, error in
if error != nil {
print("error=(error)")
return
}
print("response = (response)")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
print("responseString = (responseString)")
}
task.resume()
print("Pressed2")
self.finishRecording(success: true)
}
*/
}
func heartRateQuery(_ startDate: Date) -> HKQuery? {
let datePredicate = HKQuery.predicateForSamples(withStart: startDate, end: nil, options: .strictEndDate)
let predicate = NSCompoundPredicate(andPredicateWithSubpredicates:[datePredicate])
let heartRateQuery = HKAnchoredObjectQuery(type: hrType, predicate: predicate, anchor: nil, limit: Int(HKObjectQueryNoLimit)) { (query, sampleObjects, deletedObjects, newAnchor, error) -> Void in
//Do nothing
}
heartRateQuery.updateHandler = {(query, samples, deleteObjects, newAnchor, error) -> Void in
guard let samples = samples as? [HKQuantitySample] else {return}
DispatchQueue.main.async {
guard let sample = samples.first else { return }
// after extraction of bpm value conversion to double
let value = sample.quantity.doubleValue(for: HKUnit(from: "count/min"))
//print("Type of value is +(type(of:value))")
let request = NSMutableURLRequest(url: NSURL(string: "http://147.46.242.219/addall.php")! as URL)
request.httpMethod = "POST"
//print(self.movement)
//let randomStr = 42.0
let postString = "gps_x=(self.manualLat)&gps_y=(self.manualLong)&a=(self.movement)&hr=(value)"
//print(postString)
request.httpBody = postString.data(using: .utf8)
let task = URLSession.shared.dataTask(with: request as URLRequest) {
data, response, error in
if error != nil {
//print("error=(error)")
return
}
//print("response = (response)")
let responseString = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
//print("responseString = (responseString)")
}
task.resume()
//print("This line is executed!")
//print(String(UInt16(value)))
}
}
return heartRateQuery
}
}
class HealthDataService {
internal let healthKitStore:HKHealthStore = HKHealthStore()
init() {}
func authorizeHealthKitAccess(_ completion: ((_ success:Bool, _ error:Error?) -> Void)!) {
let typesToShare = Set([hrType])
let typesToSave = Set([hrType])
healthKitStore.requestAuthorization(toShare: typesToShare, read: typesToSave) { (success, error) in
completion(success, error)
}
}
}
在我尝试在Apple Watch上的Xcode中运行您的项目后，它崩溃了，控制台显示Could not cast value of type 'BullyingDetection_WatchKit_Extension.LocationOutside' (0x92ca0) to 'CLLocationManagerDelegate' (0x6b433f84).
在LocationOutside类的第 20 行，必须locationManager.delegate = selflocationManager.delegate = (self as! CLLocationManagerDelegate)，并且类需要符合CLLocationManagerManagerDelegate协议，该协议也需要从NSObject继承：
class LocationOutside: NSObject, CLLocationManagerDelegate {
}
这应该引导你朝着正确的方向前进。
在这里阅读有关委派的信息可能会有所帮助 https://docs.swift.org/swift-book/LanguageGuide/Protocols.html#ID276。