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我有一个关于睡眠分析的Swift脚本。Swift：使用未解析的标识符。目标会员
错误：
View Controller has no member 'updateTime'.
我尝试使用文件检查器并将其添加到目标成员加入这一目标，但目标本身不会表现出来，这是超越怪异。任何反馈将不胜感激。
PS：另一个错误消息不是说'错误'是if != nil语句的未解析标识符不断弹出。任何帮助在这里，也将不胜感激。
import UIKit
import HealthKit
let healthStore = HKHealthStore()
class ViewController: UIViewController {
@IBOutlet var displayTimeLabel: UILabel!
var startTime = TimeInterval()
var timer:Timer = Timer()
var endTime: NSDate!
var alarmTime: NSDate!
func saveSleepAnalysis() {
//1. startTime(alarmTime) and endTime are NSDate Objects//
if let sleepType = HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis) {
//we create a new object that we want to add into our Health app(This is our INBED object)//
let object1 = HKCategorySample(type:sleepType, value: HKCategoryValueSleepAnalysis.inBed.rawValue, start: self.alarmTime as Date, end: self.endTime as Date)
// Time to save the object//
healthStore.save(object1, withCompletion: { (success, errpr) -> Void in
if error != nil
{
return
}
if success {
print("My new data was saved in HealthKit")
} else {
//something happened again//
}
})
//This our ASLEEP object//
let object2 = HKCategorySample(type:sleepType, value: HKCategoryValueSleepAnalysis.asleep.rawValue, start: self.alarmTime as Date, end: self.endTime as Date)
//now we save our objects to our mainLibrary known as HealthStore
healthStore.save(object2, withCompletion: { (success, error) -> Void in
if error != nil {
//Something went wrong//
return
if success {
print("My new data (2: Asleep data) was saved into HealthKit")
} else {
//something happened again//
}
}
}
)}
func retrieveSleepAnalysis() {
//first, define our object type that we watn again in BOOLEAN FORMAT//
if let sleepType = HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis) {
//use sortDescriptor to get teh recent data first: so from MostRecentData to PastData//
let sortDescriptor = NSSortDescriptor(key: HKSampleSortIdentifierEndDate, ascending: false)
//we create our query with a block completion to execute
let query = HKSampleQuery(sampleType: sleepType, predicate: nil, limit:30, sortDescriptors: [sortDescriptor]) { (query, tmpResult, error) -> Void in
if error != nil {
//something happends//
return
}
if let result = tmpResult {
//then i want the computer to do something with my data//
for item in result {
if let sample = item as? HKCategorySample {
let value = (sample.value == HKCategoryValueSleepAnalysis.inBed.rawValue) ? "InBed" : "Asleep"
print("Healthkit sleep: \(sample.startDate) \(sample.endDate) = value: \(value)")
}
}
}
}
//finally, we execute our query: Print out our output file //
healthStore.execute(query)
}
}
func viewDidLoad() {
super.viewDidLoad()
let typestoRead = Set([
HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis)!
])
let typestoShare = Set([
HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis)!
])
healthStore.requestAuthorization(toShare: typestoShare, read: typestoRead) { (success, error) -> Void in
if success == false {
NSLog(" Display not allowed")
}
}
}
func updateTime() {
let currentTime = NSDate.timeIntervalSinceReferenceDate
//Find the difference between current time and start time.
var elapsedTime: TimeInterval = currentTime - startTime
//calculate the minutes in elapsed time.
let minutes = UInt8(elapsedTime/60.0)
elapsedTime -= (TimeInterval(minutes) * 60)
//calculate the seconds in elapsed time.
let seconds = UInt8(elapsedTime)
elapsedTime -= TimeInterval(seconds)
//find out the fraction of milliseconds to be displayed.
let fraction = UInt8(elapsedTime * 100)
//add the leading zero for minutes, seconds and millseconds and store them as string constants
let strMinutes = String(format: "%02d", minutes)
let strSeconds = String(format: "%02d", seconds)
let strFraction = String(format: "%02d", fraction)
//concatenate minuets, seconds and milliseconds as assign it to the UILabel
displayTimeLabel.text = "\(strMinutes):\(strSeconds):\(strFraction)"
}
func start(sender: AnyObject) {
alarmTime = NSDate()
if (!timer.isValid) {
let Selector : Selector = #selector(ViewController.updateTime)
timer = Timer.scheduledTimer(timeInterval: 0.01, target: self, selector: Selector, userInfo: nil, repeats: true)
startTime = NSDate.timeIntervalSinceReferenceDate
}
}
func stop(sender: AnyObject) {
endTime = NSDate()
saveSleepAnalysis()
retrieveSleepAnalysis()
timer.invalidate()
}
func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
}
更换你的代码看起来像你可能有一些缩进和可能涉及的范围的问题。你确定函数updateTime是在类中定义的吗？ – ryantxr