Question

下面有一个关于睡眠分析的Swift脚本。

错误：

View Controller没有会员＆＃39; updateTime＆＃39;。

我尝试使用文件检查器添加此目标并将其添加到目标成员资格，但目标本身不会显示，这超出了奇怪的范围。任何反馈将不胜感激。

PS：另一条错误消息没有说出错误＆＃39;是mysql_*语句的未解析标识符不断弹出。这里的任何帮助，也将受到高度赞赏。

if != nil

Answer 1

用此

替换您的代码

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 errpr != 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)
        }
    }
    override 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()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}

Swift：使用未解析的标识符。目标会员

1 个答案: