栄養素の記録

Preview healthkit009

Swift3.0

Info.plistNSHealthUpdateUsageDescriptionNSHealthShareUsageDescriptionを追加します

※ Capabilities -> HealthKit をONにしてください。

Preview healthkit001_3

//
//  ViewController.swift
//  healthkit012
//
//  Copyright © 2016年 FaBo, Inc. All rights reserved.
//
import UIKit
import HealthKit

class ViewController: UIViewController, UITextFieldDelegate{
    // 各インスタンスの生成.
    var myHealthStore = HKHealthStore()
    var myReadCholesterolField: UITextField!
    var myWriteCholesterolField: UITextField!
    var myReadButton: UIButton!
    var myWriteButton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()

        // 入力フィールドを設置.
        myWriteCholesterolField = UITextField(frame: CGRect(x: 0, y: 0, width: 300, height: 30))
        myWriteCholesterolField.placeholder = "コレステロールの摂取量を入力してください"
        myWriteCholesterolField.delegate = self
        myWriteCholesterolField.borderStyle = UITextBorderStyle.roundedRect
        myWriteCholesterolField.layer.position = CGPoint(x: self.view.bounds.width/2, y: 200);
        self.view.addSubview(myWriteCholesterolField)

        // 書き込みボタンを設置.
        myWriteButton = UIButton()
        myWriteButton.frame = CGRect(x: 0, y: 0, width: 300, height: 40)
        myWriteButton.backgroundColor = UIColor.blue
        myWriteButton.layer.masksToBounds = true
        myWriteButton.setTitle("コレステロールの摂取量の書き込み", for: UIControlState.normal)
        myWriteButton.setTitleColor(UIColor.white, for: UIControlState.normal)
        myWriteButton.setTitleColor(UIColor.black, for: UIControlState.highlighted)
        myWriteButton.layer.cornerRadius = 20.0
        myWriteButton.layer.position = CGPoint(x: self.view.frame.width/2, y:250)
        myWriteButton.tag = 2
        myWriteButton.addTarget(self, action: #selector(ViewController.onClickMyButton(sender:)), for: .touchUpInside)
        self.view.addSubview(myWriteButton)

        // 表示フィールドを設置.
        myReadCholesterolField = UITextField(frame: CGRect(x: 0, y: 0, width: 300, height: 30))
        myReadCholesterolField.placeholder = "前回登録のコレステロールの摂取量"
        myReadCholesterolField.isEnabled = false
        myReadCholesterolField.delegate = self
        myReadCholesterolField.borderStyle = UITextBorderStyle.roundedRect
        myReadCholesterolField.layer.position = CGPoint(x:self.view.bounds.width/2,y:350);
        myReadCholesterolField.isEnabled = false
        self.view.addSubview(myReadCholesterolField)

        // 読み込みボタンを設置.
        myReadButton = UIButton()
        myReadButton.frame = CGRect(x: 0, y: 0, width: 300, height: 40)
        myReadButton.backgroundColor = UIColor.red
        myReadButton.layer.masksToBounds = true
        myReadButton.setTitle("コレステロールの摂取量の読み込み", for: UIControlState.normal)
        myReadButton.setTitleColor(UIColor.white, for: UIControlState.normal)
        myReadButton.setTitleColor(UIColor.black, for: UIControlState.highlighted)
        myReadButton.layer.cornerRadius = 20.0
        myReadButton.layer.position = CGPoint(x: self.view.frame.width/2, y:400)
        myReadButton.tag = 1
        myReadButton.addTarget(self, action: #selector(ViewController.onClickMyButton(sender:)), for: .touchUpInside)
        self.view.addSubview(myReadButton)
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        // HealthStoreへの許可を申請.
        requestAuthorization()
    }

    /*
     ボタンイベント.
     */
    func onClickMyButton(sender: UIButton){
        if(sender.tag == 1){
            readData()
        } else if(sender.tag == 2){
            if let val = Double(myWriteCholesterolField.text!) {
                writeData(cholesterol: val)
            }
        }
    }

    /*
     Healthデータへのアクセスを申請.
     */
    private func requestAuthorization(){
        // 読み込みを許可する型.
        let types = Set(arrayLiteral:
            HKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier.dietaryCholesterol)!
        )
        // HealthStoreへのアクセス承認をおこなう.
        myHealthStore.requestAuthorization(toShare: types, read: types, completion: { (success, error) in
            if let e = error {
                print("Error: \(e.localizedDescription)")
            }
            print(success ? "Success" : "Failure")
        })
    }

    /*
     データの読み出し.
     */
    private func readData() {
        // 取得したいデータのタイプを生成.
        let typeOfCholesterol = HKSampleType.quantityType(forIdentifier: HKQuantityTypeIdentifier.dietaryCholesterol)
        let calendar = Calendar.init(identifier: Calendar.Identifier.gregorian)
        let now = Date()
        let startDate = calendar.startOfDay(for: now)
        let endDate = calendar.date(byAdding: Calendar.Component.day, value: 1, to: startDate)
        let predicate = HKQuery.predicateForSamples(withStart: startDate, end: endDate, options: [])

        // データ取得時に登録された時間でソートするためのDescriptorを生成.
        let mySortDescriptor = NSSortDescriptor(key:HKSampleSortIdentifierStartDate, ascending: false)
        // queryを生成.
        let mySampleQuery = HKSampleQuery(sampleType: typeOfCholesterol!, predicate: predicate, limit: 1, sortDescriptors: [mySortDescriptor])
        { (sampleQuery, results, error ) -> Void in
            // 一番最近に登録されたデータを取得.
            guard let myRecentSample = results!.first as? HKQuantitySample else {
                print("error")
                self.myReadCholesterolField.text = "Data is not found"
                return
            }
            // 取得したサンプルを単位に合わせる.
            DispatchQueue.main.async {
                self.myReadCholesterolField.text = "\(myRecentSample.quantity)"
            }
        }
        // queryを発行.
        self.myHealthStore.execute(mySampleQuery)
    }

    /*
     データの書き込み.
     */
    private func writeData(cholesterol: Double){
        // 入力された値をmgとして扱う.
        let mg = HKUnit.gramUnit(with: .milli)
        // Cholesterolのタイプ.
        let typeOfCholesterol = HKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier.dietaryCholesterol)
        // Cholesterolデータを作成.
        let myCholesterol = HKQuantity(unit: mg, doubleValue: cholesterol)
        // StoreKit保存用データを作成.
        let myCholesterolData = HKQuantitySample(type: typeOfCholesterol!, quantity: myCholesterol, start: Date(), end: Date())
        // HealthStoreにデータを保存.
        myHealthStore.save(myCholesterolData, withCompletion: {success, error in
            if let e = error {
                print("Error: \(e.localizedDescription)")
                return
            }
            print(success ? "Success" : "Failure")
        })
    }
}

Swift2.3

//
//  ViewController.swift
//  healthkit012
//
//  Copyright © 2016年 FaBo, Inc. All rights reserved.
//
import UIKit
import HealthKit

class ViewController: UIViewController, UITextFieldDelegate {
    // 各インスタンスの生成.
    var myHealthStore = HKHealthStore()
    var myReadCholesterolField: UITextField!
    var myWriteCholesterolField: UITextField!
    var myReadButton: UIButton!
    var myWriteButton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()

        // 入力フィールドを設置.
        myWriteCholesterolField = UITextField(frame: CGRectMake(0,0,300,30))
        myWriteCholesterolField.placeholder = "コレステロールの摂取量を入力してください"
        myWriteCholesterolField.delegate = self
        myWriteCholesterolField.borderStyle = UITextBorderStyle.RoundedRect
        myWriteCholesterolField.layer.position = CGPoint(x:self.view.bounds.width/2,y:200);
        self.view.addSubview(myWriteCholesterolField)

        // 書き込みボタンを設置.
        myWriteButton = UIButton()
        myWriteButton.frame = CGRectMake(0,0,300,40)
        myWriteButton.backgroundColor = UIColor.blueColor();
        myWriteButton.layer.masksToBounds = true
        myWriteButton.setTitle("コレステロールの摂取量の書き込み", forState: UIControlState.Normal)
        myWriteButton.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal)
        myWriteButton.setTitleColor(UIColor.blackColor(), forState: UIControlState.Highlighted)
        myWriteButton.layer.cornerRadius = 20.0
        myWriteButton.layer.position = CGPoint(x: self.view.frame.width/2, y:250)
        myWriteButton.tag = 2
        myWriteButton.addTarget(self, action: #selector(ViewController.onClickMyButton(_:)), forControlEvents: .TouchUpInside)
        self.view.addSubview(myWriteButton)


        // 表示フィールドを設置.
        myReadCholesterolField = UITextField(frame: CGRectMake(0,0,300,30))
        myReadCholesterolField.placeholder = "前回登録のコレステロールの摂取量"
        myReadCholesterolField.enabled = false
        myReadCholesterolField.delegate = self
        myReadCholesterolField.borderStyle = UITextBorderStyle.RoundedRect
        myReadCholesterolField.layer.position = CGPoint(x:self.view.bounds.width/2,y:350);
        myReadCholesterolField.enabled = false
        self.view.addSubview(myReadCholesterolField)

        // 読み込みボタンを設置.
        myReadButton = UIButton()
        myReadButton.frame = CGRectMake(0,0,300,40)
        myReadButton.backgroundColor = UIColor.redColor();
        myReadButton.layer.masksToBounds = true
        myReadButton.setTitle("コレステロールの摂取量の読み込み", forState: UIControlState.Normal)
        myReadButton.setTitleColor(UIColor.whiteColor(), forState: UIControlState.Normal)
        myReadButton.setTitleColor(UIColor.blackColor(), forState: UIControlState.Highlighted)
        myReadButton.layer.cornerRadius = 20.0
        myReadButton.layer.position = CGPoint(x: self.view.frame.width/2, y:400)
        myReadButton.tag = 1
        myReadButton.addTarget(self, action: #selector(ViewController.onClickMyButton(_:)), forControlEvents: .TouchUpInside)
        self.view.addSubview(myReadButton)
    }

    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        // HealthStoreへの許可を申請.
        requestAuthorization()
    }

    /*
     ボタンイベント.
     */
    func onClickMyButton(sender: UIButton){
        if(sender.tag == 1){
            readData()
        } else if(sender.tag == 2){
            if let val = Double(myWriteCholesterolField.text!) {
                writeData(val)
            }
        }
    }

    /*
     Healthデータへのアクセスを申請.
     */
    private func requestAuthorization(){
        // 読み込みを許可する型.
        let types = Set(arrayLiteral:
            HKObjectType.quantityTypeForIdentifier(HKQuantityTypeIdentifierDietaryCholesterol)!
        )

        // HealthStoreへのアクセス承認をおこなう.
        myHealthStore.requestAuthorizationToShareTypes(types, readTypes: types, completion: { (success, error) in
            if let e = error {
                print("Error: \(e.localizedDescription)")
            }
            print(success ? "Success" : "Failure")
        })
    }

    /*
     データの読み出し.
     */
    private func readData() {
        // 取得したいデータのタイプを生成.
        let typeOfCholesterol = HKSampleType.quantityTypeForIdentifier(HKQuantityTypeIdentifierDietaryCholesterol)
        let calendar = NSCalendar.init(identifier: NSCalendarIdentifierGregorian)
        let now = NSDate()
        let startDate = calendar!.startOfDayForDate(now)
        let endDate = calendar!.dateByAddingUnit(NSCalendarUnit.Day, value: 1, toDate: startDate, options: NSCalendarOptions.MatchFirst)
        let predicate = HKQuery.predicateForSamplesWithStartDate(startDate, endDate: endDate, options: HKQueryOptions.None)

        // データ取得時に登録された時間でソートするためのDescriptorを生成.
        let mySortDescriptor = NSSortDescriptor(key:HKSampleSortIdentifierStartDate, ascending: false)

        // queryを生成.
        let mySampleQuery = HKSampleQuery(sampleType: typeOfCholesterol!, predicate: predicate, limit: 1, sortDescriptors: [mySortDescriptor])
        { (sampleQuery, results, error ) -> Void in
            if let e = error {
                print("Error: \(e.localizedDescription)")
                return
            }
            // 一番最近に登録されたデータを取得.
            guard let myRecentSample = results!.first as? HKQuantitySample else {
                print("error")
                self.myReadCholesterolField.text = "Data is not found"
                return
            }
            // 取得したサンプルを単位に合わせる.
            dispatch_async(dispatch_get_main_queue(),{
                self.myReadCholesterolField.text = "\(myRecentSample.quantity)"
            })
        }

        // queryを発行.
        self.myHealthStore.executeQuery(mySampleQuery)
    }

    /*
     データの書き込み.
     */
    private func writeData(cholesterol: Double){
        // 入力された値をmgとして扱う.
        let mg = HKUnit.gramUnitWithMetricPrefix(.Milli)
        // Cholesterolのタイプ.
        let typeOfCholesterol = HKObjectType.quantityTypeForIdentifier(HKQuantityTypeIdentifierDietaryCholesterol)
        // Cholesterolデータを作成.
        let myCholesterol = HKQuantity(unit: mg, doubleValue: cholesterol)
        // StoreKit保存用データを作成.
        let myCholesterolData = HKQuantitySample(type: typeOfCholesterol!, quantity: myCholesterol, startDate: NSDate(), endDate: NSDate())

        // HealthStoreにデータを保存.
        myHealthStore.saveObject(myCholesterolData, withCompletion: {success, error in
            if let e = error {
                print("Error: \(e.localizedDescription)")
                return
            }
            print(success ? "Success" : "Failure")
        })
    }
}

2.xと3.xの差分

  • HealthKitの定数が列挙体に変更
    • 例 : HKCharacteristicTypeIdentifierDateOfBirthHKCharacteristicTypeIdentifier.dateOfBirth
  • HKHealthStore.requestAuthorizationToShareTypes(Set<HKSampleType>?, readTypes: Set<HKObjectType>?, completion: (Bool, NSError?) -> Void)からHKHealthStore.requestAuthorization(toShare: Set<HKSampleType>?, read: Set<HKObjectType>?, completion: (Bool, Error?) -> Void)に変更
  • HKObjectType.quantityTypeForIdentifier(String)からHKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier)に変更
  • NSDateからDateに変更
  • dispatch_async(dispatch_queue_t, dispatch_block_t)からDispatchQueue.main.async(execute: () -> Void)に変更
  • HKHealthStore.executeQuery(HKQuery)からHKHealthStore.execute(HKQuery)に変更

References