速攻でHealthKitを使用して歩行と走行距離を取得する方法

Question

私は健康アプリケーションを作っています。私はSwiftのwalkingRunningDistanceをHealthKitにしたいと思っています。しかし、私には問題があります。戻り値は0.0mileです。

なぜ戻り値が0マイルですか？

私のコードはこれです。

func recentSteps3(completion: (Double, NSError?) ->()){ 
    let type = HKSampleType.quantityTypeForIdentifier(HKQuantityTypeIdentifierDistanceWalkingRunning) 

    let date = NSDate() 

    let cal = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)! 

    let newDate = cal.startOfDayForDate(date) 

    let predicate = HKQuery.predicateForSamplesWithStartDate(newDate, endDate: NSDate(), options: HKQueryOptions.StrictStartDate) 

    let query = HKSampleQuery(sampleType: type!, predicate: predicate, limit: HKObjectQueryNoLimit, sortDescriptors: nil) { query, results, error in 

     var distance: Double = 0 

     if results?.count > 0 
     { 
      for result in results as! [HKQuantitySample] 
      { 
       distance += result.quantity.doubleValueForUnit(HKUnit.mileUnit()) 
      } 
     } 

     completion(distance, error) 
    } 

    healthAuth.healthStore.executeQuery(query) 
} 

Answer 1

あなたのコードは、ユーザーがアプリの許可を与えたHealthKit

から distanceWalkingRunningを読むために、ユーザからの許可を要求している

1. 場合は値を返します。

、あなたのコードは、承認を要求するには0

を返しますされていない場合、あなたはtypesToRead私はHKStatisticsQueryを使用していることを信じて

let distanceType = HKSampleType.quantityType(forIdentifier: HKQuantityTypeIdentifier.distanceWalkingRunning)! 

かが含まれてい

func requestAuthorization(toShare typesToShare: Set<HKSampleType>?, read typesToRead: Set<HKObjectType>?, completion: @escaping (Bool, Error?) -> Swift.Void) 

を呼び出すことができますHKStatisticsCollectionQueryがより効率的になります。ここに例があります。

guard let type = HKSampleType.quantityType(forIdentifier: .distanceWalkingRunning) else { 
    fatalError("Something went wrong retriebing quantity type distanceWalkingRunning") 
} 
let date = NSDate() as Date 
let cal = Calendar(identifier: Calendar.Identifier.gregorian) 
let newDate = cal.startOfDay(for: date) 

let predicate = HKQuery.predicateForSamples(withStart: newDate as Date, end: NSDate() as Date, options: .strictStartDate) 

let query = HKStatisticsQuery(quantityType: type, quantitySamplePredicate: predicate, options: [.cumulativeSum]) { (query, statistics, error) in   
    var value: Double = 0 

    if error != nil { 
     print("something went wrong") 
    } else if let quantity = statistics?.sumQuantity() { 
     value = quantity.doubleValue(for: HKUnit.mile()) 
    } 
    DispatchQueue.main.async { 
     completion(value) 
    } 
} 
healthStore.execute(query) 

Answer 2

healthStore =[HKHealthStore new]; 
HKQuantityType *stepType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount]; 
HKSampleType *sleepType = [HKSampleType categoryTypeForIdentifier:HKCategoryTypeIdentifierSleepAnalysis]; 
HKQuantityType *walkType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierDistanceWalkingRunning]; 
NSArray *arrayType = @[stepType,sleepType,walkType]; 

[healthStore requestAuthorizationToShareTypes:[NSSet setWithArray:arrayType] 
            readTypes:[NSSet setWithArray:arrayType] completion:^(BOOL succeeded, NSError *error) { 
             if (succeeded) { 
              NSLog(@"Not working"); 
              NSLog(@"error %@",error); 
             } else { 
              NSLog(@"Working!"); 
              NSLog(@"error %@",error); 
             } 
             [self getStepCount]; 
            }]; 

-(void)getStepCount{ 
    NSInteger limit = 0; 
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; 
    [dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"]; 
    NSDate *startDate = [NSDate dateWithTimeIntervalSince1970:1372418789]; 
    // Divided by 1000 (i.e. removed three trailing zeros) ^^^^^^^^ 
    NSString *formattedDateString = [dateFormatter stringFromDate:startDate]; 
    // Fri, 28 Jun 2013 11:26:29 GMT 
    NSLog(@"start Date: %@", formattedDateString); 
    NSDateFormatter *dateFormatter1=[[NSDateFormatter alloc] init]; 
    [dateFormatter1 setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; 
    NSLog(@"%@",[dateFormatter1 stringFromDate:[NSDate date]]); 
    NSString *dateString =[dateFormatter1 stringFromDate:[NSDate date]]; 
    NSDate *endDate = [dateFormatter1 dateFromString:dateString]; 


NSPredicate *predicate = [HKQuery predicateForSamplesWithStartDate:startDate endDate:endDate options:HKQueryOptionStrictEndDate]; 

HKSampleQuery *query = [[HKSampleQuery alloc] initWithSampleType:[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierDistanceWalkingRunning] 
         predicate: predicate 
         limit: limit 
         sortDescriptors: nil 
         resultsHandler:^(HKSampleQuery *query, NSArray* results, NSError *error){ 
          dispatch_async(dispatch_get_main_queue(), ^{ 
           // sends the data using HTTP 
           int dailyAVG = 0; 
           NSLog(@"result : %@",results); 
           for(HKQuantitySample *samples in results) 
           { 
            NSLog(@"dailyAVG : %@",samples); 
           } 
           NSLog(@"dailyAVG : %d",dailyAVG); 

           NSLog(@"%@",@"Done"); 
          }); 
         }]; 
[healthStore executeQuery:query]; 

}