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heartRateSample(觀看OS2)我使用獲取日期/時間HKQuantitySample - >從HealthKit
-(void)updateHeartRate:(NSArray<__kindof HKSample *> *)samples
檢索來自內部鐘錶傳感器HearteRate。根據不同的應用程序在後臺時(停用)幾個heartRateSamples必須使用檢索:
if (samples.count>0) {
for (HKQuantitySample *heartRateSample in samples) {
dispatch_async(dispatch_get_main_queue(), ^{
if (heartRateSample) {
NSLog(@"HEART RATE: %@", [@([heartRateSample.quantity doubleValueForUnit:heartRateUnit]) stringValue]);
}
});
}
}
,但我怎麼能檢索當特定樣品寫入HealthKit的日期/時間?
下面是新的NSLog行:的NSLog(@「%@ - HEART RATE:%@ /開始日期:%@/Endate :[自動類],[@([heartRateSample.quantity doubleValueForUnit:heartRateUnit])stringValue],[formatter stringFromDate:heartRateSample.startDate],[formatter stringFromDate:heartRateSample.endDate]); –