- (void)queryStepCount
{
if (![HKHealthStore isHealthDataAvailable])
{
NSLog(@"设备不支持healthKit"); return;
}
_healthStore = [[HKHealthStore alloc] init];
HKObjectType *type1 = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount]; // 步数
NSSet *set = [NSSet setWithObjects:type1, nil]; // 读集合
__weak typeof (&*self) weakSelf = self;
[_healthStore requestAuthorizationToShareTypes:nil readTypes:set completion:^(BOOL success, NSError * _Nullable error) {
if (success)
{
[weakSelf readStepCount];
} else
{
NSLog(@"healthkit不允许读写");
}
}];
}
//查询数据
- (void)readStepCount
{
//查询采样信息
HKQuantityType *sampleType = [HKQuantityType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];
//NSSortDescriptors用来告诉healthStore怎么样将结果排序。
NSSortDescriptor *start = [NSSortDescriptor sortDescriptorWithKey:HKSampleSortIdentifierStartDate ascending:NO];
NSSortDescriptor *end = [NSSortDescriptor sortDescriptorWithKey:HKSampleSortIdentifierEndDate ascending:NO];
/*查询的基类是HKQuery，这是一个抽象类，能够实现每一种查询目标，这里我们需要查询的步数是一个
HKSample类所以对应的查询类就是HKSampleQuery。
下面的limit参数传1表示查询最近一条数据,查询多条数据只要设置limit的参数值就可以了
*/
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
NSDateComponents *dateCom = [calendar components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit fromDate:[NSDate date]];
NSDate *startDate, *endDate;
endDate = [calendar dateFromComponents:dateCom];
[dateCom setHour:0];
[dateCom setMinute:0];
[dateCom setSecond:0];
startDate = [calendar dateFromComponents:dateCom];
NSPredicate *predicate = [HKQuery predicateForSamplesWithStartDate:startDate endDate:endDate options:HKQueryOptionStrictStartDate];
// 从锚点为0处开始查询符合条件的所有记录
HKAnchoredObjectQuery *q1 = [[HKAnchoredObjectQuery alloc] initWithType:sampleType predicate:predicate anchor:HKAnchoredObjectQueryNoAnchor limit:HKObjectQueryNoLimit completionHandler:^(HKAnchoredObjectQuery * _Nonnull query, NSArray<__kindof HKSample *> * _Nullable results, NSUInteger newAnchor, NSError * _Nullable error) {
double sum = 0;
// NSLog(@"results==%@", results);
for (HKQuantitySample *res in results)
{
sum += [res.quantity doubleValueForUnit:[HKUnit countUnit]];
}
NSLog(@"Anchor%@查询步数=%@步", @(newAnchor), @(sum));
}];
// 从锚点为0处开始查询符合条件的一条记录，查询结果得到的锚点是12160
HKAnchoredObjectQuery *q2 = [[HKAnchoredObjectQuery alloc] initWithType:sampleType predicate:predicate anchor:HKAnchoredObjectQueryNoAnchor limit:1 completionHandler:^(HKAnchoredObjectQuery * _Nonnull query, NSArray<__kindof HKSample *> * _Nullable results, NSUInteger newAnchor, NSError * _Nullable error) {
double sum = 0;
// NSLog(@"results==%@", results);
for (HKQuantitySample *res in results)
{
sum += [res.quantity doubleValueForUnit:[HKUnit countUnit]];
}
NSLog(@"Anchor%@查询步数=%@步", @(newAnchor), @(sum));
}];
// 从锚点12160处开始查询符合条件的一条记录，锚点起到分页查询的作用
HKAnchoredObjectQuery *q3 = [[HKAnchoredObjectQuery alloc] initWithType:sampleType predicate:predicate anchor:12160 limit:1 completionHandler:^(HKAnchoredObjectQuery * _Nonnull query, NSArray<__kindof HKSample *> * _Nullable results, NSUInteger newAnchor, NSError * _Nullable error) {
double sum = 0;
// NSLog(@"results==%@", results);
for (HKQuantitySample *res in results)
{
sum += [res.quantity doubleValueForUnit:[HKUnit countUnit]];
NSLog(@"device name:%@", res.device.name);
NSLog(@"device manufacturer:%@", res.device.manufacturer);
NSLog(@"device hardwareVersion:%@", res.device.hardwareVersion);
NSLog(@"device firmwareVersion:%@", res.device.firmwareVersion);
NSLog(@"device softwareVersion:%@", res.device.softwareVersion);
NSLog(@"device localIdentifier:%@", res.device.localIdentifier);
NSLog(@"device UDIDeviceIdentifier:%@", res.device.UDIDeviceIdentifier);
NSLog(@"uuid:%@", res.UUID);
HKSource *source = nil;
if ([UIDevice currentDevice].systemVersion.floatValue >= 8)
{
source = res.sourceRevision.source;
NSLog(@"source version:%@", res.sourceRevision.version);
} else
{
source = res.source;
}
NSLog(@"source:%@", source.name);
NSLog(@"source:%@", source.bundleIdentifier);
NSLog(@"metadata:%@", res.metadata);
}
NSLog(@"Anchor%@查询步数=%@步", @(newAnchor), @(sum));
}];
//执行查询
[_healthStore executeQuery:q1];
[_healthStore executeQuery:q2];
[_healthStore executeQuery:q3];
}