iOS HealthKit功能

1.如下图所示 在Xcode中打开HealthKit功能

2.在需要的地方#import （这里我为了方便直接在viewController写了所有代码，我也在学习这个框架，个人感觉把获取数据权限的代码放在AppDelegate中更好）

获取步数分为两步1.获得权限2.读取步数

3.StoryBoard设计

4.代码部分

ViewController.h

[objc]view plaincopy

#import

#import

@interfaceViewController:UIViewController

@property(nonatomic,strong)HKHealthStore*healthStore;

@end

ViewController.m

[objc]view plaincopy

#import"ViewController.h"

@interfaceViewController()

@property(weak,nonatomic)IBOutletUILabel*StepsLable;

@end

@implementationViewController

-(void)viewDidLoad{

[superviewDidLoad];

self.StepsLable.layer.cornerRadius=self.StepsLable.frame.size.width/2;

self.StepsLable.layer.borderColor=[UIColorredColor].CGColor;

self.StepsLable.layer.borderWidth=5;

self.StepsLable.layer.masksToBounds=YES;

}

#pragmamark获取权限

-(IBAction)getAuthority:(id)sender

{

//查看healthKit在设备上是否可用，iPad上不支持HealthKit

if(![HKHealthStoreisHealthDataAvailable]){

self.StepsLable.text=@"该设备不支持HealthKit";

}

//创建healthStore对象

self.healthStore=[[HKHealthStorealloc]init];

//设置需要获取的权限这里仅设置了步数

HKObjectType*stepType=[HKObjectTypequantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];

NSSet*healthSet=[NSSetsetWithObjects:stepType,nil];

//从健康应用中获取权限

[self.healthStorerequestAuthorizationToShareTypes:nilreadTypes:healthSetcompletion:^(BOOLsuccess,NSError*_Nullableerror){

if(success){

//获取步数后我们调用获取步数的方法

[selfreadStepCount];

}

else

{

self.StepsLable.text=@"获取步数权限失败";

}

}];

}

#pragmamark读取步数查询数据

-(void)readStepCount

{

//查询采样信息

HKSampleType*sampleType=[HKQuantityTypequantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount];

//NSSortDescriptor来告诉healthStore怎么样将结果排序

NSSortDescriptor*start=[NSSortDescriptorsortDescriptorWithKey:HKSampleSortIdentifierStartDateascending:NO];

NSSortDescriptor*end=[NSSortDescriptorsortDescriptorWithKey:HKSampleSortIdentifierEndDateascending:NO];

//获取当前时间

NSDate*now=[NSDatedate];

NSCalendar*calender=[NSCalendarcurrentCalendar];

NSUIntegerunitFlags=NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond;

NSDateComponents*dateComponent=[calendercomponents:unitFlagsfromDate:now];

inthour=(int)[dateComponenthour];

intminute=(int)[dateComponentminute];

intsecond=(int)[dateComponentsecond];

NSDate*nowDay=[NSDatedateWithTimeIntervalSinceNow:-(hour*3600+minute*60+second)];

//时间结果与想象中不同是因为它显示的是0区

NSLog(@"今天%@",nowDay);

NSDate*nextDay=[NSDatedateWithTimeIntervalSinceNow:-(hour*3600+minute*60+second)+86400];

NSLog(@"明天%@",nextDay);

NSPredicate*predicate=[HKQuerypredicateForSamplesWithStartDate:nowDayendDate:nextDayoptions:(HKQueryOptionNone)];

HKSampleQuery*sampleQuery=[[HKSampleQueryalloc]initWithSampleType:sampleTypepredicate:predicatelimit:0sortDescriptors:@[start,end]resultsHandler:^(HKSampleQuery*_Nonnullquery,NSArray<__kindofHKSample*>*_Nullableresults,NSError*_Nullableerror){

//设置一个int型变量来作为步数统计

intallStepCount=0;

for(inti=0;i

//把结果转换为字符串类型

HKQuantitySample*result=results[i];

HKQuantity*quantity=result.quantity;

NSMutableString*stepCount=(NSMutableString*)quantity;

NSString*stepStr=[NSStringstringWithFormat:@"%@",stepCount];

//获取51count此类字符串前面的数字

NSString*str=[stepStrcomponentsSeparatedByString:@""][0];

intstepNum=[strintValue];

NSLog(@"%d",stepNum);

//把一天中所有时间段中的步数加到一起

allStepCount=allStepCount+stepNum;

}

//查询要放在多线程中进行，如果要对UI进行刷新，要回到主线程

[[NSOperationQueuemainQueue]addOperationWithBlock:^{

self.StepsLable.text=[NSStringstringWithFormat:@"%d",allStepCount];

}];

}];

//执行查询

[self.healthStoreexecuteQuery:sampleQuery];

}

-(void)didReceiveMemoryWarning{

[superdidReceiveMemoryWarning];

//Disposeofanyresourcesthatcanberecreated.

}

@end

5.完成效果

点击按钮之后，首先获取获得步数权限··