iOS 获取健康里的信息(步数和公里数)

//第一步

打开项目--点击capabilities 将HealthKit 打开  如下图

//第二步

1.首先新建一个类 -- 继承NSObject

在.h中

#define HKVersion [[[UIDevice currentDevice] systemVersion] doubleValue]
#define CustomHealthErrorDomain @"com.sdqt.healthError"
@interface HealthKitManage : NSObject
@property (nonatomic, strong) HKHealthStore *healthStore;
+(id)shareInstance;
- (void)authorizeHealthKit:(void(^)(BOOL success, NSError *error))compltion;
- (void)getDistance:(void(^)(double value, NSError *error))completion;
- (void)getStepCount:(void(^)(double value, NSError *error))completion;

+(id)shareInstance
{static id manager ;static dispatch_once_t onceToken;dispatch_once(&onceToken, ^{manager = [[[self class] alloc] init];});return manager;
}
- (void)authorizeHealthKit:(void(^)(BOOL success, NSError *error))compltion
{if(HKVersion >= 8.0){if (![HKHealthStore isHealthDataAvailable]) {NSError *error = [NSError errorWithDomain: @"com.raywenderlich.tutorials.healthkit" code: 2 userInfo: [NSDictionary dictionaryWithObject:@"HealthKit is not available in th is Device"