如何使HKworkoutsession始终是一个积极的锻炼课程

Question

我正在研究苹果手表应用程序,我正在使用HKworkoutsession访问心率数据样本.

在最新的watchos2 beta3发布错误"在活动的锻炼期间,屏幕关闭时不会生成新的心率样本." 是固定的.

我的问题是我怎么能把我的HKworkoutsession总是设置为"积极的锻炼课程",因此我可以随时获得心率样本.

谢谢瑞恩

Answer 1

以下代码是如何开始或停止锻炼课程.

let healthStore = HKHealthStore()
healthStore.startWorkoutSession(workoutSession) {
  (result: Bool, error: NSError?) -> Void in
}

healthStore.stopWorkoutSession(workoutSession) {
  (result: Bool, error: NSError?) -> Void in
}

HKWorkoutSessionDelegate通知其会话状态.

protocol HKWorkoutSessionDelegate : NSObjectProtocol {

func workoutSession(workoutSession: HKWorkoutSession,
  didChangeToState toState: HKWorkoutSessionState,
  fromState: HKWorkoutSessionState, date: NSDate)

func workoutSession(workoutSession: HKWorkoutSession,
  didFailWithError error: NSError)
}

[编辑] 2015/08/31

ObjC版本

HKWorkoutSession *workoutSession = [[HKWorkoutSession alloc] initWithActivityType:HKWorkoutActivityTypeRunning locationType:HKWorkoutSessionLocationTypeOutdoor];
workoutSession.delegate = self;

HKHealthStore *healthStore = [HKHealthStore new];
[healthStore startWorkoutSession:workoutSession];

[healthStore stopWorkoutSession:workoutSession];

HKWrokoutSessionDelegate

- (void)workoutSession:(HKWorkoutSession *)workoutSession
  didChangeToState:(HKWorkoutSessionState)toState
         fromState:(HKWorkoutSessionState)fromState
              date:(NSDate *)date;

- (void)workoutSession:(HKWorkoutSession *)workoutSession didFailWithError:(NSError *)error;

警告:方法名称的更改与最新版本有关,请观看OS 2 beta 5.

stopWorkoutSession已更改为endWorkoutSession.