无法使用 HKWorkoutSession 开始锻炼课程

Posted 2023-02-24

【中文标题】无法使用 HKWorkoutSession 开始锻炼课程

【英文标题】：can't start workout session with HKWorkoutSession

【发布时间】：2021-05-14 14:19:34

【问题描述】：

我正在尝试使用 session.startActivity 在 Apple Watch 中开始锻炼，但状态仍为 NotStarted (1)。 尽管如此，似乎锻炼确实开始了，因为我的应用程序在后台运行，而且我的手表也显示了锻炼符号。 后来，当我尝试使用 session.end 停止锻炼时，我收到此错误：

"Unable to transition to the desired state from the NotStarted(1) state (event 6). Allowed transitions from the current state are: 
7 = "<error(7): NotStarted(1) -> Ended(3)>";
1 = "<prepare(1): NotStarted(1) -> Prepared(5)>";
2 = "<start(2): NotStarted(1) -> Running(2)>";" 

根据错误消息，我应该能够执行此操作，因为我处于未启动模式（错误 7）。 有人可以帮忙吗？我迷路了.... 这是我的代码：

var session: HKWorkoutSession? = nil
var builder: HKLiveWorkoutBuilder!

func workout(state: String) 
    
    do 
        session = try HKWorkoutSession(healthStore: healthStore, configuration: configuration)
        builder = session?.associatedWorkoutBuilder()
     catch 
        print("error with workout session")
        return
    
    
    session?.delegate = self
    builder.delegate = self
    builder.dataSource = HKLiveWorkoutDataSource(healthStore: healthStore, workoutConfiguration: configuration)
    
    if (state == "start") 
        session?.startActivity(with: Date())
        builder.beginCollection(withStart: Date())  (success, error) in
            guard success else 
                print("error with builder")
                return
            
        
     else if (state == "end") 
        session?.end()
    


    func workoutSession(_ workoutSession: HKWorkoutSession, didChangeTo toState:     HKWorkoutSessionState, from fromState: HKWorkoutSessionState, date: Date) 
    print("from state: \(fromState.rawValue)")
    print("to state: \(toState.rawValue)")
    if toState == .ended 
        builder.endCollection(withEnd: Date())  (success, error) in
            self.builder.finishWorkout  (workout, error) in
            
        
    
    

【参考方案1】：

“会话” - 您确定它与开始锻炼的对象是同一个对象吗？

开始后，当您稍后调用锻炼（状态：“停止”）时，您会这样做：

func workout(state: String) 
    
    do 
        session = try HKWorkoutSession(healthStore: healthStore, configuration: configuration)

这将覆盖您现有的会话对象，因此您尝试停止的是另一个会话，该会话从未启动，因此无法停止。