计算运动时间CMMotionActivity？

Question

我试图计算运动时间（步行或跑步）。 每个CMMotionActivity对象都有一个startDate属性，指示活动开始的时间。但没有迹象显示结束时间。

有没有解决方案？

Answer 1

Every CMMotionActivity object is succeeded by another CMMotionActivity object. Each has a startDate property that indicates the time at which the activity started. Thus, the end time of each CMMotionActivity object is given by the startDate of its successor.