Apple Watch HKWorkoutSessionStateEnded已触发，但绿色传感器指示灯仍亮着吗？

Question

我正在使用以下代码停止锻炼：

[healthStore endWorkoutSession:workoutSession];

该行触发：

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

“ toState”正变成“ HKWorkoutSessionStateEnded”

到目前为止，一切都很好。但正如Apple Developer Docu所写：

HKWorkoutSessionStateEnded： 手表无法再在后台运行。它的传感器恢复正常，并且不再生成锻炼数据。您无法重新开始或重复使用锻炼课程。

但是Apple Watch传感器仍然呈绿色。我必须停止其他事情吗？

这是我用来设置healthStore的代码：

-(void)initHealthStore
{
    healthStore = [[HKHealthStore alloc] init];

    HKWorkoutConfiguration *configuration = [HKWorkoutConfiguration new];   // start workout
    configuration.activityType = HKWorkoutActivityTypeCrossTraining;
    configuration.locationType = HKWorkoutSessionLocationTypeIndoor;

    workoutSession = [[HKWorkoutSession alloc] initWithConfiguration:configuration error:nil];

    NSInteger wristLocation;
    wristLocation = [[WKInterfaceDevice currentDevice] wristLocation];

    heartRateUnit = [HKUnit unitFromString:@"count/min"];
    anchor = [HKQueryAnchor anchorFromValue:HKAnchoredObjectQueryNoAnchor];
    workoutSession.delegate = self;
}