List <Activity> CreateActivityDataWithActivities(CMMotionActivity[] activities, Action completionHandler)
{
var results = new List <Activity> ();
var group = DispatchGroup.Create();
var queue = new DispatchQueue("resultQueue");
var filteredActivities = activities.Where(activity => activity.HasActivitySignature() &&
!activity.Stationary &&
activity.Confidence != CMMotionActivityConfidence.Low).ToArray <CMMotionActivity> ();
var activitySegments = FindActivitySegments(filteredActivities);
foreach (var segment in activitySegments)
{
group.Enter();
pedometer.QueryPedometerData(segment.Item1.StartDate, (NSDate)segment.Item2, (pedometerData, error) => {
queue.DispatchAsync(() => {
var activity = new Activity(segment.Item1,
((DateTime)segment.Item1.StartDate).ToLocalTime(),
segment.Item2.ToLocalTime(),
pedometerData);
results.Add(activity);
});
if (error != null)
{
HandleError(error);
}
group.Leave();
});
}
group.Notify(DispatchQueue.MainQueue, () => {
queue.DispatchSync(() => {
RecentActivities = results;
RecentActivities.Reverse();
completionHandler?.Invoke();
});
});
return(results);
}
