public AddNanoseconds ( [ nanoseconds ) : void | ||
nanoseconds | [ | |
return | void |
/// <summary> /// Invoked when 'Get History' button is clicked. /// Depending on the user selection, this handler uses one of the overloaded /// 'GetSystemHistoryAsync' APIs to retrieve the pedometer history of the user /// </summary> /// <param name="sender">unused</param> /// <param name="e">unused</param> async private void GetHistory_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e) { IReadOnlyList<PedometerReading> historyReadings = null; DateTimeFormatter timestampFormatter = new DateTimeFormatter("shortdate longtime"); // Disable subsequent history retrieval while the async operation is in progress GetHistory.IsEnabled = false; // clear previous content being displayed historyRecords.Clear(); try { if (getAllHistory) { DateTime dt = DateTime.FromFileTimeUtc(0); DateTimeOffset fromBeginning = new DateTimeOffset(dt); rootPage.NotifyUser("Retrieving all available History", NotifyType.StatusMessage); historyReadings = await Pedometer.GetSystemHistoryAsync(fromBeginning); } else { String notificationString = "Retrieving history from: "; Calendar calendar = new Calendar(); calendar.ChangeClock("24HourClock"); // DateTime picker will also include hour, minute and seconds from the the system time. // Decrement the same to be able to correctly add TimePicker values. calendar.SetDateTime(FromDate.Date); calendar.AddNanoseconds(-calendar.Nanosecond); calendar.AddSeconds(-calendar.Second); calendar.AddMinutes(-calendar.Minute); calendar.AddHours(-calendar.Hour); calendar.AddSeconds(Convert.ToInt32(FromTime.Time.TotalSeconds)); DateTimeOffset fromTime = calendar.GetDateTime(); calendar.SetDateTime(ToDate.Date); calendar.AddNanoseconds(-calendar.Nanosecond); calendar.AddSeconds(-calendar.Second); calendar.AddMinutes(-calendar.Minute); calendar.AddHours(-calendar.Hour); calendar.AddSeconds(Convert.ToInt32(ToTime.Time.TotalSeconds)); DateTimeOffset toTime = calendar.GetDateTime(); notificationString += timestampFormatter.Format(fromTime); notificationString += " To "; notificationString += timestampFormatter.Format(toTime); if (toTime.ToFileTime() < fromTime.ToFileTime()) { rootPage.NotifyUser("Invalid time span. 'To Time' must be equal or more than 'From Time'", NotifyType.ErrorMessage); // Enable subsequent history retrieval while the async operation is in progress GetHistory.IsEnabled = true; } else { TimeSpan span; span = TimeSpan.FromTicks(toTime.Ticks - fromTime.Ticks); rootPage.NotifyUser(notificationString, NotifyType.StatusMessage); historyReadings = await Pedometer.GetSystemHistoryAsync(fromTime, span); } } if (historyReadings != null) { foreach(PedometerReading reading in historyReadings) { HistoryRecord record = new HistoryRecord(reading); historyRecords.Add(record); } rootPage.NotifyUser("History retrieval completed", NotifyType.StatusMessage); } } catch (UnauthorizedAccessException) { rootPage.NotifyUser("User has denied access to activity history", NotifyType.ErrorMessage); } // Finally, re-enable history retrieval GetHistory.IsEnabled = true; }
/// <summary> /// Invoked when 'Get History' button is clicked. /// Depending on the user selection, this handler uses one of the overloaded /// 'GetSystemHistoryAsync' APIs to retrieve the pedometer history of the user /// </summary> /// <param name="sender">unused</param> /// <param name="e">unused</param> async private void GetHistory_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e) { GetHistory.IsEnabled = false; // Determine if we can access pedometers var deviceAccessInfo = DeviceAccessInformation.CreateFromDeviceClassId(PedometerClassId); if (deviceAccessInfo.CurrentStatus == DeviceAccessStatus.Allowed) { // Determine if a pedometer is present // This can also be done using Windows::Devices::Enumeration::DeviceInformation::FindAllAsync var sensor = await Pedometer.GetDefaultAsync(); if (sensor != null) { IReadOnlyList<PedometerReading> historyReadings = null; var timestampFormatter = new DateTimeFormatter("shortdate longtime"); // Disable subsequent history retrieval while the async operation is in progress GetHistory.IsEnabled = false; // clear previous content being displayed historyRecords.Clear(); try { if (getAllHistory) { var dt = DateTime.FromFileTimeUtc(0); var fromBeginning = new DateTimeOffset(dt); rootPage.NotifyUser("Retrieving all available History", NotifyType.StatusMessage); historyReadings = await Pedometer.GetSystemHistoryAsync(fromBeginning); } else { String notificationString = "Retrieving history from: "; var calendar = new Calendar(); calendar.ChangeClock("24HourClock"); // DateTime picker will also include hour, minute and seconds from the the system time. // Decrement the same to be able to correctly add TimePicker values. calendar.SetDateTime(FromDate.Date); calendar.AddNanoseconds(-calendar.Nanosecond); calendar.AddSeconds(-calendar.Second); calendar.AddMinutes(-calendar.Minute); calendar.AddHours(-calendar.Hour); calendar.AddSeconds(Convert.ToInt32(FromTime.Time.TotalSeconds)); DateTimeOffset fromTime = calendar.GetDateTime(); calendar.SetDateTime(ToDate.Date); calendar.AddNanoseconds(-calendar.Nanosecond); calendar.AddSeconds(-calendar.Second); calendar.AddMinutes(-calendar.Minute); calendar.AddHours(-calendar.Hour); calendar.AddSeconds(Convert.ToInt32(ToTime.Time.TotalSeconds)); DateTimeOffset toTime = calendar.GetDateTime(); notificationString += timestampFormatter.Format(fromTime); notificationString += " To "; notificationString += timestampFormatter.Format(toTime); if (toTime.ToFileTime() < fromTime.ToFileTime()) { rootPage.NotifyUser("Invalid time span. 'To Time' must be equal or more than 'From Time'", NotifyType.ErrorMessage); // Enable subsequent history retrieval while the async operation is in progress GetHistory.IsEnabled = true; } else { TimeSpan span = TimeSpan.FromTicks(toTime.Ticks - fromTime.Ticks); rootPage.NotifyUser(notificationString, NotifyType.StatusMessage); historyReadings = await Pedometer.GetSystemHistoryAsync(fromTime, span); } } if (historyReadings != null) { foreach (PedometerReading reading in historyReadings) { HistoryRecord record = new HistoryRecord(reading); historyRecords.Add(record); // Get at most 100 records (number is arbitrary chosen for demonstration purposes) if (historyRecords.Count == 100) { break; } } rootPage.NotifyUser("History retrieval completed", NotifyType.StatusMessage); } } catch (UnauthorizedAccessException) { rootPage.NotifyUser("User has denied access to activity history", NotifyType.ErrorMessage); } // Finally, re-enable history retrieval GetHistory.IsEnabled = true; } else { rootPage.NotifyUser("No pedometers found", NotifyType.ErrorMessage); } } else { rootPage.NotifyUser("Access to pedometers is denied", NotifyType.ErrorMessage); } }