UserActivityChannel.GetSessionHistoryItemsForUserActivityAsync Metode

Definisi

Ruang nama:

Windows.ApplicationModel.UserActivities

Mendapatkan riwayat sesi untuk aktivitas pengguna.

public:
 virtual IAsyncOperation<IVector<UserActivitySessionHistoryItem ^> ^> ^ GetSessionHistoryItemsForUserActivityAsync(Platform::String ^ activityId, DateTime startTime) = GetSessionHistoryItemsForUserActivityAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<IVector<UserActivitySessionHistoryItem>> GetSessionHistoryItemsForUserActivityAsync(winrt::hstring const& activityId, DateTime const& startTime);

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<IList<UserActivitySessionHistoryItem>> GetSessionHistoryItemsForUserActivityAsync(string activityId, System.DateTimeOffset startTime);

function getSessionHistoryItemsForUserActivityAsync(activityId, startTime)

Public Function GetSessionHistoryItemsForUserActivityAsync (activityId As String, startTime As DateTimeOffset) As IAsyncOperation(Of IList(Of UserActivitySessionHistoryItem))

Parameter

activityId

String

Platform::String

winrt::hstring

Mengidentifikasi aktivitas pengguna untuk mendapatkan riwayat sesi.

startTime

DateTime DateTimeOffset

Dapatkan sesi aktivitas pengguna yang aktif antara startTime dan sekarang.

Mengembalikan

IAsyncOperation<IVector<UserActivitySessionHistoryItem>>

IAsyncOperation<IList<UserActivitySessionHistoryItem>>

Daftar objek sesi aktivitas pengguna yang aktif selama waktu yang ditentukan untuk aktivitas pengguna yang ditentukan.

Atribut

RemoteAsyncAttribute

Persyaratan Windows

Rangkaian perangkat	Windows 10, version 1803 (diperkenalkan dalam 10.0.17134.0)
API contract	Windows.Foundation.UniversalApiContract (diperkenalkan dalam v6.0)

Contoh

private async void GetMostRecentActivity()
{
    UserActivityChannel channel = UserActivityChannel.GetDefault();

    // Gets the 10 most recently engaged UserActivity objects, sorted by engagement EndTime (null EndTimes sort first)
    IList<UserActivitySessionHistoryItem> recentActivity = await channel. GetRecentUserActivitiesAsync(maxUniqueActivities: 10);

    foreach (var activity in recentActivity)
    {
        var engagements = await channel.GetSessionHistoryItemsForUserActivityAsync(activity.UserActivity.ActivityId, new DateTimeOffset(DateTime.Now, TimeSpan.FromDays(1)));

        long totalEngagementTime = 0;
        foreach(var e in engagements)
        {
            if (e.EndTime != null) // EndTime may be null for active UserActivities
            {
                totalEngagementTime += e.EndTime.Value.Ticks - e.StartTime.Ticks);
            }
            // App specific code to display the activity engagement time
        }
    }
}