async Task ExecuteFindSimilarFaces(FindSimilarMatchMode matchMode, int gridViewResourceId)
{
List <SimilarFaceResult> results = null;
try
{
AddLog($"Request: Find {matchMode.ToString ()} similar faces to {targetFaceListAdapter.SelectedFace.Id} in {faceListAdapter.Count} face(s)");
progressDialog.Show();
progressDialog.SetMessage("Finding Similar Faces...");
SetInfo("Finding Similar Faces...");
results = await FaceClient.Shared.FindSimilar(targetFaceListAdapter.SelectedFace, faceListAdapter.Faces, 4 /*max candidates*/, matchMode);
var resultString = $"Found {results?.Count ?? 0} {matchMode} similar face{(results?.Count != 1 ? "s" : "")}";
AddLog("Response: Success. " + resultString);
AppendInfo(resultString);
}
catch (Exception e)
{
AddLog(e.Message);
}
progressDialog.Dismiss();
// Show the result of face finding similar faces.
var similarFaces = FindViewById <GridView> (gridViewResourceId);
similarFaceListAdapter = new SimilarFaceListAdapter(results, faceListAdapter);
similarFaces.Adapter = similarFaceListAdapter;
}
/// <summary>
/// Finds the similar faces asynchronously.
/// </summary>
/// <param name="faceId">The face identifier.</param>
/// <param name="faceListId">The face list identifier.</param>
/// <param name="mode">Algorithm mode option, default as "matchPerson".</param>
/// <param name="maxNumOfCandidatesReturned">The max number of candidates returned.</param>
/// <returns>
/// The similar persisted faces.
/// </returns>
public async Task <SimilarPersistedFace[]> FindSimilarAsync(Guid faceId, string faceListId, FindSimilarMatchMode mode, int maxNumOfCandidatesReturned = 20)
{
var requestUrl = string.Format("{0}/{1}", ServiceHost, FindSimilarsQuery);
return(await this.SendRequestAsync <object, SimilarPersistedFace[]>(
HttpMethod.Post,
requestUrl,
new
{
faceId = faceId,
faceListId = faceListId,
maxNumOfCandidatesReturned = maxNumOfCandidatesReturned,
mode = mode.ToString()
}));
}