/// <summary>
/// Save the persistent Cloud Anchors history to local storage,
/// also remove the oldest data if current storage has met maximal capacity.
/// </summary>
/// <param name="data">The Cloud Anchor history data needs to be stored.</param>
public void SaveCloudAnchorHistory(CloudAnchorHistory data)
{
var history = LoadCloudAnchorHistory();
// Sort the data from latest record to oldest record which affects the option order in
// multiselection dropdown.
history.Collection.Add(data);
history.Collection.Sort((left, right) => right.CreatedTime.CompareTo(left.CreatedTime));
// Remove the oldest data if the capacity exceeds storage limit.
if (history.Collection.Count > _storageLimit)
{
history.Collection.RemoveRange(
_storageLimit, history.Collection.Count - _storageLimit);
}
PlayerPrefs.SetString(_persistentCloudAnchorsStorageKey, JsonUtility.ToJson(history));
}
private void HostingCloudAnchor()
{
// There is no anchor for hosting.
if (_anchorComponent == null)
{
return;
}
// There is a pending hosting task.
if (_isHosting)
{
return;
}
// Hosting instructions:
var cameraDist = (_qualityIndicator.transform.position -
Controller.MainCamera.transform.position).magnitude;
if (cameraDist < _qualityIndicator.Radius * 1.5f)
{
InstructionText.text = "You are too close, move backward.";
return;
}
else if (cameraDist > 10.0f)
{
InstructionText.text = "You are too far, come closer.";
return;
}
else if (_qualityIndicator.ReachTopviewAngle)
{
InstructionText.text =
"You are looking from the top view, move around from all sides.";
return;
}
else if (!_qualityIndicator.ReachQualityThreshold)
{
InstructionText.text = "Save the object here by capturing it from all sides.";
// Can pass in ANY valid camera pose to the mapping quality API.
// Ideally, the pose should represent users’ expected perspectives.
DebugText.text = "Current mapping quality: " +
XPSession.EstimateFeatureMapQualityForHosting(GetCameraPose());
return;
}
// Start hosting:
_isHosting = true;
InstructionText.text = "Processing...";
DebugText.text = "Mapping quality has reached sufficient threshold, " +
"creating Cloud Anchor.";
DebugText.text = string.Format(
"FeatureMapQuality has reached {0}, triggering CreateCloudAnchor.",
XPSession.EstimateFeatureMapQualityForHosting(GetCameraPose()));
#if ARCORE_IOS_SUPPORT
var anchor = (UnityARUserAnchorComponent)_anchorComponent;
#else
var anchor = (Anchor)_anchorComponent;
#endif
// Creating a Cloud Anchor with lifetime = 1 day.
// This is configurable up to 365 days when keyless authentication is used.
XPSession.CreateCloudAnchor(anchor, 1).ThenAction(result =>
{
if (!_isHosting)
{
// This is the pending task from previous session.
return;
}
if (result.Response != CloudServiceResponse.Success)
{
Debug.LogFormat("Failed to host cloud anchor: {0}", result.Response);
OnAnchorHostedFinished(false, result.Response.ToString());
}
else
{
Debug.LogFormat("Succeed to host cloud anchor: {0}", result.Anchor.CloudId);
int count = Controller.LoadCloudAnchorHistory().Collection.Count;
_hostedCloudAnchor =
new CloudAnchorHistory("CloudAnchor" + count, result.Anchor.CloudId);
OnAnchorHostedFinished(true, result.Anchor.CloudId);
}
});
}