/// <param name="url">The shared document's URL.</param> /// <param name="completionHandler"> /// <para>An action the system calls subsequent to the creation of a placeholder.</para> /// <para tool="nullallowed">This parameter can be <see langword="null" />.</para> /// </param> /// <summary>When implemented by the developer, creates a specified placeholder for a previously defined URL.</summary> /// <remarks> /// <para>The developer must override this method. This method is called to provide a placeholder for documents that are returned by the Document Picker but that are not locally stored.</para> /// <para tool="threads">This can be used from a background thread.</para> /// </remarks> public override void ProvidePlaceholderAtUrl(NSUrl url, Action <NSError> completionHandler) { try { string identifier = this.GetPersistentIdentifier(url); ItemMetadata itemMetadata = this.StorageManager.GetItemMetadata(identifier); if (!itemMetadata.IsExists) { completionHandler?.Invoke(NSFileProviderErrorFactory.CreateNonExistentItemError(identifier)); return; } NSUrl placeholderUrl = NSFileProviderManager.GetPlaceholderUrl(url); NSError error; NSFileManager.DefaultManager.CreateDirectory(placeholderUrl.RemoveLastPathComponent(), true, null, out error); if (error != null) { completionHandler?.Invoke(error); return; } INSFileProviderItem providerItem = ProviderItem.CreateFromMetadata(itemMetadata); NSFileProviderManager.WritePlaceholder(placeholderUrl, providerItem, out error); completionHandler?.Invoke(error); } catch (Exception ex) { NSError error = this.MapError(ex); completionHandler?.Invoke(error); } }
private void LoadArExperienceIfRequired() { NSUrl experienceURLValidator(string URL) { if (URL.Contains("https")) { return(NSUrl.FromString(URL)); } else { NSUrl relativeArExperienceURL = NSUrl.FromString(currentArExperience.Path); string bundleSubdirectory = "ARchitectExamples/" + relativeArExperienceURL.RemoveLastPathComponent().AbsoluteString; NSUrl bundleArExperienceURL = NSBundle.MainBundle.GetUrlForResource("index", "html", bundleSubdirectory); return(bundleArExperienceURL); } } NSUrl fullArExperienceURL = experienceURLValidator(currentArExperience.Path); if (loadedArExperienceNavigation == null || (loadedArExperienceNavigation != null && !loadedArExperienceNavigation.OriginalURL.Equals(fullArExperienceURL))) { loadingArExperienceNavigation = architectView.LoadArchitectWorldFromURL(fullArExperienceURL); } }