StorageLibrary.AreFolderSuggestionsAvailableAsync Método

Definição

Namespace:

Windows.Storage

Determina se há sugestões para adicionar pastas existentes com conteúdo ao StorageLibrary.

public:
 virtual IAsyncOperation<bool> ^ AreFolderSuggestionsAvailableAsync() = AreFolderSuggestionsAvailableAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<bool> AreFolderSuggestionsAvailableAsync();

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<bool> AreFolderSuggestionsAvailableAsync();

function areFolderSuggestionsAvailableAsync()

Public Function AreFolderSuggestionsAvailableAsync () As IAsyncOperation(Of Boolean)

Retornos

IAsyncOperation<Boolean>

IAsyncOperation<bool>

True se houver sugestões de pasta; Caso contrário, false

Atributos

RemoteAsyncAttribute

Requisitos do Windows

Família de dispositivos	Windows 10 Fall Creators Update (introduzida na 10.0.16299.0)
API contract	Windows.Foundation.UniversalApiContract (introduzida na v5.0)

Exemplos

Este exemplo demonstra como determinar se há pastas sugeridas com conteúdo que possa ser adicionado à biblioteca Imagens.

private async Task<StorageLibrary> SetupPicturesLibraryAsync()
{
    if (this.picturesLibrary == null)
    {
        this.picturesLibrary = await StorageLibrary.GetLibraryAsync(KnownLibraryId.Pictures);
        this.picturesLibrary.DefinitionChanged += PicturesLibrary_DefinitionChanged;
    }
    return this.picturesLibrary;
}

private async void CheckForFolderSuggestions_Clicked(object sender, RoutedEventArgs e)
{
    var library = await SetupPicturesLibraryAsync();

    if (await library.AreFolderSuggestionsAvailableAsync())
    {
        // There are new folders that could be added to the library.
        // Prompt the user to add one or more of them. 

        // Note that the RequestAddFolderAsync method returns only one folder.
        // If the user adds multiple folders, only one will be returned.
        // In this example, to keep track of all the added folders, the app can subscribe to the
        // StorageLibrary.DefinitionChanged event by awaiting library.RequestAddFolderAsync();

        // Launch the folder suggestion dialog
        var folder = await library.RequestAddFolderAsync(); 
    }
}

private void PicturesLibrary_DefinitionChanged(StorageLibrary sender, object args)
{
    foreach (StorageFolder folder in sender.Folders)
    {
        // Do something with every folder in the library
    }
}

Observação

Não se esqueça de incluir a funcionalidade picturesLibrary no manifesto do pacote do aplicativo. Para obter mais informações sobre funcionalidades no manifesto, consulte Declarações de funcionalidade do aplicativo.

Comentários

Se esse recurso não tiver suporte em sua versão do Windows, o método retornará false.