IStorageProviderKnownFolderSyncInfoSource.GetKnownFolderSyncInfo 方法
定义
重要
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每当需要从云提供商获取最新的已知文件夹同步状态时，文件资源管理器将调用 GetKnownFolderSyncInfo。
public:
StorageProviderKnownFolderSyncInfo ^ GetKnownFolderSyncInfo();StorageProviderKnownFolderSyncInfo GetKnownFolderSyncInfo();public StorageProviderKnownFolderSyncInfo GetKnownFolderSyncInfo();function getKnownFolderSyncInfo()Public Function GetKnownFolderSyncInfo () As StorageProviderKnownFolderSyncInfo返回
返回一个 StorageProviderKnownFolderSyncInfo 对象，该对象包含最新的已知文件夹同步状态。
示例
以下示例演示如何在云提供程序中实现 GetKnownFolderSyncInfo 。
StorageProviderKnownFolderSyncInfo MyKnownFolderInfoSource::GetKnownFolderSyncInfo()
{
winrt::StorageProviderKnownFolderSyncInfo info{};
info.ProviderDisplayName(GetProviderDisplayName());
// Setting a SyncRequested handler to respond to user action.
auto syncRequestHandler = [](
winrt::CloudMirror::StorageProviderKnownFolderSyncRequestArgs const& args)
{
// The user wants to sync some known folders with our cloud provider.
// We can show some UI to sign in, confirm their choice, etc.
MyStorageProviderSyncManager::ShowFolderEnrollmentUI(args.KnownFolders(), args.Source());
// Or we can immediately start syncing the requested folders.
MyStorageProviderSyncManager::StartSyncingFolders(args.KnownFolders(), args.Source());
};
info.SyncRequested(syncRequestHandler);
info.KnownFolderEntries().ReplaceAll(m_knownFolderEntries);
return info;
}
注解
返回后， StorageProviderKnownFolderSyncInfo 被视为不可变。
必须在返回的对象上设置 SyncRequested 处理程序，才能被视为有效并显示在文件资源管理器中。