/// <summary>
/// Find and return device by description. Only return device which connected as MTP / PTP.
/// </summary>
/// <param name="deviceDescription">Device description</param>
/// <returns></returns>
public MediaDevice GetDevice(string deviceDescription)
{
MediaDevice ptrDevice = GetDevices().FirstOrDefault(x => x.Description == deviceDescription);
if (ptrDevice == null)
{
return(null);
}
//Enumerate Directory to ensure Media Device in MTP or PTP Mode.
//By default, Android device is connected as USB Charging only with no file access.
ptrDevice.Connect();
MediaDirectoryInfo rootInfo = ptrDevice.GetRootDirectory();
try
{
var dirs = rootInfo.EnumerateDirectories();
if (rootInfo.EnumerateDirectories().Count() > 0)
{
return(ptrDevice);
}
}
catch { ptrDevice.Dispose(); ptrDevice = null; }
return(null);
}
/// <summary>
/// Refreshes the state of the object.
/// </summary>
public virtual void Refresh()
{
ObjectProperties prop = this.device.GetProperties(this.id);
Guid contentType = prop.ContentType;
MediaFileAttributes attributes;
string name;
if (this.id == Item.RootId)
{
name = this.device.DirectorySeparatorChar.ToString();
attributes = MediaFileAttributes.Object;
}
else if (contentType == WPD.CONTENT_TYPE_FUNCTIONAL_OBJECT)
{
name = prop.Name;
attributes = MediaFileAttributes.Object;
}
else if (contentType == WPD.CONTENT_TYPE_FOLDER)
{
name = prop.OriginalFileName;
attributes = MediaFileAttributes.Directory;
}
else
{
name = prop.OriginalFileName;
attributes = MediaFileAttributes.Normal;
}
attributes |= prop.CanDelete ? MediaFileAttributes.CanDelete : 0;
attributes |= prop.IsSystem ? MediaFileAttributes.System : 0;
attributes |= prop.IsHidden ? MediaFileAttributes.Hidden : 0;
attributes |= prop.IsDRMProtected ? MediaFileAttributes.DRMProtected : 0;
this.Name = name;
this.Length = prop.Size;
this.CreationTime = prop.DateCreated;
this.LastWriteTime = prop.DateModified;
this.DateAuthored = prop.DateAuthored;
this.Attributes = attributes;
this.parentId = prop.ParentId;
this.parent = null; // create once if needed
this.fullName = null; // create once if needed
}
/// <summary>
/// Gets the parent directory of a specified subdirectory.
/// </summary>
protected MediaDirectoryInfo GetParent()
{
return(this.parent ?? (string.IsNullOrEmpty(this.parentId) ? null : (this.parent = new MediaDirectoryInfo(this.device, this.parentId))));
}