public ulong GetAvailableDiskSpace(FolderUri uri)
{
try
{
Java.Lang.Process proc =
Java.Lang.Runtime.GetRuntime().Exec(String.Format("df {0}", uri.AbsolutePath));
proc.WaitFor();
var resi = proc.InputStream;
var rdr = new StreamReader(resi);
string str = rdr.ReadToEnd();
string[] lines = str.Split('\n');
if (lines.Length < 2)
{
throw new InvalidOperationException("Unable to get size from shell.");
}
string[] entries = lines[1]
.Split(' ')
.Where(e => !String.IsNullOrWhiteSpace(e))
.ToArray();
string entry = entries[3];
ulong value = (ulong)Int32.Parse(entry.Substring(0, entry.Length - 1));
string unit = entry.Substring(entry.Length - 1, 1);
switch (unit)
{
// Value is in bytes
case "B":
return(value);
// Value is in Kbytes
case "K":
return(value * 1024);
// Value is in Mbytes
case "M":
return(value * 1024 * 1024);
// Value is in Gbytes
case "G":
return(value * 1024 * 1024 * 1024);
default:
throw new InvalidOperationException("Unknown size unit.");
}
}
catch (Exception ex)
{
StatFs stats = new StatFs(uri.AbsolutePath);
return((ulong)(stats.AvailableBlocks * stats.BlockSize));
}
}
public void DeleteFolder(FolderUri uri)
{
if (uri.Location == StorageLocation.Bundle)
{
throw new InvalidOperationException("Unable to delete folder inside the bundle.");
}
_fileSystemPlatform.DeleteFolder(uri);
}
public ulong GetAvailableDiskSpace(FolderUri uri)
{
ulong totalFreeSpace = 0;
// Use below as suggested by Miguel de Icaza :)
NSFileSystemAttributes values = NSFileManager.DefaultManager.GetFileSystemAttributes(uri.AbsolutePath);
totalFreeSpace = values.FreeSize;
return(totalFreeSpace);
}
public FileUri[] GetFolderFiles(FolderUri uri, string searchPattern, bool recursive)
{
string[] filePaths = _fileSystemPlatform.GetFolderFiles(uri, searchPattern, recursive);
if (filePaths == null)
{
return(null);
}
List <FileUri> fileUris = filePaths
.Select(x => CreateFileUri(Path.Combine(uri.Uri, x.Replace(uri.AbsolutePath + "/", String.Empty))))
.ToList();
return(fileUris.ToArray());
}
public bool FolderExists(FolderUri uri)
{
return(Directory.Exists(uri.AbsolutePath));
}
public void DeleteFolder(FolderUri uri)
{
Directory.Delete(uri.AbsolutePath, true);
}
public void CreateFolder(FolderUri uri)
{
Directory.CreateDirectory(uri.AbsolutePath);
}
public string[] GetFolderFiles(FolderUri uri, string searchPattern, bool recursive)
{
return
(Directory.GetFiles(uri.AbsolutePath, searchPattern, recursive ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly));
}
public bool FolderExists(FolderUri uri)
{
return(_fileSystemPlatform.FolderExists(uri));
}
public ulong GetAvailableDiskSpace(FolderUri uri)
{
return(_fileSystemPlatform.GetAvailableDiskSpace(uri));
}
