private async Task CreateCopy(Uri sourceUri, Uri destinationUri)
{
using (var source = new FileInputStream(ContentResolver.OpenFileDescriptor(sourceUri, "r").FileDescriptor))
{
using (var destination = new FileOutputStream(ContentResolver.OpenFileDescriptor(destinationUri, "w").FileDescriptor))
{
byte[] content = new byte[source.Available()];
await source.ReadAsync(content);
await destination.WriteAsync(content);
destination.Close();
}
}
}
protected async override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (resultCode == Result.Canceled && requestCode == 43)
{
// Notify user file picking was cancelled.
OnDirectoryPickCancelled();
Finish();
}
else
{
System.Diagnostics.Debug.Write(data.Data);
try {
// read the file out of the cache dir
var file = new Java.IO.File(filePath);
var fileLength = (int)file.Length();
byte[] fileBytes = new byte[fileLength];
using (var inputStream = new FileInputStream(filePath))
{
await inputStream.ReadAsync(fileBytes, 0, fileLength);
}
// write the file to the path chosen by the user
using (var pFD = ContentResolver.OpenFileDescriptor(data.Data, "w"))
using (var outputSteam = new FileOutputStream(pFD.FileDescriptor))
{
outputSteam.Write(fileBytes);
}
OnDirectoryPicked(new SavePickerEventArgs(data.Data));
} catch (Exception readEx) {
// Notify user file picking failed.
OnDirectoryPickError(readEx.Message);
System.Diagnostics.Debug.Write(readEx);
} finally {
Finish();
}
}
}