async private void FileExplorerItemSelect(object sender, System.Windows.Input.GestureEventArgs e)
{
FileExplorerItem item = ((FrameworkElement)sender).Tag as FileExplorerItem;
if (item.IsFolder)
{
if (StorageTarget == Interop.StorageTarget.ExternalStorage)
{
GetTreeForExternalFolder(await _externalFolderTree.First().GetFolderAsync(item.Name));
}
else
{
GetTreeForInternalFolder(await _internalFolderTree.First().GetFolderAsync(item.Name));
}
}
else
{
if (SelectionMode == Interop.SelectionMode.File)
{
if (StorageTarget == Interop.StorageTarget.ExternalStorage)
{
ExternalStorageFile file = await _currentStorageDevice.GetFileAsync(item.Path);
Dismiss(file);
}
else
{
StorageFolder folder = _internalFolderTree.Pop();
StorageFile file = await folder.GetFileAsync(item.Name);
Dismiss(file);
}
}
}
}
async void SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (lstCore.SelectedItem != null)
{
FileExplorerItem item = (FileExplorerItem)lstCore.SelectedItem;
if (item.IsFolder)
{
GetTreeForFolder(await _folderTree.First().GetFolderAsync(item.Name));
}
else
{
ExternalStorageFile file = await _currentStorageDevice.GetFileAsync(item.Path);
Dismiss(file);
}
}
}
/// <summary>
/// Gets a file from SD Card
/// </summary>
/// <param name="sdfilePath"></param>
/// <returns>File Stream</returns>
public async Task <Stream> SDCard_ReadFile(string sdfilePath)
{
try
{
ExternalStorageDevice sdcard = (await ExternalStorage.GetExternalStorageDevicesAsync()).FirstOrDefault();
if (sdcard != null)
{
ExternalStorageFile file = await sdcard.GetFileAsync(sdfilePath);
return(await file.OpenForReadAsync());
}
else
{
MessageBox.Show("Please check SD Card");
return(null);
}
}
catch (FileNotFoundException)
{
MessageBox.Show("File not found.");
return(null);
}
}
async public void readfile(string filepath)
{
// enables progress indicator
//ProgressIndicator indicator = SystemTray.ProgressIndicator;
//if (indicator != null)
//{
// //indicator.Text = "载入文件中 ...";
// //indicator.IsVisible = true;
//}
// Connect to the current SD card.
ExternalStorageDevice _sdCard = (await ExternalStorage.GetExternalStorageDevicesAsync()).FirstOrDefault();
// If the SD card is present, add GPX files to the Routes collection.
if (_sdCard != null)
{
try
{
// get file of the specific path
ExternalStorageFile esf = await _sdCard.GetFileAsync(filepath);
if (esf != null)
{
Debug.WriteLine("found file " + esf.Name);
if (esf.Path.EndsWith(".txtx"))
{
// print its content
Stream x = await esf.OpenForReadAsync();
byte[] buffer = new byte[x.Length];
x.Read(buffer, 0, (int)x.Length);
x.Close();
string result = System.Text.Encoding.UTF8.GetString(buffer, 0, buffer.Length);
//Debug.WriteLine(result);
//this.title.Text = "阅读器";
//Debug.WriteLine("title changed");
//this.content.Text = result.Substring(0, 10000);
//Debug.WriteLine("content changed");
this.contentString = result;
// cut content into pages
this.cutContentIntoPages();
// display first page
this.currentPage = 0;
this.displayCurrentPage();
}
}
Debug.WriteLine("done");
}
catch (FileNotFoundException)
{
// No Routes folder is present.
this.content.Text = "Error loading file, reason: file not found";
Debug.WriteLine("file not found.");
}
}
else
{
// No SD card is present.
Debug.WriteLine("The SD card is mssing.");
}
}