private void OnDownloadCompleted(bool hasError, string filePath, ActionFileDownload action, object data, bool isSlient)
{
var fileSaved = !hasError;
if (hasError)
{
if (!isSlient)
{
UserDialogs.Instance.Alert("Download Error");
}
}
else
{
// TODO do open file here
switch (action)
{
case ActionFileDownload.Open:
FileService.OpenFile(filePath);
break;
case ActionFileDownload.Download:
UserDialogs.Instance.Toast("File is Downloaded");
var notification = new Plugin.LocalNotification.NotificationRequest
{
NotificationId = 101,
Title = "An item has downloaded ",
Description = "Click to view more detail",
ReturningData = filePath
};
NotificationCenter.Current.Show(notification);
break;
}
}
if (OnFileDownloaded != null)
{
OnFileDownloaded.Invoke(this, new DownloadEventArgs(fileSaved, filePath, data));
}
}
public async Task <string> DownloadFile(string filePath, string folder, object data = null, string fileName = null, bool stillDownloadIfExist = true, bool isDownloadFolder = true, ActionFileDownload action = ActionFileDownload.Download, string fileLocalPath = null, bool isSlient = false)
{
bool permission = await PermissionService.RequestExternalPermssion();
if (!permission)
{
throw new Exception("Permission Denied. Can not continue, please try again.");
}
if (action == ActionFileDownload.Download)
{
RemoveAllTappEvents();
NotificationCenter.Current.NotificationTapped += OpenFile;
openFilesDelegate.Add(OpenFile);
}
// if load file from local
if (!string.IsNullOrEmpty(fileLocalPath))
{
OnDownloadCompleted(false, fileLocalPath, action, data, isSlient);
return(fileLocalPath);
}
string downloadFolder = folder;
if (isDownloadFolder) // if download folder is parent
{
downloadFolder = Path.Combine(FileService.GetDownloadFolder(), folder);
}
try
{
if (!Directory.Exists(downloadFolder))
{
Directory.CreateDirectory(downloadFolder);
}
using (var webClient = new CustomWebClient())
{
webClient.Action = action;
webClient.Data = data;
webClient.Headers.Add("Authorization", "Bearer " + BaseService.AccessToken);
using (webClient.OpenRead(filePath))
{
TotalByDownload = Convert.ToInt64(webClient.ResponseHeaders["Content-Length"]);
}
webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(Completed);
webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged);
var fullPath = Path.Combine(downloadFolder, Path.GetFileName(filePath));
if (fileName != null)
{
fullPath = $"{ downloadFolder }/{fileName}";
}
string fName = AppendFileNumberIfExists(fullPath, "", stillDownloadIfExist);
webClient.FilePath = Path.Combine(downloadFolder, Path.GetFileName(fName));
// just download if file not exist
if (!File.Exists(webClient.FilePath))
{
await webClient.DownloadFileTaskAsync(new Uri(filePath), webClient.FilePath);
}
else
{
// download successfully
OnDownloadCompleted(false, webClient.FilePath, action, data, isSlient);
}
return(webClient.FilePath);
}
}
#pragma warning disable CA1031 // Do not catch general exception types
catch (Exception ex)
{
OnDownloadCompleted(true, string.Empty, action, data, isSlient);
return(string.Empty);
}
#pragma warning restore CA1031 // Do not catch general exception types
}
