private async void LstAttachments_ItemSelected(object sender, SelectedItemChangedEventArgs e)
{
try
{
if (e.SelectedItem == null)
{
return;
}
Attachment att = (Attachment)e.SelectedItem;
lstAttachments.SelectedItem = null;
string attDir = GetAttachmentDir(this.inboxMessage);
string file = fileSystem.JoinPaths(attDir, FileHelper.SanitizeFileName(att.NomeArquivo));
att.Loading = true;
bool fileExists = fileSystem.FileExists(file);
using (var stream = fileSystem.GetFileStream(file))
{
if (!fileExists || stream.Length < att.Tamanho)
{
await HttpRequest.DownloadFileToStream(EndPointHelper.GetAbsoluteUrl(att.Url), stream);
stream.Flush();
}
}
att.Loading = false;
ShareViewModel share = new ShareViewModel();
share.FileName = file;
share.MimeType = att.MimeType;
share.Share();
} catch (Exception ex)
{
await DisplayAlert(AppResources.APP_TITLE, ex.Message, AppResources.OK);
}
}
private void ShowPDF()
{
string pdfFolder = GetPDFDir(this.SignatureRequest);
string fileName = fileSystem.JoinPaths(pdfFolder, "document.pdf");
fileSystem.CreateFolder(pdfFolder);
using (var stream = fileSystem.GetFileStream(fileName))
{
stream.Write(Document.PdfContent, 0, Document.PdfContent.Length);
stream.Flush();
}
HtmlWebViewSource html = new HtmlWebViewSource();
if (Device.OS != TargetPlatform.iOS)
{
//Existe um bug no WebView do iOS: https://developer.xamarin.com/guides/xamarin-forms/working-with/webview/
html.BaseUrl = DependencyService.Get <IBaseUrl>().Get();
}
string pageSource = String.Format(
@"<html>
<head>
<script type = 'text/javascript'>
var url = 'file://{0}';
</script>
<script type='text/javascript' src='compatibility.js'></script>
</head>
<body>
<div id='pages'>
</div>
<script type='text/javascript' src='../build/pdf.js'></script>
<script type='text/javascript' src='customview.js'></script>
</body>
</html>" , fileName);
try
{
if (Device.OS != TargetPlatform.iOS)
{
html.Html = pageSource;
pdfWebView.Source = html;
}
else
{
//iOS requires this action on the main UI thread
Device.BeginInvokeOnMainThread(() =>
{
html.Html = pageSource;
pdfWebView.Source = html;
});
}
//url.Url = DependencyService.Get<IBaseUrl>().Get() + "index.html"; //?file=" + WebUtility.UrlEncode(fileName.Result);
PdfShareViewModel.FileName = fileName;
PdfShareViewModel.MimeType = "application/pdf";
pdfLoaded = true;
}
catch (Exception e)
{
UserDialogs.Instance.Alert(e.Message, AppResources.APP_TITLE, AppResources.OK);
}
}