public async Task <MMM.FileAttachment> AddEventAttachment(string eventId, MMM.FileAttachment fileAttachment)
{
var attachment = fileAttachment.ConvertObject <Attachment>();
var item = await _graphClient.Me.Events[eventId].Attachments.Request().AddAsync(attachment);
return(attachment.ConvertObject <MMM.FileAttachment>());
}
public async void Open(FileAttachment attachment)
{
var storageFolder = ApplicationData.Current.LocalFolder;
try
{
var newFile = await storageFolder.CreateFileAsync(attachment.Name, CreationCollisionOption.ReplaceExisting);
await FileIO.WriteBytesAsync(newFile, attachment.ContentBytes);
if (!await Windows.System.Launcher.LaunchFileAsync(newFile))
{
await MessageDialog($"Couldn't start application for {attachment.Name}");
}
}
catch (Exception ex)
{
await MessageDialog($"Failure: {ex.Message}");
}
}
public async Task<FileAttachment> AddEventAttachment(string eventId, FileAttachment attachment)
{
string uri = EventsFolder + eventId + "/attachments";
return await GetHttpHelper().PostItemAsync<FileAttachment>(uri, attachment);
}
private void AttachmentDeleted(FileAttachment item)
{
var removed = _attachments.FirstOrDefault(x => x.Name == item.Name);
_attachments.Remove(removed);
OnPropertyChanged(() => HasAttachments);
}
public void Open(FileAttachment attachment)
{
var context = Forms.Context;
File file;
try
{
var dir = Android.OS.Environment
.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryDownloads);
file = new File(dir, attachment.Name);
using (var stream = new FileOutputStream(file))
{
stream.Write(attachment.ContentBytes);
}
}
catch (Exception ex)
{
var message = $"Couldn't download {attachment.Name}: {ex.Message}";
Toast.MakeText(context, message, ToastLength.Short).Show();
return;
}
var uri = Android.Net.Uri.FromFile(file);
var ext = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(uri.ToString());
var mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(ext);
var intent = new Intent(Intent.ActionView);
// Using just SetType method doesn't appear to work
if (string.IsNullOrEmpty(mimeType))
{
intent.SetDataAndType(uri, "application/*");
}
else
{
intent.SetDataAndType(uri, mimeType);
}
var available = context.PackageManager
.QueryIntentActivities(intent, Android.Content.PM.PackageInfoFlags.MatchDefaultOnly);
if (!available.Any())
{
var message = $"No apps found for {attachment.Name}";
Toast.MakeText(Forms.Context, message, ToastLength.Short).Show();
}
else
{
try
{
context.StartActivity(intent);
}
catch (Exception ex)
{
var message = $"Couldn't start activity: {ex.Message}";
Toast.MakeText(Forms.Context, message, ToastLength.Short).Show();
}
}
}
