static async Task ComposeWithUrl(EmailMessage message)
{
var url = GetMailToUri(message);
var nsurl = NSUrl.FromString(url);
await Launcher.PlatformOpenAsync(nsurl);
}
static Intent CreateIntent(EmailMessage message)
{
var action = (message?.Attachments?.Count ?? 0) switch
{
0 => Intent.ActionSendto,
1 => Intent.ActionSend,
_ => Intent.ActionSendMultiple
};
var intent = new Intent(action);
if (action == Intent.ActionSendto)
{
intent.SetData(Uri.Parse("mailto:"));
}
else
{
intent.SetType(FileSystem.MimeTypes.EmailMessage);
}
if (!string.IsNullOrEmpty(message?.Body))
{
if (message.BodyFormat == EmailBodyFormat.Html)
{
ISpanned html;
#if __ANDROID_24__
if (Platform.HasApiLevelN)
{
html = Html.FromHtml(message.Body, FromHtmlOptions.ModeLegacy);
}
else
#endif
{
#pragma warning disable CS0618 // Type or member is obsolete
html = Html.FromHtml(message.Body);
#pragma warning restore CS0618 // Type or member is obsolete
}
intent.PutExtra(Intent.ExtraText, html);
}
else
{
intent.PutExtra(Intent.ExtraText, message.Body);
}
}
if (!string.IsNullOrEmpty(message?.Subject))
{
intent.PutExtra(Intent.ExtraSubject, message.Subject);
}
if (message?.To?.Count > 0)
{
intent.PutExtra(Intent.ExtraEmail, message.To.ToArray());
}
if (message?.Cc?.Count > 0)
{
intent.PutExtra(Intent.ExtraCc, message.Cc.ToArray());
}
if (message?.Bcc?.Count > 0)
{
intent.PutExtra(Intent.ExtraBcc, message.Bcc.ToArray());
}
if (message?.Attachments?.Count > 0)
{
var uris = new List <IParcelable>();
foreach (var attachment in message.Attachments)
{
uris.Add(Platform.GetShareableFileUri(attachment));
}
if (uris.Count > 1)
{
intent.PutParcelableArrayListExtra(Intent.ExtraStream, uris);
}
else
{
intent.PutExtra(Intent.ExtraStream, uris[0]);
}
intent.AddFlags(ActivityFlags.GrantReadUriPermission);
}
return(intent);
}
}
static Task PlatformComposeAsync(EmailMessage message) => throw ExceptionUtils.NotSupportedOrImplementedException;