使用Xamarin.Essentials的文件附件

Question

使用Xamarin Essentials电子邮件类，我可以这样打开默认的电子邮件应用程序

public async Task SendEmail(string subject, string body, List<string> recipients)
{
    try
    {
        var message = new EmailMessage
        {
            Subject = subject,
            Body = body,
            To = recipients,
            //Cc = ccRecipients,
            //Bcc = bccRecipients
        };
        await Email.ComposeAsync(message);
    }
    catch (FeatureNotSupportedException fbsEx)
    {
        // Email is not supported on this device
    }
    catch (Exception ex)
    {
        // Some other exception occurred
    }
}

有没有可能在代码中附加一个文件？我在api中找不到任何选项。

Answer 1

尝试以下代码：

var message = new EmailMessage
{
    Subject = "Hello",
    Body = "World",
};
var fn = "Attachment.txt";
var file = Path.Combine(FileSystem.CacheDirectory, fn);
File.WriteAllText(file, "Hello World");

message.Attachments.Add(new EmailAttachment(file));
await Email.ComposeAsync(message);