使用依赖服务 DROID Xamarin 表单发送电子邮件 + 附件

Question

我在尝试发送带附件的电子邮件时遇到了这个错误。有帮助吗？谢谢

**** 从 Activity 上下文外部调用 startActivity() 需要 FLAG_ACTIVITY_NEW_TASK 标志。这真的是你想要的吗？****

这是我的代码：

[assembly: Dependency(typeof(sendEmail))]
namespace myapp.Droid
{
    public class sendEmail : IEmailTask
    {
        public sendEmail()
        {

        }

        public void SendEmail () 
        {
            var sqlliteFilname = "test.3gpp";
            string documentsPath = System.Environment.GetFolderPath(
            Environment.SpecialFolder.Personal);
            var stringPath = Path.Combine(documentsPath, sqlliteFilname);

            var path = Android.Net.Uri.FromFile(new 
           Java.IO.File(stringPath));

            Intent emailIntent = new Intent(Intent.ActionSend);
            // set the type to 'email'
            emailIntent.SetData(Android.Net.Uri.Parse("mailto:"));

            String[] to = { "youremail@mail.com" };

            emailIntent.PutExtra(Intent.ExtraEmail, to);
            // the attachment
            emailIntent.PutExtra(Intent.ExtraStream, path);
            // the mail subject
            emailIntent.PutExtra(Intent.ExtraSubject, "Subject");

           Android.App.Application.Context.StartActivity(Intent.CreateChooser(emailIntent, "Send email..."));


        }
    }
}

页面上的代码是：

 void btnSendingHandle_Clicked(object sender, System.EventArgs e)
        {
            var getEmail = DependencyService.Get<IEmailTask>();

            getEmail.SendEmail();
        }

Answer 1

就像尼克说的

您可以使用 Forms.Context 来启动 activity。

或者

您可以在 emailIntent.

emailIntent.SetFlags(ActivityFlags.NewTask);

In Android, every Activity should have its own task stack which you can use taskAffinity to define it, the package's name is the default value. But if you use Application.Context to start activity, there is not task stack for your activity, so it suggests you to use FLAG_ACTIVITY_NEW_TASK flag, this flag will create a task stack for you activity.

Answer 2

检查您是否有要发送的附件。 *要替换 if 块并更改此

Intent emailIntent = new Intent(Intent.ActionSend);
//change it to 


Intent emailIntent = new Intent(Intent.ActionSendto);

Android.App.Application.Context.StartActivity(Intent.CreateChooser(emailIntent, "Send email..."));

if (emailIntent.ResolveActivity(Android.App.Application.Context.PackageManager) != null)
            {
                Android.App.Application.Context.StartActivity(emailIntent);
            }
            else
            {

                    string tag = "MY-EMAIL";
                    Log.Info(tag, "no attachment found");
            }

我的问题取决于附件本身。

使用依赖服务 DROID Xamarin 表单发送电子邮件 + 附件

Send an email +attachment using dependency services DROID Xamarin forms

android

forms

xamarin

dependencies

email-attachments