How to send email with attachment directly without going to external apps

Question

I have this simple code with another jar library to enable me to send email without going to other mailing apps.

 public class claimrewardemail extends Activity {

 @Override
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.successful);

    final String username = "myname@gmail.com"; 
    final String password = "mypassword"; 



    new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                Properties props = new Properties();
                props.put("mail.smtp.auth", "true");
                props.put("mail.smtp.starttls.enable", "true");
                props.put("mail.smtp.host", "smtp.gmail.com");
                props.put("mail.smtp.port", "587");

                Session session = Session.getInstance(props,
                        new javax.mail.Authenticator() {
                            protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
                                return new javax.mail.PasswordAuthentication(
                                        username, password);
                            }
                        });
                // TODO Auto-generated method stub
                Message message = new MimeMessage(session);
                message.setFrom(new InternetAddress("from-email@gmail.com"));
                message.setRecipients(Message.RecipientType.TO,
                        InternetAddress.parse("youremail@gmail.com")); 
                message.setSubject("email");
                message.setText("HI,"
                        + "\n\n great");

                Transport.send(message);
                System.out.println("Done");


            } catch (MessagingException e) {
                throw new RuntimeException(e);
            }
        }
    }).start();

  }
 }

This code above help me send mail directly with hard-coded email, title, and message,now I want to add attachment part which I can access my file in the phone and add in a button which I can send attachment along with this mail. Anyone can help me?

Answer 1

Try this:

    String filename = "example_filename";
    Multipart _multipart = new MimeMultipart();
    BodyPart messageBodyPart = new MimeBodyPart(); 
    DataSource source = new FileDataSource(filename);

    messageBodyPart.setDataHandler(new DataHandler(source)); 
    messageBodyPart.setFileName(filename); 

    _multipart.addBodyPart(messageBodyPart); 
    message.setContent(_multipart);

EDIT:

When you include aFileChooser library, you should create two buttons in your layout of the activity ("Send an email" and "Choose a file"), then in your activity:

private Button sendEmail;
private Button chooseFileButton;
private String filename;
private static final int REQUEST_CHOOSER = 1234;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    sendEmail = (Button) findViewById(R.id.send_email_button_id);
    sendEmail.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            new Thread(new Runnable() {

                @Override
                public void run() {
                    try {
                    Properties props = new Properties();
                    props.put("mail.smtp.auth", "true");
                    props.put("mail.smtp.starttls.enable", "true");
                    props.put("mail.smtp.host", "smtp.gmail.com");
                    props.put("mail.smtp.port", "587");

                    Session session = Session.getInstance(props,
                        new javax.mail.Authenticator() {
                            protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
                                return new javax.mail.PasswordAuthentication(
                                    username, password);
                        }
                    });
                    // TODO Auto-generated method stub
                    Message message = new MimeMessage(session);
                    message.setFrom(new InternetAddress("from-email@gmail.com"));
                    message.setRecipients(Message.RecipientType.TO,
                        InternetAddress.parse("youremail@gmail.com")); 
                    message.setSubject("email");
                    message.setText("HI,"
                        + "\n\n great");
                    if (!"".equals(filename)) {
                        Multipart _multipart = new MimeMultipart();
                        BodyPart messageBodyPart = new MimeBodyPart(); 
                        DataSource source = new FileDataSource(filename);

                        messageBodyPart.setDataHandler(new DataHandler(source)); 
                        messageBodyPart.setFileName(filename); 

                        _multipart.addBodyPart(messageBodyPart); 
                        message.setContent(_multipart);
                    }
                    Transport.send(message);
                    System.out.println("Done");
        } catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}).start();
        }
    });

    chooseFileButton = (Button) findViewById(R.id.choose_file_button_id);
    chooseFileButton.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
              // Create the ACTION_GET_CONTENT Intent
              Intent getContentIntent = FileUtils.createGetContentIntent();

              Intent intent = Intent.createChooser(getContentIntent, "Select a file");
              startActivityForResult(intent, REQUEST_CHOOSER);
          }
    });
}

After that add onActivityResult method, where you can get selected filename:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case REQUEST_CHOOSER:   
            if (resultCode == RESULT_OK) {

                final Uri uri = data.getData();

                // Get the File path from the Uri
                filename = FileUtils.getPath(this, uri);
            }
            break;
    }
}

Don't forget to add FileChooserActivity to your AndroidManifest.xml:

<activity
    android:name="com.ipaulpro.afilechooser.FileChooserActivity"
    android:icon="@drawable/ic_launcher"
    android:enabled="true"
    android:exported="true"
    android:label="@string/app_name" >
    <intent-filter>
        <action android:name="android.intent.action.GET_CONTENT" />

        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.OPENABLE" />

        <data android:mimeType="*/*" />
    </intent-filter>
</activity>

After that you can send an email, by click on the "Send" button;

Answer 2

yes it is possible have you add mail.jar and activation.jar files in code please search one button i think u might me know that not normal button when we click on that open new window for selection file that in your local disk and after selecting that you only need to assign that to path in code so email can send with attachment.