File browsing and attachment problem

[Hardik Trivedi]

Hi all genius people,

I am new to android and wanted to send an email with the photos as an attachment.I am able to send the simple text mail.But I am not able to attach the file. Not even by java code.

 package com.example;  
   
 import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

    
  public class GMailSender extends javax.mail.Authenticator {  
      private String mailhost = "smtp.gmail.com";  
      private String user;  
      private String password;  
      private Session session;  
    
      //static {  
      //  Security.addProvider(new org.apache.harmony.xnet.provider.jsse.JSSEProvider());  
     //}  
    
      public GMailSender(String user, String password) {  
          this.user = user;  
          this.password = password;  
    
          Properties props = new Properties();  
          props.setProperty("mail.transport.protocol", "smtp");  
          props.setProperty("mail.host", mailhost);  
          props.put("mail.smtp.auth", "true");  
          props.put("mail.smtp.port", "465");  
          props.put("mail.smtp.socketFactory.port", "465");  
          props.put("mail.smtp.socketFactory.class",  
                  "javax.net.ssl.SSLSocketFactory");  
          props.put("mail.smtp.socketFactory.fallback", "false");  
          props.setProperty("mail.smtp.quitwait", "false");  
    
          session = Session.getDefaultInstance(props, this);  
      }  
    
      protected PasswordAuthentication getPasswordAuthentication() {  
          return new PasswordAuthentication(user, password);  
      }  
    
      public synchronized void sendMail(String subject, String body, String sender, String recipients) throws Exception 
      {  
    	  Message msg=new MimeMessage(session);
    	  msg.setFrom(new InternetAddress(sender));
    	  msg.addRecipient(Message.RecipientType.TO, new InternetAddress(recipients));
    	  msg.setSubject("Attachment Test");
    	  
    	  BodyPart msgBodyPart1=new MimeBodyPart();
    	  BodyPart msgBodyPart2=new MimeBodyPart();
    	  Multipart multipart=new MimeMultipart();
    	  multipart.addBodyPart(msgBodyPart1);
    	  DataSource ds=new FileDataSource("D://attachment.txt");
    	  msgBodyPart2.setDataHandler(new DataHandler(ds));
    	  multipart.addBodyPart(msgBodyPart2);
    	  msg.setContent(multipart);
    	  Transport.send(msg);
    	  
      }  
    
      public class ByteArrayDataSource implements DataSource {  
          private byte[] data;  
          private String type;  
    
          public ByteArrayDataSource(byte[] data, String type) {  
              super();  
              this.data = data;  
              this.type = type;  
          }  
    
          public ByteArrayDataSource(byte[] data) {  
              super();  
              this.data = data;  
          }  
    
          public void setType(String type) {  
              this.type = type;  
          }  
    
          public String getContentType() {  
              if (type == null)  
                  return "application/octet-stream";  
              else  
                  return type;  
          }  
    
          public InputStream getInputStream() throws IOException {  
              return new ByteArrayInputStream(data);  
          }  
    
          public String getName() {  
              return "ByteArrayDataSource";  
          }  
    
          public OutputStream getOutputStream() throws IOException {  
              throw new IOException("Not Supported");  
          }  
      }  
  }   

Above code I have written based on some tutorial.
But what I need is to make the application which allows the user to browse the file from android device and also allows him to send it as an email.

Is there any example which is given in android SDK package?

Please guide me.

[Lester Burnham]

http://developer.android.com/guide/topics/data/data-storage.html explains how to access files in both the internal and external (SD card) storage.

[Hardik Trivedi]

Lester Burnham wrote:

Thank you for reply.
I read that page. But I think you get me wrong.Imagine a gmail mail sending application.I need to design a mail sending application with user interaction and with the attachment facility as well.

The link which you have given me I do not think it will be useful for this purpose.

Correct me if I am wrong.

Thank you one again.

[Lester Burnham]

What, exactly, are you looking for then? You asked about accessing files, which that page talks about. If the user is supposed to browse the files, then, yes - you need to write a GUI for that. Are you asking how to do that? If so, what do you have so far, and where, exactly, are you stuck making progress?

Also, you're aware that JavaMail does not work put of the box on Android, right? See the AndroidFaq for workarounds.

[Hardik Trivedi]

Lester Burnham wrote:
Also, you're aware that JavaMail does not work put of the box on Android, right? See the AndroidFaq for workarounds.

Now you get me right.yes I have a gui format ready.And I think javamail works for that.

public synchronized void sendMail(String subject, String body, String sender, String recipients) throws Exception 
      {  
    	   MimeMessage message = new MimeMessage(session);  
    	   DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/plain"));  
    	   message.setSender(new InternetAddress(sender));  
    	   message.setSubject(subject);  
    	   message.setDataHandler(handler);  
    	   if (recipients.indexOf(',') > 0)  
    	       message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));  
    	   else  
    		   message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));  
    	  Transport.send(message);  
       }

Above method successfully send the text email after passing valid gmail account detail.
And to display the box there is different code that i know,what I want to know is how to open "open dialog box",save dialog box etc..

[Lester Burnham]

Portable devices don't tend to do much with files -at least not with the user being made aware of it- so Android has no such GUI components. You'll have to create those yourself if you don't find any examples somewhere out on the web.