如何在我的应用程序中将资产中的pdf文件附加到电子邮件中？我使用以下代码附加图像，但我不知道如何附加PDF。
EMail.java文件
package com.drc.email;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class Email extends Activity {
Button send,attach;
EditText userid,password,from,to,subject,body;
private static final int SELECT_PICTURE = 1;
private String selectedImagePath=null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
send = (Button) this.findViewById(R.id.btnsend);
attach = (Button) this.findViewById(R.id.btnattach);
userid = (EditText) this.findViewById(R.id.userid);
password = (EditText) this.findViewById(R.id.password);
from = (EditText) this.findViewById(R.id.from);
to = (EditText) this.findViewById(R.id.to);
subject = (EditText) this.findViewById(R.id.subject);
body = (EditText) this.findViewById(R.id.body);
attach.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
// select a file
selectedImagePath=null;
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);
}
});
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
MailSender sender = new MailSender(userid.getText().toString(), password.getText().toString());
try {
if(selectedImagePath==null)
{
sender.sendMail(subject.getText().toString(), body.getText().toString(), from.getText().toString(),to.getText().toString());
Toast.makeText(getBaseContext(), "Send Mail Sucess", Toast.LENGTH_LONG).show();
}
else
{
sender.sendMailAttach(subject.getText().toString(), body.getText().toString(), from.getText().toString(),to.getText().toString(),selectedImagePath.toString(),String.format("image%d.jpeg", System.currentTimeMillis()));
Toast.makeText(getBaseContext(), "Send Attach Mail Sucess", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Log.e("SendMail", e.getMessage(), e);
}
sender=null;
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == SELECT_PICTURE) {
Uri selectedImageUri = data.getData();
selectedImagePath = getPath(selectedImageUri);
//disimage.setImageURI(Uri.parse(selectedImagePath));
}
}
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
// Toast.makeText(this,cursor.getString(column_index).toString(), Toast.LENGTH_LONG);
return cursor.getString(column_index);
}
}
MailSender.java文件
package com.drc.email;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
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;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Properties;
public class MailSender 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 MailSender(String user, String password) {
this.user = user;
this.password = password;
System.out.println("Hello");
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 {
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);
}
public synchronized void sendMailAttach(String subject, String body,String sender, String recipients, String selectedImagePath,String filename) throws Exception {
MimeMessage message = new MimeMessage(session);
message.setSender(new InternetAddress(sender));
message.setSubject(subject);
// Set the email message text.
//
MimeBodyPart messagePart = new MimeBodyPart();
messagePart.setText(body);
//
// Set the email attachment file
//
MimeBodyPart attachmentPart = new MimeBodyPart();
FileDataSource fileDataSource = new FileDataSource(selectedImagePath) {
@Override
public String getContentType() {
return "application/octet-stream";
}
};
attachmentPart.setDataHandler(new DataHandler(fileDataSource));
attachmentPart.setFileName(filename);
Multipart multipart = new MimeMultipart();
multipart.addBodyPart(messagePart);
multipart.addBodyPart(attachmentPart);
message.setContent(multipart);
if (recipients.indexOf(',') > 0)
{message.setRecipients(Message.RecipientType.TO, InternetAddress.parse(recipients));}
else
{message.setRecipient(Message.RecipientType.TO, new InternetAddress(recipients));}
Transport.send(message);
}
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");
}
}
}
我正在使用3个外部jar文件。
答案 0 :(得分：2)
您应该使用URI来引用资产目录中的PDF文件myfile.pdf：
Uri uri=Uri.parse("file:///android_asset/myfile.pdf");
答案 1 :(得分：0)
i've done for send any file from SD card with mail attachment..
Intent sendEmail= new Intent(Intent.ACTION_SEND);
sendEmail.setType("rar/image");
sendEmail.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new
File("/mnt/sdcard/download/abc.rar")));
startActivity(Intent.createChooser(sendEmail, "Email:"));