Android App Development - Send email directly with no Intents

Question

Can anyone suggest how I can send an email without using intents or opening another android app. I want the email to be sent directly once I hit the send button. I must use a specific office365 email for sending message. Should I use some API or SMTP etc.?

Is there a simple way on how I can apply this feature on my android app?

Solution 1

Go through this below link. This is the example what you exactly want http://www.edumobile.org/android/send-email-on-button-click-without-email-chooser/

Solution 2

Hell @APX, Here is the tow class which help you to send email with single or multiple user without any library, I think this will help you,

import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.Security;
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 JSSEProvider());
    }

    public MailSender(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 from, String recipients) throws Exception {
        try {
            MimeMessage message = new MimeMessage(session);
            DataHandler handler = new DataHandler(new ByteArrayDataSource(body.getBytes(), "text/html"));
            /*message.setSender(new InternetAddress(sender, "Dhaval Solanki"));*/
            message.setFrom(new InternetAddress(sender, from));
            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);
        } catch (Exception e) {

        }
    }

    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");
        }
    }
}





*  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @author Alexander Y. Kleymenov
 * @version $Revision$
 */


import java.security.AccessController;
import java.security.Provider;

public final class JSSEProvider extends Provider {

    public JSSEProvider() {
        super("HarmonyJSSE", 1.0, "Harmony JSSE Provider");
        AccessController.doPrivileged(new java.security.PrivilegedAction<Void>() {
            public Void run() {
                put("SSLContext.TLS",
                        "org.apache.harmony.xnet.provider.jsse.SSLContextImpl");
                put("Alg.Alias.SSLContext.TLSv1", "TLS");
                put("KeyManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.KeyManagerFactoryImpl");
                put("TrustManagerFactory.X509",
                        "org.apache.harmony.xnet.provider.jsse.TrustManagerFactoryImpl");
                return null;
            }
        });
    }
}

You can use like following

MailSender sender = new MailSender("" + authEmail, "" + authPwd);
                    sender.sendMail("" + subject,
                            "" + prepareMailText(name),
                            "" + authEmail, "WeMeal Team",
                            "" + emailList); //email list send comma separated string like ("[email protected],[email protected]")

Comments

[APX]

id rather to use office365 emails to send messages. is it possible? what params in this code that i must to change. some ports or hosts etc. thanks!

[Dhaval Solanki]

Hi, try with Office 365 then it will not work then put following line in class constructor : props.put("mail.smtp.host", "m.outlook.com"); Following link will help you stackoverflow.com/questions/14430962/…

[APX]

Okay thanks. one more, how did you declare your " emailId[0] " ? ty

[Dhaval Solanki]

I have declared with string array you can pass here Email directly no need to define same as me, And if answer is helpful then please vote up and accept it,

[Dhaval Solanki]

Hello, here no need to declare array object only pass string like "[email protected],[email protected],[email protected]" pass as argument or for more please check my answer was updated

[APX]

sender.sendMail("" + subject, "" + prepareMailText(name), "" + authEmail, "WeMeal Team", "[email protected],[email protected],[email protected]"); Still gets an error. unhandled exception: java.lang.exception

[Dhaval Solanki]

Can you post full logo of exception here.

[APX]

Error:(141, 24) error: unreported exception Exception; must be caught or declared to be thrown sender.sendMail("" + editTextLR, ^ 1 error Incremental compilation of 17 classes completed in 9.922 secs. :app:compileDebugJavaWithJavac FAILED

[APX]

FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:compileDebugJavaWithJavac'. > Compilation failed; see the compiler error output for details. * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

[APX]

its not working on me. my application stopped. i change all the "[email protected]" emails and passwords into my own account. halp pls

[user3451660]

@APX did you manage to fix it ? I have been struggling with the same problem on my app when I use my own gmail address and password. I also enabled that access to less secure devices setting in gmail.