如何在安卓系统中向多个收件人发送电子邮件?[英] How to send email to multiple recepients in android?

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问题描述

我是Android的新手.请帮我.我无法向多个收件人发送电子邮件. 这是我的代码.

public class SendEmailActivity extends Activity{

EditText subject_ed,message_ed;
TextView subject_tv,message_tv;
Button send_btn;

 ArrayList<String> emailList;
 ArrayList<Integer> idList;
 int eventId;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.contacts_email_sms_layout);
    setupViews();
    Intent intent = getIntent();
    Bundle b = intent.getExtras();
    eventId =  b.getInt("EventId");//event id
    idList = b.getIntegerArrayList("IdList");//list of Ids
    emailList = b.getStringArrayList("EmailList");//list of email ids
    buttonListeners();
}

public void setupViews()
{
    subject_ed = (EditText)findViewById(R.id.ed_subject_email);
    message_ed = (EditText)findViewById(R.id.ed_msg_body);
    subject_tv = (TextView)findViewById(R.id.tv_subject_email);
    message_tv = (TextView)findViewById(R.id.tv_msg_body);
    send_btn = (Button)findViewById(R.id.btn_send_sms_email);
}               

public void buttonListeners()
{
    send_btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Email sent",Toast.LENGTH_LONG).show();
            // String to = textTo.getText().toString();
              String subject = subject_ed.getText().toString();
              String message = message_ed.getText().toString();
            Object[] to =  emailList.toArray();
//            for(int i = 0; i<=emailList.size(); i++)
////                  {
////                      
//                  String  to=   emailList.get(0);
////                     
////                  }



              Intent email = new Intent(Intent.ACTION_SEND);
              for(int i = 0; i < to.length; i++)
                {
                    Log.i("String is", (String)to[i]);
                    //String[] str = (String[])to[i];
                     email.putExtra(Intent.EXTRA_EMAIL,",'" +(String)to[i] + "'");
                }

              email.putExtra(Intent.EXTRA_SUBJECT, subject);
              email.putExtra(Intent.EXTRA_TEXT, message);

              //need this to prompts email client only
              email.setType("message/rfc822");

              startActivity(Intent.createChooser(email, "Choose an Email client :"));
             // finish();
        }
    });
}

}

推荐答案

首先将您的转换从列表到String []是错误的,您需要按如下方式..

List<String> list = new ArrayList<String>();
String[] arrayOfStrings = list.toArray(new String[list.size()]);

和下一件事是您需要提到android.Content.intent如下..

所以最后你需要改变如下

ArrayList<String> emailList;
emailList = b.getStringArrayList("EmailList");
String[] emailArray;

Intent email = new Intent(android.content.Intent.ACTION_SEND);

for(int i = 0; i < to.length; i++){
    Log.i("String is", (String)to[i]);
    email.putExtra(android.content.Intent.EXTRA_EMAIL, 
                   emailList.toArray(new String[emailList.size()]));
}
email.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
email.putExtra(android.content.Intent.EXTRA_TEXT, message);    
email.setType("message/rfc822"); //or email.setType("text/plain");

startActivity(Intent.createChooser(email, "Choose an Email client :"));

其他推荐答案

请勿使用

public Intent putExtra (String name, String value)

设置电子邮件收件人时,还有另一个方法接受一个字符串数组,必须用于电子邮件

public Intent putExtra (String name, String[] value)

所以你的块

for(int i = 0; i < to.length; i++)
{
    Log.i("String is", (String)to[i]);
    //String[] str = (String[])to[i];
    email.putExtra(Intent.EXTRA_EMAIL,",'" +(String)to[i] + "'");
}

只是变成

email.putExtra(Intent.EXTRA_EMAIL, to);

有关使用 Intents 特别是 aftor_email 参数,它期望字符串数组,而不是单个字符串.

其他推荐答案

如果我是你,我会把它放在一个不同的线程中,以便在活动线程(或ui线程)上没有任何进程.这是一个很好的 Android教程如何执行此操作.在Android中了解线程非常重要.如果你有时间,我会看这个手段教程.

button.Onclick(){
  // get all the messages information
  // the button to send the emails has been collected
  new SendEmailTask().execute(messages)
}
然后在您的异步任务中,您可以发送所有消息

SendEmailTask extends AsyncTask<Message,Void,Void>(){

  function doInBackground(Message... msgs){
    for(Message m : msgs){
     // process each of your messages
     // send the messages out
    }
  }
  function onPostExecute(){
    // tell the UI thread that you are finished
  }

}

祝你好运!

本文地址:https://www.itbaoku.cn/post/102595.html

问题描述

I'm a newbie in android. Please help me. I'm not able to send email to multiple recipients. Here is my code.

public class SendEmailActivity extends Activity{

EditText subject_ed,message_ed;
TextView subject_tv,message_tv;
Button send_btn;

 ArrayList<String> emailList;
 ArrayList<Integer> idList;
 int eventId;
@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.contacts_email_sms_layout);
    setupViews();
    Intent intent = getIntent();
    Bundle b = intent.getExtras();
    eventId =  b.getInt("EventId");//event id
    idList = b.getIntegerArrayList("IdList");//list of Ids
    emailList = b.getStringArrayList("EmailList");//list of email ids
    buttonListeners();
}

public void setupViews()
{
    subject_ed = (EditText)findViewById(R.id.ed_subject_email);
    message_ed = (EditText)findViewById(R.id.ed_msg_body);
    subject_tv = (TextView)findViewById(R.id.tv_subject_email);
    message_tv = (TextView)findViewById(R.id.tv_msg_body);
    send_btn = (Button)findViewById(R.id.btn_send_sms_email);
}               

public void buttonListeners()
{
    send_btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            Toast.makeText(getApplicationContext(), "Email sent",Toast.LENGTH_LONG).show();
            // String to = textTo.getText().toString();
              String subject = subject_ed.getText().toString();
              String message = message_ed.getText().toString();
            Object[] to =  emailList.toArray();
//            for(int i = 0; i<=emailList.size(); i++)
////                  {
////                      
//                  String  to=   emailList.get(0);
////                     
////                  }



              Intent email = new Intent(Intent.ACTION_SEND);
              for(int i = 0; i < to.length; i++)
                {
                    Log.i("String is", (String)to[i]);
                    //String[] str = (String[])to[i];
                     email.putExtra(Intent.EXTRA_EMAIL,",'" +(String)to[i] + "'");
                }

              email.putExtra(Intent.EXTRA_SUBJECT, subject);
              email.putExtra(Intent.EXTRA_TEXT, message);

              //need this to prompts email client only
              email.setType("message/rfc822");

              startActivity(Intent.createChooser(email, "Choose an Email client :"));
             // finish();
        }
    });
}

}

推荐答案

First your conversion from List to String[] is wrong you need to do as follows..

List<String> list = new ArrayList<String>();
String[] arrayOfStrings = list.toArray(new String[list.size()]);

And next thing is you need to mention android.Content.Intent as follows..

So finally you need to change as follows

ArrayList<String> emailList;
emailList = b.getStringArrayList("EmailList");
String[] emailArray;

Intent email = new Intent(android.content.Intent.ACTION_SEND);

for(int i = 0; i < to.length; i++){
    Log.i("String is", (String)to[i]);
    email.putExtra(android.content.Intent.EXTRA_EMAIL, 
                   emailList.toArray(new String[emailList.size()]));
}
email.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
email.putExtra(android.content.Intent.EXTRA_TEXT, message);    
email.setType("message/rfc822"); //or email.setType("text/plain");

startActivity(Intent.createChooser(email, "Choose an Email client :"));

其他推荐答案

Do not use

public Intent putExtra (String name, String value)

When setting email recipients, instead there is another method which accepts a string array which must be used for emails

public Intent putExtra (String name, String[] value)

So your block

for(int i = 0; i < to.length; i++)
{
    Log.i("String is", (String)to[i]);
    //String[] str = (String[])to[i];
    email.putExtra(Intent.EXTRA_EMAIL,",'" +(String)to[i] + "'");
}

Would simply become

email.putExtra(Intent.EXTRA_EMAIL, to);

See the android developer reference for more details on using Intents specifically the EXTRA_EMAIL argument which expects a string array, not a single string.

其他推荐答案

If I were you I would put this on a different thread so that you don't have any process on the Activity thread (or UI thread). This is a good android tutorial on how to do this. Threading is really important to understand in Android. If you have time I would watch this threading tutorial as well.

button.Onclick(){
  // get all the messages information
  // the button to send the emails has been collected
  new SendEmailTask().execute(messages)
}

Then in your Async Task you can send all of the messages

SendEmailTask extends AsyncTask<Message,Void,Void>(){

  function doInBackground(Message... msgs){
    for(Message m : msgs){
     // process each of your messages
     // send the messages out
    }
  }
  function onPostExecute(){
    // tell the UI thread that you are finished
  }

}

Good Luck!

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