我需要从我的Andr​​oid应用程序发送电子邮件。所以，我送2个参数（电子邮件和主题）的电子邮件客户端应用程序，但是当应用程序打开的电子邮件客户端，只有受加参数和电子邮件参数没有设置。

我该如何解决这个问题？

 字符串getMail = email.toString（）;  Log.d（GET MAIL：getMail）;  字符串主题=主题;  意图emailIntent =新意图（Intent.ACTION_SEND）;  emailIntent.putExtra（Intent.EXTRA_EMAIL，getMail）;  emailIntent.putExtra（Intent.EXTRA_SUBJECT，学科）;//需要这个提示仅电子邮件客户端 emailIntent.setType（信息/ RFC822）; startActivity（Intent.createChooser（emailIntent，选择电子邮件客户端））; 

解决方案

修改 emailIntent.putExtra（Intent.EXTRA_EMAIL，getMail）;

到

  emailIntent.putExtra（Intent.EXTRA_EMAIL，新的String [] {getMail}）; 

I need to send an e-mail from my Android application. So, I send 2 parameters ( e-mail and subject) to the e-mail client app, but when app opens e-mail client, there is only subject parameter added, and email parameter is not set.

How I can fix this?

  String getMail = email.toString();
  Log.d("GET MAIL:",getMail);
  String subject = "Subject";
  Intent emailIntent = new Intent(Intent.ACTION_SEND);
  emailIntent.putExtra(Intent.EXTRA_EMAIL, getMail);
  emailIntent.putExtra(Intent.EXTRA_SUBJECT, subject);

// need this to prompts email client only                                                
 emailIntent.setType("message/rfc822");
 startActivity(Intent.createChooser(emailIntent,"Choose E-mail client:"));

Change emailIntent.putExtra(Intent.EXTRA_EMAIL, getMail);

to:

emailIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{getMail});