如何在未安装电子邮件应用程序的情况下从android应用程序发送电子邮件

Question

I have question. I've go an E-mail application but when I press the send button I must have at least one E-mail application installed. Code:

Java file:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_my);

    final EditText adress = (EditText) findViewById(R.id.adress);
    final EditText subject = (EditText) findViewById(R.id.subject);
    final EditText message = (EditText) findViewById(R.id.message);
    ImageButton send = (ImageButton) findViewById(R.id.send);

    send.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            Intent i = new Intent(Intent.ACTION_SEND);
            i.setType("message/rfc822");
            i.putExtra(Intent.EXTRA_EMAIL  , adress.getText().toString());
            i.putExtra(Intent.EXTRA_SUBJECT, subject.getText().toString());
            i.putExtra(Intent.EXTRA_TEXT   , message.getText().toString());
            try {
                startActivity(Intent.createChooser(i, "Send mail..."));
            } catch (android.content.ActivityNotFoundException ex) {
                Toast.makeText(MyActivity.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
            }

            AlertDialog.Builder builder = new AlertDialog.Builder(MyActivity.this);
                builder.setIcon(R.drawable.ic_launcher);
                builder.setTitle("Mail");
                builder.setMessage("Mail send sucessfully.");
                builder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialogInterface, int i) {
                        Toast.makeText(MyActivity.this,"Finish.",Toast.LENGTH_SHORT);
                        adress.setText("");
                        subject.setText("");
                        message.setText("");
                    }
                });
        }
    });
}

Please help me.

Answer 1

If the user does not have an email application installed on the phone, you can take the user to the PlayStore and request him to download an email app of their choice (or one that you recommend).

The other option is having your own SMTP server using which you can send emails.