android - 发送电子邮件时出现错误“没有应用程序可以执行此操作”

这是代码，除了没有应用程序可以执行此操作“error..请告诉我代码中的错误是什么。

 public void sends(View button) {
        // Do click handling here


        final EditText date = (EditText) findViewById(R.id.editText1);
        String da = date.getText().toString();

        final EditText phone = (EditText) findViewById(R.id.editText2);
        String ph = phone.getText().toString();

        final EditText nameplate = (EditText) findViewById(R.id.editText3);
        String np = nameplate.getText().toString();

        final EditText issue = (EditText) findViewById(R.id.editText4);
        String i = issue.getText().toString();

        StringBuilder s= new StringBuilder(100);
        s.append(da);
        s.append(". ");
        s.append(ph);
        s.append(". ");
        s.append(np);
        s.append(". ");
        s.append(i);

        String st=s.toString();




        Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
        //emailIntent.setType("plain/text");
        //startActivity(emailIntent);
        startActivity(Intent.createChooser(emailIntent, "Send your email in:"));

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

        String aEmailList[] = { "[email protected]" };


        emailIntentt.putExtra(android.content.Intent.EXTRA_EMAIL, aEmailList);
        //emailIntentt.putExtra(android.content.Intent.EXTRA_CC, aEmailCCList);
        //emailIntentt.putExtra(android.content.Intent.EXTRA_BCC, aEmailBCCList);

        emailIntentt.putExtra(android.content.Intent.EXTRA_SUBJECT, "Feedback");

        emailIntentt.setType("message/rfc822");
        emailIntentt.putExtra(android.content.Intent.EXTRA_TEXT, st);




        startActivityForResult(emailIntentt, REQUEST_SEND_MAIL);
    }
    public static final int REQUEST_SEND_MAIL = 1;

    public void onActivityResult(int requestCode, int resultCode, Intent data) {



        switch (requestCode) {
        case REQUEST_SEND_MAIL:
            // When the request to send mail returns
            if (resultCode == Activity.RESULT_OK) {
                Toast.makeText(this, "message successfully sent", Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(this, "sorry", Toast.LENGTH_SHORT).show();
            }

            }}

最佳答案

你有startActivity()和startActivityForResult！！！！你需要一个。这就是为什么第一个意图被激发，而没有应用程序来捕捉它。
试试这个：

Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
String aEmailList[] = { "[email protected]" };

emailIntent.setType("plain/text");
emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, aEmailList);
emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Feedback");
emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, st);

startActivityForResult(emailIntent, REQUEST_SEND_MAIL);

关于android - 发送电子邮件时出现错误“没有应用程序可以执行此操作”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11703114/