인 텐트를 사용하여 이메일 애플리케이션을 여는 방법

안녕하세요 Android 개발이 처음이며 문제가 발생했습니다. 나는 http://www.youtube.com/watch?v=Sqk154QSe8Y#t=158 (뉴 보스턴) 에서이 튜토리얼 비디오를 뭐라고하는데, 내가 똑같은 정확한 코드를 가지고 있다고 말할 수있는 한 어떤 이유에서인지 코드는 버튼 탭과 Intent 호출에서 이메일 앱을 열지 않습니다.

Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, emailaddress);
emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "I hate you");
emailIntent.setType("plain/type");
emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, message);

텍스트 색상을 변경할 수 있지만 이메일 의도가 열리지 않기 때문에 버튼이 작동합니다.

내가 뭔가 잘못하고 있습니까 ??

이것은 완전한 코드입니다 ---

com.infitenothing.word 패키지;

import com.infitenothing.dogcat.R;

import android.R.anim;
import android.R.layout;
import android.app.Activity;
import android.content.Intent;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.os.Bundle;
import android.text.Layout;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Email extends Activity implements View.OnClickListener {

EditText personsEmail, intro, personsName, stupidThings, hatefulAction,
        outro;
String emailAdd, beginning, name, stupidAction, hatefulAct, out;
Button sendEmail;
TextView color;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.email);
    initializeVars();
    sendEmail.setOnClickListener(this);
}

private void initializeVars() {
    // TODO Auto-generated method stub
    personsEmail = (EditText) findViewById(R.id.etEmails);
    intro = (EditText) findViewById(R.id.etIntro);
    personsName = (EditText) findViewById(R.id.etName);
    stupidThings = (EditText) findViewById(R.id.etThings);
    hatefulAction = (EditText) findViewById(R.id.etAction);
    outro = (EditText) findViewById(R.id.etOutro);
    sendEmail = (Button) findViewById(R.id.bSentEmail);
    color = (TextView) findViewById(R.id.colors);
}

public void onClick(View v) {
    // TODO Auto-generated method stub
    color.setTextColor(Color.RED);
    convertEditTextVarsIntoStringsAndYesThisIsAMethodWeCreated();
    String emailaddress[] = { emailAdd };
    String message = "Well hello "
            + name
            + " I just wanted to say "
            + beginning
            + ".  Not only that but I hate when you "
            + stupidAction
            + ", that just really makes me crazy.  I just want to make you "
            + hatefulAct
            + ".  Welp, thats all I wanted to chit-chatter about, oh and"
            + out
            + ".  Oh also if you get bored you should check out www.mybringback.com"
            + '\n' + "PS. I think I love you...   :(";
    final Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
    //Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
    emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, emailaddress);
    emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "I hate you");
    emailIntent.setType("plain/type");
    emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, message);
}

private void convertEditTextVarsIntoStringsAndYesThisIsAMethodWeCreated() {
    // TODO Auto-generated method stub
    emailAdd = personsEmail.getText().toString();
    beginning = intro.getText().toString();
    name = personsName.getText().toString();
    stupidAction = stupidThings.getText().toString();
    hatefulAct = hatefulAction.getText().toString();
    out = outro.getText().toString();
}

@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    finish();
}

}