title: Android aapt Tool Not Generating R.Java Correctly
body: <p>I am new to Android development and I am trying to copy and paste this example from my book using Eclipse/DDMS and . The issue is, the aapt tool does not seem to be generating the R.java correctly. The R.java does not have a myListView and myEditText in it's ID class. </p>
  
  <p>Main.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"&gt;
    &lt;EditText
      android:id="@+id/myEditText"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:hint="@string/addItemHint"
      android:contentDescription="@string/addItemContentDescription"
    /&gt;
    &lt;ListView
      android:id="@+id/myListView"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
    /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Strings.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
    &lt;string name="app_name"&gt;ToDoList&lt;/string&gt;
    &lt;string name="addItemHint"&gt;New To Do Item&lt;/string&gt;
    &lt;string name="addItemContentDescription"&gt;New To Do z&lt;/string&gt;
  &lt;/resources&gt;
  </code></pre>
  
  <p>R.java:</p>
  
  <pre><code>/* AUTO-GENERATED FILE.  DO NOT MODIFY.
   *
   * This class was automatically generated by the
   * aapt tool from the resource data it found.  It
   * should not be modified by hand.
   */
  
  package com.example.todolist;
  
      public final class R {
          public static final class attr {
          }
          public static final class drawable {
              public static final int ic_launcher=0x7f020000;
          }
          public static final class id {
              public static final int menu_settings=0x7f070000;
  
  
          }
          public static final class layout {
              public static final int main=0x7f030000;
          }
          public static final class menu {
              public static final int main=0x7f060000;
          }
          public static final class string {
              public static final int app_name=0x7f040000;
              public static final int hello_world=0x7f040001;
              public static final int menu_settings=0x7f040002;
          }
          public static final class style {
              /** 
              Base application theme, dependent on API level. This theme is replaced
              by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
  
  
                  Theme customizations available in newer API levels can go in
                  res/values-vXX/styles.xml, while customizations related to
                  backward-compatibility can go here.
  
  
              Base application theme for API 11+. This theme completely replaces
              AppBaseTheme from res/values/styles.xml on API 11+ devices.
  
       API 11 theme customizations can go here. 
  
              Base application theme for API 14+. This theme completely replaces
              AppBaseTheme from BOTH res/values/styles.xml and
              res/values-v11/styles.xml on API 14+ devices.
  
       API 14 theme customizations can go here. 
               */
              public static final int AppBaseTheme=0x7f050000;
              /**  Application theme. 
       All customizations that are NOT specific to a particular API-level can go here. 
               */
              public static final int AppTheme=0x7f050001;
          }
      }
  </code></pre>
  
  <p>Main.java:</p>
  
  <pre><code>package com.example.todolist;
  
  import java.util.ArrayList;
  
  import android.app.Activity;
  import android.os.Bundle;
  import android.view.KeyEvent;
  import android.view.View;
  import android.widget.ArrayAdapter;
  import android.widget.EditText;
  import android.widget.ListView;
  
  public class Main extends Activity {
  
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
  
      // Inflate your View
      setContentView(R.layout.main);
  
      // Get references to UI widgets
      ListView myListView = (ListView)findViewById(R.id.myListView);
      final EditText myEditText = (EditText)findViewById(R.id.myEditText);
  
      // Create the Array List of to do items
      final ArrayList&lt;String&gt; todoItems = new ArrayList&lt;String&gt;();
  
      // Create the Array Adapter to bind the array to the List View
      final ArrayAdapter&lt;String&gt; aa;
  
      aa = new ArrayAdapter&lt;String&gt;(this,
                                    android.R.layout.simple_list_item_1,
                                    todoItems);
  
      // Bind the Array Adapter to the List View
      myListView.setAdapter(aa);
  
      myEditText.setOnKeyListener(new View.OnKeyListener() {
        public boolean onKey(View v, int keyCode, KeyEvent event) { 
          if (event.getAction() == KeyEvent.ACTION_DOWN)
            if ((keyCode == KeyEvent.KEYCODE_DPAD_CENTER) ||
                (keyCode == KeyEvent.KEYCODE_ENTER)) {
              todoItems.add(0, myEditText.getText().toString());
              aa.notifyDataSetChanged();
              myEditText.setText("");
              return true;
            }
          return false;
        }
      });
  
    }
  </code></pre>