Chapter2

jmjiru · November 19th, 2011, 07:16 PM

I am getting the error "myListView cannot be resolved or is not a field." in the chapter 2 exercise. I notice that several other people are having the same problem. I have downloaded the code zip file but that did not seem to help. I noticed that the R.java did not put the "myListView" in the id section where "myEditText" is located. I am also getting a green triangle at the "onCreate(Bundle saveInstanceState)" which shows the Class File Editor error - Source not found for the Activity.java file. I am running Eclipse Helios with JDK 6.27 and JRE 6.29. Am I missing a path or what? This is very frustrating for me.

jmjiru · November 21st, 2011, 01:16 PM

[edit] I was using Eclipse Indigo.

Here is the fix:

Code:

  <ListView android:id="@+id/myListView">
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
    </ListView>

note that the "android:id="@+id/myListView" has to be in the ListView opening tag not like EditView.

Here is the new error:
!Sorry The application ToDoList (process com.paad.todolist) has stopped unexpectedly. Please try again. <Force close>

oh well always something.

jmjiru · November 21st, 2011, 01:31 PM

same code block in the xml. Here is the fix so far that works.

Code:

    
<ListView android:id="@+id/myListView"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
    </ListView>

The actual error was that I was missing an attribute for android:layout. When I moved everything into the opening tag, the error was fixed.