Question

So, starting with Android and Java, and I have this baffling error: The application fails with a stopped unexpectedly message when reaches a findViewByID(R.id.answer) but only if I add another one to the code.

The code is as below:

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical" android:layout_width="match_parent"
            android:layout_height="match_parent">
  <LinearLayout android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:text="@string/site" />
    <EditText android:id="@+id/site" 
             android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_weight="1"/>
  </LinearLayout>
  <!-- 
  <LinearLayout android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:text="@string/username" />
    <EditText android:id="@+id/username" 
      android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_weight="1"/>
  </LinearLayout>
   -->
  <LinearLayout android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:text="@string/password" />
    <EditText android:id="@+id/password" 
      android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_weight="1"/>
  </LinearLayout>
  <LinearLayout android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:text="@string/question" />
    <EditText android:id="@+id/question" 
      android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_weight="1"/>
  </LinearLayout>
  <LinearLayout android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:text="@string/answer" />
    <EditText android:id="@+id/answer" 
      android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_weight="1"/>
  </LinearLayout>
  <Button android:id="@+id/confirm" 
          android:text="@string/confirm"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
</LinearLayout>

OnCreate method

 super.onCreate(savedInstanceState);
 setContentView(R.layout.keyedit);
 setTitle(R.string.edit_entry);
 mDbHelper = new KeyRingDbAdapter(this);
 mDbHelper.open();
 mSiteText = (EditText) findViewById(R.id.site);
 //mUsernameText = (EditText) findViewById(R.id.username);
 mPasswordText = (EditText) findViewById(R.id.password);
 mQuestionText = (EditText) findViewById(R.id.question);
 mAnswerText = (EditText) findViewById(R.id.answer);

So, the above works and the line mAnswerText = (EditText) findViewById(R.id.answer); assigns the right object to mAnswerText. Once I uncomment the code, that same line, that has worked before, fails. When I see the xml on the graphical layout, all appears correctly. The R file seems to be ok (I deleted it and go it regenerated, just in case).

Any ideas? Any more info needed?

EDIT: Well, awkward. Last night I got home and, when I uncommented the lines, this time it worked. I am experienced enough as programmer and I did enough checking to know that it wasn’t me just uncommenting part or doing something else entirely stupid. Though it could have been something related to the fact that I am new to Eclipse as well. Not cool, as right now the error has been fixed “magically” and I am not the wiser.

Answer 1

I faced the same issue today. In a RelativeLayout I reordered the layout xml file – and got this error.

I cleaned the project (Eclipse: Project / Clean) et voilà it worked again.

Eclipse help: “Clean – This command discards all previous build results. If autobuild is on, then this invokes a full build.”