My checkbox does not appear in my CheckedTextView

Question

Here is how I setup my checked text view. How come no check box appeared?

I also added this but it had not effect: listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

 <CheckedTextView  android:id="@+id/ctv_checktext"  android:layout_width="fill_parent"  android:paddingLeft="2px"  android:paddingRight="2px"  android:paddingTop="2px"  android:layout_height="wrap_content"  /> 

Answer 1

(I'm answering my own question because it's undocumented in the Android API)

This is not enough:

listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE); 

You need to include the android:checkMark="?android:attr/listChoiceIndicatorMultiple" or else

 <CheckedTextView  android:id="@+id/ctv_checktext"  android:layout_width="fill_parent"  android:paddingLeft="2px"  android:paddingRight="2px"  android:paddingTop="2px"  android:layout_height="wrap_content"  android:checkMark="?android:attr/listChoiceIndicatorMultiple"  />