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_SI

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