Keyboard doesn't show when clicking into a MultiAutoCompleteTextView

Question

I am having the problem that the soft keyboard doesn't come up when clicking into the MultiAutoCompleteTextView. When I first click into another EditText and then change to the MultiAutoCompleteTextView, I can enter text but not when I click into it directly.

I don't use anything like requestFocus or onClick handlers.

Here is the XML:

<MultiAutoCompleteTextView
    android:id="@+id/thingTags"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="8dp"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginTop="0dp"
    android:hint="@string/hint_tags"
    android:inputType="textShortMessage"
    android:textIsSelectable="true" />

Answer 1

Turns out the android:textIsSelectable="true" is the culprit. If I remove that, it works again.