ListView selection remains persistent after exiting choice mode

Question

I have a ListView subclass that I allow selections on when the context action bar (CAB) is active. The CAB is set as a callback to the onItemLongClick event:

Answer 1

I have found that the only two methods that work here (API 19) are:

• Resetting the list adapter, which is undesirable because it goes back to the top of the list;
• Setting the choice mode to CHOICE_MODE_NONE in a new Runnable

If the choice mode is changed without using listView.post(new Runnable()), it doesn't work. Can anyone explain to me why this is?

Apologies for not commenting; I have no reputation.

Thanks.