The original logic of preventing the multi-touch issue for the edtiable
text view was introduced by ag/10930920.
Turns out the non-editable text views are affected.
The root cause of the issue is that:
- the ACTION_DOWN/ACTION_UP events, as well as ACTION_PONITER_DOWN /
ACTION_POINTER_UP, could be generated by different fingers,
- and View#onTouchEvent() gets muted when isFromPrimePointer() == false,
- so that no gesture is generated, e.g. click, long press, etc.
Note that View#onTouchEvent() is necessary to be muted to prevent long press
on text or scrolling while dragging the insertion handle view.
Bug: 169288151
Change-Id: Ia763e94be727ad23bb13839f146293f1579d03ec
265096d9da