If you return true
from an ACTION_DOWN
event you are interested in the rest of the events in that gesture. A “gesture” in this case means all events until the final ACTION_UP
or ACTION_CANCEL
. Returning false
from an ACTION_DOWN
means you do not want the event and other views will have the opportunity to handle it. If you have overlapping views this can be a sibling view. If not it will bubble up to the parent.