i have concluded triggers aren’t what i want for displaying UI elements… at least with my current understanding of them. during my testing i used a single trigger to flip between visibility states and encountered what i now call “the double-click problem”. maybe it would work with two triggers, one for opening and another for closing, but it seems illogical to me to use two animation parameters for what seems to work more reliably with a single boolean parameter.

from what i gather, triggers are better used for animations which could be starting/stopping (being triggered) anywhere during the clip… clips which are intended, or rather expected, to be either interrupted or refire at will.

for situations where you don’t want the animation to be interrupted, booleans seem better suited.