How to behave during hit tests.
- deferToChild → HitTestBehavior
Targets that defer to their children receive events within their bounds only if one of their children is hit by the hit test.
- opaque → HitTestBehavior
Opaque targets can be hit by hit tests, causing them to both receive events within their bounds and prevent targets visually behind them from also receiving events.
- translucent → HitTestBehavior
Translucent targets both receive events within their bounds and permit targets visually behind them to also receive events.
- values → List<HitTestBehavior>
A constant List of the values in this enum, in order of their declaration.