forceInvalidateOnPreDraw

Force draw invalidation from pre-draw events of contributing HazeAreas.

When enabled, Haze will register a pre-draw listener and invalidate this effect node whenever the source areas are about to be drawn. This helps ensure the blur stays in sync with rapidly changing or externally-invalidated content.

Haze automatically enables this for scenarios where it knows we need it:

• The source content is drawn in a different window than this effect (e.g. Dialogs/Popups), so it's outside of this node's normal invalidation scope.

• On some older Android versions where invalidation propagation is less reliable.

However, there may be other use cases where invalidation does not work as expected, and the hazeEffect looks like it is 'stuck' or out of sync. By setting this flag to true, we use the pre-draw listener to force invalidations, and thus should fix the majority of issues.

Notes:

• Only has an effect when blurring is enabled.

• May have a performance cost due to additional invalidations from the pre-draw listener.