transitionBuilder property
A function that wraps a new child with an animation that transitions
the child in when the animation runs in the forward direction and out
when the animation runs in the reverse direction. This is only called
when a new child is set (not for each build), or when a new
transitionBuilder is set. If a new transitionBuilder is set, then
the transition is rebuilt for the current child and all previous children
using the new transitionBuilder. The function must not return null.
The default is AnimatedSwitcher.defaultTransitionBuilder.
The animation provided to the builder has the duration and
switchInCurve or switchOutCurve applied as provided when the
corresponding child was first provided.
See also:
- AnimatedSwitcherTransitionBuilder for more information about how a transition builder should function.
Implementation
final AnimatedSwitcherTransitionBuilder transitionBuilder;