This signal should be emitted when the widget's visible child is changed.
@duration can be 0 if the child is switched without animation.
This is used by #HdySwipeGroup, applications should not connect to it.
1.0
See Implementation
This signal should be emitted when the widget's visible child is changed.
@duration can be 0 if the child is switched without animation.
This is used by #HdySwipeGroup, applications should not connect to it.