previousPage method

Future<void> previousPage({
  1. required Duration duration,
  2. required Curve curve,
})

上一页

Implementation

Future<void> previousPage({
  required Duration duration,
  required Curve curve,
}) {
  return animateToPage(
    _state._index == 0 ? _state.widget.childCount - 1 : _state._index - 1,
    duration: duration,
    curve: curve,
  );
}