initStateAndTicker method

  1. @override
void initStateAndTicker(
  1. AssetPickerViewerState<AssetEntity, AssetPathEntity> s,
  2. TickerProvider v
)
override

Call when viewer is calling initState. 当预览器调用 initState 时注册 State 和 TickerProvider。

Implementation

@override
void initStateAndTicker(
  AssetPickerViewerState<AssetEntity, AssetPathEntity> s,
  TickerProvider v,
) {
  super.initStateAndTicker(s, v);
  _doubleTapAnimationController = AnimationController(
    duration: const Duration(milliseconds: 200),
    vsync: v,
  );
  _doubleTapCurveAnimation = CurvedAnimation(
    parent: _doubleTapAnimationController,
    curve: Curves.easeInOut,
  );
}