build method

Widget build({ required Widget measuredChild, ScrollController? scrollController, ScrollPhysics? physics, bool outerScroll = true, })

生成 EasyRefresh 实例。

Implementation

Widget build({
  required Widget measuredChild,
  ScrollController? scrollController,
  ScrollPhysics? physics,
  bool outerScroll = true,
}) {
  return EasyRefresh.builder(
    controller: controller,
    header: header,
    footer: footer,
    onRefresh: onRefresh,
    onLoad: onLoad,
    notRefreshHeader: notRefreshHeader,
    notLoadFooter: notLoadFooter,
    simultaneously: simultaneously ?? false,
    canRefreshAfterNoMore: canRefreshAfterNoMore ?? false,
    canLoadAfterNoMore: canLoadAfterNoMore ?? false,
    resetAfterRefresh: resetAfterRefresh ?? true,
    refreshOnStart: refreshOnStart ?? false,
    refreshOnStartHeader: refreshOnStartHeader,
    callRefreshOverOffset: callRefreshOverOffset ?? 20,
    callLoadOverOffset: callLoadOverOffset ?? 20,
    spring: spring,
    frictionFactor: frictionFactor,
    scrollBehaviorBuilder: scrollBehaviorBuilder,
    triggerAxis: triggerAxis,
    scrollController: this.scrollController ?? scrollController,
    childBuilder: (context, refreshPhysics) {
      if (!outerScroll) {
        // 在不使用外层 SingleChildScrollView 时，通过 ScrollConfiguration
        // 透传 refreshPhysics，使得自带滚动的子组件能够完美对接下拉刷新
        return ScrollConfiguration(
          behavior: ScrollConfiguration.of(
            context,
          ).copyWith(physics: refreshPhysics),
          child: measuredChild,
        );
      }
      // 优先使用 refreshPhysics 以确保下拉刷新功能正常工作
      final ScrollPhysics effectivePhysics = refreshPhysics;
      final ScrollController? effectiveController =
          this.scrollController ?? scrollController;
      return SingleChildScrollView(
        controller: effectiveController,
        physics: effectivePhysics,
        primary: effectiveController == null,
        child: measuredChild,
      );
    },
  );
}