build method

  1. @override
Widget build(
  1. BuildContext context,
  2. SwiperPluginConfig config
)

Implementation

@override
Widget build(BuildContext context, SwiperPluginConfig config) {
  if (config.itemCount > 20) {
    print('warning: The itemCount is too big, '
        'we suggest use TDFractionPaginationBuilder');
  }
  var activeColor = this.activeColor ??
      (config.outer
          ? TDTheme.of(context).brandNormalColor
          : TDTheme.of(context).whiteColor1);
  var color = this.color ??
      (config.outer
          ? TDTheme.of(context).grayColor3
          : TDTheme.of(context).whiteColor1.withOpacity(0.55));

  if (config.indicatorLayout != PageIndicatorLayout.NONE &&
      config.layout == SwiperLayout.DEFAULT) {
    return PageIndicator(
      count: config.itemCount,
      controller: config.pageController,
      layout: config.indicatorLayout,
      size: size,
      activeColor: activeColor,
      color: color,
      space: space,
    );
  }

  var list = <Widget>[];

  var itemCount = config.itemCount;
  var activeIndex = config.activeIndex;

  for (var i = 0; i < itemCount; ++i) {
    var active = i == activeIndex;
    var isActiviRectangle =
        roundedRectangleWidth != null && roundedRectangleWidth! > 0 && active;

    list.add(Container(
      key: Key('pagination_$i'),
      margin: EdgeInsets.all(space),
      child: AnimatedContainer(
        duration:
            Duration(milliseconds: animationDuration ?? _kAminatedDuration),
        width: isActiviRectangle
            ? roundedRectangleWidth
            : (active ? activeSize : size),
        height: active ? activeSize : size,
        decoration: BoxDecoration(
            color: active ? activeColor : color,
            borderRadius: BorderRadius.circular(activeSize / 2)),
      ),
    ));
  }

  if (config.scrollDirection == Axis.vertical) {
    return Column(
      key: key,
      mainAxisSize: MainAxisSize.min,
      children: list,
    );
  } else {
    return Row(
      key: key,
      mainAxisSize: MainAxisSize.min,
      children: list,
    );
  }
}