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当中间图标不显示时,如何删除图标之间的空格

flutter-layout flutter

Cyrus the Great · 技术社区 · 6 年前

我在列中有4个图标,我不想在某些情况下显示2个中间图标,但它们的空间仍然保留。

return Column(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      crossAxisAlignment: CrossAxisAlignment.start,
      children: <Widget>[
        iconsModel[0].selected // decide to show icon or not
            ? Container(
                child:Image.asset(
                        iconsModel[0].iconAdress,
                        fit: BoxFit.cover,
                        color: widget.currentColorRow.withOpacity(0.5),
                      ),
              )
            : Container(),
        iconsModel[1].selected // decide to show icon or not
            ? Container(
                child:Image.asset(
                        iconsModel[1].iconAdress,
                        fit: BoxFit.cover,
                        color: widget.currentColorRow.withOpacity(0.5),
                      ),
              )
            : Container(),
        iconsModel[2].selected // decide to show icon or not
            ? Container(
                child:Image.asset(
                        iconsModel[2].iconAdress,
                        fit: BoxFit.cover,
                        color: widget.currentColorRow.withOpacity(0.5),
                      ),
              )
            : Container(),
        iconsModel[3].selected // decide to show icon or not
            ? Container(
                child:Image.asset(
                        iconsModel[3].iconAdress,
                        fit: BoxFit.cover,
                        color: widget.currentColorRow.withOpacity(0.5),
                      ),
              )
            : Container(),

当中间图标不显示时,如何删除这些空间?