crossAxisCount property
横轴子元素的数量 自适应最大像素 use SliverGridDelegateWithFixedCrossAxisCount or SliverSimpleGridDelegateWithFixedCrossAxisCount
Implementation
final int crossAxisCount;
横轴子元素的数量 自适应最大像素 use SliverGridDelegateWithFixedCrossAxisCount or SliverSimpleGridDelegateWithFixedCrossAxisCount
final int crossAxisCount;