findChildIndexBuilder method

int? findChildIndexBuilder({
  1. required String id,
  2. required List<Asset> assets,
  3. int placeholderCount = 0,
})

Indicates how would the grid found a reusable RenderObject through id. 为 Grid 布局指示如何找到可复用的 RenderObject。

Implementation

int? findChildIndexBuilder({
  required String id,
  required List<Asset> assets,
  int placeholderCount = 0,
}) =>
    null;