Question

我在扩展图块中需要一个可重新排序的列表，但是除非将ReorderableListView放入固定大小的容器中，否则它会出现以下错误。

playerCards

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BoxConstraints forces an infinite height.
The relevant error-causing widget was
ReorderableListView

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RenderBox was not laid out: RenderStack#77d94 relayoutBoundary=up18 NEEDS-PAINT 

NEEDS-COMPOSITING-BITS-UPDATE
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1687 pos 12: 'hasSize'
The relevant error-causing widget was
ReorderableListView

如果将其放在固定的盒子中，则在尝试移动项目时会出现以下错误。

RenderBox was not laid out: _RenderTheatre#778cd relayoutBoundary=up17 NEEDS-PAINT 

NEEDS-COMPOSITING-BITS-UPDATE
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1687 pos 12: 'hasSize'
The relevant error-causing widget was
    ExpansionTile-[Thing]

Answer 1

我最终使用this awesome package代替了非常有限的ReorderableListView。

然后，我使用了ReorderableColumn小部件，它的效果很好。 Flutter团队确实应该更新ReorderableListView，以免受到限制。

Answer 2

这是工作代码的示例：

loader.lua

在ExpansionTile中颤振ReorderableListView

2 个答案: