hard20 pts · first answer countsflutterwidget-keys

Swapped Flutter tiles keep colors

Two StatefulWidget tiles in a Row store a random color in their State. When you swap their order in the list, the colors do not move with them. Why?

A.Flutter matches widgets to existing elements by type and position, so without keys the State objects stay in place; give each tile a key such as ValueKey(tile.id)B.setState was not called after the swapC.Row caches the first children it was given and keeps painting them, so a reordered list is ignored until the screen is pushed againD.StatefulWidgets cannot be reordered in Flutter

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Swapped Flutter tiles keep colors

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