width

The actual width of this node, in LogicalPixels.

The position and size of Nodes are assigned by their parent in layout, using setChildBounds. The parent node uses any of : evalMinWidth, evalPrefWidth and evalMaxWidth and its own logic to determine the actual width of this Node.

To specify a fixed width for this node, you may set overridePrefWidth. evalPrefWidth will ignore nodePrefWidth and return overridePrefWidth instead.

However, this still does not guarantee the node will be the size requested (e.g. if the parent node isn't big enough to accommodate its children's preferred sizes).