What is crossAxisAlignment?

The crossAxisAlignment property determines how Row and Column can position their children on their cross axes . A Row ‘s cross axis is vertical, and a Column ‘s cross axis is horizontal. The crossAxisAlignment property has five possible values: CrossAxisAlignment.

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How do you use Row flutters?

To create a row or column in Flutter, you add a list of children widgets to a Row or Column widget . In turn, each child can itself be a row or column, and so on. The following example shows how it is possible to nest rows or columns inside of rows or columns. The left column’s widget tree nests rows and columns.

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What is widget build?

A widget’s main job is to implement a build() function, which describes the widget in terms of other, lower-level widgets . The framework builds those widgets in turn until the process bottoms out in widgets that represent the underlying RenderObject , which computes and describes the geometry of the widget.

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