All 7 Layout Widgets (Row, Column, Stack, Container) questions
More in Layout Widgets (Row, Column, Stack, Container)
What is the Container widget, and how does it let you conveniently combine padding, margin, background color, and border decoration all together within just one single genuinely convenient widget? How does the Stack widget let you genuinely layer several separate child widgets directly on top of one another, and how does the Positioned widget let you precisely control exactly where each individual layered child actually appears within that Stack? How do Expanded and Flexible let you properly control exactly how much genuinely available space a specific given child should actually take up relative to its own siblings within a surrounding Row or Column? How do mainAxisAlignment and crossAxisAlignment properly control the specific alignment of children within a Row or Column along each of those particular widget's own two genuinely separate distinct axes? How does Flutter's own underlying constraint based layout system genuinely work, specifically regarding how constraints actually flow down the widget tree while sizes actually flow back up? How can you properly build a genuinely fully custom layout widget by directly extending MultiChildLayoutDelegate or CustomMultiChildLayout, for a genuinely specific complex arrangement not already covered by any of Flutter's own existing standard layout widgets?
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Flutter › Layout Widgets (Row, Column, Stack, Container)

What are Row and Column, and how do they let you arrange several separate child widgets either horizontally or vertically alongside one another?

Beginner

Answer

Row arranges its own child widgets in a genuine horizontal line running from left to right, while Column arranges its own children in a genuine vertical line running from top to bottom, and both are among the genuinely most fundamental, commonly used layout widgets throughout essentially any Flutter app, letting you compose together several separate individual smaller widgets into a properly organized larger combined layout simply by placing them together as children within one of these two particular widgets.
Row(
  children: [Icon(Icons.star), Text('Rating: 4.5')],
)
Real-world example A product rating display arranges a star icon directly alongside its corresponding rating text using a simple Row, achieving a clean, properly aligned horizontal layout with just a genuinely small handful of straightforward lines of code.

Common follow-ups: What genuinely happens if a Row's own combined children happen to be wider than the actual available horizontal screen space?;What is the specific practical difference between mainAxisAlignment and crossAxisAlignment on a Row?

Flutter Widgets Fundamentals (Stateless & Stateful);Responsive & Adaptive UI Design
All 7 Layout Widgets (Row, Column, Stack, Container) questions