Using Rows and Columns in Flutter

 Using Rows and Columns in Flutter

Flutter uses Rows and Columns as fundamental layout widgets to arrange child widgets horizontally and vertically.


What Are Rows and Columns?

Row: Places its children in a horizontal line (left to right).


Column: Places its children in a vertical line (top to bottom).


Both are subclasses of the Flex widget, and you can customize their alignment, spacing, and size.


Basic Syntax

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Row(

  children: [

    Widget1(),

    Widget2(),

    Widget3(),

  ],

)


Column(

  children: [

    WidgetA(),

    WidgetB(),

    WidgetC(),

  ],

)

Important Properties

Property Description

mainAxisAlignment How to align children along the main axis (horizontal for Row, vertical for Column). Examples: start, center, spaceBetween, spaceAround.

crossAxisAlignment How to align children along the cross axis (vertical for Row, horizontal for Column). Examples: start, center, stretch.

mainAxisSize How much space the Row/Column takes along the main axis: min (wrap content) or max (expand).


Example: Row

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Row(

  mainAxisAlignment: MainAxisAlignment.spaceAround,

  crossAxisAlignment: CrossAxisAlignment.center,

  children: [

    Icon(Icons.star, color: Colors.red),

    Text('Star'),

    ElevatedButton(onPressed: () {}, child: Text('Click')),

  ],

)

Places the icon, text, and button evenly spaced horizontally.


Vertically centers them.


Example: Column

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Column(

  mainAxisAlignment: MainAxisAlignment.center,

  crossAxisAlignment: CrossAxisAlignment.start,

  children: [

    Text('Title', style: TextStyle(fontSize: 24)),

    Text('Subtitle'),

    ElevatedButton(onPressed: () {}, child: Text('Submit')),

  ],

)

Stacks the texts and button vertically.


Centers them vertically in the available space.


Aligns them to the start horizontally (left side).


Nesting Rows and Columns

You can nest Rows inside Columns and vice versa to create complex layouts.


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Column(

  children: [

    Row(

      children: [

        Icon(Icons.home),

        Text('Home'),

      ],

    ),

    Row(

      children: [

        Icon(Icons.settings),

        Text('Settings'),

      ],

    ),

  ],

)

Tips

Use Expanded or Flexible widgets inside Rows or Columns to control how children resize.


Avoid overflow errors by wrapping content with SingleChildScrollView if space might be limited.


Use Spacer() widget to insert flexible gaps between children.

Learn Flutter Training in Hyderabad

Read More

Creating Responsive Layouts in Flutter

🧩 UI & Layout 

Working with Text and Images in Flutter

How to Use the Flutter Debug Console


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