Customizing Scrollbar in Flutter

Customizing Scrollbar in Flutter

In Flutter, you can easily customize the default scrollbar using the ScrollbarTheme widget. This allows you to adjust the color, thickness, and visibility of the scrollbar. Below is an example of how to customize the scrollbar.

Code Example

ScrollbarTheme(
  data: ScrollbarThemeData(
    thumbColor: MaterialStateProperty.all(Colors.grey[400]), // Color of the scrollbar
    trackColor: MaterialStateProperty.all(Colors.white), // Color of the track
    trackBorderColor: MaterialStateProperty.all(Colors.grey[300]), // Color of the track border
    thickness: MaterialStateProperty.all(8.0), // Thickness of the scrollbar
    thumbVisibility: MaterialStateProperty.all(true), // Visibility of the scrollbar
    trackVisibility: MaterialStateProperty.all(true), // Visibility of the track
  ),
  child: ListView.builder(
    itemCount: records.length, // Number of list items
    itemBuilder: (context, index) => _buildListItem(
        records[index], index, tableWidth, records.length - 1 == index),
  ),
);

Explanation

The code above demonstrates how to customize the scrollbar in Flutter. By using the ScrollbarTheme widget, you can set various properties of the scrollbar. The thumbColor sets the color of the scrollbar, while trackColor sets the color of the scrollbar track. The thickness adjusts the thickness of the scrollbar, and thumbVisibility and trackVisibility control the visibility of the scrollbar and track, respectively.