Listview.Builder -> Height Of Container Is Stretching In Flutter, Even If I Put Smaller Value? Update

When using ListView.builder in Flutter, the height of each item is determined by the content of the item itself. If the content of an item is larger than the height you specified for the container, it will stretch to accommodate the content.

To ensure that each item has a fixed height, you can wrap the content of the item in a container with a fixed height. For example:

less
ListView.builder(
  itemCount: items.length,
  itemBuilder: (BuildContext context, int index) {
    return Container(
      height: 50, // specify a fixed height
      child: Text(items[index]),
    );
  },
);

In the example above, each item in the ListView has a fixed height of 50. If the content of an item is larger than 50, it will be clipped to fit within the container.

If you want the content of each item to wrap to multiple lines, you can use a Text widget wrapped in a Flexible widget instead of a Container. For example:

less
ListView.builder(
  itemCount: items.length,
  itemBuilder: (BuildContext context, int index) {
    return Container(
      height: 50, // specify a fixed height
      child: Row(
        children: [
          Flexible(
            child: Text(
              items[index],
              overflow: TextOverflow.ellipsis,
            ),
          ),
        ],
      ),
    );
  },
);

In the example above, the content of each item will wrap to multiple lines if it is too long to fit on one line. The overflow property is set to TextOverflow.ellipsis to indicate that text that does not fit on one line should be truncated with an ellipsis.

In Flutter’s ListView.builder widget, you can set the height and width of each item in the list by defining a custom itemBuilder function that returns a widget with the desired dimensions. Here’s an example:

dart
ListView.builder(
  itemCount: 10,
  itemBuilder: (context, index) {
    return SizedBox(
      height: 50, // set the height of each item to 50
      width: 100, // set the width of each item to 100
      child: Container(
        color: Colors.blue,
        child: Text('Item $index'),
      ),
    );
  },
);

In this example, the itemBuilder function returns a SizedBox widget with a height of 50 and a width of 100, containing a Container widget with a blue background color and some text. You can adjust the height and width values as needed for your specific use case.

In Flutter, intrinsic height refers to the height of a widget that is determined by the size of its contents, rather than by a fixed or predetermined value. Widgets with intrinsic height adjust their height based on the size of their content.

For example, the height of a Text widget is determined by the amount of text that it contains and the font size and style applied to it. Similarly, the height of an Image widget is determined by the size of the image it displays.

Intrinsic height is useful for creating layouts where the height of a widget needs to adapt to the content within it, such as a list of items with varying amounts of text or images.

Flutter provides several widgets that have an intrinsic height, such as Text, Image, and SizedBox. Additionally, developers can create custom widgets with intrinsic height by implementing the intrinsicHeight method in their widget’s render object.