An AspectRatio widget in Flutter is a widget that sizes its child widget to a specific aspect ratio. It takes in a single child widget and a width-to-height aspect ratio as input, and it sizes the child widget to the given aspect ratio while maintaining the child widget’s intrinsic dimensions.
For example, you might use an AspectRatio widget to ensure that an image maintains its original aspect ratio when it is displayed on a screen with a different aspect ratio. You could also use an AspectRatio widget to ensure that a widget such as a button or a text field maintains a consistent shape across different screen sizes or device orientations.
Here is an example of how you might use an AspectRatio widget in Flutter:
AspectRatio( aspectRatio: 16 / 9, child: Image.asset('my_image.jpg'), ),
In this example, the AspectRatio widget will size the
Image widget to a 16:9 aspect ratio while maintaining the intrinsic dimensions of the image.