should I specify size in int or double for SizedBox?-CodePudding

When specifying widget size in flutter should I use int or double? For example, should it be SizedBox(width:8), or SizedBox(width:8.0)?

I tried looking into flutter docs, but could find anything about this, so instead I looked for examples: https://docs.flutter.dev/development/ui/layout and https://api.flutter.dev/flutter/widgets/SizedBox-class.html, but they seem to be inconsistent...

CodePudding user response：

When you want to set round value, you don't need to use double but otherwise you need it.

CodePudding user response：

If you go inside the SizedBox you will see a Double waiting there. When you type 8, SizedBox treats it as 8.0 anyway.

Inside SizedBox it is

const SizedBox({ super.key, this.width, this.height, super.child });
const SizedBox.expand({ super.key, super.child })
    : width = double.infinity,
      height = double.infinity;