Question 77516 in Flutter Question posted in
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should I specify size in int or double for SizedBox? – Flutter

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…

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2

Answers


  1. 0

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

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  2. 0

    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;
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