How to set height and width of button inside a Container in Flutter?

Question

I want to have a button of fixed width and height inside a container. But, for some reason button takes height and width of Container. I tried using SizedBox and ButtonTheme but they don't work as well.

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';

void main() {
  debugPaintSizeEnabled = true;
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      // home: EditorScreen(),
      home: Scaffold(
        body: SafeArea(
          child: Container(
            height: 65,
            width: double.infinity,
            color: Colors.black,
            child: SizedBox(
              height: 50,
              width: 50,
              child: ButtonTheme(
                minWidth: 50,
                height: 50,
                child: FlatButton(
                  onPressed: () {},
                  color: Colors.red,
                  child: Text("Test"),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

flutter.dev/docs/development/ui/layout/constraints - read the first 3 paragraphs — pskink
– pskink, Commented Dec 19, 2020 at 11:47
your welcome - i said 3 paragraphs, but to be honest check all 29 examples they provide — pskink
– pskink, Commented Dec 19, 2020 at 13:05
"I ended up checking the whole article" - good for you ;-) — pskink
– pskink, Commented Dec 19, 2020 at 14:15

BambinoUA · Accepted Answer · 2020-12-19 11:14:11Z

1

Specify for parent container alignment property.

answered Dec 19, 2020 at 11:14

BambinoUA

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Comments

Luis Utrera · Accepted Answer · 2020-12-19 12:06:20Z

0

You could try adding padding to the container

answered Dec 19, 2020 at 12:06

Luis Utrera

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Comments

shuvo · Accepted Answer · 2020-12-21 04:37:53Z

0

If you add the button center of the container then wrap with Center widget or if you want some other alignment then please specify that using alignment property.

edited Dec 21, 2020 at 4:37

answered Dec 19, 2020 at 12:42

shuvo

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