How can I limit the size of a text field in flutter?

Use inputFormatters property

example:

TextFormField(
      inputFormatters: [
        LengthLimitingTextInputFormatter(10),
      ]
    )

namespace

import 'package:flutter/services.dart';

maxLength property is available in Flutter.

https://docs.flutter.io/flutter/material/TextField/maxLength.html

TextField(
  maxLength: 45,
)

You can use the maxLength property and you can still hide the bottom counter text by setting the counterText to empty string.

TextField(
  maxLength: 10,
  decoration: InputDecoration(
    counterText: ''
  ),
)

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