How To Change Flutter Textfield Hint Text Size – Easy Flutter Guide

In this tutorial, we’ll learn how to properly customize Flutter textfield hint text size by using practical Flutter code examples.

Introduction: Flutter Textfield Hint Text Size

Flutter textfield hint text size is as the name suggests, the size of the hint text of the Flutter textfield. Hint text in Flutter textfield is the text that can be used to show hint about what input should the user provide to the Flutter textfield. It is shown when the Flutter textfield is empty. Let’s now change the Flutter textfield hint text size.

Default Flutter Textfield Hint Text Size

Let’s see the default hint size of the Flutter textfield. For that we have to define a simple Flutter textfield. So for that we have to use the decoration constructor of the Flutter textfield and then passing input decoration class to that constructor. Then using the hint text constructor and passing it a string. See the below code:

TextField(
           decoration: InputDecoration(
                hintText: 'This is the default hint text size'),
              )

In the image above, you can see that it shows the default Flutter textfield hint text size. Now let’s change the font size of the Flutter textfield hint text.

Change Flutter Textfield Hint Text Size

Let’s now change Flutter textfield hint text size. For that we have to use the hint style constructor of the input decoration class. Then pass it text style class, using the font size constructor of the text style class, we can change the Flutter textfield hint text size. See the below code:

TextField(
            decoration: InputDecoration(
                    hintText: 'Custom size of hint text',
                    hintStyle: TextStyle(fontSize: 22)),
              )

You can see in the above image that I have changed the size of hint text just to demonstrate that the customization of Flutter textfield hint text size is working properly.

Congrats, hope you now have a complete practical knowledge of how to change Flutter textfield hint text size in Flutter textfield. I would love to hear your thought on it in comment section.

The complete source code of custom Flutter textfield hint text size is given in the next section.

Custom Flutter Textfield Hint Text Size Source Code

import 'package:flutter/material.dart';
void main() {
  runApp(const MyApp());
}
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Homepage(),
    );
  }
}
class Homepage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
        child: Scaffold(
      body: Center(
          child: Padding(
              padding: EdgeInsets.symmetric(horizontal: 40),
              child: TextField(
                decoration: InputDecoration(
                    hintText: 'Custom size of hint text',
                    hintStyle: TextStyle(fontSize: 22)),
              ))),
    ));
  }
}

Conclusion

To conclude this tutorial, now you’ve a detailed and in-depth practical knowledge of how to customize Flutter textfield hint text size. I’d love to have your feedback on this post.

I’d also love to see you visit my other tutorials on Flutter app development and Python programming as well. Thank you for reading this post.