How To Change Flutter Textfield Height?

Flutter textfield height customization. In this article, I will be discussing about how to change Flutter textfield height. I will implement the Flutter textfield height customization step by step so you don’t have any queries left after reading this post. So let’s jump right into implementing the customization of Flutter textfield height.

What is Flutter Textfield Height?

Flutter textfield height, as the name suggests, it is the height of the Flutter textfield means the vertical space that the Flutter textfield will cover. Let’s now set our Flutter textfield height using a practical Flutter code.

Default Flutter Textfield Height

Let’s see the default Flutter textfield height. For that, we have to implement a simple Flutter textfield. See the below code:

 TextField(
           decoration: InputDecoration(
                  filled: true, 
                  fillColor: Colors.grey.shade200
                                      ),
           )

In the above code, I have used the filled and fill color constructor of the input decoration class to give our Flutter textfield a background color so you can see clearly the default Flutter textfield height. In the above image, you can see that this the default Flutter textfield height of the Flutter textfield.

Using isDense

Using is dense constructor of the input decoration class minimize the vertical space of the Flutter textfield which means less Flutter textfield height. Is dense takes a boolean value, by default it is false, making it true will decrease the Flutter textfield height as seen in the below image.

isDense: true

Using isCollapsed

Is collapsed constructor of the input decoration class also takes a boolean value, it makes the Flutter textfield height same with the input, by default it is false, making it true will trigger its effect on Flutter textfield height as seen in the below image.

isCollapsed: true

Changing Flutter Textfield Height Using Content Padding

Let’s see how we can change the Flutter textfield height with custom value. For that you have to use the content padding constructor of the input decoration class. See the code below for this:

contentPadding: EdgeInsets.all(30)

As you can see in the above code that we have used the content padding constructor and passed edge in sets all with value 30 to it which means having a padding of 30 from all four dimensions. In the image above, you can see that the Flutter textfield height is now increased. So in this way you can customize the Flutter textfield height.

Custom Flutter Textfield Source Code

flutter textfield height

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 StatefulWidget {
  @override
  State<Homepage> createState() => _HomepageState();
}
class _HomepageState extends State<Homepage> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
        child: Scaffold(
      body: Center(
          child: Padding(
              padding: EdgeInsets.symmetric(horizontal: 40),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  TextField(
                    style: TextStyle(color: Colors.purple),
                    cursorColor: Colors.purple,
                    decoration: InputDecoration(
                        border: InputBorder.none,
                        filled: true,
                        fillColor: Colors.purple.withOpacity(.08),
                        prefixIcon: Icon(
                          Icons.person,
                          color: Colors.purple,
                        ),
                        contentPadding: EdgeInsets.all(26),
                        labelText: 'Enter your name',
                        labelStyle:
                            TextStyle(color: Colors.purple.withOpacity(.8)),
                        enabledBorder: OutlineInputBorder(
                            borderSide: BorderSide(color: Colors.purple),
                            borderRadius: BorderRadius.circular(30).copyWith(
                                topRight: Radius.circular(0),
                                topLeft: Radius.circular(0))),
                        focusedBorder: OutlineInputBorder(
                            borderSide: BorderSide(color: Colors.purple),
                            borderRadius: BorderRadius.circular(30).copyWith(
                                topRight: Radius.circular(0),
                                topLeft: Radius.circular(0)))),
                  )
                ],
              ))),
    ));
  }
}

Conclusion

In conclusion, hope you now have a complete understanding of how to customize Flutter textfield height. I would love to have your feedback on it. I also have other articles on Flutter app development, Flutter animations, Flutter widgets, Flutter templates and many more. Thanks for reading this post.