Flutter: Creating an Auto-Resize TextField

In Flutter, you can create an auto-resize as needed TextField (or TextFormField) in one of the following ways:

• Set the maxlines argument to null. The textfield can expand forever if a lot of text is entered.
• Set minLines to 1 and maxLines to N (a possitive integer). The textfield will auto expand or shrink based on the length of the entered text. It will stop expanding and start scrolling if it reaches N lines.

The example below will demonstrate the second approach.Advertisements

Example Preview:

The code:

Scaffold(
      appBar: AppBar(
        title: const Text('KindaCode.com'),
      ),
      body: const Padding(
        padding: EdgeInsets.all(30),
        child: Center(
          child: TextField(
            minLines: 1,
            maxLines: 10,
            style: TextStyle(fontSize: 20),
            decoration: InputDecoration(border: OutlineInputBorder()),
          ),
        ),
      ),
    );

Further reading:

• Flutter & Hive Database: CRUD Example
• Flutter: Customizing the TextField’s Underline
• Flutter: Make a TextField Read-Only or Disabled
• Flutter: Adding a Clear Button to a TextField
• How to make rounded corners TextField in Flutter
• Flutter: Show/Hide Password in TextField/TextFormField

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