How to change TextField's height and width?

Question

How to customise TextField\'s width and height?

Answer 1

I think you want to change the inner padding/margin of the TextField.

You can do that by adding isDense: true and contentPadding: EdgeInsets.all(8) properties as follow:

Container(
  padding: EdgeInsets.all(12),
  child: Column(
    children: <Widget>[
      TextField(
        decoration: InputDecoration(
          border: OutlineInputBorder(),
          labelText: 'Default TextField',
        ),
      ),
      SizedBox(height: 16,),
      TextField(
        decoration: InputDecoration(
          border: OutlineInputBorder(),
          labelText: 'Densed TextField',
          isDense: true,                      // Added this
        ),
      ),
      SizedBox(height: 16,),
      TextField(
        decoration: InputDecoration(
          border: OutlineInputBorder(),
          labelText: 'Even Densed TextFiled',
          isDense: true,                      // Added this
          contentPadding: EdgeInsets.all(8),  // Added this
        ),
      )
    ],
  ),
)

It will be displayed as:

Answer 2

If you use "suffixIcon" to collapse the height of the TextField add: suffixIconConstraints

TextField(
                    style: TextStyle(fontSize: r * 1.8, color: Colors.black87),
                    decoration: InputDecoration(
                      isDense: true,
                      contentPadding: EdgeInsets.symmetric(vertical: r * 1.6, horizontal: r * 1.6),
                      suffixIcon: Icon(Icons.search, color: Colors.black54),
                      suffixIconConstraints: BoxConstraints(minWidth: 32, minHeight: 32),
                    ),
                  )

Answer 3

Screenshot:

---

Widget _buildTextField() {
  final maxLines = 5;

  return Container(
    margin: EdgeInsets.all(12),
    height: maxLines * 24.0,
    child: TextField(
      maxLines: maxLines,
      decoration: InputDecoration(
        hintText: "Enter a message",
        fillColor: Colors.grey[300],
        filled: true,
      ),
    ),
  );
}

Answer 4

TextField( minLines: 1, maxLines: 5, maxLengthEnforced: true)

Answer 5

You can try the margin property in the Container. Wrap the TextField inside a Container and adjust the margin property.

new Container(
  margin: const EdgeInsets.only(right: 10, left: 10),
  child: new TextField( 
    decoration: new InputDecoration(
      hintText: 'username',
      icon: new Icon(Icons.person)),
  )
),

Answer 6

To increase the height of TextField Widget just make use of the maxLines: properties that comes with the widget. For Example: TextField( maxLines: 5 ) // it will increase the height and width of the Textfield.