无法更改 TextFormField 边框宽度

Question

I am trying to change width of the border of TextFromField , but it's not working.

Here is my code below.

TextFormField(
   decoration: InputDecoration(
                border: OutlineInputBorder(
                borderSide: new BorderSide(color: Colors.white,width:2)),
                fillColor: Colors.white,
                labelText: 'Enter your username or email address'
                ),
),

Answer 1

You should use the enableBorder . Try something like this

TextFormField(
          decoration: InputDecoration(
              enabledBorder: OutlineInputBorder(
                  borderSide: new BorderSide(color: Colors.red, width: 10)),
              fillColor: Colors.white,
              labelText: 'Enter your username'),
        )

Reference here:

InputDecorarion Class Documentation

BorderSide Class Documentation