add textfield in flutter code example

Example 1: textfield border flutter

decoration: new InputDecoration(
                border: new OutlineInputBorder(
                    borderSide: new BorderSide(color: Colors.teal)),
                hintText: 'Tell us about yourself',
                helperText: 'Keep it short, this is just a demo.',
                labelText: 'Life story',
                prefixIcon: const Icon(
                  Icons.person,
                  color: Colors.green,
                ),
                prefixText: ' ',
                suffixText: 'USD',
                suffixStyle: const TextStyle(color: Colors.green)),
          ),

Example 2: textfield set value flutter

/// You can use a [TextFormField] instead of [TextField]
/// and use the [initialValue] property. for example:

TextFormField(initialValue: "I am smart")