title: Flutter , Centering TextFormField with others inside Row
body: <p>I creating a custom <code>TextFormField</code> with other <code>Text</code> widget and align all center together.</p>
  <p>Using <code>Row</code> with center without the value everything is on center.</p>
  <p>However when value entered, because of <code>Expanded</code> of two, so the space is divided by two. <strong>But my purpose is to make everything keep on center, even when typing</strong></p>
  <p>Without <code>Expanded</code>, <code>TextFormField</code> is not allow to put inside <code>Row</code>. Kind a hard</p>
  <p><a href="https://i.stack.imgur.com/rhjSA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rhjSA.png" alt="enter image description here" /></a>
  <a href="https://i.stack.imgur.com/9FSkh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9FSkh.png" alt="enter image description here" /></a></p>
  <pre><code>Row(
    crossAxisAlignment: CrossAxisAlignment.center,
    mainAxisAlignment: MainAxisAlignment.center,
    mainAxisSize: MainAxisSize.max,
    children: [
      Expanded(
        child:  TextFormField(
          keyboardType: TextInputType.numberWithOptions(decimal: true),
          inputFormatters: [
            DecimalTextInputFormatter(decimalRange: 2)
          ],
          textAlign: TextAlign.end,
          style: theme.textTheme.bodyText1!.copyWith(
            color: Colors.black,
            fontWeight: FontWeight.bold,
            fontSize: 20.sp
          ),
          decoration: InputDecoration(
            isDense: true,
            contentPadding: EdgeInsets.zero,
            border: InputBorder.none,
            focusedBorder: InputBorder.none,
            enabledBorder: InputBorder.none,
            errorBorder: InputBorder.none,
            disabledBorder: InputBorder.none,
            hintText: &quot;0.00&quot;,
            hintStyle: theme.textTheme.bodyText1!.copyWith(
              color: Color(0xFFBDBDBD),
              fontWeight: FontWeight.bold,
              fontSize: 20.sp
            ),
          ),
        ),
      ),
      SizedBox(width: 5.sp,),
      Expanded(
        child: Padding(
          padding: EdgeInsets.only(top: 7.sp),
          child: Text(&quot;AAA&quot;,
            style: theme.textTheme.bodyText1!.copyWith(
              color: Color(0xFF8A8A8E),
              fontWeight: FontWeight.w600
            ),
          ),
        ),
      ),
    ],
  ),
  </code></pre>