title: Inline flatbutton within textform field
body: <p><a href="https://i.stack.imgur.com/7tpvc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7tpvc.png" alt="enter image description here"></a></p>
  
  <p>Trying to add a flatbutton within textform field, below is code for current field implementation,</p>
  
  <pre><code>TextFormField(
                        textAlign: TextAlign.left,
                        obscureText: true,
                        cursorColor: Colors.white,
                        onChanged: (value) {
                          //Do something with the user input.
                          password = value;
                        },
                        style: TextStyle(color: Colors.white),
                        decoration: InputDecoration(
                          icon: Icon(Icons.help, color: Colors.white, ),
  //                        contentPadding: EdgeInsets.fromLTRB(20, 20, 20, 20),
                          labelText: 'Enter your password',
                          labelStyle: TextStyle(color: Colors.white),
                          focusedBorder: UnderlineInputBorder(
                              borderSide: BorderSide(color: Colors.white)),
                          enabledBorder: UnderlineInputBorder(
                              borderSide: BorderSide(color: Colors.white)),
                        ),
                      ),
  </code></pre>
  
  <p>Can someone assist on adding this as per the above screenshot.</p>