问题 In flutter app, when an input field is wrapped inside Scrollable, Opacity, Stack, when keyboard appear, the scrollable view is not correctly placed. How to make the scrollable view correctly when keyboard appear? If input field is not wrapped inside Scrollable, the keyboard is not appear at all. It can be test by changing ListView with Column in the following code. import 'package:flutter/material.dart'; void main() { runApp(new MyApp()); } class MyApp extends StatelessWidget { @override