Flutter防止键盘弹出导致超出屏幕

在做登录时，点击输入用户名的输入框，唤起键盘报错溢出BUG：bottom overflowed by xxx PIXELS

使用SingleChildScrollView包装

return new Scaffold(
  appBar: new AppBar(
    title: new Text("搜索"),
  ),
  //使用ScrollView包装一下，否则键盘弹出时会报错空间溢出
  body: new SingleChildScrollView(
    child: new ConstrainedBox(
      constraints: new BoxConstraints(
        minHeight: 120.0,
      ),
      child: new Column(
        mainAxisSize: MainAxisSize.min,
        mainAxisAlignment: MainAxisAlignment.spaceAround,
        children: <Widget>[
          new Padding(
            padding: EdgeInsets.fromLTRB(0.0, 40.0, 0.0, 10.0),
            child:new Text("注意", style: new TextStyle(fontSize: 18.0,color: Colors.orangeAccent),),
          ),
        ],
      ),
    ),
  ),
);

resizeToAvoidBottomPadding设置为false

return Scaffold(
  appBar: AppBar(
    elevation: 0.0,
    title: new Text("登陆"),
  ),

  resizeToAvoidBottomPadding: false, //输入框抵住键盘
);