Flutter 如何在颤振中创建这种类型的对话框？

我想创建一个对话框，如下图所示。当显示对话框按钮仍然可点击时，按钮从第一个屏幕开始

我的成绩

---

有关底部工作表的更多信息，请查看

类MyHomePage扩展StatefulWidget{
MyHomePage（{Key，this.title}）：超级（Key:Key）；
最后的字符串标题；
@凌驾
_MyHomePageState createState（）=>\u MyHomePageState（）；
}
类_MyHomePageState扩展状态{
@凌驾
小部件构建（构建上下文）{
返回脚手架(
正文：中(
孩子：升起按钮(
已按下：（）{
_设置ModalBottomSheet（）；
},
子项：文本（“显示底页”），
),
),
);
}
void _settingModalBottomSheet（）{
showModalBottomSheet(
上下文：上下文，
生成器：（BuildContext bc）{
返回容器(
孩子：包裹(
儿童：[
列表砖(
前导：图标（图标、音乐、音符），
标题：文本（“音乐”），
onTap:（）=>{}），
列表砖(
前导：图标（Icons.videocam），
标题：文本（“视频”），
onTap:（）=>{}，
),
],
),
);
},
);
}
}

您可以通过

3

方式获得此信息（第一种

2

方式将根据需要隐藏付款部分）

`案例1-使用全局密钥

import 'package:flutter/material.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(MaterialApp(
    home: BottomWidget(),
  ));
}

class BottomWidget extends StatelessWidget {
  final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
  void showOrdersModel(BuildContext context) {
    scaffoldKey.currentState.showBottomSheet((context) {
      return Container(
        height: 250, // change height as required
        decoration: BoxDecoration(
          color: Colors.white,
          boxShadow: [
            BoxShadow(
              blurRadius: 10,
              color: Colors.grey[300],
              spreadRadius: 5,
            ),
          ],
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(12),
            topRight: Radius.circular(12),
          ),
        ),
        child: Center(child: Text('Orders')),
      );
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: scaffoldKey,
      body: Center(
        child: RaisedButton(
          onPressed: () => showOrdersModel(context), // pass context to work
          child: Text('Show my orders'),
        ),
      ),
    );
  }
}

情况3-使用颤振中的showModalBottomSheet

import 'package:flutter/material.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(MaterialApp(
    home: BottomWidget(),
  ));
}

class BottomWidget extends StatelessWidget {
  void showOrdersModel(BuildContext context) {
    showModalBottomSheet(
      context: context,
      shape: RoundedRectangleBorder( // apply this to get the rounder corners
        borderRadius: BorderRadius.vertical(
          top: Radius.circular(20),
        ),
      ),
      clipBehavior: Clip.antiAliasWithSaveLayer,
      builder: (ctx) {
        return Container(
          height: 250, // change height as required
          color: Colors.transparent,
          child: Center(child: Text('Orders')),
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: RaisedButton(
          onPressed: () => showOrdersModel(context), // pass context to work
          child: Text('Show my orders'),
        ),
      ),
    );
  }
}

---

您的答案在这里，请检查一下这个@SSVernekar对话框将覆盖我的按钮付款。当打开showModalBottomSheet时。也许你不明白我的目的。我需要按钮在底部的位置，然后打开对话框与该按钮没有覆盖我的按钮。但当我移动按钮点击底部时，对话框打开它的覆盖我的按钮。你对此有什么想法吗？对不起，我不能附加我的代码，因为它太长了。你可以尝试将按钮放在底部，然后单击打开对话框，你会看到。

import 'package:flutter/material.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(MaterialApp(
    home: BottomWidget(),
  ));
}

class BottomWidget extends StatefulWidget {
  @override
  _BottomWidgetState createState() => _BottomWidgetState();
}

class _BottomWidgetState extends State<BottomWidget> {
  void showOrdersModel(BuildContext context) {
    Scaffold.of(context).showBottomSheet((context) {
      return Container(
        height: 250, // change height as required
        decoration: BoxDecoration(
          color: Colors.white,
          boxShadow: [
            BoxShadow(
              blurRadius: 10,
              color: Colors.grey[300],
              spreadRadius: 5,
            ),
          ],
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(12),
            topRight: Radius.circular(12),
          ),
        ),
        child: Center(child: Text('Orders')),
      );
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Builder(
        builder: (ctx) => Center(
          child: RaisedButton(
            onPressed: () => showOrdersModel(ctx), // pass context to work
            child: Text('Show my orders'),
          ),
        ),
      ),
    );
  }
}

import 'package:flutter/material.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(MaterialApp(
    home: BottomWidget(),
  ));
}

class BottomWidget extends StatelessWidget {
  void showOrdersModel(BuildContext context) {
    showModalBottomSheet(
      context: context,
      shape: RoundedRectangleBorder( // apply this to get the rounder corners
        borderRadius: BorderRadius.vertical(
          top: Radius.circular(20),
        ),
      ),
      clipBehavior: Clip.antiAliasWithSaveLayer,
      builder: (ctx) {
        return Container(
          height: 250, // change height as required
          color: Colors.transparent,
          child: Center(child: Text('Orders')),
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: RaisedButton(
          onPressed: () => showOrdersModel(context), // pass context to work
          child: Text('Show my orders'),
        ),
      ),
    );
  }
}