flutter - 在其他页面中打开抽屉

Question

我的抽屉在我的 main.dart 文件中。我想用另一页打开抽屉。当然 Scaffold.of(context).openDrawer();没用。但我不知道。

Answer 1

像这样创建一个公共(public)抽屉:

import 'package:flutter/widgets.dart';

class PublicDrawer extends StatefulWidget {
  PublicDrawer({Key key}) : super(key: key);

  @override
  _PublicDrawerState createState() => _PublicDrawerState();
}

class _PublicDrawerState extends State<PublicDrawer> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Container();
  }
}

在您的所有其他页面上，使用脚手架来实现您的抽屉:

import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:~~~~~~~/Widgets/drawer.dart';

class ProfilePage extends StatefulWidget {
  ProfilePage({Key key}) : super(key: key);

  @override
  _ProfilePageState createState() => _ProfilePageState();
}

class _ProfilePageState extends State<ProfilePage> {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        drawer: PublicDrawer(), <----
        body: Container(),
      ),
    );
  }
}