Toast 出现在错误的时间

Question

我正在为我的应用程序 (bot_toast) 测试新的 toast，我需要从另一个文件调用它来改进我的代码，但我无法使其以正确的方式工作。我知道它是一些基本的东西，但我尝试了几个小时，但仍然无法解决。问题是：当我运行应用程序时吐司弹出，而不是当我单击按钮时（这应该是正确的行为）。

代码如下：

main.dart

import 'package:teste_toast/notification.dart';
import 'package:bot_toast/bot_toast.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return BotToastInit(
      child: MaterialApp(
        navigatorObservers: [BotToastNavigatorObserver()],
        title: 'Flutter Demo',
        theme: ThemeData(
          primarySwatch: Colors.blue,
        ),
        home: MyHomePage(title: 'Flutter Demo Home Page'),
      ),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text('Toast test'),
          ])),
      floatingActionButton: FloatingActionButton(
        onPressed: ShowToast(context),
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}

notification.dart:

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

ShowToast(BuildContext context) {
  return BotToast.showText(text: 'toast message');
}

我正在使用这个吐司： https://pub.dev/packages/bot_toast#Online-Demo

Answer 1

确保您在 onPressed 方法中调用方法，如下所示：

floatingActionButton: FloatingActionButton(
        onPressed:(){ ShowToast(context),}
        child: Icon(Icons.add),
      ),

Toast 出现在错误的时间

Toast appears at the wrong time

android

toast

flutter