Flutter Hot Reload和Hot Restart无法正常工作

问题描述

我正在尝试处理一个刚启动的项目，并且在编辑应用程序时我意识到，即使我多次更改了设计，热重加载和热重启动都没有作用。我唯一会看到屏幕更改的时间是当我卸载应用并再次运行时，

I am trying to work on a project that I just started and while editing the app I realized that neither hot reload nor hot restart are working even though I have changed the design multiple times. The only time that I would see a change in the screen is when I uninstall the app and run again,

我正在测试该应用一个模拟器，我正在使用Android Studio。

I am testing the app on an emulator and I am using Android Studio.

在输入此问题之前，我已经找到了解决方案，这就是我尝试过的事情：

I searched for a solution before typing this question and this is what I have tried:

• 颤振清洁


• 颤振医生-v 然后颤振升级


• 删除模拟器并尝试使用另一个模拟器


• 使缓存无效并重新启动

• flutter clean
• flutter doctor -v then flutter upgrade
• deleting the emulator and trying on another emulator
• invalidate cache and restart

可以很好地工作，现在却不能，下面是一个例子：

It used to work really well and now it is not, here's an example:

import 'package:gradient_app_bar/gradient_app_bar.dart';

import '../constants.dart';

class PlantScreen extends StatefulWidget {
  @override
  _PlantScreenState createState() => _PlantScreenState();
}

class _PlantScreenState extends State<PlantScreen> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: GradientAppBar(
        centerTitle: true,
        title: Text('plant A'),
        gradient: LinearGradient(
            colors: Constants.primaryGradient,
            begin: Alignment.topLeft,
            end: Alignment.bottomRight),
      ),
      body: Container(
        constraints: BoxConstraints.expand(),
        decoration: BoxDecoration(
          gradient: LinearGradient(
              colors: Constants.primaryVariantGradient,
              begin: Alignment.topLeft,
              end: Alignment.bottomRight),
        ),
        child: Column(
          children: <Widget>[
            Card(
              child: Column(
                children: <Widget>[

                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

推荐答案

我认为问题出在我的导入语句上

I figured the issue was with my import statement

it是：

import'file：/// E：/SelfProjects2/water_my_plants/lib/screens/plantScreen.dart';

我已经将其更改为

import'package：water_my_plants / screens / plantScreen.dart';

在我的主dart文件中，该文件具有到PlantScreen（）的路径

in my main dart file that had the route to the PlantScreen()

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