在Flutter Alarm Manager回调中使用插件时MissingPluginException

问题描述

即使我已按照插件文档中的所有步骤进行操作，但在android_alarm_manager回调中使用shared_preferences插件时，仍然收到此异常。

Unhandled Exception: MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences)

我最近在Flutter版本1.20之上创建了这个项目，该版本使用Flutter Android Embedding V2，因此它应该自动注册插件。

Flutter Doctor输出：

[✓] Flutter (Channel stable,1.20.2,on Microsoft Windows [Version 10.0.19041.450],locale en-US)
    • Flutter version 1.20.2 at C:\src\flutter
    • Framework revision bbfbf1770c (2 weeks ago),2020-08-13 08:33:09 -0700
    • Engine revision 9d5b21729f
    • Dart version 2.9.1


[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at D:\Android\Sdk
    • Platform android-30,build-tools 29.0.2
    • ANDROID_HOME = D:\Android\Sdk
    • Java binary at: D:\Program Files\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[✓] Android Studio (version 4.0)
    • Android Studio at D:\Program Files\Android Studio
    • Flutter plugin version 48.1.2
    • Dart plugin version 193.7361
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[✓] VS Code (version 1.47.2)
    • VS Code at C:\Users\MOHNAD\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.12.2

[✓] Connected device (1 available)
    • Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 10 (API 29) (emulator)

• No issues found!

预先感谢?

解决方法

我能够通过删除导致FlutterEngine发出此警告的软件包keyboard_visibility: ^0.5.6来解决此问题

W/FlutterEngine(10724): Tried to automatically register plugins with FlutterEngine (io.flutter.embedding.engine.FlutterEngine@8ca5659) but could not find and invoke the GeneratedPluginRegistrant.