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flutter - 错误：在我的项目中导入颜色选择器包时方法“AlwaysWinPanGestureRecognizer...”的参数“事件”

问题描述

欢迎 我 在我的项目中 导入flutter_colorpicker包 import 'package:flutter_colorpicker/flutter_colorpicker.dart';时遇到问题： 我收到此错误：

/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_colorpicker-0.5.0/lib/src/hsv_picker.dart:730:43: Error: The parameter 'event' of the method 'AlwaysWinPanGestureRecognizer.addAllowedPointer' has type 'PointerDownEvent', which does not match the corresponding type, 'PointerEvent', in the overridden method, 'DragGestureRecognizer.addAllowedPointer'.
 - 'PointerDownEvent' is from 'package:flutter/src/gestures/events.dart' ('/C:/src/flutter/packages/flutter/lib/src/gestures/events.dart').
 - 'PointerEvent' is from 'package:flutter/src/gestures/events.dart' ('/C:/src/flutter/packages/flutter/lib/src/gestures/events.dart').
Change to a supertype of 'PointerEvent', or, for a covariant parameter, a subtype.
  void addAllowedPointer(PointerDownEvent event) {
                                          ^
/C:/src/flutter/packages/flutter/lib/src/gestures/monodrag.dart:256:8: Context: This is the overridden method ('addAllowedPointer').
  void addAllowedPointer(PointerEvent event) {
       ^

这是颤振医生的结果：

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.2.1, on Microsoft Windows [Version 10.0.17763.1577], locale en-US)
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[√] Chrome - develop for the web
[√] Android Studio (version 3.6)
[√] IntelliJ IDEA Community Edition (version 2021.1)
[√] VS Code (version 1.56.2)
[√] Connected device (3 available)

• No issues found!

这是项目的依赖项：

dependencies:
  flutter:
    sdk: flutter
  shared_preferences: ^2.0.6
  flutter_colorpicker: ^0.5.0

有没有人有办法解决吗？感谢每一个人

标签： flutterdartflutter-layoutflutter-dependenciesdart-pub

解决方案

只需将 flutter_colorpicker 版本更改为 0.4.0

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