MissingPluginException同时使用advance_pdf_viewer颤振

Question

当我尝试使用advance_pdf_viewer时，它会在控制台中抛出一个错误

[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: 

MissingPluginException(No implementation found for method getPage on channel flutter_plugin_pdf_viewer)
E/flutter (11212): #0      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:175:7)
E/flutter (11212): <asynchronous suspension>
E/flutter (11212): #1      PDFDocument.get (package:advance_pdf_viewer/src/document.dart:97:18)
E/flutter (11212): <asynchronous suspension>
E/flutter (11212): #2      _PDFViewerState._loadPage (package:advance_pdf_viewer/src/viewer.dart:151:18)
E/flutter (11212): <asynchronous suspension>

我正在尝试打开一个pdf通过链接传递给我的班级下面提到。每当我试图打开pdf，它就会抛出上面的错误。请帮我把这个修好。

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

class viewDoc extends StatefulWidget {
  final doc;
  final title;
  const viewDoc({@required this.doc, @required this.title, Key? key})
      : super(key: key);

  @override
  State<viewDoc> createState() => _viewDocState();
}

class _viewDocState extends State<viewDoc> {
  bool isLoading = true;
  var document;
  PDFDocument? document1;
  //final GlobalKey<SfPdfViewerState> _pdfViewerKey = GlobalKey();
  PDFPage? pageOne;
  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance!.addPostFrameCallback((_) async {
      document1 = await PDFDocument.fromURL(widget.doc);
      setState(() => isLoading = false);
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Example'),
      ),
      body: Center(
          child: isLoading
              ? Center(child: CircularProgressIndicator())
              : PDFViewer(document: document1!)),
    );
  }
}

Answer 1

它看起来是advance_pdf_viewer版本2.0.1中的一个问题，并在2.0.2中得到了修正，但是2.0.2还没有在pub.dev上发布(可能在将来)

这个提交修复了错误，直到。将advance_pdf_viewer替换为pubspec.yaml中的以下内容

advance_pdf_viewer:
    git:
      url: git@github.com:lohanidamodar/pdf_viewer.git
      ref: 4e5d96be29de515f1081c0b6897741b8dca84722

https://github.com/lohanidamodar/pdf_viewer/issues/117 https://github.com/lohanidamodar/pdf_viewer/issues/110

Answer 2

如果应用程序仍然从Ozan Taskiran提供的解决方案中崩溃，尝试使用https版本(在Ozan Taskiran提供的第一个链接中找到)

advance_pdf_viewer:
  git:
    url: https://github.com/lohanidamodar/pdf_viewer.git
    ref: 4e5d96be29de515f1081c0b6897741b8dca84722