Flutter：open_file打开本地文件报错问题

相关插件及版本： open_file: ^3.2.1
问题：
项目中一直用的这个插件，突然发现在安卓高版本不能正常使用，报权限问题permissionDenied，断点调试提示相关权限是MANAGE_EXTERNAL_STORAGE，申请权限之后还是不行，报错内容是Failed to find configured root that contains ，如下

java.lang.RuntimeException: java.lang.IllegalArgumentException: Failed to find configured root that contains /data/data/包名/flutter_app/测试.pdf

open_file插件地址
按说明重新配置filepaths依旧不行，找到了open_file的升级版open_filex
在这里插入图片描述

To use this plugin, add open_filex as a dependency in your pubspec.yaml file.

dependencies:open_filex: ^lastVersion

Example

import 'package:open_filex/open_filex.dart';OpenFilex.open("/sdcard/example.txt");

when Conflict with other plugins about FileProvider, add code below in your /android/app/src/main/AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"package="xxx.xxx.xxxxx"><application>...<providerandroid:name="androidx.core.content.FileProvider"android:authorities="${applicationId}.fileProvider"android:exported="false"android:grantUriPermissions="true"tools:replace="android:authorities"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/filepaths"tools:replace="android:resource" /></provider></application>
</manifest>

furthermore add code below in your /android/app/src/main/res/xml/filepaths.xml

<paths><external-path name="external-path" path="."/><external-cache-path name="external-cache-path" path="."/><external-files-path name="external-files-path" path="."/><files-path name="files_path" path="."/><cache-path name="cache-path" path="."/><root-path name="root" path="."/>
</paths>

when Android dependency ‘com.android.support:appcompat-v7’ has different version for the compile error, add code below in your /android/build.gradle

subprojects {project.configurations.all {resolutionStrategy.eachDependency { details ->if (details.requested.group == 'com.android.support'&& !details.requested.name.contains('multidex') ) {details.useVersion "27.1.1"}}}
}