Issue when reading text file from Android Download folder with Android 11

[ASHBAW]

Bug Report

Issue when reading text file from Android Download folder with Android 11

Problem

I have an Ionic 5 app that uses this plugin to read text files from the Download folder on Android devices. On devices running Android 11 it does not work. Devices running Android 9 do work - have not tried on Android 10.

What is expected to happen?

App should be able to read in text file from Android's Download folder

What does actually happen?

The promise for readAsText() returns null

Information

Run on devices with Android 11

Command or Code

Ionic app is using @ionic-native/file/ngx as a wrapper for the cordova-plugin-file plugin.

const path = this.file.externalRootDirectory + 'Download';

this.file.readAsText(path, 'foo.txt').then((file) => {
   console.log('process file');   
}).catch((e) => {
  console.log('error '+ e); 
});

Again this works for Android 9 devices (have not been able to try on a Android 10 device) but not 11.

Environment, Platform, Device

Ionic 5 with the following configuration

   Ionic CLI                     : 6.12.2 (/Users/.nvm/versions/node/v12.18.3/lib/node_modules/@ionic/cli)
   Ionic Framework               : @ionic/angular 5.4.3
   @angular-devkit/build-angular : 0.1002.0
   @angular-devkit/schematics    : 10.1.7
   @angular/cli                  : 10.2.0
   @ionic/angular-toolkit        : 2.3.3

Cordova:

   Cordova CLI       : 10.0.0
   Cordova Platforms : android 9.0.0, ios 6.1.1
   Cordova Plugins   : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 5.0.0, (and 15 other plugins)

Utility:

   cordova-res (update available: 0.15.2) : 0.15.1
   native-run (update available: 1.2.2)   : 1.0.0

System:

   ios-sim : 8.0.2
   NodeJS  : v12.18.3 (/Users/.nvm/versions/node/v12.18.3/bin/node)
   npm     : 6.14.8
   OS      : macOS Catalina
   Xcode   : Xcode 12.2 Build version 12B45b

Version information

Using "cordova-plugin-file": "^6.0.2"

Checklist

• [ X ] I searched for existing GitHub issues
• [ X ] I updated all Cordova tooling to most recent version
• [ X ] I included all the necessary information above

[ASHBAW]

Verified that a Pixel 3 running Android 10 like Android 11 does not wok. Android 9 and below does work.

[alex-steinberg]

This is already dealt with here: #426

[vincent-seibus]

Hello,
I have got the same problem on Android 10 / cordova 9 . Works with Android 10 / Cordova 8.1.

[jfoclpf]

Android blocked access to shared folders from API 29 (Android 10) due to privacy issues.
https://developer.android.com/reference/android/os/Environment#getExternalStorageDirectory()
I'm having the same issue to store a file in Downloads folder
https://stackoverflow.com/questions/65668470/how-to-save-a-file-on-shared-space-in-cordova-with-android

[breautek]

Duplicate: #426