MissingPluginException(No implementation found for method addWalletCard on channel flutter_wallet_card)on Android

[MostaM0]

Hey there, I am trying to run the example app provided with the library but it keeps giving me this error when I run it on android:

E/flutter (22679): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: MissingPluginException(No implementation found for method addWalletCard on channel flutter_wallet_card)

It works fine on an IOS device, what exactly is the expected behaviour on Android ?

[WebEferen]

Hi @MostaM0.

Currently I have removed Android (Google Wallet) integration option due to changed implementation. It is on my current bucket list to get it working. Hopefully by the end of Novemeber it will be ready.

Sorry for unfortunate delay.

[MostaM0]

No problem, thanks a lot for you efforts. Looking forward for the Android feature.

[rashedswen]

@WebEferen can I work on implementing android?

[WebEferen]

Hi @rashedswen, sure! That would be awesome. Last couple weeks I was busy so that I haven't enough time to finish the Android part.

Feel free to adjust the code and add the channel methods for an Android :)

[arielCloudX]

Hello everyone, Has there been any progress in the implementation of Google Wallet?

I appreciate any news you can provide.

[WebEferen]

There's no updates from the Android yet. This is on my bucket list with version 4 which is upcoming (Q2 2024).

[sgaabdu4]

Hi @WebEferen,

Do you have any plans to add this functionality? I believe you can now add pkpass files to Google Wallet. (See: Google Wallet Support)

These are the steps I followed to create it within Google Wallet. This might give you some inspiration.

Honestly, I really appreciate what you've done so far!

Changes to AndroidManifest.xml:

1. Added tools namespace and added package bundle:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools"
          package="com.example.com">

2. Added permissions:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>

3. Added FileProvider within the tag:

<provider
    android:name="androidx.core.content.FileProvider"
    android:authorities="${applicationId}.fileProvider"
    android:exported="false"
    android:grantUriPermissions="true"
    tools:replace="android:authorities">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/filepaths"
        tools:replace="android:resource" />
</provider>

Added filepaths.xml under android/app/src/main/res/xml:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
  <files-path name="files-path" path="../" />
</paths>

Code Changes

The packages I used were open_file_plus, permission_handler and path_provider.

final permissionValue = await Permission.manageExternalStorage.request();
if (permissionValue.isGranted) {
  final directory = await getTemporaryDirectory();
  final filePath = '${directory.path}/pass.pkpass';

  // Write the Uint8List to the file
  final file = File(filePath);
  await file.writeAsBytes(fileFromDatabase);

  // Open the .pkpass file
  final openpass = await OpenFile.open(
    filePath,
    type: 'application/vnd.apple.pkpass',
  );
  print(openpass.type);
}