Calling method checkPermissions on plugin in ml-kit branch returns undefined

Describe the bug This problem ocurrs when trying to calling BarcodeScanner.checkPermissions() function in iOS in ml-kit branch: ⚡️ To Native -> CapacitorCommunityBarcodeScanner checkPermissions 131742848 ⚡️ TO JS undefined ⚡️ [log] - status: undefined ⚡️ [log] - some problem with the camera

The start method returns -1. The request permission method does return an error, but I’m assuming by the plugin.m file that it isn’t really implemented.

To Reproduce Steps to reproduce the behavior:

npm run build -> npx cap sync -> npx cap run ios or in xcode Then when app launches and I click the button where the method is associated, xcode gives me that error.

Expected behavior That the app the functions work as intended, giving me a valid value.

Version package.json:

{
  "name": "test",
  "version": "0.0.1",
  "author": "Ionic Framework",
  "homepage": "https://ionicframework.com/",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^14.0.0",
    "@angular/core": "^14.0.0",
    "@angular/forms": "^14.0.0",
    "@angular/platform-browser": "^14.0.0",
    "@angular/platform-browser-dynamic": "^14.0.0",
    "@angular/router": "^14.0.0",
    "@capacitor-community/barcode-scanner": "github:capacitor-community/barcode-scanner#ml-kit",
    "@capacitor/core": "^3.7.0",
    "@capacitor/ios": "^3.7.0",
    "@ionic/angular": "^6.1.9",
    "rxjs": "~6.6.0",
    "tslib": "^2.2.0",
    "zone.js": "~0.11.4"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "^14.0.0",
    "@angular-eslint/builder": "~13.0.1",
    "@angular-eslint/eslint-plugin": "~13.0.1",
    "@angular-eslint/eslint-plugin-template": "~13.0.1",
    "@angular-eslint/template-parser": "~13.0.1",
    "@angular/compiler": "^14.0.0",
    "@angular/compiler-cli": "^14.0.0",
    "@angular/language-service": "^14.0.0",
    "@capacitor/cli": "4.1.0",
    "@ionic/angular-toolkit": "^6.0.0",
    "@types/jasmine": "~3.6.0",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "^12.11.1",
    "@typescript-eslint/eslint-plugin": "5.3.0",
    "@typescript-eslint/parser": "5.3.0",
    "eslint": "^7.6.0",
    "eslint-plugin-import": "2.22.1",
    "eslint-plugin-jsdoc": "30.7.6",
    "eslint-plugin-prefer-arrow": "1.2.2",
    "jasmine-core": "~3.8.0",
    "jasmine-spec-reporter": "~5.0.0",
    "karma": "~6.3.2",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage": "~2.0.3",
    "karma-coverage-istanbul-reporter": "~3.0.2",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "^1.5.0",
    "protractor": "~7.0.0",
    "ts-node": "~8.3.0",
    "typescript": "~4.7.3"
  },
  "description": "An Ionic project"
}

Desktop (please complete the following information):

• OS: iMac17,1
• Browser: safari for devtools
• Version: last ml-kit branch commit

Smartphone (please complete the following information):

• Device: iOS 6, target version: 12.4 (and the other 12.* versions)
• OS: 12.5.5

Additional context It is a new blank project. The project compiles in www without problems and the version of the plugin indicated in xcode when compiling is 3.0.1 so I don’t understand how this is happening. The code: html:

<ion-header [translucent]="true">
  <ion-toolbar>
    <ion-title> Tab 1 </ion-title>
  </ion-toolbar>
</ion-header>

<ion-content [fullscreen]="true">
  <ion-header collapse="condense">
    <ion-toolbar>
      <ion-title size="large">Tab 1</ion-title>
    </ion-toolbar>
  </ion-header>

  <ion-button (click)="startScan()">scan</ion-button>
</ion-content>

page.ts:

import { Component } from '@angular/core';
// import { BarcodeScanner } from '@capacitor-community/barcode-scanner';
import { BarcodeScanner } from '@capacitor-community/barcode-scanner';
@Component({
  selector: 'app-tab1',
  templateUrl: 'tab1.page.html',
  styleUrls: ['tab1.page.scss'],
})
export class Tab1Page {
  constructor() {}
  async startScan() {
    // BarcodeScanner.hideBackground(); // make background of WebView transparent
    console.log('tryin to scan!');
    // console.log(BarcodeScanner);
    const status = await BarcodeScanner.checkPermissions();
    console.log('status:', status);
    if (status !== 'granted') {
      console.log(
        'some problem with the camera\n',
        'If you want to grant permission for using your camera, enable it in the app settings.'
      );
      const req = await BarcodeScanner.requestPermissions();
      console.log('request:', req);
    } else if (status === 'granted') {
      console.log('camera permission granted!');
    }

    const result = await BarcodeScanner.start(); // start scanning and wait for a result

    // if the result has content
    console.log('result?');
    if (result) {
      console.log(result); // log the raw scanned content
    }
  }
}

[thegnuu]

If you are willing to implement some android code and help out here this would be awesome. The current “discussion” is found here #107

I will close this issue for now, keeping this issue in my backlog for the ml-kit stuff. Feel free to ask question or post news on the ml-kit issue!

Thank you!

[fewNeurons]

Hi again, I’ve made it able to work in this quick demo https://github.com/fewNeurons/barcode-scanner-test.