file input not working in build apk

[realrecordzLab]

After some tests I'm able to build correctly my app and get an apk. I've done some tests and in the browser the app works fine, but when I install the apk on the emulator I'm facing some problems.

The forst one is that my <input type="file"> if clicked will do nothing, no prompt are opened to select a file or multiple files. I'm using chrome://inspect/#devices and no error is logged into the console from the adb emulator. I need to ask a permission to use file selector or there is another way to achive this?
NB: I'm using vuejs for the front-end

      <div class="col-12" v-if="!selectedFiles.length > 0">
        <p class="text-muted">{{ log }}</p>
        <div class="mb-4">
          <input type="file" class="form-control" multiple @change="processFiles($event.target)">
        </div>
      </div>

The second problem is with node modules. In the main.js file I need to use some node modules like path, crypto, fs/promises. Anyway I've noticed that when I add them and build the apk, after installing the apk on the adb emulator, the app will shoutdown after few seconds. This will not happen if I comment or remove the modules. Is there any fix?

const crypro = require('crypto');
const back = require('androidjs').back;
const path = require('path');
const fs = require('fs/promises');

back.on("ping", () => {
	back.send("pong", "Hello from Android JS");
});

back.on('processFiles', (data) => {
	console.log(data);
});

[ItsYanko]

This is related to Android WebView. An handler has to be added in the Java code

[realrecordzLab]

This is related to Android WebView. An handler has to be added in the Java code

Unfortunately I'm not a Java programmer so I'm not sure how to proceed and what file needs to be modified before build the app

[ItsYanko]

This is related to Android WebView. An handler has to be added in the Java code

Unfortunately I'm not a Java programmer so I'm not sure how to proceed and what file needs to be modified before build the app

I'm not quite sure how this framework works. But I need a way to solve it or I'll have to find another way to do this