Execute a dart function in background while receiving a call

Here MyPhoneReceiver.java is not needed...

change MyBroadcastReceiver code to this...

package com.ashbu.flutterappbackground;import android.app.Service;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.telephony.PhoneStateListener;import android.widget.Toast;import android.telephony.TelephonyManager;public class MyBroadcastReceiver extends BroadcastReceiver {    @Override    public void onReceive(final Context context, Intent intent) {        TelephonyManager telephony = (TelephonyManager)context.getSystemService(Service.TELEPHONY_SERVICE);        telephony.listen(new PhoneStateListener(){            @Override            public void onCallStateChanged(int state, String incomingNumber) {                super.onCallStateChanged(state, incomingNumber);                System.out.println("incomingNumber : "+incomingNumber);                Toast.makeText(context, "TeleDuce Customer "+ incomingNumber,            Toast.LENGTH_LONG).show();            }        },PhoneStateListener.LISTEN_CALL_STATE);    }}

The main thing is to give phonecall access from mobile to the app...(in permission settings)