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import 'package:flutter/material.dart';
import 'package:flutter_demo_provider/app_state.dart';
import 'package:provider/provider.dart';

class TextEditWidget extends StatefulWidget {
  @override
  _TextEditWidgetState createState() => _TextEditWidgetState();
}

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import 'package:flutter/material.dart';
import 'package:flutter_demo_provider/app_state.dart';
import 'package:flutter_demo_provider/text_display.dart';
import 'package:flutter_demo_provider/text_edit.dart';
import 'package:provider/provider.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.

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import 'package:flutter/material.dart';

class AppState with ChangeNotifier {
  AppState();

  String _displayText = "";

  void setDisplayText(String text) {
    _displayText = text;
    notifyListeners();

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# Flutter Multi select ChoiceChip

Hello Everyone

In this article we will see how to use `ChoiceChip` to accept multiple selections

Let's get started

First things first

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var serviceAccount = require("./service/cred.json");

// admin.initializeApp(functions.config().firebase);
admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),
});

const { Storage } = require('@google-cloud/storage');

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/*
 * Copyright (c) 2012 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

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BillingClient mBillingClient;

// To get key go to Developer Console > Select your app > Development Tools > Services & APIs.
String base64Key = "PLACE_YOUR_KEY_HERE";

mBillingClient = BillingClient.newBuilder(this).setListener(new PurchasesUpdatedListener() {
    @Override
    public void onPurchasesUpdated(int responseCode, @Nullable List<Purchase> purchases) {
        for(Purchase purchase: purchases) {
            // When every a new purchase is made

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import android.text.TextUtils
import android.util.Base64
import com.android.billingclient.util.BillingHelper
import java.io.IOException
import java.security.InvalidKeyException
import java.security.KeyFactory
import java.security.NoSuchAlgorithmException
import java.security.PublicKey
import java.security.Signature

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void initState() {
  super.initState();
  _retrieveDynamicLink();
}

Future<void> _retrieveDynamicLink() async {
  final PendingDynamicLinkData data = await FirebaseDynamicLinks.instance.retrieveDynamicLink();
  final Uri deepLink = data?.link;

  if (deepLink != null) {

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import 'dart:async';

import 'package:firebase_dynamic_links/firebase_dynamic_links.dart';

class DynamicLinks {
  
  // create a link with params
  static Future<Uri> createLinkWithParams(String code) =>
      _getLink('mylink', {'code': code});