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  changeAppIcon() async {
    try {
      if (await FlutterDynamicIcon.supportsAlternateIcons) {
        await FlutterDynamicIcon.setAlternateIconName(iconName[iconIndex]);
        debugPrint("App icon change successful");
        return;
      }
    } catch (e) {
      debugPrint("Exception: ${e.toString()}");
    }

vijayinyoutube

import 'package:flutter/material.dart';

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

vijayinyoutube

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
          child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [

vijayinyoutube

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Container(),
      floatingActionButtonLocation: ExpandableFloatLocation(),
      floatingActionButton: ExpandableDraggableFab(
        childrenBoxDecoration: const BoxDecoration(color: Colors.transparent),
        childrenCount: 4,

vijayinyoutube

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Container(),
      floatingActionButton: ExpandableDraggableFab(
        childrenCount: 1,
        distance: 10,      
        children: [

vijayinyoutube

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Container(),
    );
  }
}

vijayinyoutube

  showDialogBox() => showCupertinoDialog<String>(
        context: context,
        builder: (BuildContext context) => CupertinoAlertDialog(
          title: const Text('No Connection'),
          content: const Text('Please check your internet connectivity'),
          actions: <Widget>[
            TextButton(
              onPressed: () async {
                Navigator.pop(context, 'Cancel');
                setState(() => isAlertSet = false);

vijayinyoutube

 late StreamSubscription subscription;
  bool isDeviceConnected = false;
  bool isAlertSet = false;

  @override
  void initState() {
    getConnectivity();
    super.initState();
  }

vijayinyoutube

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Connectivity Checker'),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: () => Navigator.push(
            context,

vijayinyoutube

body: Center(
        child: ElevatedButton(
          onPressed: () async {
            await homePageData.saveJsonData(rawData);
            homePageData.getJsonData();
          },
          child: const Text('Save Data'),
        ),
      ),