sync_time_ntp_totalxsoftware

Developed by Totalx Software

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A Flutter package for checking and synchronizing the device time with NTP (Network Time Protocol) server time. This package ensures that the device's time is accurate within a configurable tolerance and provides user-friendly dialogs to prompt corrections when discrepancies are detected.

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Features

• Fetch accurate time from an NTP server.
• Validate device time against NTP time with configurable tolerance.
• Display dialogs for time issues and guide users to date/time settings.
• Supports both Android and iOS platforms for settings navigation.

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Installation

Add the following dependencies to your project's pubspec.yaml file:

dependencies:
  sync_time_ntp_totalxsoftware: ^0.0.2

Run the following command:

flutter pub get

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Usage

1. Validate Device Time

Check if the device time is synchronized with the NTP server:

import 'package:sync_time_ntp_totalxsoftware/sync_time_ntp_totalxsoftware.dart';

void validateTime() async {
  bool isTimeSynced = await NtpTimeSyncChecker.validateDeviceTime(
      toleranceInSeconds: 5,
    );

  if (isTimeSynced) {
    print("Device time is synchronized.");
  } else {
    print("Device time is NOT synchronized.");
  }
}

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2. Fetch NTP Network Time

Fetch the current accurate time from an NTP server:

import 'package:sync_time_ntp_totalxsoftware/sync_time_ntp_totalxsoftware.dart';

void fetchNTPTime() async {
  DateTime? networkTime = await NtpTimeSyncChecker.getNetworkTime();

  if (networkTime != null) {
    print("Network Time: \$networkTime");
  } else {
    print("Failed to fetch NTP time.");
  }
}

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3. Show Time Sync Issue Dialog

Display a dialog when the device's time is not synced, prompting the user to correct it:

import 'package:flutter/material.dart';
import 'package:sync_time_ntp_totalxsoftware/sync_time_ntp_totalxsoftware.dart';

 // Show a dialog if time is not synchronized
  NtpTimeSyncChecker.showTimeSyncIssueDialog(
    context: context,
    onRetry: () {
        Navigator.pop(context);
        _validateTime();
    },
  );

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4. Complete Example

Here is a full example showcasing the package usage:

import 'package:flutter/material.dart';
import 'package:sync_time_ntp_totalxsoftware/sync_time_ntp_totalxsoftware.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'NTP Time Sync Example',
      home: const HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});

  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  String _status = "Not Checked";
  String _networkTime = "-";

  Future<void> _validateTime() async {
    bool isSynced = await NtpTimeSyncChecker.validateDeviceTime(
      toleranceInSeconds: 5,
    );
    setState(() {
      _status = isSynced ? "Time is synchronized" : "Time is NOT synchronized!";
    });

    if (!isSynced) {
      SyncTimeNTP.showTimeIssueDialog(
        context: context,
        onRetry: _validateTime,
      );
    }
  }

  Future<void> _fetchNetworkTime() async {
     DateTime? time = await NtpTimeSyncChecker.getNetworkTime();
    setState(() {
      _networkTime = time?.toString() ?? "Failed to fetch time";
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('NTP Time Sync Example')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text('Network Time: $_networkTime'),
            ElevatedButton(
              onPressed: _fetchNetworkTime,
              child: const Text('Fetch NTP Time'),
            ),
            const SizedBox(height: 20),
            Text('Status: $_status'),
            ElevatedButton(
              onPressed: _validateTime,
              child: const Text('Validate Device Time'),
            ),
          ],
        ),
      ),
    );
  }
}

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API Reference

validateTime({int toleranceInSeconds = 5}) → Future<bool>

• Description: Validates if the device's time is within a specified tolerance compared to the NTP server.
• Parameters:
  • toleranceInSeconds: The acceptable difference in seconds (default: 5 seconds).
• Returns: true if synchronized, otherwise false.

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getNetworkTime() → Future<DateTime?>

• Description: Fetches the current accurate time from an NTP server.
• Returns: A DateTime object with the network time or null on failure.

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showTimeIssueDialog({required BuildContext context, required void Function() onRetry})

• Description: Displays a dialog prompting the user to fix time synchronization issues.
• Parameters:
  • context: The widget context for displaying the dialog.
  • onRetry: A callback for retrying the time validation.

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Supported Platforms

• Android: Opens the date/time settings.
• iOS: Opens the date/time settings.

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Explore more about TotalX at www.totalx.in - Your trusted software development company!

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