bug fixes
parent
c1ec32fa33
commit
16c6640d9c
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import 'package:flutter/material.dart';
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class GetQRCodeView extends StatelessWidget {
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final String qrCodeUrl = "https://your-qrcode-url.com/qrcode.png"; // Replace with your QR code URL
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text('QR Code Dialog Example'),
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),
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body: Center(
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child: ElevatedButton(
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onPressed: () {
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showQRCodeDialog(context, qrCodeUrl);
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},
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child: Text('Show QR Code'),
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),
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),
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);
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}
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// Function to display the QR code in a dialog
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void showQRCodeDialog(BuildContext context, String qrCodeUrl) {
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showDialog(
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context: context,
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builder: (BuildContext context) {
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return AlertDialog(
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title: Text('Scan QR Code'),
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content: Image.network(
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qrCodeUrl,
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loadingBuilder: (BuildContext context, Widget child, ImageChunkEvent? loadingProgress) {
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if (loadingProgress == null) {
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return child; // Display the QR code once loaded
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} else {
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// Show a CircularProgressIndicator while the image is loading
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return Center(
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child: CircularProgressIndicator(
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value: loadingProgress.expectedTotalBytes != null
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? loadingProgress.cumulativeBytesLoaded / (loadingProgress.expectedTotalBytes ?? 1)
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: null,
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),
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);
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}
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},
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errorBuilder: (context, error, stackTrace) {
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// Display an error widget if the image fails to load
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return Icon(Icons.error, color: Colors.red);
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},
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),
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actions: [
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TextButton(
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onPressed: () {
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Navigator.of(context).pop(); // Close the dialog
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},
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child: Text('Close'),
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),
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],
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);
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},
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);
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}
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}
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void main() {
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runApp(MaterialApp(home: GetQRCodeView()));
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}
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