60 lines
1.5 KiB
Dart
60 lines
1.5 KiB
Dart
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import 'package:flutter/material.dart';
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import 'package:pdfx/pdfx.dart';
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import 'package:internet_file/internet_file.dart'; // flutter pub add internet_file
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class PdfViewerWidget extends StatefulWidget {
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final String url;
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const PdfViewerWidget({super.key, required this.url});
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@override
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State<PdfViewerWidget> createState() => _PdfViewerWidgetState();
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}
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class _PdfViewerWidgetState extends State<PdfViewerWidget> {
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late PdfControllerPinch _pdfController;
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bool _isLoading = true;
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@override
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void initState() {
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super.initState();
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_initPdf();
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}
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Future<void> _initPdf() async {
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// Scarica il file in memoria in modo fluido
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final pdfData = await InternetFile.get(widget.url);
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_pdfController = PdfControllerPinch(
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document: PdfDocument.openData(pdfData),
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);
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if (mounted) setState(() => _isLoading = false);
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}
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@override
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void dispose() {
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_pdfController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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if (_isLoading) {
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return const Center(child: CircularProgressIndicator());
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}
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return Scaffold(
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// Usiamo Scaffold dentro il Dialog per avere l'AppBar e poter chiudere
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appBar: AppBar(
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title: const Text("Visualizzatore PDF"),
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leading: IconButton(
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icon: const Icon(Icons.close),
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onPressed: () => Navigator.pop(context),
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),
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),
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body: PdfViewPinch(
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controller: _pdfController,
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// pdfx gestisce nativamente il pinch to zoom!
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),
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);
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}
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}
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