view_pdf_file example added (#57)

* view_pdf_file example added * made revelent changes changed package, example of both load pdf from asset and url, added link from example in readme * added example view_pdf_file * Added View PDF File example * minor changes
2025-11-09 04:58:58 +00:00 · 2020-10-06 14:00:19 +05:30
parent 23837f9048
commit 24955aeac5
71 changed files with 1533 additions and 1 deletions
--- a/view_pdf_file/lib/main.dart
+++ b/view_pdf_file/lib/main.dart
@@ -0,0 +1,98 @@
+import 'package:advance_pdf_viewer/advance_pdf_viewer.dart';
+import 'package:flutter/material.dart';
+import 'package:view_pdf_file/constants.dart';
+import 'package:view_pdf_file/viewPDF.dart';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+        title: 'View PDF File',
+        theme: ThemeData(
+          primarySwatch: Colors.blue,
+          visualDensity: VisualDensity.adaptivePlatformDensity,
+        ),
+        home: HomePage());
+  }
+}
+
+class HomePage extends StatefulWidget {
+  @override
+  _HomePageState createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  bool isLoading = false;
+  PDFDocument doc;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("View PDF File"),
+      ),
+      body: Container(
+        child: Center(
+          child: isLoading
+              ? CircularProgressIndicator()
+              : Column(
+                  crossAxisAlignment: CrossAxisAlignment.center,
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  mainAxisSize: MainAxisSize.max,
+                  children: [
+                    RaisedButton(
+                      onPressed: () {
+                        loadFromAsset();
+                      },
+                      child: Text("Load local PDF"),
+                    ),
+                    RaisedButton(
+                      onPressed: () {
+                        loadFromURL();
+                      },
+                      child: Text("Load PDF via URL"),
+                    ),
+                  ],
+                ),
+        ),
+      ),
+    );
+  }
+
+  loadFromAsset() async {
+    setState(() {
+      isLoading = true;
+    });
+    doc = await PDFDocument.fromAsset('assets/Hello.pdf');
+    setState(() {
+      isLoading = false;
+    });
+    Navigator.push(
+      context,
+      MaterialPageRoute(
+        builder: (_) => ViewPDF(doc: doc),
+      ),
+    );
+  }
+
+  loadFromURL() async {
+    setState(() {
+      isLoading = true;
+    });
+
+    doc = await PDFDocument.fromURL(Constants.pdfURL);
+    setState(() {
+      isLoading = false;
+    });
+    Navigator.push(
+      context,
+      MaterialPageRoute(
+        builder: (_) => ViewPDF(doc: doc),
+      ),
+    );
+  }
+}