Flutter webview download pdf

To enable PDF downloads in a Flutter WebView, you can use the webview_flutter package. Here’s how:

Step 1: Add the webview_flutter dependency

  
dependencies:
  flutter:
    sdk: flutter
  webview_flutter: ^2.0.0
  
  

Step 2: Import the necessary packages

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

Step 3: Create a WebView widget

  
class WebViewExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return WebView(
      initialUrl: 'https://example.com',
      javascriptMode: JavascriptMode.unrestricted,
    );
  }
}
  
  

Step 4: Handle the PDF download

  
class WebViewExample extends StatelessWidget {
  final Completer _controller = Completer();

  @override
  Widget build(BuildContext context) {
    return WebView(
      initialUrl: 'https://example.com',
      javascriptMode: JavascriptMode.unrestricted,
      onWebViewCreated: (WebViewController webViewController) {
        _controller.complete(webViewController);
      },
      navigationDelegate: (NavigationRequest request) {
        if (request.url.endsWith('.pdf')) {
          // Handle PDF download
          // You can use plugins like permission_handler and path_provider to handle file downloads
          // For example:
          // - Ask for storage permission
          // - Download the PDF file using http package
          // - Save the file in the device's storage
          // - Open the saved file with another package like open_file or pdf_viewer
          return NavigationDecision.prevent;
        }
        return NavigationDecision.navigate;
      },
    );
  }
}
  
  

With these steps, you can handle PDF downloads within a Flutter WebView. Remember to handle permissions, file downloads, and opening/saving the downloaded PDF file using appropriate Flutter packages.