[webview_flutter_android] Allow configuration of WebView file access through setAllowFileAccess

packages/webview_flutter/webview_flutter_android/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 4.2.0
+
+* Adds support for configuring file access permissions. See `AndroidWebViewController.setAllowFileAccess`.
+
 ## 4.1.0
 
 * Updates internal API wrapper to use `ProxyApi`s.

packages/webview_flutter/webview_flutter_android/lib/src/android_webview_controller.dart

@@ -353,6 +353,13 @@ class AndroidWebViewController extends PlatformWebViewController {
   void Function(ScrollPositionChange scrollPositionChange)?
       _onScrollPositionChangedCallback;
 
+  /// Sets the file access permission for the web view.
+  ///
+  /// The default value is true for apps targeting API 29 and below, and false
+  /// when targeting API 30 and above.
+  Future<void> setAllowFileAccess(bool allow) =>
+      _webView.settings.setAllowFileAccess(allow);
+
   /// Whether to enable the platform's webview content debugging tools.
   ///
   /// Defaults to false.

packages/webview_flutter/webview_flutter_android/pubspec.yaml

@@ -2,7 +2,7 @@ name: webview_flutter_android
 description: A Flutter plugin that provides a WebView widget on Android.
 repository: https://github.com/flutter/packages/tree/main/packages/webview_flutter/webview_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+webview%22
-version: 4.1.0
+version: 4.2.0
 
 environment:
   sdk: ^3.5.0

packages/webview_flutter/webview_flutter_android/test/android_webview_controller_test.dart

@@ -1495,6 +1495,22 @@ void main() {
 
       expect(await controller.getUserAgent(), userAgent);
     });
+
+    test('setAllowFileAccess', () async {
+      final MockWebView mockWebView = MockWebView();
+      final MockWebSettings mockSettings = MockWebSettings();
+      final AndroidWebViewController controller = createControllerWithMocks(
+        mockWebView: mockWebView,
+        mockSettings: mockSettings,
+      );
+
+      clearInteractions(mockWebView);
+
+      await controller.setAllowFileAccess(true);
+
+      verify(mockWebView.settings).called(1);
+      verify(mockSettings.setAllowFileAccess(true)).called(1);
+    });
   });
 
   test('setMediaPlaybackRequiresUserGesture', () async {