增加方法

lib/custom_webview/view_model/custom_controller.dart

@@ -50,6 +50,8 @@ class CustomController extends ChangeNotifier {
   /// 内部访问AppBar的title接口
   String? _title;
   AppBar? get appBar => _title == null
+      ? null
+      : _isHideNavigationBar
           ? null
           : AppBar(
               title: ListenableBuilder(
@@ -82,6 +84,31 @@ class CustomController extends ChangeNotifier {
     }
   }
 
+  bool _isHideNavigationBar = false;
+  FutureOr<bool> hideNavigationBar() {
+    if (!_customWebViewState.mounted) {
+      return Future.value(false);
+    }
+    if (_isHideNavigationBar) {
+      return Future.value(true);
+    }
+    _isHideNavigationBar = true;
+    notifyListeners();
+    return Future.value(true);
+  }
+
+  FutureOr<bool> showNavigationBar() {
+    if (!_customWebViewState.mounted) {
+      return Future.value(false);
+    }
+    if (!_isHideNavigationBar) {
+      return Future.value(true);
+    }
+    _isHideNavigationBar = false;
+    notifyListeners();
+    return Future.value(true);
+  }
+
   /// 外部访问JavaScriptChannel的接口
   final List<JavaScriptChannel> _javaScriptChannels = [];
   List<JavaScriptChannel>? get javaScriptChannels => _javaScriptChannels;
@@ -97,4 +124,14 @@ class CustomController extends ChangeNotifier {
     controller.reload();
     return Future.value(true);
   }
+
+  Future<bool> removeJavaScriptChannel(String name) async {
+    if (_javaScriptChannels.where((element) => element.name == name).isEmpty) {
+      return Future.value(false);
+    }
+    _javaScriptChannels.removeWhere((element) => element.name == name);
+    controller.removeJavaScriptChannel(name);
+    controller.reload();
+    return Future.value(true);
+  }
 }