增加方法

lib/custom_webview/view_model/custom_controller.dart

@@ -51,14 +51,16 @@ class CustomController extends ChangeNotifier {
   String? _title;
   AppBar? get appBar => _title == null
       ? null
-      : AppBar(
-          title: ListenableBuilder(
-            listenable: this,
-            builder: (context, child) {
-              return Text(_title!, style: _appBarTextStyle);
-            },
-          ),
-        );
+      : _isHideNavigationBar
+          ? null
+          : AppBar(
+              title: ListenableBuilder(
+                listenable: this,
+                builder: (context, child) {
+                  return Text(_title!, style: _appBarTextStyle);
+                },
+              ),
+            );
   Future<bool> setTitle(String title) async {
     if (!_customWebViewState.mounted) {
       return Future.value(false);
@@ -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);
+  }
 }