setItem method

@override Future<void> setItem({ required String key, required dynamic value, })

When passed a key name and value, will add that key to the storage, or update that key's value if it already exists.

NOTE for Web: this method will have effect only if the iframe has the same origin.

Officially Supported Platforms/Implementations:

• Android native WebView
• iOS
• MacOS
• Web

Implementation

@override
Future<void> setItem({required String key, required dynamic value}) async {
  var encodedValue = json.encode(value);
  await controller?.evaluateJavascript(source: """
  window.$webStorageType.setItem("$key", ${value is String ? encodedValue : "JSON.stringify($encodedValue)"});
  """);
}