postWebMessage method

Future<void> postWebMessage({ required WebMessage message, WebUri? targetOrigin, })

Post a message to main frame. The embedded application can restrict the messages to a certain target origin. See HTML5 spec for how target origin can be used.

A target origin can be set as a wildcard ("*"). However this is not recommended.

NOTE for Android native WebView: This method should only be called if WebViewFeature.isFeatureSupported returns true for WebViewFeature.POST_WEB_MESSAGE.

NOTE for iOS: it is implemented using JavaScript.

NOTE for MacOS: it is implemented using JavaScript.

Officially Supported Platforms/Implementations:

• Android native WebView (Official API - WebViewCompat.postWebMessage)
• iOS
• MacOS

Implementation

Future<void> postWebMessage(
        {required WebMessage message, WebUri? targetOrigin}) =>
    platform.postWebMessage(message: message, targetOrigin: targetOrigin);