postVisualStateCallback method

  1. @SupportedPlatforms(platforms: [AndroidPlatform(apiName: 'WebView.postVisualStateCallback', apiUrl: 'https://developer.android.com/reference/android/webkit/WebView#postVisualStateCallback(long,%20android.webkit.WebView.VisualStateCallback)', available: '23')])
Future<void> postVisualStateCallback({
  1. int? requestId,
})

Requests a callback when this WebView is ready to be drawn.

When omitted, Android also posts a visual-state callback after each finished page load and fires PlatformWebViewCreationParams.onVisualStateReady.

Officially Supported Platforms/Implementations:

Parameters - Officially Supported Platforms/Implementations:

  • requestId: all platforms

Use the PlatformInAppWebViewController.isMethodSupported method to check if this method is supported at runtime.

Implementation

@SupportedPlatforms(
  platforms: [
    AndroidPlatform(
      apiName: 'WebView.postVisualStateCallback',
      apiUrl:
          'https://developer.android.com/reference/android/webkit/WebView#postVisualStateCallback(long,%20android.webkit.WebView.VisualStateCallback)',
      available: '23',
    ),
  ],
)
Future<void> postVisualStateCallback({int? requestId}) {
  throw UnimplementedError(
    '${PlatformInAppWebViewControllerMethod.postVisualStateCallback.name} is not implemented on the current platform',
  );
}