onVerticalScrollEvent method
- bool isDirectionUp
override
Called when a user scrolls the tab.
isDirectionUp - false when the user scrolls farther down the page,
and true when the user scrolls back up toward the top of the page.
NOTE: available only if PlatformChromeSafariBrowser.isEngagementSignalsApiAvailable returns true.
Officially Supported Platforms/Implementations:
- Android WebView (Official API - EngagementSignalsCallback.onVerticalScrollEvent)
Parameters - Officially Supported Platforms/Implementations:
isDirectionUp: all platforms
Use the PlatformChromeSafariBrowserEvents.isMethodSupported method to check if this method is supported at runtime.
Implementation
@override
void onVerticalScrollEvent(bool isDirectionUp) {}