showOverlay method
Shows the overlay UI above the keyboard.
Calls the native 'showOverlay' method to display the overlay with the UI implementation specified in registerOverlayUi.
Parameters:
overlayHeightDp
: Optional parameter to specify the height of the overlay in density-independent pixels. If not provided, the native implementation will use the default height.
Implementation
@override
Future<void> showOverlay({int? overlayHeightDp}) async {
await methodChannel.invokeMethod('showOverlay');
}