onRgba method
Implementation
@override
Future<bool> onRgba(
int key, Uint8List data, int height, int width, int strideAlign) async {
return await methodChannel.invokeMethod<bool>('onRgba', {
"data": data,
"height": height,
"width": width,
"key": key,
"stride_align": strideAlign,
}) ??
false;
}