decodeImage method
Decode the file and extract a single image from it. If the file is
animated, the specified frame
will be decoded. If there was a problem
decoding the file, null is returned.
Implementation
@override
Image? decodeImage(List<int> bytes, {int frame = 0}) {
if (startDecode(bytes) == null) {
return null;
}
//_frame = 0;
//_numFrames = 1;
return decodeFrame(frame);
}