getFrame method

Rect? getFrame(
  1. int? frame
)

Implementation

Rect? getFrame(int? frame) {
  // Given a frame index, return the rect that describes that frame in the image.
  if (image == null || frame == null || frame < 0 || frame >= length) {
    return null;
  }
  int i = frame * 4;
  return Rect.fromLTRB(
      positions[i], positions[i + 1], positions[i + 2], positions[i + 3]);
}