public override void ConstructFromResource()
{
sourceWidth = packageItem.width;
sourceHeight = packageItem.height;
initWidth = sourceWidth;
initHeight = sourceHeight;
_content.interval = packageItem.interval;
_content.swing = packageItem.swing;
_content.repeatDelay = packageItem.repeatDelay;
_content.SetData(packageItem.texture, packageItem.frames, new Rect(0, 0, sourceWidth, sourceHeight));
SetSize(sourceWidth, sourceHeight);
}