setInvisibly method
Nevermind this method :D, look away Seriously: It is used to change scale state without trigging updates on the []
Implementation
void setInvisibly(PhotoViewScaleState newValue) {
if (_scaleStateNotifier.value == newValue) {
return;
}
prevScaleState = _scaleStateNotifier.value;
_scaleStateNotifier.updateIgnoring(newValue);
}