hideMagnifier method
Hide the current magnifier.
This does nothing if there is no magnifier.
Implementation
void hideMagnifier() {
// This cannot be a check on `MagnifierController.shown`, since
// it's possible that the magnifier is still in the overlay, but
// not shown in cases where the magnifier hides itself.
if (_magnifierController.overlayEntry == null) {
return;
}
_magnifierController.hide();
}