TextView re-positioning when keyboard shown(Swift TextView resize when keyboard shown : Swift TextView 키보드 리사이즈) 참고 : https://youtu.be/VuiPGJOEBH4 control TextView in ScrollView we need textViewDidBeginEditing(), textViewDidEndEditing() function (override) when keyboard shown (become editing mode), we control scrollview's contentOffSet change x, y coordinate func textViewDidBeginEditing(_ textVi..