smooth rounded corners in swift
问题 How can I create a UIButton with rounded corners that are smooth? The standard apple rounded corners are much nicer than the standard rounded corners. If I design a button in sketch, I can toggle "smooth corners" which toggles the corners of a shape from Apple rounded corners (smooth) to standard rounded corners. Here is a comparison: How can I toggle this in swift? showContentButton.layer.cornerRadius = 20 rounds the corners, however, I don't really know if this rounded corners are "smooth