如何将阴影应用于Swift中的UITextView？

我尝试用阴影给我,UITextView就像我为我做的那样,UIView但它不起作用.

试试这段代码:

OBJ-C

txtView.layer.cornerRadius = txtView.frame.size.height/2;
txtView.clipsToBounds = NO;
txtView.layer.shadowOpacity=0.4;
txtView.layer.shadowOffset = CGSizeMake(3, 3);

迅速

txtView.layer.cornerRadius = txtView.frame.size.height/2
txtView.clipsToBounds = false
txtView.layer.shadowOpacity=0.4
txtView.layer.shadowOffset = CGSizeMake(3, 3)

我希望它对你有用.