如何修复'sizeWithFont：constrainedToSize：lineBreakMode：'已弃用：警告

迅速

 // adjust the label height (top align text)
// old
var labelSize: CGSize = model.name.sizeWithFont(self.nameLabel.font,  constrainedToSize: maxNameLabelSize, lineBreakMode: self.nameLabel.lineBreakMode)
// new
var labelSize: CGSize = model.name.boundingRectWithSize(maxNameLabelSize, options: .UsesLineFragmentOrigin, attributes: [NSFontAttributeName: self.nameLabel.font], context: nil).size

目标c

 // adjust the label height (top align text)
 // old
CGSize labelSize = [model.name sizeWithFont:self.nameLabel.font
                      constrainedToSize:_maxNameLabelSize
                          lineBreakMode:self.nameLabel.lineBreakMode];
 // new
CGSize labelSize = [model.name boundingRectWithSize:_maxNameLabelSize
                                        options:NSStringDrawingUsesLineFragmentOrigin
                                     attributes:@{NSFontAttributeName: self.nameLabel.font}
                                        context:nil].size;