在iOS 7中因过时的sizeWithFont的替换而丢失：

Question

I have a warning that sizeWithFont: is deprecated, i have try to replace it to sizeWithAttributes: but everything i try is not working.

The code is supposed to tell me the expected size of a UILabel and the cCell is the cell and the label fro the IB.

Thanks for all your help.

CGSize maximumLabelSize = CGSizeMake(210, FLT_MAX);

expectedLabelSize = [labelText sizeWithFont:cCell.lblHotelResponse.font constrainedToSize:maximumLabelSize lineBreakMode:cCell.lblHotelResponse.lineBreakMode];

Answer 1

You need to use sizeWithAttributes: instead.

NSDictionary *attributeDict = @{NSFontAttributeName:cCell.lblHotelResponse.font};
CGSize expectedLabelSize    = [labelText sizeWithAttributes:attributeDict];

Another way is:

NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:labelText attributes:@{NSFontAttributeName: cCell.lblHotelResponse.font}];
CGRect rect                          = [attributedString boundingRectWithSize:maximumLabelSize options:NSStringDrawingUsesLineFragmentOrigin context:nil];
CGSize labelSize                     = rect.size;

References:

1. sizeWithAttributes:
2. boundingRectWithSize:options:attributes: