之前使用了NSString类的sizeWithFont:constrainedToSize:lineBreakMode:方法,但是该方法已经被iOS7 Deprecated了,而iOS7新出了一个boudingRectWithSize:options:attributes:context方法来代替。
而具体怎么使用呢,尤其那个attribute
NSDictionary *attribute = @{NSFontAttributeName: [UIFont systemFontOfSize:13]};
CGSize size = [@“相关NSString” boundingRectWithSize:CGSizeMake(100, 0) options: NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:attribute context:nil].size;
(转)你直接用boundingRectWithSize
看下这个方法的描述
另外我把我这边动态获取label尺寸的代码都贴给你看看
CGSize size = CGSizeMake(320,2000); //设置一个行高上限
NSDictionary *attribute = @{NSFontAttributeName: nameLabel.font};
CGSize labelsize = [nameLabel.text boundingRectWithSize:size options: NSStringDrawingTruncatesLastVisibleLine NSStringDrawingUsesLineFragmentOrigin NSStringDrawingUsesFontLeading attributes:attribute context:nil].size;