计算UILabel的高度
//计算文本高度 NSString *lltxt =[[NSString alloc]initWithFormat:@"浏览:%@",[strJson objectForKey:@"visitCount"]]; NSString *xztxt =[[NSString alloc]initWithFormat:@"下载:%@",[strJson objectForKey:@"downloadCount"]]; CGSize size = [self caculatorStringSize:text andWid:DEVW-20 andfontsize:14]; textheight = size.height; 将计算高度写成一个方法,放入父类中,直接调用 -(CGSize)caculatorStringSize:(NSString *)strings andWid:(CGFloat)wid andfontsize:(CGFloat)fontsize { CGSize iszed = CGSizeMake(wid, MAXFLOAT); NSDictionary *attribute = @{NSFontAttributeName: [UIFont systemFontOfSize:fontsize]}; CGSize labelsize = [strings boundingRectWithSize:iszed options: NSStringDrawingTruncatesLastVisibleLine | NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:attribute context:nil].size; // CGSize retSize = CGSizeMake(wid, labelsize.height+20); return labelsize; }