iOS 动态计算label高度

2016.12.7

NSString*text = [self.dataArrobjectAtIndex:indexPath.section];

CGFloatwidth =SCREEN_WIDTH-30;//距左右各15

UIFont*font = [UIFontsystemFontOfSize:12];

NSMutableAttributedString*attibutesString = [[NSMutableAttributedStringalloc]initWithString:text];

NSMutableParagraphStyle*paraghStyle =[[NSMutableParagraphStylealloc]init];

[paraghStylesetLineSpacing:10];

[attibutesStringaddAttribute:NSParagraphStyleAttributeNamevalue:paraghStylerange:NSMakeRange(0, text.length)];

//    _labelText.attributedText = attibutesString;

//在这传进去字体和行距

NSDictionary*attribute =@{NSFontAttributeName:font,NSParagraphStyleAttributeName:paraghStyle};

CGSizesize = [textboundingRectWithSize:CGSizeMake(width,MAXFLOAT)options:NSStringDrawingUsesLineFragmentOriginattributes:attributecontext:nil].size;

returnsize.height+30;

//返回高度