IOS开发根据字体大小等获取文字所占的高度

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Model *model = self.modelArr[indexPath.row];

//根据label文字获取CGRect
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];
//set the line break mode
paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;

NSDictionary *attrDict = [NSDictionary dictionaryWithObjectsAndKeys:
[UIFont systemFontOfSize:15],
NSFontAttributeName,
paragraphStyle,
NSParagraphStyleAttributeName,
nil];


//assume your maximumSize contains {250, MAXFLOAT}
CGRect lblRect = [model.text boundingRectWithSize:(CGSize){ScreenWidth - 20, MAXFLOAT}
options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading
attributes:attrDict
context:nil];

IOS开发根据字体大小等获取文字所占的高度

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原文地址：http://www.cnblogs.com/jiwangbujiu/p/5498825.html