带有行间距文字的label 取高度

#define RowSpacing 5

#define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height

//给UILabel设置行间距和字间距

-(void)setLabelSpace:(UILabel*)label withValue:(NSString*)str withFont:(UIFont*)font {

NSMutableParagraphStyle*paraStyle = [[NSMutableParagraphStyle alloc] init];

paraStyle.lineBreakMode=NSLineBreakByCharWrapping;

paraStyle.alignment=NSTextAlignmentLeft;

paraStyle.lineSpacing= RowSpacing; //设置行间距

paraStyle.hyphenationFactor=1.0;

paraStyle.firstLineHeadIndent=0.0;

paraStyle.paragraphSpacingBefore=0.0;

paraStyle.headIndent=0;

paraStyle.tailIndent=0;

//设置字间距NSKernAttributeName:@1.5f

NSDictionary*dic =@{NSFontAttributeName:font, NSParagraphStyleAttributeName:paraStyle, NSKernAttributeName:@1.5f

};

NSAttributedString*attributeStr = [[NSAttributedStringalloc]initWithString:strattributes:dic];

label.attributedText= attributeStr;

}

//计算UILabel的高度(带有行间距的情况)

- (CGFloat)getSpaceLabelHeight:(NSString*)str withFont:(UIFont*)font withWidth:(CGFloat)width {

NSMutableParagraphStyle*paraStyle = [[NSMutableParagraphStyle alloc] init];

paraStyle.lineBreakMode=NSLineBreakByCharWrapping;

paraStyle.alignment=NSTextAlignmentLeft;

paraStyle.lineSpacing=RowSpacing;

paraStyle.hyphenationFactor=1.0;

paraStyle.firstLineHeadIndent=0.0;

paraStyle.paragraphSpacingBefore=0.0;

paraStyle.headIndent=0;

paraStyle.tailIndent=0;

NSDictionary*dic =@{NSFontAttributeName:font,NSParagraphStyleAttributeName:paraStyle,NSKernAttributeName:@1.5f

};

CGSize size = [str boundingRectWithSize:CGSizeMake(width,SCREEN_HEIGHT)options:NSStringDrawingUsesLineFragmentOriginattributes:diccontext:nil].size;

returnsize.height;

}