ios 自适应高度

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正常

+ (CGFloat)getLabelHightWithtextSize:(CGFloat)textFont labelWidth:(CGFloat)labelWidth labelText:(NSString *)labelText
{
// 高度随便写, 要求尽量写大一点
CGSize size = CGSizeMake(labelWidth, 20000);
// 字典里, 传入字号的大小
NSDictionary *dic = [NSDictionary dictionaryWithObject:[UIFont systemFontOfSize:textFont] forKey:NSFontAttributeName];
CGRect frame = [labelText boundingRectWithSize:size options:NSStringDrawingUsesLineFragmentOrigin attributes:dic context:nil];

return frame.size.height;
}

带格式的字符串

+ (CGFloat)heightWithContent:(NSString *)content

{

NSMutableParagraphStyle* style = [[NSMutableParagraphStylealloc] init];

style.lineSpacing =3;

style.paragraphSpacing =5;

NSAttributedString* string = [[NSAttributedStringalloc] initWithString:content?:@""attributes:@{NSParagraphStyleAttributeName:style,NSFontAttributeName:[UIFontsystemFontOfSize:13]}];

CGSize size =CGSizeMake(CGRectGetWidth([UIScreenmainScreen].bounds) -30, 1000);

size = [string boundingRectWithSize:sizeoptions:NSStringDrawingUsesLineFragmentOrigin |NSStringDrawingUsesFontLeading context:nil].size;

return size.height + 37.5;

}

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