UILabel关于支持HTML格式 自动换行 行间距的封装

在APP开发中,会经常出现大段的文字,为了排版的好看需要进行排版,现在封装了两个方法,分别输入字符串,字体,字体颜色,行间距和控件的大小,即可返回一个UILabel,支持自动折行,第一个方法输入的是普通的字符串,第二个方法输入的是HTML字符串.代码如下:

/* 普通字符串 */

- (UILabel *)returnLineSpacingLabelWithText:(NSString *)text font:(UIFont *)font textColor:(UIColor *)textColor lineSpace:(float)lineSpace
frame:(CGRect)frame

{

    UILabel *label = [[UILabel
alloc] initWithFrame:frame];

    label.font = font;

    label.textColor = textColor;

    label.textAlignment =
NSTextAlignmentCenter;

    NSMutableAttributedString *attributedString = [[NSMutableAttributedString
alloc]
initWithString:text];

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

    [paragraphStyle setLineSpacing:lineSpace];

    [attributedString addAttribute:NSParagraphStyleAttributeName
value:paragraphStyle
range:NSMakeRange(0, [text
length])];

    label.attributedText = attributedString;

    label.numberOfLines =
0;

    [label sizeToFit];

    

    return label;

}

/* HTML字符串 */

- (UILabel *)returnLineSpacingLabelWithHtmlText:(NSString *)text font:(UIFont *)font textColor:(UIColor *)textColor lineSpace:(float)lineSpace
frame:(CGRect)frame

{

    UILabel *label = [[UILabel
alloc] initWithFrame:frame];

    NSMutableAttributedString *attrStr = [[NSMutableAttributedString
alloc] initWithData:[text
dataUsingEncoding:NSUnicodeStringEncoding]
options:@{
NSDocumentTypeDocumentAttribute:
NSHTMLTextDocumentType
} documentAttributes:nil
error:nil];

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

    [paragraphStyle setLineSpacing:lineSpace];

    [attrStr addAttribute:NSParagraphStyleAttributeName
value:paragraphStyle
range:NSMakeRange(0, [attrStr
length])];

    label.attributedText = attrStr;

    label.font = font;

    label.textColor = textColor;

    label.numberOfLines =
0;

    [label sizeToFit];

    

    return label;

}