富文本显示
- yylabel中不能使用NSTextAttachment来处理富文本
正确方案
UIImageView *imageV = [[UIImageView alloc] init];
imageV.frame = CGRectMake(0, -2, 15, 15);
imageV.image = emojiImage;
NSAttributedString *imageString = [NSAttributedString yy_attachmentStringWithContent:imageV contentMode:UIViewContentModeScaleAspectFit attachmentSize:CGSizeMake(15, 15) alignToFont:_contentL.font alignment:YYTextVerticalAlignmentCenter];
_contentL.attributedText = imageString;
或者
UIImage *image = [UIImage imageNamed:@"壁纸-详情-编辑"];
NSMutableAttributedString *attachment = [NSMutableAttributedString yy_attachmentStringWithContent:image contentMode:UIViewContentModeCenter attachmentSize:CGSizeMake(15, 15) alignToFont:SYS_Font(15) alignment:(YYTextVerticalAlignment)YYTextVerticalAlignmentCenter];
展开更多
/// 调用
[self addSeeMoreWithYYLabel:_playValL andText:playStr];
/// 具体实现
// yylable
-(YYLabel *)createYYlable {
YYLabel *yyL = [[YYLabel alloc]init];
yyL.font = SYS_Font(14);
yyL.textColor = RGB_COLOR(@"#888888", 1);
yyL.preferredMaxLayoutWidth = _window_width-32;
yyL.numberOfLines = 3;
// yyL.userInteractionEnabled = YES;
return yyL;
}
// 内容
- (void)addSeeMoreWithYYLabel:(YYLabel *)yylabel andText:(NSString *)showStr{
// 基础文本
UIFont *textFont = [UIFont systemFontOfSize:14];
NSMutableAttributedString *showAtt = [[NSMutableAttributedString alloc]initWithString:showStr];
NSRange showRange = [showAtt yy_rangeOfAll];
[showAtt addAttribute:NSForegroundColorAttributeName value:RGB_COLOR(@"#888888", 1) range:showRange];
showAtt.yy_font = textFont;
yylabel.attributedText = showAtt;
// 展开更多
UIFont *moreFont = [UIFont boldSystemFontOfSize:14];
NSMutableAttributedString *openColAttStr = [[NSMutableAttributedString alloc] initWithString:YZMsg(@"展开更多")];
[openColAttStr addAttribute:NSFontAttributeName value:moreFont range:[openColAttStr yy_rangeOfAll]];
UIImage *down_img = [UIImage imageNamed:@"creator_down"];
NSMutableAttributedString *imgAttStr = [NSMutableAttributedString yy_attachmentStringWithContent:down_img contentMode:UIViewContentModeCenter attachmentSize:CGSizeMake(12, 12) alignToFont:moreFont alignment:YYTextVerticalAlignmentCenter];
[openColAttStr appendAttributedString:imgAttStr];
// 带点
NSMutableAttributedString *moreAttStr = [[NSMutableAttributedString alloc] initWithString:@"..."];
[moreAttStr appendAttributedString:openColAttStr];
NSRange click_range = [[moreAttStr string] rangeOfString:[openColAttStr string]];
YBWeakSelf;
[moreAttStr yy_setTextHighlightRange:click_range color:RGB_COLOR(@"#333333", 1) backgroundColor:[UIColor clearColor] tapAction:^(UIView * _Nonnull containerView, NSAttributedString * _Nonnull text, NSRange range, CGRect rect) {
// 点击全文回调
[weakSelf clickHighlightRange:yylabel];
}];
moreAttStr.yy_font = moreFont;
YYLabel *seeMore = [YYLabel new];
seeMore.attributedText = moreAttStr;
[seeMore sizeToFit];
NSAttributedString *truncationToken = [NSAttributedString yy_attachmentStringWithContent:seeMore contentMode:UIViewContentModeCenter attachmentSize:seeMore.frame.size alignToFont:moreFont alignment:YYTextVerticalAlignmentCenter];
yylabel.truncationToken = truncationToken;
}
// 点击事件
-(void)clickHighlightRange:(YYLabel *)yylabel {
YYLabel *label = yylabel;
label.numberOfLines = 0;
[label sizeToFit];
// contentSize
[_contentView layoutIfNeeded];
CGFloat contentH = CGRectGetHeight(_contentView.frame) + 16;
_scrollView.contentSize = CGSizeMake(0, contentH);
}
