Shopify模版定制: Liquid 实现幻灯片功能 上下滚动轮播

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在 sections 下创建 aaaaaaaaaa.liquid

{%- liquid# 变量assign _settings = section.settings# 幻灯片高度assign slideHeight = _settings.height_slide | default: 30# size: 幻灯片数量assign size = section.blocks.size# 动画名称assign animation_name = 'css_slideshow_' | append: section.id## 核心代码 ### | 1: delay + speed | 2: delay + speed | ... | n: delay + speed | # 计算时间# 自动切换的时间间隔，单位msassign delay = _settings.delay | default: 3000 # 切换速度，即slider自动滑动开始到结束的时间（单位ms），也是触摸滑动时释放至贴合的时间。assign speed = _settings.speed | default: 300# 每个item的占有时间assign slide_time = delay | plus: speed# 总时长assign total_time = slide_time | times: size# 动画过程如下如下# ｜1: 等待切换过程 切换过程 ｜2: 等待切换过程 切换过程 ｜...｜n: 等待切换过程 切换过程 ｜# 计算每个过程占比，总过程为 100%# 单个幻灯片的占有时间占总时间的比例（等待切换过程+切换过程），精确到0.0001，单位：%# = 单个幻灯片时长 / 总时长 * 100assign slide_zb = slide_time | times: 1000000 | divided_by: total_time | times: 0.0001# 单个幻灯片的等待切换过程占总时间的比例，精确到0.0001，单位：%# = 单个幻灯片等待切换时长 / 总时长 * 100assign delay_zb = delay | times: 1000000 | divided_by: total_time | times: 0.0001# 单个幻灯片的切换过程占总时间的比例，精确到0.0001，单位：%# = 单个幻灯片切换时长 / 总时长 * 100# assign speed_zb = speed | times: 1000000 | divided_by: item_time | times: 0.0001
-%}
{%- style -%}#shopify-section-{{ section.id }} {background: {{ _settings.color_section_bg }};color: {{ _settings.color_section }};margin: {{ _settings.margin_section }};text-align: {{ _settings.align_section }};--css-slide-height: {{ slideHeight }}px;}/* 创建动画 */@keyframes {{ animation_name }} {{%- for i in (0..size) -%}{%- liquid# 示例：假设高度为 30 过程应该, i = n - 1# | 1: b1: -0 b2: -0 b3: -30 | 2: b1: -30 b2: -30 b3: -60 | ... | n: b1: -30 * (n-1) b2: -30 * (n-1) b3: -30 * n | # 这里我们可以对上面过程进行简化，因为 b3 = 下一个幻灯片的b1, 所以可以忽略b3。但是需要注意 最后一个幻灯片需要添加 b3，且必须为100%, 这里为了最后一个b2 不是100%，则会出现过渡过程（倒退）。简化后解结果如下# | 1: b1: -0 b2: -0 | 2: b1: -30 b2: -30 | ... | n: b1: -30 * (n-1) b2: -30 * (n-1) b3: 100% | # b1: 等待切换assign b1 = i | times: slide_zb# b2: 开始切换assign b2 = b1 | plus: delay_zb# translateY 偏移量, 注意 此时的 Y 为正数assign Y = i | times: slideHeight# 通过公式我们可以得出下面的写法-%}{%- if forloop.last %}100% { transform: translateY(-{{ Y }}px); }{%- else %}{{ b1 }}% { transform: translateY(-{{ Y }}px); }{{ b2 }}% { transform: translateY(-{{ Y }}px); } {% endif -%}{%- endfor -%}}#shopify-section-{{ section.id }} .yl-css-slides {animation: {{ animation_name }} {{ total_time }}ms linear infinite;}{%- endstyle -%}
<div class="yl-container"><div class="yl-css-slideshow"><ul class="yl-css-slides">{%- for block in section.blocks -%}<li class="yl-css-slide" {{ block.shopify_attributes }}><div>{%- if block.settings.url -%}<a href="{{ block.settings.url }}">{{ block.settings.text }}</a>{%- else -%}{{ block.settings.text }}{%- endif -%}</div></li>{%- endfor -%}{%- assign block_first = section.blocks.first -%}<li class="yl-css-slide" {{ block_first.shopify_attributes }}><div>{%- if block.settings.url -%}<a href="{{ block.settings.url }}">{{ block.settings.text }}</a>{%- else -%}{{ block.settings.text }}{%- endif -%}</div></li></ul></div>
</div>
{% schema %}
{"name": "壹零公告栏 01","class": "section-yl-announcement-bar-01","settings": [{"type": "number","id": "delay","label": "切换时间间隔，单位ms","default": 3000},{"type": "number","id": "speed","label": "过渡时间，单位ms","default": 300},{"type": "number","id": "height_slide","label": "幻灯片高度, 单位：像素","default": 30},{"type": "select","id": "align_section","label": "对齐方式","options": [{"value": "center","label": "居中"},{"value": "left","label": "左对齐"},{"value": "right","label": "右对齐"}],"default": "center"},{"type": "color_background","id": "color_section_bg","label": "分区背景颜色","default": "linear-gradient(#000, #000)"},{"type": "color","id": "color_section","label": "分区文案颜色","default": "#fff"},{"type": "text","id": "margin_section","label": "分区边界","default": "80px 0"}],"blocks": [{"type": "slide","name": "幻灯片","settings": [{"type": "text","id": "text","label": "文案","default": "壹零建站，让您的网站更优秀！"},{"type": "url","id": "url","label": "链接"}]}],"presets": [{"category": "公告栏","name": "公告栏 01","blocks": [{"type": "slide","settings": {"text": "壹零建站，让您的网站更优秀！"}},{"type": "slide","settings": {"text": "https://www.yilingweb.com","url": "https://www.yilingweb.com"}},{"type": "slide","settings": {"text": "VX: abc939039210"}}]}]
}
{% endschema %}

二、创建CSS
创建文件
在 assets 下创建 aaaaaaaaaa.css

写入代码

.yl-css-slideshow {height: var(--css-slide-height);overflow: hidden;
}
.yl-css-slideshow:hover .yl-css-slides {/* 悬停时暂停动画 */animation-play-state:paused !important;-webkit-animation-play-state:paused !important;
}
.yl-css-slide {height: var(--css-slide-height);line-height: var(--css-slide-height);
}

引入文件
在 theme.liquid 与 之间插入下面代码

{{ 'yl-announcement-bar-01.css' | asset_url | stylesheet_tag }}

后台效果：

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