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title description spline isComponent
BackTop 返回顶部 用于当页面过长往下滑动时,帮助用户快速回到页面顶部。 navigation true

引入

全局引入,在 miniprogram 根目录下的app.json中配置,局部引入,在需要引入的页面或组件的index.json中配置。

"usingComponents": {
"t-back-top": "tdesign-miniprogram/back-top/back-top",
}

代码演示

基础返回顶部

{{ base }}

API

BackTop Props

名称 类型 默认值 说明 必传
external-classes Array - 组件类名,分别用于设置外层元素、图标、文本内容等元素类名。['t-class', 't-class-icon', 't-class-text'] N
fixed Boolean true 是否绝对定位固定到屏幕右下方 N
icon String / Boolean / Object / Slot true 图标。值为 false 表示不显示图标。不传表示使用默认图标 'backtop' N
text String '' 文案 N
theme String round 预设的样式类型。可选项round/half-round/round-dark/half-round-dark N

BackTop Events

名称 参数 描述
to-top - 点击触发