mirror of
https://github.com/ialley-workshop-open/uni-halo.git
synced 2026-09-12 16:40:40 +08:00
小莫唐尼
229 lines
8.6 KiB
Markdown
229 lines
8.6 KiB
Markdown
# scroll-view
|
||
|
||
## Instructions
|
||
|
||
可滚动视图区域。用于区域滚动。
|
||
|
||
需注意在webview渲染的页面中，区域滚动的性能不及页面滚动。
|
||
|
||
使用竖向滚动时，需要给 <scroll-view> 一个固定高度，通过 css 设置 height；使用横向滚动时，需要给 <scroll-view> 添加 white-space: nowrap; 样式。
|
||
|
||
### Syntax
|
||
|
||
- 使用 `<scroll-view />`（或 `<scroll-view></scroll-view>`，当需要包裹子节点时）。
|
||
- 遇到平台差异时，建议使用条件编译（`#ifdef / #endif`）显式处理。
|
||
|
||
#### Properties
|
||
|
||
| 属性名 | 类型 | 默认值 | 说明 | 平台差异说明 |
|
||
| --- | --- | --- | --- | --- |
|
||
| scroll-x | Boolean | false | 允许横向滚动 | |
|
||
| scroll-y | Boolean | false | 允许纵向滚动 | |
|
||
| upper-threshold | Number/String | 50 | 距顶部/左边多远时（单位px），触发 scrolltoupper 事件 | |
|
||
| lower-threshold | Number/String | 50 | 距底部/右边多远时（单位px），触发 scrolltolower 事件 | |
|
||
| scroll-top | Number/String | | 设置竖向滚动条位置 | |
|
||
| scroll-left | Number/String | | 设置横向滚动条位置 | |
|
||
| scroll-into-view | String | | 值应为某子元素id（id不能以数字开头）。设置哪个方向可滚动，则在哪个方向滚动到该元素 | |
|
||
| scroll-with-animation | Boolean | false | 在设置滚动条位置时使用动画过渡 | |
|
||
| enable-back-to-top | Boolean | false | iOS点击顶部状态栏、安卓双击标题栏时，滚动条返回顶部，只支持竖向 | app-nvue，微信小程序 |
|
||
| show-scrollbar | Boolean | true | 控制是否出现滚动条 | App-nvue 2.1.5+ |
|
||
| refresher-enabled | Boolean | false | 开启自定义下拉刷新 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| refresher-threshold | Number | 45 | 设置自定义下拉刷新阈值 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| refresher-default-style | String | "black" | 设置自定义下拉刷新默认样式，支持设置 black，white，none，none 表示不使用默认样式 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| refresher-background | String | "#FFF" | 设置自定义下拉刷新区域背景颜色 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| refresher-triggered | Boolean | false | 设置当前下拉刷新状态，true 表示下拉刷新已经被触发，false 表示下拉刷新未被触发 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| enable-flex | Boolean | false | 启用 flexbox 布局。开启后，当前节点声明了 display: flex 就会成为 flex container，并作用于其孩子节点。 | 微信小程序 2.7.3、小红书小程序 |
|
||
| scroll-anchoring | Boolean | false | 开启 scroll anchoring 特性，即控制滚动位置不随内容变化而抖动，仅在 iOS 下生效，安卓下可参考 CSS overflow-anchor 属性。 | 微信小程序 2.8.2 |
|
||
|
||
#### Events
|
||
|
||
| 事件名 | 类型 | 默认值 | 说明 | 平台差异说明 |
|
||
| --- | --- | --- | --- | --- |
|
||
| @scrolltoupper | EventHandle | | 滚动到顶部/左边，会触发 scrolltoupper 事件 | |
|
||
| @scrolltolower | EventHandle | | 滚动到底部/右边，会触发 scrolltolower 事件 | |
|
||
| @scroll | EventHandle | | 滚动时触发，event.detail = {scrollLeft, scrollTop, scrollHeight, scrollWidth, deltaX, deltaY} | |
|
||
| @refresherpulling | EventHandle | | 自定义下拉刷新控件被下拉 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| @refresherrefresh | EventHandle | | 自定义下拉刷新被触发 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| @refresherrestore | EventHandle | | 自定义下拉刷新被复位 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+、小红书小程序 |
|
||
| @refresherabort | EventHandle | | 自定义下拉刷新被中止 | H5、app-vue 2.5.12+,微信小程序基础库2.10.1+ |
|
||
|
||
#### Platform Compatibility
|
||
|
||
See official docs for platform support table: `https://uniapp.dcloud.net.cn/component/scroll-view.html`
|
||
|
||
### Examples
|
||
|
||
### Example (Example 1)
|
||
|
||
```vue
|
||
<!-- 本示例未包含完整css，获取外链css请参考上文，在hello uni-app项目中查看 -->
|
||
<template>
|
||
<view>
|
||
<view class="uni-padding-wrap uni-common-mt">
|
||
<view class="uni-title uni-common-mt">
|
||
Vertical Scroll
|
||
<text>\n纵向滚动</text>
|
||
</view>
|
||
<view>
|
||
<scroll-view :scroll-top="scrollTop" scroll-y="true" class="scroll-Y" @scrolltoupper="upper"
|
||
@scrolltolower="lower" @scroll="scroll">
|
||
<view id="demo1" class="scroll-view-item uni-bg-red">A</view>
|
||
<view id="demo2" class="scroll-view-item uni-bg-green">B</view>
|
||
<view id="demo3" class="scroll-view-item uni-bg-blue">C</view>
|
||
</scroll-view>
|
||
</view>
|
||
<view @tap="goTop" class="uni-link uni-center uni-common-mt">
|
||
点击这里返回顶部
|
||
</view>
|
||
|
||
<view class="uni-title uni-common-mt">
|
||
Horizontal Scroll
|
||
<text>\n横向滚动</text>
|
||
</view>
|
||
<view>
|
||
<scroll-view class="scroll-view_H" scroll-x="true" @scroll="scroll" scroll-left="120">
|
||
<view id="demo1" class="scroll-view-item_H uni-bg-red">A</view>
|
||
<view id="demo2" class="scroll-view-item_H uni-bg-green">B</view>
|
||
<view id="demo3" class="scroll-view-item_H uni-bg-blue">C</view>
|
||
</scroll-view>
|
||
</view>
|
||
<view class="uni-common-pb"></view>
|
||
</view>
|
||
</view>
|
||
</template>
|
||
```
|
||
|
||
### Example (Example 2)
|
||
|
||
```vue
|
||
<!-- 本示例未包含完整css，获取外链css请参考上文，在hello uni-app项目中查看 -->
|
||
<template>
|
||
<view>
|
||
<view class="uni-padding-wrap uni-common-mt">
|
||
<view class="uni-title uni-common-mt">
|
||
Vertical Scroll
|
||
<text>\n纵向滚动</text>
|
||
</view>
|
||
<view>
|
||
<scroll-view :scroll-top="scrollTop" scroll-y="true" class="scroll-Y" @scrolltoupper="upper"
|
||
@scrolltolower="lower" @scroll="scroll">
|
||
<view id="demo1" class="scroll-view-item uni-bg-red">A</view>
|
||
<view id="demo2" class="scroll-view-item uni-bg-green">B</view>
|
||
<view id="demo3" class="scroll-view-item uni-bg-blue">C</view>
|
||
</scroll-view>
|
||
</view>
|
||
<view @tap="goTop" class="uni-link uni-center uni-common-mt">
|
||
点击这里返回顶部
|
||
</view>
|
||
|
||
<view class="uni-title uni-common-mt">
|
||
Horizontal Scroll
|
||
<text>\n横向滚动</text>
|
||
</view>
|
||
<view>
|
||
<scroll-view class="scroll-view_H" scroll-x="true" @scroll="scroll" scroll-left="120">
|
||
<view id="demo1" class="scroll-view-item_H uni-bg-red">A</view>
|
||
<view id="demo2" class="scroll-view-item_H uni-bg-green">B</view>
|
||
<view id="demo3" class="scroll-view-item_H uni-bg-blue">C</view>
|
||
</scroll-view>
|
||
</view>
|
||
<view class="uni-common-pb"></view>
|
||
</view>
|
||
</view>
|
||
</template>
|
||
```
|
||
|
||
### Example (Example 3)
|
||
|
||
```vue
|
||
<script>
|
||
export default {
|
||
data() {
|
||
return {
|
||
scrollTop: 0,
|
||
old: {
|
||
scrollTop: 0
|
||
}
|
||
}
|
||
},
|
||
methods: {
|
||
upper: function(e) {
|
||
console.log(e)
|
||
},
|
||
lower: function(e) {
|
||
console.log(e)
|
||
},
|
||
scroll: function(e) {
|
||
console.log(e)
|
||
this.old.scrollTop = e.detail.scrollTop
|
||
},
|
||
goTop: function(e) {
|
||
// 解决view层不同步的问题
|
||
this.scrollTop = this.old.scrollTop
|
||
this.$nextTick(function() {
|
||
this.scrollTop = 0
|
||
});
|
||
uni.showToast({
|
||
icon: "none",
|
||
title: "纵向滚动 scrollTop 值已被修改为 0"
|
||
})
|
||
}
|
||
}
|
||
}
|
||
</script>
|
||
```
|
||
|
||
### Example (Example 4)
|
||
|
||
```vue
|
||
<style>
|
||
.scroll-Y {
|
||
height: 300rpx;
|
||
}
|
||
.scroll-view_H {
|
||
white-space: nowrap;
|
||
width: 100%;
|
||
}
|
||
.scroll-view-item {
|
||
height: 300rpx;
|
||
line-height: 300rpx;
|
||
text-align: center;
|
||
font-size: 36rpx;
|
||
}
|
||
.scroll-view-item_H {
|
||
display: inline-block;
|
||
width: 100%;
|
||
height: 300rpx;
|
||
line-height: 300rpx;
|
||
text-align: center;
|
||
font-size: 36rpx;
|
||
}
|
||
</style>
|
||
```
|
||
|
||
### Example (Example 5)
|
||
|
||
```vue
|
||
<template>
|
||
<view>
|
||
<scroll-view style="height: 300px;" scroll-y="true" refresher-enabled="true" :refresher-triggered="triggered"
|
||
:refresher-threshold="100" refresher-background="lightgreen" @refresherpulling="onPulling"
|
||
@refresherrefresh="onRefresh" @refresherrestore="onRestore" @refresherabort="onAbort"></scroll-view>
|
||
</view>
|
||
</template>
|
||
```
|
||
|
||
### Example (Example 6)
|
||
|
||
```vue
|
||
<template>
|
||
<view>
|
||
<scroll-view style="height: 300px;" scroll-y="true" refresher-enabled="true" :refresher-triggered="triggered"
|
||
:refresher-threshold="100" refresher-background="lightgreen" @refresherpulling="onPulling"
|
||
@refresherrefresh="onRefresh" @refresherrestore="onRestore" @refresherabort="onAbort"></scroll-view>
|
||
</view>
|
||
</template>
|
||
```
|
||
|
||
Reference: [Official Documentation](https://uniapp.dcloud.net.cn/component/scroll-view.html)
|