
简体中文
组件类型:UniListViewElement
列表组件
list-view和scroll-view都是滚动组件,list适用于长列表场景,其他场景适用于scroll-view。
在App中,基于recycle-view的list,才能实现长列表的渲染资源复用,以保障列表加载很多项目时,不会一直增加渲染内容。list-view就是基于recycle-view的list组件。
每个list由1个父组件list-view及若干子组件list-item构成。仅有有限子组件可识别,见下
Web | 微信小程序 | Android | iOS | HarmonyOS |
---|---|---|---|---|
4.02 | 4.41 | 3.9 | 4.11 | 4.61 |
目前微信小程序下,list-view被编译为scroll-view。目前uni-app x还未优化skyline的配置,未来会把list-view编译为skyline的list-view。
名称 | 类型 | 默认值 | 兼容性 | 描述 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
direction | string | "vertical" | 滚动方向,可取值 none、horizontal、vertical,默认值vertical。注:iOS 平台仅支持vertical | |||||||||||||
| ||||||||||||||||
associative-container | string | "" | 关联的滚动容器 | |||||||||||||
| ||||||||||||||||
bounces | boolean | true | 控制是否回弹效果 优先级高于rebound | |||||||||||||
upper-threshold | number | 50 | 距顶部/左边多远时(单位px),触发 scrolltoupper 事件 | |||||||||||||
lower-threshold | number | 50 | 距底部/右边多远时(单位px),触发 scrolltolower 事件 | |||||||||||||
scroll-top | number | 0 | 设置竖向滚动条位置 | |||||||||||||
scroll-left | number | 0 | 设置横向滚动条位置 | |||||||||||||
show-scrollbar | boolean | true | 控制是否出现滚动条 | |||||||||||||
scroll-into-view | string(string.IDString) | - | 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起始位置 | |||||||||||||
scroll-with-animation | boolean | false | 是否在设置滚动条位置时使用滚动动画,设置false没有滚动动画 | |||||||||||||
refresher-enabled | boolean | false | 开启下拉刷新,暂时不支持scroll-x = true横向刷新 | |||||||||||||
refresher-threshold | number | 45 | 设置下拉刷新阈值, 仅 refresher-default-style = 'none' 自定义样式下生效 | |||||||||||||
refresher-max-drag-distance | number | - | 设置下拉最大拖拽距离(单位px),默认是下拉刷新控件高度的2.5倍 | |||||||||||||
refresher-default-style | string | "black" | 设置下拉刷新默认样式,支持设置 black | white | none, none 表示不使用默认样式 | |||||||||||||
| ||||||||||||||||
refresher-background | string(string.ColorString) | "transparent" | 设置下拉刷新区域背景颜色,默认透明 | |||||||||||||
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 | |||||||||||||
enable-back-to-top | boolean | false | iOS点击顶部状态栏滚动条返回顶部,只支持竖向 | |||||||||||||
custom-nested-scroll | boolean | false | 子元素是否开启嵌套滚动 将滚动事件与父元素协商处理 | |||||||||||||
@refresherpulling | (event: UniRefresherEvent) => void | - | 下拉刷新控件被下拉 | |||||||||||||
@refresherrefresh | (event: UniRefresherEvent) => void | - | 下拉刷新被触发 | |||||||||||||
@refresherrestore | (event: UniRefresherEvent) => void | - | 下拉刷新被复位 | |||||||||||||
@refresherabort | (event: UniRefresherEvent) => void | - | 下拉刷新被中止 | |||||||||||||
@scrolltoupper | (event: UniScrollToUpperEvent) => void | - | 滚动到顶部/左边,会触发 scrolltoupper 事件 | |||||||||||||
@scrolltolower | (event: UniScrollToLowerEvent) => void | - | 滚动到底部/右边,会触发 scrolltolower 事件 | |||||||||||||
@scroll | (event: UniScrollEvent) => void | - | 滚动时触发,event.detail = {scrollLeft, scrollTop, scrollHeight, scrollWidth, deltaX, deltaY} | |||||||||||||
@scrollend | (event: UniScrollEvent) => void | - | 滚动结束时触发,event.detail = {scrollLeft, scrollTop, scrollHeight, scrollWidth, deltaX, deltaY} | |||||||||||||
padding | Array | - | (Array) 长度为 4 的数组,按 top、right、bottom、left 顺序指定内边距 | |||||||||||||
boolean | true | 控制是否回弹效果。已废弃,请改用bounces | ||||||||||||||
boolean | true | 允许纵向滚动,不支持同时设置scroll-x属性为true,同时设置true时scroll-y生效。已废弃,请改用direction | ||||||||||||||
boolean | false | 允许横向滚动,不支持同时设置scroll-y属性为true,同时设置true时scroll-y生效。已废弃,请改用direction |
名称 | 类型 | 必填 | 默认值 | 兼容性 | 描述 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
detail | UniRefresherEventDetail | 是 | - | - | - | ||||||||||||
|
名称 | 类型 | 必填 | 默认值 | 兼容性 | 描述 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
detail | UniScrollToUpperEventDetail | 是 | - | - | |||||||||||||
|
名称 | 类型 | 必填 | 默认值 | 兼容性 | 描述 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
detail | UniScrollToLowerEventDetail | 是 | - | - | |||||||||||||
|
名称 | 类型 | 必填 | 默认值 | 兼容性 | 描述 | ||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
detail | UniScrollEventDetail | 是 | - | - | |||||||||||||||||||||||||||||||||||||||||||
|
list-view组件有默认的下拉刷新样式,如果想自定义,则需使用自定义下拉刷新。
refresher-default-style
属性为 none 不使用默认样式slot="refresher"
,需要设置刷新元素宽高信息否则可能无法正常显示!<template>
<list-view refresher-default-style="none" :refresher-enabled="true" :refresher-triggered="refresherTriggered"
@refresherpulling="onRefresherpulling" @refresherrefresh="onRefresherrefresh"
@refresherrestore="onRefresherrestore" style="flex:1" >
<list-item v-for="i in 10" class="content-item">
<text class="text">item-{{i}}</text>
</list-item>
<!-- 自定义下拉刷新元素 -->
<list-item slot="refresher" class="refresh-box">
<text class="tip-text">{{text[state]}}</text>
</list-item>
</list-view>
</template>
注意:
scroll-view开启嵌套模式后,list-view 可作为内层滚动视图与外层 scroll-view 实现嵌套滚动
设置内层 list-view 的 associative-container
属性为 "nested-scroll-view",开启内层 list-view 支持与外层 scroll-view 嵌套滚动
子组件 | 兼容性 |
---|---|
list-item sticky-header sticky-section |
子组件sticky-header/section用于处理吸顶的场景。
示例为hello uni-app x alpha分支,与最新HBuilderX Alpha版同步。与最新正式版同步的master分支示例另见
示例
<script>
type ScrollEventTest = {
type : string;
target : UniElement | null;
currentTarget : UniElement | null;
direction ?: string
}
import { ItemType } from '@/components/enum-data/enum-data-types'
export default {
data() {
return {
refresher_triggered_boolean: false,
refresher_enabled_boolean: false,
scroll_with_animation_boolean: false,
show_scrollbar_boolean: false,
bounces_boolean: true,
scroll_y_boolean: true,
scroll_x_boolean: false,
scroll_direction: "vertical",
upper_threshold_input: 50,
lower_threshold_input: 50,
scroll_top_input: 0,
scroll_left_input: 0,
refresher_background_input: "#FFF",
scrollData: [] as Array<string>,
size_enum: [{ "value": 0, "name": "item---0" }, { "value": 3, "name": "item---3" }] as ItemType[],
scrollIntoView: "",
refresherrefresh: false,
refresher_default_style_input: "black",
text: ['继续下拉执行刷新', '释放立即刷新', '刷新中', ""],
state: 3,
reset: true,
// 自动化测试
isScrollTest: '',
isScrolltolowerTest: '',
isScrolltoupperTest: '',
scrollDetailTest: null as UniScrollEventDetail | null,
scrollEndDetailTest: null as UniScrollEventDetail | null,
}
},
onLoad() {
let lists : Array<string> = []
for (let i = 0; i < 10; i++) {
lists.push("item---" + i)
}
this.scrollData = lists
},
methods: {
list_view_click() { console.log("组件被点击时触发") },
list_view_touchstart() { console.log("手指触摸动作开始") },
list_view_touchmove() { console.log("手指触摸后移动") },
list_view_touchcancel() { console.log("手指触摸动作被打断,如来电提醒,弹窗") },
list_view_touchend() { console.log("手指触摸动作结束") },
list_view_tap() { console.log("手指触摸后马上离开") },
list_view_longpress() { console.log("如果一个组件被绑定了 longpress 事件,那么当用户长按这个组件时,该事件将会被触发。") },
list_view_refresherpulling(e : RefresherEvent) {
console.log("下拉刷新控件被下拉")
if (this.reset) {
if (e.detail.dy > 45) {
this.state = 1
} else {
this.state = 0
}
}
},
list_view_refresherrefresh() {
console.log("下拉刷新被触发 ")
this.refresherrefresh = true
this.refresher_triggered_boolean = true
this.state = 2
this.reset = false;
setTimeout(() => {
this.refresher_triggered_boolean = false
}, 1500)
},
list_view_refresherrestore() {
this.refresherrefresh = false
this.state = 3
this.reset = true
console.log("下拉刷新被复位")
},
list_view_refresherabort() { console.log("下拉刷新被中止") },
list_view_scrolltoupper(e : UniScrollToUpperEvent) {
console.log("滚动到顶部/左边,会触发 scrolltoupper 事件 direction=" + e.detail.direction)
this.checkEventTest({
type: e.type,
target: e.target,
currentTarget: e.currentTarget,
direction: e.detail.direction,
} as ScrollEventTest, 'scrolltoupper')
},
list_view_scrolltolower(e : UniScrollToLowerEvent) {
console.log("滚动到底部/右边,会触发 scrolltolower 事件 direction=" + e.detail.direction)
this.checkEventTest({
type: e.type,
target: e.target,
currentTarget: e.currentTarget,
direction: e.detail.direction,
} as ScrollEventTest, 'scrolltolower')
},
list_view_scroll(e : UniScrollEvent) {
console.log("滚动时触发,event.detail = {scrollLeft, scrollTop, scrollHeight, scrollWidth, deltaX, deltaY}")
this.scrollDetailTest = e.detail
this.checkEventTest({
type: e.type,
target: e.target,
currentTarget: e.currentTarget
} as ScrollEventTest, 'scroll')
},
list_view_scrollend(e : UniScrollEvent) {
console.log("滚动结束时触发", e.detail)
this.scrollEndDetailTest = e.detail
this.checkEventTest({
type: e.type,
target: e.target,
currentTarget: e.currentTarget
} as ScrollEventTest, 'scrollend')
},
list_item_click() { console.log("list-item组件被点击时触发") },
list_item_touchstart() { console.log("手指触摸list-item组件动作开始") },
list_item_touchmove() { console.log("手指触摸list-item组件后移动") },
list_item_touchcancel() { console.log("手指触摸list-item组件动作被打断,如来电提醒,弹窗") },
list_item_touchend() { console.log("手指触摸list-item组件动作结束") },
list_item_tap() { console.log("手指触摸list-item组件后马上离开") },
list_item_longpress() { console.log("list-item组件被绑定了 longpress 事件,那么当用户长按这个组件时,该事件将会被触发。") },
change_refresher_triggered_boolean(checked : boolean) { this.refresher_triggered_boolean = checked },
change_refresher_enabled_boolean(checked : boolean) { this.refresher_enabled_boolean = checked },
change_scroll_with_animation_boolean(checked : boolean) { this.scroll_with_animation_boolean = checked },
change_show_scrollbar_boolean(checked : boolean) { this.show_scrollbar_boolean = checked },
change_bounces_boolean(checked : boolean) { this.bounces_boolean = checked },
change_scroll_y_boolean(checked : boolean) {
this.scroll_y_boolean = checked
this.change_scroll_direction()
},
change_scroll_x_boolean(checked : boolean) {
this.scroll_x_boolean = checked
this.change_scroll_direction()
},
change_scroll_direction() {
if (this.scroll_y_boolean && this.scroll_x_boolean || this.scroll_y_boolean) {
this.scroll_direction = "vertical"
} else if (!this.scroll_y_boolean && !this.scroll_x_boolean) {
this.scroll_direction = "none"
} else if (!this.scroll_y_boolean && this.scroll_x_boolean) {
this.scroll_direction = "horizontal"
}
},
confirm_upper_threshold_input(value : number) { this.upper_threshold_input = value },
confirm_lower_threshold_input(value : number) { this.lower_threshold_input = value },
confirm_scroll_top_input(value : number) { this.scroll_top_input = value },
confirm_scroll_left_input(value : number) { this.scroll_left_input = value },
confirm_refresher_background_input(value : string) { this.refresher_background_input = value },
item_change_size_enum(index : number) { this.scrollIntoView = "item---" + index },
//自动化测试专用
setScrollIntoView(id : string) { this.scrollIntoView = id },
// 自动化测试专用(由于事件event参数对象中存在循环引用,在ios端JSON.stringify报错,自动化测试无法page.data获取)
checkEventTest(e : ScrollEventTest, eventName : String) {
const isPass = e.type === eventName && e.target instanceof UniElement && e.currentTarget instanceof UniElement;
const result = isPass ? `${eventName}:Success` : `${eventName}:Fail`;
switch (eventName) {
case 'scroll':
this.isScrollTest = result
break;
case 'scrolltolower':
this.isScrolltolowerTest = result + `-${e.direction}`
break;
case 'scrolltoupper':
this.isScrolltoupperTest = result + `-${e.direction}`
break;
default:
break;
}
},
//自动化测试例专用
check_scroll_height() : Boolean {
var listElement = this.$refs["listview"] as UniElement
console.log("check_scroll_height--" + listElement.scrollHeight)
if (listElement.scrollHeight > 2000) {
return true
}
return false
},
//自动化测试例专用
check_scroll_width() : Boolean {
var listElement = this.$refs["listview"] as UniElement
console.log("check_scroll_width" + listElement.scrollWidth)
if (listElement.scrollWidth > 2000) {
return true
}
return false
},
change_refresher_style_boolean(checked : boolean) {
if (checked) {
this.refresher_default_style_input = "none"
} else {
this.refresher_default_style_input = "black"
}
}
}
}
</script>
<template>
<view class="main">
<list-view :direction="scroll_direction" :bounces="bounces_boolean" :upper-threshold="upper_threshold_input"
:lower-threshold="lower_threshold_input" :scroll-top="scroll_top_input" :scroll-left="scroll_left_input"
:show-scrollbar="show_scrollbar_boolean" :scroll-into-view="scrollIntoView"
:scroll-with-animation="scroll_with_animation_boolean" :refresher-enabled="refresher_enabled_boolean"
:refresher-background="refresher_background_input" :refresher-triggered="refresher_triggered_boolean"
:refresher-default-style="refresher_default_style_input" @click="list_view_click"
@touchstart="list_view_touchstart" @touchmove="list_view_touchmove" @touchcancel="list_view_touchcancel"
@touchend="list_view_touchend" @tap="list_view_tap" @longpress="list_view_longpress"
@refresherpulling="list_view_refresherpulling" @refresherrefresh="list_view_refresherrefresh"
@refresherrestore="list_view_refresherrestore" @refresherabort="list_view_refresherabort"
@scrolltoupper="list_view_scrolltoupper" ref="listview" @scrolltolower="list_view_scrolltolower"
@scroll="list_view_scroll" @scrollend="list_view_scrollend" style="width:100%;" id="listview">
<list-item v-for="key in scrollData" :key="key" :id="key" @click="list_item_click"
@touchstart="list_item_touchstart" @touchmove="list_item_touchmove" @touchcancel="list_item_touchcancel"
@touchend="list_item_touchend" @tap="list_item_tap" @longpress="list_item_longpress" class="list-item">
<text>{{key}}</text>
</list-item>
<!-- #ifdef APP -->
<list-item slot="refresher" class="refresh-box">
<text class="tip-text">{{text[state]}}</text>
</list-item>
<!-- #endif -->
</list-view>
</view>
<scroll-view style="flex:1" direction="vertical">
<view class="content">
<!-- #ifdef APP -->
<boolean-data :defaultValue="false" title="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"
@change="change_refresher_triggered_boolean"></boolean-data>
<boolean-data :defaultValue="false" title="开启下拉刷新" @change="change_refresher_enabled_boolean"></boolean-data>
<boolean-data :defaultValue="false" title="开启自定义样式" @change="change_refresher_style_boolean"></boolean-data>
<!-- #endif -->
<boolean-data :defaultValue="false" title="是否在设置滚动条位置时使用滚动动画,设置false没有滚动动画"
@change="change_scroll_with_animation_boolean"></boolean-data>
<boolean-data :defaultValue="false" title="控制是否出现滚动条" @change="change_show_scrollbar_boolean"></boolean-data>
<!-- #ifdef APP -->
<boolean-data :defaultValue="true" title="控制是否回弹效果" @change="change_bounces_boolean"></boolean-data>
<!-- #endif -->
<boolean-data :defaultValue="true" title="允许纵向滚动" @change="change_scroll_y_boolean"></boolean-data>
<!-- #ifdef APP -->
<boolean-data :defaultValue="false" title="允许横向滚动" @change="change_scroll_x_boolean"></boolean-data>
<!-- #endif -->
<input-data defaultValue="50" title="距顶部/左边多远时(单位px),触发 scrolltoupper 事件" type="number"
@confirm="confirm_upper_threshold_input"></input-data>
<input-data defaultValue="50" title="距底部/右边多远时(单位px),触发 scrolltolower 事件" type="number"
@confirm="confirm_lower_threshold_input"></input-data>
<input-data defaultValue="0" title="设置竖向滚动条位置" type="number" @confirm="confirm_scroll_top_input"></input-data>
<!-- #ifdef APP -->
<input-data defaultValue="0" title="设置横向滚动条位置" type="number" @confirm="confirm_scroll_left_input"></input-data>
<input-data defaultValue="#FFF" title="设置下拉刷新区域背景颜色" type="text"
@confirm="confirm_refresher_background_input"></input-data>
<enum-data :items="size_enum" title="通过id位置跳转" @change="item_change_size_enum"></enum-data>
<navigator url="/pages/component/list-view/list-view-refresh">
<button type="primary" class="button">
list-view 下拉刷新
</button>
</navigator>
<!-- #endif -->
<navigator url="/pages/component/list-view/list-view-multiplex">
<button type="primary" class="button">
list-view 对list-item复用测试
</button>
</navigator>
<navigator url="/pages/component/list-view/list-view-multiplex-input">
<button type="primary" class="button">
list-view 复用测试(item中嵌入input)
</button>
</navigator>
<navigator url="/pages/component/list-view/list-view-multiplex-video">
<button type="primary" class="button">
list-view 复用测试(item中嵌入video)
</button>
</navigator>
<navigator url="/pages/component/list-view/list-view-children-in-slot">
<button type="primary" class="button">
list-view 测试插槽中子组件增删
</button>
</navigator>
<navigator url="/pages/component/list-view/list-view-children-if-show">
<button type="primary" class="button">
list-item v-if v-show 组合增删
</button>
</navigator>
<navigator url="/pages/component/list-view/list-view-long-press">
<button type="primary" class="button">
list-item 中设置长按事件测试
</button>
</navigator>
</view>
</scroll-view>
</template>
<style>
.main {
max-height: 250px;
padding: 5px 0;
border-bottom: 1px solid rgba(0, 0, 0, .06);
flex-direction: row;
justify-content: center;
}
.main .list-item {
width: 100%;
height: 250px;
border: 1px solid #666;
background-color: #66ccff;
align-items: center;
justify-content: center;
}
.tip-text {
color: #888;
font-size: 12px;
}
.refresh-box {
justify-content: center;
align-items: center;
flex-direction: row;
height: 45px;
width: 100%;
}
.button {
margin-top: 15px;
}
</style>
长列表是非常需要注意性能优化的。 当你的长列表卡顿时,请注意:
这些技巧另有专门教程
transform: rotate(180deg)
来实现。注意与下拉刷新有冲突,此时应避免启用下拉刷新。