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scroll-view

Scrollable view area. A view group that allows the view hierarchy placed within it to be scrolled. When using vertical scrolling, you need to give the scroll view a fixed height.

Example

bxml

<view class="container">
<view class="page-body">
<view class="page-section-title">
<text>scrollY Vertical Scroll</text>
</view>
<view class="page-section-spacing">
<scroll-view
scrollY
style="height: 150px;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindtap="onTap"
bind:longpress="onLongpress"
bindscroll="onScroll"
>
<view class="scroll-view-item demo-text-1"></view>
<view class="scroll-view-item demo-text-2"></view>
<view class="scroll-view-item demo-text-3"></view>
</scroll-view>
</view>
</view>
<view class="page-section">
<view class="page-section-title">
<text>scroll-x="{{true}}" Horizontal Scroll</text>
</view>
<view class="page-section-spacing">
<scroll-view
class="scroll-view_H"
scroll-x="{{true}}"
style=" width: 100%;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindscroll="onScroll"
scrollLeft="{{25}}"
>
<view class="scroll-view-item_H demo-text-1"></view>
<view class="scroll-view-item_H demo-text-2"></view>
<view class="scroll-view-item_H demo-text-3"></view>
</scroll-view>
</view>
</view>
<view class="page-body">
<view class="page-section-title">
<text>scroll-y ScrollIntoView 2 item</text>
</view>
<view class="page-section-spacing">
<scroll-view
scroll-y="{{true}}"
style="height: 150px;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindscroll="onScroll"
scroll-into-view="{{scrollIntoView}}"
>
<view id="demo1" class="scroll-view-item demo-text-1"></view>
<view id="demo2" class="scroll-view-item demo-text-2"></view>
<view id="demo3" class="scroll-view-item demo-text-3"></view>
</scroll-view>
</view>
</view>

<view class="page-section">
<view class="page-section-title">
<text>scroll-x ScrollIntoView 2 item</text>
</view>
<view class="page-section-spacing">
<scroll-view
class="scroll-view_H"
scroll-x="{{true}}"
style="width: 100%;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindscroll="onScroll"
scroll-into-view="{{scrollIntoView}}"
>
<view id="demo1" class="scroll-view-item_H demo-text-1"></view>
<view id="demo2" class="scroll-view-item_H demo-text-2"></view>
<view id="demo3" class="scroll-view-item_H demo-text-3"></view>
</scroll-view>
</view>
</view>
<view class="page-body">
<view class="page-section-title">
<text>Vertical Scroll with infinite scroll</text>
</view>
<view class="page-section-spacing">
<scroll-view
scroll-y="{{true}}"
style="height: 150px;"
bindscrolltolower="loadMore"
>
<view
bn:for="{{items}}"
bn:key="index"
class="scroll-view-item demo-text-{{(index % 3 + 1)}}"
></view>
</scroll-view>
</view>
</view>

<view class="page-section">
<view class="page-section-title">
<text>enhanced, fastDeceleration</text>
</view>
<view class="page-section-spacing">
<scroll-view
class="scroll-view_H"
scroll-x="{{true}}"
style="width: 100%;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindscroll="onScroll"
enhanced
scroll-left="{{25}}"
fastDeceleration
>
<view class="scroll-view-item_H demo-text-1"></view>
<view class="scroll-view-item_H demo-text-2"></view>
<view class="scroll-view-item_H demo-text-3"></view>
</scroll-view>
</view>

<view class="page-section-spacing">
<scroll-view
scroll-y="{{true}}"
style="height: 150px;"
bindscrolltoupper="onScrollToUpper"
bindscrolltolower="onScrollToLower"
bindtap="onTap"
bind:longpress="onLongpress"
bindscroll="onScroll"
scroll-top="{{25}}"
enhanced
fastDeceleration
>
<view class="scroll-view-item demo-text-1"></view>
<view class="scroll-view-item demo-text-2"></view>
<view class="scroll-view-item demo-text-3"></view>
</scroll-view>
</view>
</view>
</view>

bxss


.page-section-spacing {
margin-top: 30px;
}
.scroll-view_H {
white-space: nowrap;
}
.scroll-view-item {
height: 150px;
}
.scroll-view-item_H {
display: inline-block;
width: 100%;
height: 150px;
}

.demo-text-1 {
position: relative;
align-items: center;
justify-content: center;
background-color: #1aad19;
color: #ffffff;
font-size: 18px;
}
.demo-text-1:before {
content: 'A';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.demo-text-2 {
position: relative;
align-items: center;
justify-content: center;
background-color: #2782d7;
color: #ffffff;
font-size: 18px;
}
.demo-text-2:before {
content: 'B';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.demo-text-3 {
position: relative;
align-items: center;
justify-content: center;
background-color: #f1f1f1;
color: #353535;
font-size: 18px;
}
.demo-text-3:before {
content: 'C';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}

js

Page({
data: {
items: new Array(3).fill(1),
scrollTop: 25,
scrollIntoView: 'demo3'
},
onShow() {
setTimeout(() => {
this.setData({
scrollTop:50,
scrollIntoView: 'demo2'
})
}, 3000)
},
onScroll(e) {
console.log('onScroll', e)
},
onScrollToUpper(e) {
console.log('onScrollToUpper', e)
},
onScrollToLower(e) {
console.log('onScrollToLower', e)
},
onTap(e) {
console.log(`[scroll-view] bindtap`, e)
},
onLongpress(e) {
console.log(`[scroll-view] longpress`, e)
},
scrollToTop() {

},
loadMore() {
this.setData({
items: [...this.data.items, ...new Array(3).fill(1)]
})
}
})

Bug & Tip

  • tip: The priority of scroll-into-view is higher than that of scroll-top.
  • tip: Scrolling in the scroll-view will prevent the page from bouncing back, so scrolling in the scroll-view cannot trigger onpulldownrefresh.
  • tip: To use the pull-down refresh, please use the scroll of the page instead of the scroll-view, so that you can return to the top of the page by clicking the status bar at the top.

Props

NameTypeDescriptionDefault
scroll-xbooleanAllow lateral scrollingfalse
scroll-ybooleanAllow vertical scrollingfalse
scroll-topstring | numberSet vertical scroll bar position
scroll-leftstring | numberSet horizontal scroll bar position
scroll-into-viewstringThe value should be the ID of a child element (ID cannot start with a number). Set which direction to scroll, then scroll to the element in which direction
scroll-into-view-alignmentstringset alignment of target view when scroll into the view, support from jssdk >= 4.17.0"start"
upper-thresholdstring | numberWhen it is far from the top / left, the scrolltupper event is triggered50
lower-thresholdstring | numberWhen it is far from the bottom / right, the scrollcolor event is triggered50
enhancedbooleanEnable the scroll view enhancement feature. After enabling, you can operate scroll view through ScrollViewContextfalse
fast-decelerationbooleanSliding deceleration rate control (effective after the enhanced attribute is turned on at the same time)false
show-scrollbarbooleanEnabled when enhanced:true, control the scrollbar show/hidetrue
refresher-enabledbooleanEnable pull-down refresh, support from jssdk >= 4.9.0false
refresher-thresholdnumberrefresher threshold to trigger refresh (in px), support from jssdk >= 4.9.045
refresher-default-stylestringrefresher default style, support from jssdk >= 4.9.0 options: black, white, none"black"
refresher-backgroundstringrefresher background style, support from jssdk >= 4.9.0"#FFF"
refresher-triggeredbooleanis refresher triggered, support from jssdk >= 4.9.0false
scroll-anchoringbooleansolve the problem of content jumping from jssdk >= 4.14.0
scroll-with-animationbooleanUse animation transitions when setting scroll bar position, support from jssdk >= 4.17.0false
scroll-speed-limitnumberScroll pixels per millisecond, Limit scroll speed, support from jssdk >= 4.18.0"Infinity"
typestringSkyline props for better long list performance, support from jssdk >= 4.31.0
extraobjectBusiness related-custom data, support from jssdk >= 4.32.0
bouncesbooleantrue

Events

NameDescription
bindscrollbindscroll Triggered when scrolling,
Arguments
  • event: detail: Object — The detail event objectObject{ scrollLeft, scrollTop, scrollHeight, scrollWidth, scrollWidth, deltaX, deltaY }
bindscrolltoupperbindscrolltoupper Scroll to the top/Triggered on the left
bindscrolltolowerbindscrolltolower Scroll to the bottom/Triggered on the right
bindrefresherpullingbindrefresherpulling Triggered when pulling down
bindrefresherrefreshbindrefresherrefresh Triggered when refreshing
bindrefresherrestorebindrefresherrestore Triggered when pull-down refresher restoring
bindrefresherabortbindrefresherabort Triggered when refresh aborting