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
Name | Type | Description | Default |
---|---|---|---|
scroll-x | boolean | Allow lateral scrolling | false |
scroll-y | boolean | Allow vertical scrolling | false |
scroll-top | string | number | Set vertical scroll bar position | |
scroll-left | string | number | Set horizontal scroll bar position | |
scroll-into-view | string | The 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-alignment | string | set alignment of target view when scroll into the view, support from jssdk >= 4.17.0 | "start" |
upper-threshold | string | number | When it is far from the top / left, the scrolltupper event is triggered | 50 |
lower-threshold | string | number | When it is far from the bottom / right, the scrollcolor event is triggered | 50 |
enhanced | boolean | Enable the scroll view enhancement feature. After enabling, you can operate scroll view through ScrollViewContext | false |
fast-deceleration | boolean | Sliding deceleration rate control (effective after the enhanced attribute is turned on at the same time) | false |
show-scrollbar | boolean | Enabled when enhanced:true, control the scrollbar show/hide | true |
refresher-enabled | boolean | Enable pull-down refresh, support from jssdk >= 4.9.0 | false |
refresher-threshold | number | refresher threshold to trigger refresh (in px), support from jssdk >= 4.9.0 | 45 |
refresher-default-style | string | refresher default style, support from jssdk >= 4.9.0 options: black, white, none | "black" |
refresher-background | string | refresher background style, support from jssdk >= 4.9.0 | "#FFF" |
refresher-triggered | boolean | is refresher triggered, support from jssdk >= 4.9.0 | false |
scroll-anchoring | boolean | solve the problem of content jumping from jssdk >= 4.14.0 | |
scroll-with-animation | boolean | Use animation transitions when setting scroll bar position, support from jssdk >= 4.17.0 | false |
scroll-speed-limit | number | Scroll pixels per millisecond, Limit scroll speed, support from jssdk >= 4.18.0 | "Infinity" |
type | string | Skyline props for better long list performance, support from jssdk >= 4.31.0 | |
extra | object | Business related-custom data, support from jssdk >= 4.32.0 | |
bounces | boolean | true |
Events
Name | Description |
---|---|
bindscroll | bindscroll Triggered when scrolling,Arguments
|
bindscrolltoupper | bindscrolltoupper Scroll to the top/Triggered on the left |
bindscrolltolower | bindscrolltolower Scroll to the bottom/Triggered on the right |
bindrefresherpulling | bindrefresherpulling Triggered when pulling down |
bindrefresherrefresh | bindrefresherrefresh Triggered when refreshing |
bindrefresherrestore | bindrefresherrestore Triggered when pull-down refresher restoring |
bindrefresherabort | bindrefresherabort Triggered when refresh aborting |