overflow:auto/*需要的时候会出现滚动条*/
overflow-x:auto/*控制X方向的滚动条*/
overflow-y:auto/*控制Y方向的滚动条*/
示例:
<HTML>
<HEAD>
<TITLE>测试表格内的滚动条</TITLE>
</HEAD>
<BODY>
<table>
<tr>
<td>表格内的滚动条:</td>
<td>
<div id="wins"
style="position:absoluteheight:200width:200overflow:autobackground:#EEEEEE">
<p>pppppppppppppppppppppppppppppppppppppppppppppppppp </p>
<p>pppppppppppppppppppppppppppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
<p>ppppppppppppppppppppppppp </p>
</div>
</td>
</tr>
<tr>
<td colspan="2" align="right">
<span onmouseover='scrollb=setInterval("wins.scrollLeft-=10",100)'
onmouseout=clearInterval(scrollb)>向左</span>
<span onmouseover='scrollb=setInterval("wins.scrollTop-=10",100)'
onmouseout=clearInterval(scrollb)>向上</span>
<span onmouseover='scrollb=setInterval("wins.scrollLeft+=10",100)'
onmouseout=clearInterval(scrollb)>向右</span>
<span onmouseover='scrollb=setInterval("wins.scrollTop+=10",100)'
onmouseout=clearInterval(scrollb)>向下</span>
</td>
</tr>
</table>
</BODY>
</HTML>
组件说明:
可滚动视图区域。
组件用法：
纵向滚动用法
Tip:
使用竖向滚动时，需要给一个固定高度，通过 WXSS 设置 height，否则无法滚动。
当滚动到顶部时会触发bindscrolltoupper事件（具体可留意GIF输出）
当滚动到底部时会触发bindscrolltolower事件（具体可留意GIF输出）
效果图：
wxml
<scroll-view scroll-y="true" style="height: 200px" bindscrolltoupper="upper" bindscrolltolower="lower" bindscroll="scroll" scroll-into-view="{{toView}}" scroll-top="{{scrollTop}}">
<view id="green" class="scroll-view-item bc_green"></view>
<view id="red" class="scroll-view-item bc_red"></view>
<view id="yellow" class="scroll-view-item bc_yellow"></view>
<view id="blue" class="scroll-view-item bc_blue"></view>
</scroll-view>
<view class="btn-area">
<button size="mini" bindtap="tap">click me to scroll into view </button>
<button size="mini" bindtap="tapMove">click me to scroll</button>
</view>
js
var order = ['red', 'yellow', 'blue', 'green', 'red']
Page({
data: {
toView: 'green',
scrollTop: 100,
scrollLeft: 0
},
//滚动条滚到顶部的时候触发
upper: function(e) {
console.log(e)
},
//滚动条滚到底部的时候触发
lower: function(e) {
console.log(e)
},
//滚动条滚动后触发
scroll: function(e) {
console.log(e)
},
//点击按钮切换到下一个view
tap: function(e) {
for (var i = 0i <order.length++i) {
if (order[i] === this.data.toView) {
this.setData({
toView: order[i + 1]
})
break
}
}
},
//通过设置滚动条位置实现画面滚动
tapMove: function(e) {
this.setData({
scrollTop: this.data.scrollTop + 10
})
}
})
css
.scroll-view_H{
white-space: nowrap
}
.scroll-view-item{
height: 200px
}
.scroll-view-item_H{
display: inline-block
width: 100%
height: 200px
}
横向滚动用法
Tip:
横向滚动无法使用scroll-into-view属性。
当滚动到最左边时会触发bindscrolltoupper事件（具体可留意GIF输出）
当滚动到最右边时会触发bindscrolltolower事件（具体可留意GIF输出）
效果图：
wxml
<scroll-view class="scroll-view_H" scroll-x="true" style="width: 100%" bindscrolltoupper="upper" bindscrolltolower="lower" bindscroll="scroll" scroll-left="{{scrollLeft}}">
<view id="green" class="scroll-view-item_H bc_green"></view>
<view id="red" class="scroll-view-item_H bc_red"></view>
<view id="yellow" class="scroll-view-item_H bc_yellow"></view>
<view id="blue" class="scroll-view-item_H bc_blue"></view>
</scroll-view>
js
var order = ['red', 'yellow', 'blue', 'green', 'red']
Page({
data: {
toView: 'green',
scrollTop: 100,
scrollLeft: 0
},
//滚动条滚到顶部的时候触发
upper: function(e) {
console.log(e)
},
//滚动条滚到底部的时候触发
lower: function(e) {
console.log(e)
},
//滚动条滚动后触发
scroll: function(e) {
console.log(e)
},
//点击按钮切换到下一个view
tap: function(e) {
for (var i = 0i <order.length++i) {
if (order[i] === this.data.toView) {
this.setData({
toView: order[i + 1]
})
break
}
}
},
//通过设置滚动条位置实现画面滚动
tapMove: function(e) {
this.setData({
scrollLeft: this.data.scrollLeft + 10
})
}
})
wxss
.scroll-view_H{
white-space: nowrap
}
.scroll-view-item{
height: 200px
}
.scroll-view-item_H{
display: inline-block
width: 100%
height: 200px
}
主要属性：
属性类型默认值描述
scroll-xBooleanfalse允许横向滚动
scroll-yBooleanfalse允许纵向滚动
upper-thresholdNumber50距顶部/左边多远时（单位px），触发 scrolltoupper 事件
lower-thresholdNumber50距底部/右边多远时（单位px），触发 scrolltolower 事件
scroll-topNumber设置竖向滚动条位置
scroll-leftNumber设置横向滚动条位置
scroll-into-viewString值应为某子元素id，则滚动到该元素，元素顶部对齐滚动区域顶部
bindscrolltoupperEventHandle滚动到顶部/左边，会触发 scrolltoupper 事件
bindscrolltolowerEventHandle滚动到底部/右边，会触发 scrolltolower 事件
bindscrollEventHandle滚动时触发，event.detail = {scrollLeft, scrollTop, scrollHeight, scrollWidth, deltaX, deltaY}
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