微信小程序开发实现scroll-view隐藏滚动条方法介绍
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2022-04-22 19:55:30
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网页开发的时候往往会为了页面的美观,而选择去掉滚动区域默认的滚动条。微信小程序实现scroll-view隐藏滚动条的方法之一:
首先我们来看一下,scroll-view的一些属性组件
使用竖向滚动时,需要给<scroll-view/>一个固定高度,通过 WXSS 设置 height。
再来看一些简单的代码示例:
<view class="section"> <view class="sectiontitle">vertical scroll</view> <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> </view> <view class="section section_gap"> <view class="sectiontitle">horizontal scroll</view> <scroll-view class="scroll-view_H" scroll-x="true" style="width: 100%"> <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> </view>
var order = ['red', 'yellow', 'blue', 'green', 'red'] Page({ data: { toView: 'red', scrollTop: 100 }, upper: function(e) { console.log(e) }, lower: function(e) { console.log(e) }, scroll: function(e) { console.log(e) }, tap: function(e) { for (var i = 0; i < order.length; ++i) { if (order[i] === this.data.toView) { this.setData({ toView: order[i + 1] }) break } } }, tapMove: function(e) { this.setData({ scrollTop: this.data.scrollTop + 10 }) } }) scroll-view
效果图如下:
注意:
(1)不能在scroll-view中使用textarea,mao,canvas,video组件
(2)scroll-init-view的优先级高于scroll-top
(3)onPullDownRefresh事件,无法在scroll-view中触发
(4)若想使用下拉刷新,一定要使用页面的滚动,而不是scroll-view,这样也能通过点击顶部状态栏回到页面顶部
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