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微信小程式實現無縫滾動

本文例項為大家分享了微信小程式實現無縫滾動的具體程式碼,供大家參考,具體內容如下

wxml

<view class="wrap-item" style='transform:translateX({{posLeft2}}px)www.cppcns.com'>
  <view class="messages-scroll firstScroll">
   <view class="{{index == 0?'yanse items':'items'}}" wx:for="{{zhuli}}" wx:key="index">
   <image wx:if="{{index == 0}}" src="../../images/xiangq_yonhu_icon_p.png"></image>
   <image wx:if="{{index != 0}}" src="../../images/xiangq_yonhu_icon_n.png"><XaMrkydG
;/image> <view>{{index}}{{item.ip}}{{item.str}}</view> </view> </view> <view class="messages-scroll secondScroll" style='transform:translateX({{marginLeft}}px)'> <view class="{{index == 0?'yanse items':'items'}}" wx:for="{{zhuli}}" wx:key="index"> <image wx:if="{{index == 0}}" src="../../images/xiangq_yonhu_icon_p.png"></image> <image wx:if="{{index != 0}}" src="../../images/xiangq_yonhu_icon_n.png"></image> <view>{{item.ip}}{{item.str}}</view> </view> </view> </view>

js

onShow(){
let windowWidth = wx.getSystemInfoSync().windowWidth; //螢幕寬度
wx.createSelectorQuery().select('.firstScroll').boundingClientRect(function (rect) {
  let txtLength = rect.width;//文字+圖示長度
  console.log(txtLength)
  console.log(rect)
  // that.setData({
  // marginLeft: txtLength < windowWidth - that.data.marginLeft ? windowWidth - txtLength : that.data.marginLeft
  // })
  console.log(that.data.marginLeft)
  that.roll2(that,txtLength,windowWidth); //呼叫滾動方法
 }).exec()
},roll2: function (that,windowWidth) {
 var interval2 = setInterval(functi
程式設計客棧
on () { if (-that.data.posLeft2 < txtLength) { that.setDat程式設計客棧a({ posLeft2: that.data.posLeft2 - that.data.phttp://www.cppcns.comace }) } else { // 第二段文字滾動到左邊後重新滾動 that.setData({ posLeft2: 0 }) clearInterval(interval2); that.roll2(that,windowWidth); } },20) },

wxss:

.wrap-item{
position: relative;
z-index: 10;
display: flex;
white-space: nowrap;
}

.brand-info .messages-scroll {
display: flex;
white-space: nowrap;

margin-top: 148rpx;
}

.brand-info .messages-scroll .items {
display: flex;
white-space: nowrap;
box-sizing: border-box;
padding: 0 10rpx;
margin-left: 10rpx;
align-items: center;
/* width: 332rpx; */
height: 50rpx;
background: rgba(0,0.2);
border-radius: 25rpx;
color: #99A4BA;
}

.yanse{
color: #C4FFFD !important;
}

.brand-info .messages-scroll .items image {
width: 26rpx;
height: 22rpx;
margin-right: 10rpx;
}

.brand-info .messages-scroll .items view {
font-size: 24rpx;
font-family: Source Han Sans CN;
font-weight: 400;
}

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。