本文实例为大家分享了微信小程序实现无缝滚动的具体代码，供大家参考，具体内容如下
wxml
< view class = "wrap-item" style = 'transform:translateX({{posLeft2}}px)' >
< 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" ></ 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; //屏幕宽度
wx.createSelectorQuery().select( '.firstScroll' ).boundingClientRect( function (rect) {
let txtLength = rect.width; //文字+图标长度
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); //调用滚动方法
}).exec()
},
roll2: function (that, txtLength, windowWidth) {
var interval2 = setInterval( function () {
if (-that.data.posLeft2 < txtLength) {
that.setData({
posLeft2: that.data.posLeft2 - that.data.pace
})
} else { // 第二段文字滚动到左边后重新滚动
that.setData({
posLeft2: 0
})
clearInterval(interval2);
that.roll2(that, txtLength, 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 : 148 rpx;
}
.brand-info .messages- scroll .items {
display : flex;
white-space : nowrap ;
box-sizing: border-box;
padding : 0 10 rpx;
margin-left : 10 rpx;
align-items: center ;
/* width: 332rpx; */
height : 50 rpx;
background : rgba( 0 , 0 , 0 , 0.2 );
border-radius: 25 rpx;
color : #99A4BA ;
}
.yanse{
color : #C4FFFD !important ;
}
.brand-info .messages- scroll .items image {
width : 26 rpx;
height : 22 rpx;
margin-right : 10 rpx;
}
.brand-info .messages- scroll .items view {
font-size : 24 rpx;
font-family : Source Han Sans CN;
font-weight : 400 ;
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/Edward_Cullens/article/details/103509884
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