本文实例为大家分享了微信小程序实现多行文字滚动的具体代码，供大家参考，具体内容如下
wxml
< view class = "full" style = "height:100%;overflow:hidden" >
< swiper autoplay = "true" interval = "3000" duration = "500" circular = "true" vertical = "true" style = "height:100%" >
< swiper-item wx:for = "{{topnewslist}}" wx:key = "{{index}}" catchtouchmove = 'catchTouchMove' >
< van-notice-bar scrollable = "{{false}}" bindtap = "tonewsdetail" wx:for = "{{item}}" wx:for-item = "it" wx:key = "{{index}}" data-newsid = "{{it.new_id}}" style = "width:100%" text = "{{it.new_topic}}" />
</ swiper-item >
</ swiper >
</ view >
wxss
swiper-item {
height : 100% ;
}
js
//index.js
//获取应用实例
import api from "utils/api.js"
var token = ''
const app = getApp()
Page({
data: {
topnewslist:[]
},
onLoad: function () {
},
tonewsdetail(e){
var newsid=e.currentTarget.dataset.newsid;
wx.navigateTo({
url: '/pages/newsdetail/newsdetail?newsid=' +newsid,
})
},
loadscrollnews(){
api.get( "mpapi/mpmnews.ashx" , { action: 'toplist' ,token:token}).then((res)=>{
if (res.code==1){
//res.list=[{"new_id":1,"new_topic":"111"},{"new_id":2,"new_topic":"222"},{"new_id":3,"new_topic":"333"},{"new_id":4,"new_topic":"444"}]
this .setData({
topnewslist: this .splitArr(res.list, 2) //调用
//调用之后[[{"new_id":1,"new_topic":"111"},{"new_id":2,"new_topic":"222"}],[{"new_id":3,"new_topic":"333"},{"new_id":4,"new_topic":"444"}]]
})
}
})
},
/**
* 分割数组创建二维数组封装
* @param data 数组
* @param senArrLen 需要分割成子数组的长度
*/
splitArr(data, senArrLen){
//处理成len个一组的数据
let data_len = data.length;
let arrOuter_len = data_len % senArrLen === 0 ? data_len / senArrLen : parseInt((data_len / senArrLen) + '' ) + 1;
let arrSec_len = data_len > senArrLen ? senArrLen : data_len; //内层数组的长度
let arrOuter = new Array(arrOuter_len); //最外层数组
let arrOuter_index = 0; //外层数组的子元素下标
// console.log(data_len % len);
for (let i = 0; i < data_len; i++) {
if (i % senArrLen === 0) {
arrOuter_index++;
let len = arrSec_len * arrOuter_index;
//将内层数组的长度最小取决于数据长度对len取余，平时最内层由下面赋值决定
arrOuter[arrOuter_index - 1] = new Array(data_len % senArrLen);
if (arrOuter_index === arrOuter_len) //最后一组
data_len % senArrLen === 0 ?
len = data_len % senArrLen + senArrLen * arrOuter_index :
len = data_len % senArrLen + senArrLen * (arrOuter_index - 1);
let arrSec_index = 0; //第二层数组的索引
for (let k = i; k < len; k++) { //第一层数组的开始取决于第二层数组长度*当前第一层的索引
arrOuter[arrOuter_index - 1][arrSec_index] = data[k];
arrSec_index++;
}
}
}
return arrOuter
},
// 截获竖向滑动
catchTouchMove: function (res) {
return false
},
})
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/Dilemma_me/article/details/103171614
dy("nrwz");