在新增了永久素材後，開發者可以分類型獲取永久素材的列表：
1、獲取永久素材的列表，也包含公眾號在公眾平臺官網素材管理模塊中新建的圖文消息、語音、視頻等素材 。
2、臨時素材無法通過本接口獲取。
3、調用該接口需/cgi-bin/material/batchget_material?access_token=ACCESS_TOKEN
調取素材列表之後在小程序中通過視圖組件scroll-view來實現，主要有標題、封面圖、摘要：
<scroll-view class="container"scroll-y='true' style="height:{{height}}px" bindscrolltolower='lower'>
<block wx:for="{{res}}" >
<view class='feed-item' id='{{item.title}}' bindtap='getDetial'>
<view>
<text >{{item.title}}</text>
</view>
<view style='text-align: center'>
<image src='{{item.image_url}}'>tupian </image>
</view>
<view>
<text >{{item.digest}}</text>
</view>
</view>
</block>
</scroll-view>
文章列表在頁面首次加載時就獲取：
/**
* 生命周期函數--監聽頁面加載
*/
onLoad: function (options) {
wx.getSystemInfo({
success: (res) => {
this.setData({
height: res.windowHeight
})
}
})
this.getData()
}
函數getData()實現步驟，具體請求函數用雲函數來實現，先從調取acces_token：
// 雲函數入口文件
const cloud = require('wx-server-sdk')
const news = require('New')
cloud.init()
// 雲函數入口函數
exports.main = async (event, context) => {
let token = null;
await cloud.callFunction({
name:'token'
}).then(function(data){
token = data.result;
});
let offset = event.offset;
let count = event.count;
let nw = new news(token);
let rst = nw.getWechatPosts(offset,count);
return rst;
}
然後調取文章列表信息，每次獲取10條信息：
//獲取文章列表
getData(){
var that = this;
let pgno = this.data.pageNo+1;
let result = this.data.res;
wx.cloud.callFunction({
name:'news',
data:{
offset:this.data.offset,
count:this.data.count
},
success:function(res){
var resArr = [];
let body = res.result.body;
let total_count = body.total_count;//總***圖文數量
let item_count = body.item_count;//本次調用數量
let item = body.item;
let page_total = parseInt((total_count + that.data.count - 1) / that.data.count);
let mud = total_count % that.data.count;
const db = wx.cloud.database();
for (let i = 0; i < item.length; i++) {
let news_item = item[i].content.news_item;
//單圖文消息及多圖文消息
for (let j = 0; j < news_item.length; j++) {
let title = news_item[j].title;//標題
let url = news_item[j].url;//詳細地址
let image_url = news_item[j].thumb_url;//封面圖片地址
let digest = news_item[j].digest;//摘要
let author = news_item[j].author;//作者
let content = news_item[j].content;
resArr.push(new nw(total_count, item_count, title, url, image_url, digest, author, content));
let res_id = null;
db.collection('content').where({
_id: url
}).get({
success: function (res) {
res_id = res.data[0]._id;
}
})
if (res_id === url){
}else{
db.collection('content').add({
data: {
_id: url,
content: content,
title: title
},
success: function (res) {
}
})
}
}
that.setData({
res: result.concat(resArr),
page_total: page_total,
pageNo: pgno,
mud: mud
});
}
}
})
}
scroll-view組件到底觸發事件實現函數：
lower() {
//總頁數18/10=1
var pageno = this.data.pageNo;
var page = this.data.page_total;
console.log("總頁數：" + page+",第"+pageno+"頁"+"zuohouy:"+this.data.mud)
if (pageno > page) {//page 4
wx.showToast({ //如果全部加載完成了也彈壹個框
title: '我也是有底線的',
icon: 'success',
duration: 300
});
return false;
} else {
wx.showLoading({ //期間為了顯示效果可以添加壹個過度的彈出框提示“加載中”
title: '加載中',
icon: 'loading',
});
let offset = this.data.offset;
let count = this.data.count;
offset = this.data.offset + this.data.count;
console.log("offset:" + offset+"count:"+count)
this.setData({
offset: offset,
count: count
});
setTimeout(() => {
this.getData();
wx.hideLoading();
}, 1500);
}
}