collection.js
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import MessageService from './collectionService.js'
Page({
/**
* 页面的初始数据
*/
data: {
collectionInfo: {
isLoading: false,
hasMore: true,
currentPage: 1,
collectionList: [],
},
_triggerObserer: true,
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
},
fetchCollectionList: function (reload) {
let that = this;
let collectionInfo = that.data.collectionInfo;
if ((collectionInfo.isLoading || !collectionInfo.hasMore) && !reload) {
return;
}
collectionInfo.isLoading = true;
that.setData({
collectionInfo
})
wx.showLoading({
title: '',
})
let params = {
page: collectionInfo.currentPage,
limit: 20
}
let api = new MessageService();
api.fetchCollectionList(params, () => {
wx.hideLoading();
})
.then(data => {
if (data) {
let list = data.product_list;
if (reload) {
collectionInfo.collectionList = list;
} else {
collectionInfo.collectionList = collectionInfo.collectionList.concat(list);
}
collectionInfo.isLoading = false;
collectionInfo.currentPage = data.page;
let hasMore = collectionInfo.currentPage < data.page_total;
collectionInfo.hasMore = hasMore;
if (hasMore) {
collectionInfo.currentPage = collectionInfo.currentPage + 1;
}
that.setData({
collectionInfo,
})
wx.hideLoading();
let _triggerObserer = that.data._triggerObserer;
that.setData({
_triggerObserer: !_triggerObserer,
})
}
})
.catch(error => {
wx.hideLoading();
collectionInfo.isLoading = false;
console.error(error);
})
},
/**
* 生命周期函数--监听页面初次渲染完成
*/
onReady: function () {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
this.fetchCollectionList(true);
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide: function () {
},
/**
* 生命周期函数--监听页面卸载
*/
onUnload: function () {
},
/**
* 页面相关事件处理函数--监听用户下拉动作
*/
onPullDownRefresh: function () {
},
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom: function () {
this.fetchCollectionList(false);
},
/**
* 用户点击右上角分享
*/
onShareAppMessage: function () {
}
})