//index.js
var app = getApp()
Page({
data: {
goodsList:{
saveHidden:true,
totalPrice:0,
allSelect:true,
noSelect:false,
list:[]
},
delBtnWidth:120, //删除按钮宽度单位（rpx）
},
//获取元素自适应后的实际宽度
getEleWidth:function(w){
var real = 0;
try {
var res = wx.getSystemInfoSync().windowWidth;
var scale = (750/2)/(w/2); //以宽度750px设计稿做宽度的自适应
// console.log(scale);
real = Math.floor(res/scale);
return real;
} catch (e) {
return false;
// Do something when catch error
}
},
initEleWidth:function(){
var delBtnWidth = this.getEleWidth(this.data.delBtnWidth);
this.setData({
delBtnWidth:delBtnWidth
});
},
onLoad: function () {
this.initEleWidth();
this.onShow();
},
onShow: function(){
var shopList = [];
// 获取购物车数据
var shopCarInfoMem = wx.getStorageSync('shopCarInfo');
if (shopCarInfoMem && shopCarInfoMem.shopList) {
shopList = shopCarInfoMem.shopList
}
this.data.goodsList.list = shopList;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),shopList);
},
toIndexPage:function(){
wx.switchTab({
url: "/pages/index/index"
});
},
touchS:function(e){
if(e.touches.length==1){
this.setData({
startX:e.touches[0].clientX
});
}
},
touchM:function(e){
var index = e.currentTarget.dataset.index;
if(e.touches.length==1){
var moveX = e.touches[0].clientX;
var disX = this.data.startX - moveX;
var delBtnWidth = this.data.delBtnWidth;
var left = "";
if(disX == 0 || disX < 0){//如果移动距离小于等于0，container位置不变
left = "margin-left:0px";
}else if(disX > 0 ){//移动距离大于0，container left值等于手指移动距离
left = "margin-left:-"+disX+"px";
if(disX>=delBtnWidth){
left = "left:-"+delBtnWidth+"px";
}
}
var list = this.data.goodsList.list;
if(index!="" && index !=null){
list[parseInt(index)].left = left;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
}
}
},
touchE:function(e){
var index = e.currentTarget.dataset.index;
if(e.changedTouches.length==1){
var endX = e.changedTouches[0].clientX;
var disX = this.data.startX - endX;
var delBtnWidth = this.data.delBtnWidth;
//如果距离小于删除按钮的1/2，不显示删除按钮
var left = disX > delBtnWidth/2 ? "margin-left:-"+delBtnWidth+"px":"margin-left:0px";
var list = this.data.goodsList.list;
if(index!=="" && index != null){
list[parseInt(index)].left = left;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
}
}
},
delItem:function(e){
var index = e.currentTarget.dataset.index;
var list = this.data.goodsList.list;
list.splice(index,1);
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
},
selectTap:function(e){
var index = e.currentTarget.dataset.index;
var list = this.data.goodsList.list;
if(index!=="" && index != null){
list[parseInt(index)].active = !list[parseInt(index)].active ;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
}
},
totalPrice:function(){
var list = this.data.goodsList.list;
var total = 0;
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
if(curItem.active){
total+= parseFloat(curItem.price)*curItem.number;
}
}
total = parseFloat(total.toFixed(2));//js浮点计算bug，取两位小数精度
return total;
},
allSelect:function(){
var list = this.data.goodsList.list;
var allSelect = false;
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
if(curItem.active){
allSelect = true;
}else{
allSelect = false;
break;
}
}
return allSelect;
},
noSelect:function(){
var list = this.data.goodsList.list;
var noSelect = 0;
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
if(!curItem.active){
noSelect++;
}
}
if(noSelect == list.length){
return true;
}else{
return false;
}
},
setGoodsList:function(saveHidden,total,allSelect,noSelect,list){
this.setData({
goodsList:{
saveHidden:saveHidden,
totalPrice:total,
allSelect:allSelect,
noSelect:noSelect,
list:list
}
});
var shopCarInfo = {};
var tempNumber = 0;
shopCarInfo.shopList = list;
for(var i = 0;i<list.length;i++){
tempNumber = tempNumber + list[i].number
}
shopCarInfo.shopNum = tempNumber;
wx.setStorage({
key:"shopCarInfo",
data:shopCarInfo
})
},
bindAllSelect:function(){
var currentAllSelect = this.data.goodsList.allSelect;
var list = this.data.goodsList.list;
if(currentAllSelect){
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
curItem.active = false;
}
}else{
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
curItem.active = true;
}
}
this.setGoodsList(this.getSaveHide(),this.totalPrice(),!currentAllSelect,this.noSelect(),list);
},
jiaBtnTap:function(e){
var index = e.currentTarget.dataset.index;
var list = this.data.goodsList.list;
if(index!=="" && index != null){
if(list[parseInt(index)].number<10){
list[parseInt(index)].number++;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
}
}
},
jianBtnTap:function(e){
var index = e.currentTarget.dataset.index;
var list = this.data.goodsList.list;
if(index!=="" && index != null){
if(list[parseInt(index)].number>1){
list[parseInt(index)].number-- ;
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
}
}
},
editTap:function(){
var list = this.data.goodsList.list;
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
curItem.active = false;
}
this.setGoodsList(!this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
},
saveTap:function(){
var list = this.data.goodsList.list;
for(var i = 0 ; i < list.length ; i++){
var curItem = list[i];
curItem.active = true;
}
this.setGoodsList(!this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
},
getSaveHide:function(){
var saveHidden = this.data.goodsList.saveHidden;
return saveHidden;
},
deleteSelected:function(){
var list = this.data.goodsList.list;
/*
for(let i = 0 ; i < list.length ; i++){
let curItem = list[i];
if(curItem.active){
list.splice(i,1);
}
}
*/
// above codes that remove elements in a for statement may change the length of list dynamically
list = list.filter(function(curGoods) {
return !curGoods.active;
});
this.setGoodsList(this.getSaveHide(),this.totalPrice(),this.allSelect(),this.noSelect(),list);
},
toPayOrder:function(){
wx.showLoading();
var that = this;
if (this.data.goodsList.noSelect) {
wx.hideLoading();
return;
}
// 重新计算价格，判断库存
var
基于JavaScript开发的智慧社区小程序源码(课设项目).zip
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基于JavaScript开发的智慧社区小程序源码(课设项目).zip （477个子文件） 
saoxue.jpeg 183KB shequ.jpeg 138KB yiqing.jpeg 136KB
saoxue.jpg 749KB touxiang.jpg 43KB shequ2.jpg 43KB index.js 11KB add.js 9KB index.js 6KB app.js 5KB index.js 5KB index.js 5KB changePhone.js 4KB index.js 4KB transition.js 4KB add.js 4KB util.js 4KB index.js 4KB index.js 3KB index.js 3KB component.js 3KB feedback.js 3KB index.js 3KB index.js 3KB countdown.js 3KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB util.js 2KB index.js 2KB toLogin.js 2KB index.js 2KB index.js 2KB index.js 2KB index.js 2KB type.js 2KB index.js 2KB index.js 2KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB rules.js 1KB messages.js 1KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB index.js 1KB touch.js 1KB index.js 1KB index.js 1010B index.js 994B index.js 988B index.js 960B index.js 923B index.js 912B index.js 894B index.js 873B index.js 849B index.js 845B index.js 845B index.js 844B add.js 843B index.js 838B index.js 830B basic.js 824B utils.js 797B info.js 771B index.js 742B eventBus.js 720B index.js 689B range.js 683B index.js 682B scrollCenter.js 682B open-type.js 674B index.js 643B index.js 615B index.js 587B index.js 583B index.js 539B index.js 529B utils.js 489B index.js 462B button.js 442B index.js 441B index.js 440B index.js 435B string.js 422B pattern.js 402B shared.js 388B共 477 条
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