这篇文章将为大家详细讲解有关JS如何实现课程表小程序加入自定义背景功能，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。
gif演示：
在底部会放上gitee的开源地址
最近总感觉目前的界面过于简洁了，不满足我这个体面人的需求，故加入自定义课程表背景的的功能。
新增页面：
效果：
需要在mine.js里面加入一个入口：
{ name: "设置课表背景", icon: "/images/scheduleIcon.png", url: "/pages/schedule/schedule?", },新增页面schedule
wxml代码
<view > <view class="cu-bar ev-fr-start" bindtap="BackPage" > <text class="cuIcon-back padding-lr-sm"></text> <view class="action">{{couples? "给Ta设置背景":"设置课表背景"}}</view> </view></view><view wx:if="{{couples}}" class="ev-mainBody"> <view class="ev-fc-center"> <view wx:if="{{!CouplesBG}}" data-type='Couples' bind:tap="modifyImage" class="addBG ev-fc-center"> <text class="cuIcon-roundadd" ></text> <text class="padding-xs" >上传背景</text> </view> <view wx:if="{{CouplesBG}}" class="BGBox ev-fc-center"> <view class="BGImg" data-type='Couples' bind:tap="modifyImage"> <image mode="aspectFill" src="{{CouplesBG}}" /> </view> <view class="round BGState">情侣课表背景</view> </view> </view> <view class="padding-top"> <view class="title">背景开始展示时间</view> <dateTimePicker type="minute" bind:change="TimePicker"> <view class="sendTimeBox ev-fr"> <input type="text" class="sendTime padding-lr" disabled="{{true}}" value="{{sendTime}}" /> <text class="cuIcon-triangledownfill padding-lr-sm"></text> </view> </dateTimePicker> </view> <view class="padding-top"> <view class="title">设置背景展示时长</view> <button wx:for="{{displayTimeList}}" wx:key="index" class="cu-btn round margin-tb {{item.checked ? 'bg-blue':''}} margin-right" data-id="{{index}}" bind:tap="showTime"> {{item.label}} </button> </view> <button bind:tap="saveCouplesBG" disabled="{{!CouplesBG}}" class="cu-btn block bg-blue margin-tb-sm lg saveButton" type=""> 保存 </button></view><view wx:else class="ev-mainBody"> <view> <image class="message" mode="scaleToFill" src="/images/scheduleIcon.png" /> </view> <view> <text class="title">设置课表背景</text> <view class="padding-top-sm tips">用户可上传喜欢的图片作为课表的背景展示(点击图片替换)</view> </view> <view class="ev-fr BGListBox"> <view wx:if="{{dailySchedule}}" class="BGBox ev-fc-center"> <view class="BGImg" data-type='daily' bind:tap="modifyImage"> <image mode="aspectFill" src="{{dailySchedule}}" /> </view> <view class="round BGState">日课表背景</view> </view> <view wx:if="{{!dailySchedule}}" data-type='daily' bind:tap="modifyImage" class="addBG ev-fc-center"> <text class="cuIcon-roundadd" ></text> <text class="padding-xs" >上传日课表背景</text> </view> <view wx:if="{{weeklySchedule}}" class="BGBox ev-fc-center"> <view class="BGImg" data-type='week' bind:tap="modifyImage"> <image mode="aspectFill" src="{{weeklySchedule}}" /> </view> <view class="round BGState">周课表背景</view> </view> <view wx:if="{{!weeklySchedule}}" data-type='week' bind:tap="modifyImage" class="addBG ev-fc-center"> <text class="cuIcon-roundadd" ></text> <text class="padding-xs" >上传周课表背景</text> </view> </view> <button wx:if="{{(weeklySchedule || dailySchedule)}}" bind:tap="saveButton" class="cu-btn block bg-blue margin-tb-sm lg saveButton" type=""> 恢复默认背景 </button></view>js代码
import { scheduleBG, couplesBG, couplesInfoAdd, setbgdefault,} from "../../utils/api/user";//获取应用实例const app = getApp();const dayjs = require("../../utils/dayjs/dayjs.min");import { wxShowToast } from "../../utils/promisify";Page({ data: { StatusBar: app.globalData.StatusBar, CustomBar: app.globalData.CustomBar, ImgUrl: app.globalData.ImgUrl, displayArea: app.globalData.displayArea, CouplesBG: null, // 情侣课表背景 dailySchedule: null, // 日课表背景 weeklySchedule: null, // 周课表背景 sendTime: "现在", // 情侣课表背景开始时间 displayTimeList: [ { label: "一天", checked: false, time: 1, }, { label: "一周", checked: true, time: 7, }, { label: "一个月", checked: false, time: 30, }, ], startTime: null, }, onLoad: function (query) { let { index_bgimage, table_bgimage } = app.globalData.userInfo; this.setData({ couples: query.couples ? query.couples : null, dailySchedule: index_bgimage ? app.globalData.ImgUrl + index_bgimage : null, // 日课表背景 weeklySchedule: table_bgimage ? app.globalData.ImgUrl + table_bgimage : null, // 周课表背景 }); }, BackPage() { wx.navigateBack({ delta: 1, }); }, showTime(e) { let id = e.currentTarget.dataset.id; console.log(e.currentTarget.dataset.id); let displayTimeList = this.data.displayTimeList.map((v, i) => { v.checked = id === i; return v; }); this.setData({ displayTimeList, }); }, modifyImage(e) { let type = e.currentTarget.dataset.type; wx.chooseImage({ count: 1, sizeType: ["compressed"], sourceType: ["album"], success: (res) => { // tempFilePath可以作为img标签的src属性显示图片 const tempFilePaths = res.tempFilePaths; switch (type) { case "week": scheduleBG(tempFilePaths[0], "table").then((v) => { app.getSet(); v.code && wxShowToast(v.msg); this.setData({ weeklySchedule: tempFilePaths[0], }); }); break; case "daily": scheduleBG(tempFilePaths[0], "index").then((v) => { app.getSet(); v.code && wxShowToast(v.msg); this.setData({ dailySchedule: tempFilePaths[0], }); }); break; case "Couples": couplesBG(tempFilePaths[0]).then((v) => { console.log(v); app.getSet(); v.code && wxShowToast(v.msg); this.setData({ CouplesBG: app.globalData.ImgUrl + v.data.imgurl, }); }); break; default: wxShowToast("设置失败,请重试"); break; } }, }); }, saveButton() { this.setData({ dailySchedule: null, weeklySchedule: null, }); setbgdefault().then((v) => { v.code && wxShowToast(v.msg); app.getSet(); }); }, TimePicker(e) { let day = dayjs(e.detail).format("MM月DD日"); let am = dayjs(e.detail).format("A") == "PM" ? "下午" : "上午"; let time = dayjs(e.detail).format("HH:mm"); let sendTime = `${day} ${am} ${time}`; console.log(sendTime, "TimePicker"); this.setData({ sendTime, startTime: dayjs(e.detail), }); }, saveCouplesBG() { let { displayTimeList, startTime, CouplesBG } = this.data; let endType = displayTimeList.filter((v) => v.checked === true)[0]; let _startTime = startTime ? dayjs(startTime) : dayjs(); let endTime = endType.time; let tid = app.globalData.userInfo.lovers_id; if (!tid) { wx.showToast({ title: "保存失败", icon: "none", duration: 2000, }); return; } couplesInfoAdd({ tid, starttime: _startTime.unix(), endtime: endTime, love_sort: 1, contents: CouplesBG.replace(this.data.ImgUrl, ""), }).then((v) => { wxShowToast(v.msg); if (v.code) { app.getSet().then(() => { this.BackPage(); }); } }); },});wss代码
headBox { width: 750rpx; }page { background-color: #fff; }.BGListBox { flex-wrap: wrap; justify-content: space-between; }.BGBox { width: 321rpx; height: 321rpx; border-radius: 34rpx; overflow: hidden; margin-top: 22rpx; } .BGBox .BGImg { width: 321rpx; height: 321rpx; } .BGBox .BGState { position: relative; background: #000000; opacity: 0.5; padding: 10rpx 20rpx; bottom: 50rpx; color: #fff; }.addBG { width: 321rpx; height: 321rpx; margin-top: 22rpx; border: 1rpx dashed #92979d; border-radius: 24rpx; border-radius: 34rpx; }.message { width: 70rpx; height: 70rpx; margin-top: 20rpx; }.title { font-size: 32rpx; font-weight: 500; line-height: 45rpx; color: #282b2f; }.tips { font-size: 24rpx; font-weight: 400; line-height: 33rpx; color: #92979d; }.sendTimeBox { width: 686rpx; height: 90rpx; background: #ffffff; border: 1rpx solid #dfe4ea; border-radius: 14rpx; margin: 24rpx 0; }关于“JS如何实现课程表小程序加入自定义背景功能”这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。
