毕业设计-天气预报微信小程序

//index.js const api = require('../../libs/api'); Page({ data: { citySelected: {}, weatherData: {}, topCity: {}, current: 0 }, /** * 显示天气管理页面 */ showDetailPage: function (event) { // 从属性data-city_code获取数据 let cityAdCode = event.currentTarget.dataset.city_code || ''; wx.navigateTo({ url: '../detail/detail?city_code=' + cityAdCode }) }, /** * 显示城市管理页面 */ showSettingPage: function () { wx.navigateTo({ url: '../setting/setting' }) }, /** * 更新首页顶部的显示的城市信息 * @param event 事件发生后返回的数据 */ updateTopCity: function (event) { let citySelected = wx.getStorageSync('citySelected'); let weatherData = wx.getStorageSync('weatherData'); let topCity = { left: "", center: "", right: "", }; // 获取轮播图中页面的索引 let current = event.detail.current; wx.setStorageSync('currentPage', current); try { if (citySelected[current - 1] !== undefined) { topCity.left = weatherData[citySelected[current - 1]].realtime.city_name; } } catch (e) { console.error(e.message) } try { topCity.center = weatherData[citySelected[current]].realtime.city_name; } catch (e) { console.error(e.message) } try { if (citySelected[current + 1] !== undefined) { topCity.right = weatherData[citySelected[current + 1]].realtime.city_name; } } catch (e) { console.error(e.message) } this.setData({ topCity: topCity, }) }, /** * 获取本地城市adCode和天气数据或者更新天气数据所有城市的天气数据 */ onLoad: function () { let defaultCityAdCode = "local_adCode"; let citySelected = wx.getStorageSync('citySelected') || []; let weatherData = wx.getStorageSync('weatherData') || {}; let that = this; if (citySelected.length === 0) { citySelected.unshift("local_adCode"); wx.setStorageSync('citySelected', citySelected); } if (weatherData.length === 0) { api.getWeatherData(defaultCityAdCode, function (cityAdCode, data) { weatherData[cityAdCode] = data; wx.setStorageSync('weatherData', weatherData); that.setHomeData([cityAdCode], weatherData); }); } else { this.updateWeatherData(); } }, /** * 生命周期函数--监听页面显示 */ onShow: function () { let citySelected = wx.getStorageSync('citySelected'); let weatherData = wx.getStorageSync('weatherData'); this.setHomeData(citySelected, weatherData) wx.setStorageSync('isDetail', false) }, /** * 更新已管理城市的天气数据 */ updateWeatherData() { let citySelected = wx.getStorageSync('citySelected'); let weatherData = wx.getStorageSync('weatherData') || {}; let that = this; for (let idx in citySelected) { let cityAdCode = citySelected[idx]; api.getWeatherData(cityAdCode, function (cityAdCode, data) { weatherData = wx.getStorageSync('weatherData') || {}; weatherData[cityAdCode] = data; wx.setStorageSync('weatherData', weatherData); that.setHomeData(citySelected, weatherData); }); } }, /** * 设置主页数据 * @param citySelected 已经被管理的城市信息 * @param weatherData 天气信息 */ setHomeData: function (citySelected, weatherData) { let isDetail = wx.getStorageSync("isDetail") || false; let removeCount = wx.getStorageSync('removeCount'); if (!isDetail) { let topCity = { left: "", center: "", right: "", }; let currentPage = wx.getStorageSync('currentPage'); if (currentPage == 0 || removeCount >= 2) { try { topCity.center = weatherData[citySelected[0]].realtime.city_name; } catch (e) { console.error('获取顶部中间城市名错误：', e.message) } try { topCity.right = weatherData[citySelected[1]].realtime.city_name; } catch (e) { console.error('获取顶部右边城市名错误：', e.message) } } else { try { topCity.left = weatherData[citySelected[currentPage - 1]].realtime.city_name; } catch (e) { console.error('获取顶部左边城市名错误：', e.message) } try { topCity.center = weatherData[citySelected[currentPage]].realtime.city_name; } catch (e) { console.error('获取顶部中间城市名错误：', e.message) } try { topCity.right = weatherData[citySelected[currentPage + 1]].realtime.city_name; } catch (e) { console.error('获取顶部右边城市名错误：', e.message) } } this.setData({ weatherData: weatherData, topCity: topCity, citySelected: citySelected, }) } }, })