tourism-wxapp/nova-tourism/pages/homestay/homestay-detail/index.js

// nova-tourism/pages/homestay/homestay-detail/index.js
Page({

    /**
     * 页面的初始数据
     */
    data: {
        //屏幕高度
        statusBarHeight: 0, // 状态栏高度
        screenHeight: 0, // 屏幕高度
        customHeight: 0, // 自定义导航栏高度（如小程序右上角胶囊按钮）
        bottomNavHeight: 0, // 底部导航栏高度
        contentHeight: 0, // 可用内容高度
        //  轮播图数组
        imageUrls: ['https://tse4-mm.cn.bing.net/th/id/OIP-C.3r1vguZyWFUJ80A2Nf2k3AHaEK?rs=1&pid=ImgDetMain', 'https://ts1.cn.mm.bing.net/th/id/R-C.9881613a29f26488b40938427aa585e4?rik=fim4XvDejjHE%2fQ&riu=http%3a%2f%2fn.sinaimg.cn%2fsinakd20220516ac%2f797%2fw2048h1149%2f20220516%2fb0aa-5aca29fe2dfa69c385118bbc74d039de.jpg&ehk=tzq%2bJP6uMipI0aIHY3bMSVO7lS7ZQM6TKMlwZ5CFP4s%3d&risl=&pid=ImgRaw&r=0', 'https://pic3.zhimg.com/v2-5fb13110e1de13d4c11e6e7f5b8026da_r.jpg', 'https://desk-fd.zol-img.com.cn/t_s960x600c5/g5/M00/02/04/ChMkJ1bKyEyIMaKUAAhskHwWGqUAALIAAM2KsIACGyo249.jpg'],
        index: 1,

    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
        // 计算
        const systemInfo = wx.getSystemInfoSync();
        const statusBarHeight = systemInfo.statusBarHeight || 0;
        const screenHeight = systemInfo.screenHeight || 0;
        const custom = wx.getMenuButtonBoundingClientRect();
        const customHeight = custom.height + 10 + 2 || 0;
        const bottomNavHeight = systemInfo.screenHeight - systemInfo.safeArea.bottom || 0;

        const contentHeight = (screenHeight - bottomNavHeight  - statusBarHeight - customHeight) * 750 / systemInfo.windowWidth;
        if(bottomNavHeight){
            const padding_bottom = bottomNavHeight * 750 / systemInfo.windowWidth
            this.setData({
                bottomNavHeight:padding_bottom
            })
            console.log(this.data.bottomNavHeight);
        }else{
            this.setData({
                bottomNavHeight:40
            })
        }
        
        this.setData({
            statusBarHeight,
            screenHeight,
            customHeight,
            contentHeight
        });
    },

    /**
     * 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 () {

    },

    /**
     * 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 () {

    },

    /**
     * 用户点击右上角分享
     */
    onShareAppMessage: function () {

    },
    //随轮播图变化而变化
    onSwiperChange: function (event) {
        const currentIndex = event.detail.current; // 获取当前索引
        this.setData({
            index: currentIndex + 1
        })
    },
})