console.log(wx.getSystemInfoSync())

    var screenHeight = wx.getSystemInfoSync().screenHeight

    var safeAreaHeight = wx.getSystemInfoSync().safeArea.height

    var liuhai = wx.getSystemInfoSync().safeArea.top

    var windowHeight = wx.getSystemInfoSync().windowHeight

    var windowWidth = wx.getSystemInfoSync().windowWidth

    var statusBarHeight = wx.getSystemInfoSync().statusBarHeight

    //默认底部横线 = 0

    var bottomLine = 0

    //如果屏幕高度-顶部流海 大于 安全高度，说明底部有横线需要减

    if ((screenHeight - liuhai)> safeAreaHeight)

    {

      bottomLine = screenHeight - liuhai - safeAreaHeight

    }

    console.log("screenHeight", screenHeight)

    console.log("bottomLine", bottomLine)

​

    console.log(wx.getSystemInfoSync())

    //获取窗口高度存储到全局变量px转换为rpx

    app.globalData.heightWindow_G = (windowHeight - bottomLine) * 750 / wx.getSystemInfoSync().windowWidth;

    //状态栏高度80rpx,键盘最小100rpx/键盘显示时670rpx,

    //显示键盘时，收发列表高度

    that.data.scrollHeightKeyboard = app.globalData.heightWindow_G - statusBarHeight - 80 - 670

    //隐藏键盘时，收发列表高度

    that.data.scrollHeightFull = app.globalData.heightWindow_G - statusBarHeight - 80 - 100

    //初次启动，收发列表为隐藏键盘高度

    scrollHeight = that.data.scrollHeightFull