uni-app uni.getSystemInfo 获取到的 windowHeight 不符合

uni-app uni.getSystemInfo 获取到的 windowHeight 不符合

操作步骤：

uni.getSystemInfo({  
    success: (res) => {  
      this.contentTop = res.safeArea.top  
      this.screenHeight = res.safeArea.height  
      console.log("res: " + JSON.stringify(res));  
    }  
})

预期结果：

{
  "errMsg": "getSystemInfo:ok",
  "brand": "Xiaomi",
  "model": "Redmi K20 Pro Premium Edition",
  "pixelRatio": 2.75,
  "screenWidth": 851,
  "screenHeight": 393,
  "windowWidth": 851,
  "windowHeight": 393,
  "statusBarHeight": 35,
  "language": "zh-CN",
  "system": "11",
  "version": "1.9.9.80770",
  "fontSizeSetting": "",
  "platform": "android",
  "SDKVersion": "",
  "windowTop": 0,
  "windowBottom": 0,
  "safeArea": {
    "left": 0,
    "right": 851,
    "top": 35,
    "bottom": 393,
    "width": 851,
    "height": 358
  },
  "safeAreaInsets": {
    "top": 35,
    "right": 0,
    "bottom": 0,
    "left": 0
  },
  "deviceId": "81EA8531377655EA08F729A46D2882E6"
}

实际结果：

{
  "errMsg": "getSystemInfo:ok",
  "brand": "Xiaomi",
  "model": "Redmi K20 Pro Premium Edition",
  "pixelRatio": 2.75,
  "screenWidth": 851,
  "screenHeight": 393,
  "windowWidth": 851,
  "windowHeight": 393,
  "statusBarHeight": 35,
  "language": "zh-CN",
  "system": "11",
  "version": "1.9.9.80770",
  "fontSizeSetting": "",
  "platform": "android",
  "SDKVersion": "",
  "windowTop": 0,
  "windowBottom": 0,
  "safeArea": {
    "left": 0,
    "right": 851,
    "top": 35,
    "bottom": 393,
    "width": 851,
    "height": 358
  },
  "safeAreaInsets": {
    "top": 35,
    "right": 0,
    "bottom": 0,
    "left": 0
  },
  "deviceId": "81EA8531377655EA08F729A46D2882E6"
}

bug描述：

export default {  
  data() {  
    return {  
      contentTop: 0,  
      contentHeight: 0,  
    };  
  },  
  created() {  
    uni.getSystemInfo({  
      success: (res) => {  
        this.contentTop = res.safeArea.top  
        this.screenHeight = res.safeArea.height  
        console.log("res: " + JSON.stringify(res));  
      }  
    })  
  },  
}

手机底部的白条，没有减去它的高度