小程序webview去掉顶部导航 顶部导航颜色设置

 "window": {
    "backgroundTextStyle": "light",
    "navigationBarBackgroundColor": "#000000",
    "navigationBarTitleText": "",
    "navigationStyle": "custom",
    "navigationBarTextStyle": "black"
  },

注意："navigationBarBackgroundColor": "#000000",要放到"navigationStyle": "custom",上面