用小程序非自定义tabbar 真机上测试 第一次进入小程序时 切换tabbar会出现黑屏闪烁 为什么

[GHwht]

app.json代码如下

{ "pages": [ { "path": "pages/index" }, { "path": "registration/index", "subPackage": true }, { "path": "service/index" }, { "path": "mine/index" }, { "path": "mine/set/set" }, { "path": "mine/about/about" }, { "path": "mine/paymentHistory/paymentHistory" }, { "path": "mine/service/service" }, { "path": "mine/webview" }, { "path": "TarBar/registration" } ], "window": { "navigationStyle": "custom", "backgroundTextStyle": "light", "navigationBarBackgroundColor": "#fff", "navigationBarTitleText": "WeChat", "navigationBarTextStyle": "black", "onReachBottomDistance": 100 }, "tabBar": { "list": [ { "pagePath": "pages/index", "text": "首页", "iconPath": "/static/img/index.png", "selectedIconPath": "/static/img/index.png" }, { "pagePath": "TarBar/registration", "text": "挂号", "iconPath": "/static/img/registration.png", "selectedIconPath": "/static/img/registration.png" }, { "pagePath": "service/index", "text": "客服", "iconPath": "/static/img/service.png", "selectedIconPath": "/static/img/service.png" }, { "pagePath": "mine/index", "text": "我的", "iconPath": "/static/img/mine.png", "selectedIconPath": "/static/img/mine.png" } ] } }