navigator

问题 I'm making a web app that needs to check whether user camera access permission has been granted or not using permission query. I have tried the code: navigator.permissions.query({name:'camera'}).then(function(result) { console.log(result); }); It ran fine on Google Chrome 70 but gave me an error on firefox: TypeError: 'name' member of PermissionDescriptor 'camera' is not a valid value for enumeration PermissionName. I have been searching for this issue but nothing helped. Can anyone help me

问题 Since last few months I got the problem to detect countryCode from window.navigator.language. My current language on chrome is French(Switzerland) Currently it return only the language: window.navigator.language: fr It was return language-contryCode: window.navigator.languge: fr-ch I did a lot of try but currently I cannot detect it from chrome browser. Do you have any idea to solve this problem ? updated: This is my current setting: And here is the result from chrome: Hope I will get some

问题 Because of complex logic, I have to render many components when this.props.navigator.push() , slow navigator transitions make app unavailable. then I notice here provide InteractionManager.runAfterInteractions api to solve this problem, I need bring most of components which consumed long time to callback after navigator animation finished, but I don't know where should I call it, maybe a simple example is enough, thanks for your time. 回答1: Here's a full example of what a performant Navigator

问题 Firefox has launched a feature called Tracking protection in v42.0. It blocks several tracking scripts such as Google Analytics, Marketo, LinkedIn, etc. I was trying to detect it through navigator.DoNotTrack , but it returns unspecified in both cases – browsing in regular mode, and browsing in private mode – using Firefox 42.0 on Mac. How can I detect in JavaScript whether a user is viewing the website with the Tracking protection on, since navigator.DoNotTrack fails? 回答1: navigator

问题 What are the exact differences between project explorer, package explorer and navigator in eclipse? I am so confused of using the three. Because all seem to fit the same purpose. I don't know, what the exact difference is. Could anyone explain this to me and suggest which one is better for checking out? 回答1: From the Eclipse Documentation about the Common Navigator Framework: There are currently 3 major navigators in the Eclipse IDE. Project Explorer - This is an instance of the

问题 When popping a screen navigating to other one by clicking on the showBottomSheet, this error is thrown through the following code . I cant get why this is occurring. class _CheckoutButtonState extends State<_CheckoutButton> { final GlobalKey<ScaffoldState> _globalKey = GlobalKey(); final DateTime deliveryTime = DateTime.now().add(Duration(minutes: 30)); final double deliveryPrice = 5.00; @override Widget build(BuildContext context) { SubscriptionService subscriptionService = Provider.of

问题 I have an android application which allows the user to open up google maps or navigator to show a certain address. This functionality was working in the past, but now I get the following error and the app crashes: ERROR/AndroidRuntime(2165): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=google.navigation:q=MCNAMARA+TERMINAL+ROMULUS+MI+48174 } The two intents I'm using are- 1) For Map: String uri = "geo:0,0?q=MCNAMARA

问题 I've got a phonegap (cordova) app running cordova 3.1.0 and when I call navigator.camera.getPicture(success,fail,options) with options as var options={ destinationType: navigator.camera.DestinationType.FILE_URI, sourceType: navigator.camera.PictureSourceType.SAVEDPHOTOALBUM, encodingType: navigator.camera.EncodingType.JPEG, mediaType: navigator.camera.MediaType.Picture } the success callback isn't called after the photo is selected by the user. If I then call navigator.camera.getPicture

问题 Is it possible to get the geolocation of a user without the browser prompt? Here's the code sample from W3 <script> var x = document.getElementById("demo") function getLocation(){ if(navigator.geolocation){ navigator.geolocation.getCurrentPosition(showPosition); } else { x.innerHTML="Geolocation is not supported by this browser.";} } function showPosition(position){ x.innerHTML="Latitude: " + position.coords.latitude + "<br>Longitude: " + position.coords.longitude; } </script> Is there any

问题 I'm trying to use NavigatorIOS so in my index.ios.js I got: 'use strict'; var React = require('react-native'); var Home = require('./App/Components/Home'); var { AppRegistry, StyleSheet, NavigatorIOS } = React; var styles = StyleSheet.create({ container:{ flex: 1, backgroundColor: '#111111' } }); class ExampleApp extends React.Component{ render() { return ( <NavigatorIOS style={styles.container} initialRoute={{ title: 'example', component: Home }} /> ); } }; AppRegistry.registerComponent(