geolocation

问题 The W3C Geolocation API (among others) uses DOMTimeStamp for its time-of-fix. This is "milliseconds since the start of the Unix Epoch". What's the easiest way to convert this into a human readable format and adjust for the local timezone? 回答1: One version of the Date constructor takes the number of "milliseconds since the start of the Unix Epoch" as its first and only parameter. Assuming your timestamp is in a variable called domTimeStamp , the following code will convert this timestamp to

问题 I am working on a side project and would like it to be a mobile app with geolocation incorporated. I'd like to start simple, though. Which version of jQuery and jQuery Mobile work best together? I've used some legacy versions on an iPad app, but I would like to know if more recent versions can work actually work together. Alternately, am I better off just using jQuery UI or something like Twitter Bootstrap? Any input on geolocation would be nice too. Input is greatly appreciated, because I

问题 I am working on an app that uses the W3C standard geolocation API but I cannot for the life of me get it to work on Safari on my Windows 7 and XP PC. It works fine on my iPad and my iPhone. It also works perfect on Chrome (5, 6, 7 and the Canary build) and on Firefox (3.6). I don't have a Mac so I can't test it on that. IE doesn't support geolocation yet so that's covered too. I created a stripped down version and I am hosting it on the Google Apps Engine so you can have a look at the code:

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: HTML 5 Geo Location Prompt in Chrome I've been looking at geolocation in Html 5. I'm using Chrome (12) and am accessing the html file using a path like this: file:///C:/_Development/Examples/Html5/boilerplate.html I'm getting the little geolocation icon in the search bar that says that the location has been blocked from tracking your location. Note that I don't have any exceptions setup at all... Can this be

问题 Does the phone need to be connected to the internet all the time, so that the network provider can determine a location? When I test my app on my phone, and in Settings->Location only Use wireless network is checked, and I am not connected to the internet via Wi-Fi, I can not get a location fix. I know there was something that the network provider uses availability of cell tower, but I don't know how that works exactly and should I have full internet access. Please someone make this clear for

问题 With watch I mean using HTML5's native Geolocation watch support. This is meant for a web app, not a native one. Thanks for helping out :D 回答1: You cannot watch the user's location from a Web App in background. I have checked it on Chrome (Android M), and as soon as the Web App goes to background the GPS icon disappears and the watch position process is stopped. (Once the Web App is in the foreground again, the watch process is resumed). The same is happening when the device is locked. The

问题 I'm starting with geocoding, and after read a few things I realize that are some people using the simulator for testing their code. Is that possible!?? Can someone tell which tools use!? (it's better than walking around) Thanks 回答1: XCode 4.2 with iOS 5 now supports "Location simulation" , you can refer it HERE. Steps to use this feature: Build & run your app in iPhone 5.0 Simular . At the top menu bar, you'll find Debug -> Location -> Custom Location.. (or you can choose to use others). Set

问题 I'm starting with geocoding, and after read a few things I realize that are some people using the simulator for testing their code. Is that possible!?? Can someone tell which tools use!? (it's better than walking around) Thanks 回答1: XCode 4.2 with iOS 5 now supports "Location simulation" , you can refer it HERE. Steps to use this feature: Build & run your app in iPhone 5.0 Simular . At the top menu bar, you'll find Debug -> Location -> Custom Location.. (or you can choose to use others). Set

问题 I'm starting with geocoding, and after read a few things I realize that are some people using the simulator for testing their code. Is that possible!?? Can someone tell which tools use!? (it's better than walking around) Thanks 回答1: XCode 4.2 with iOS 5 now supports "Location simulation" , you can refer it HERE. Steps to use this feature: Build & run your app in iPhone 5.0 Simular . At the top menu bar, you'll find Debug -> Location -> Custom Location.. (or you can choose to use others). Set

问题 This question already has an answer here : How to display only one country or a specific area in Google maps using the api? (1 answer) Closed 5 years ago . Is there any way to show only a specific country or region using the google maps API? 回答1: It can be done using GeoMap API. Please check following url for reference. 1) https://code.google.com/apis/ajax/playground/?type=visualization#geo_map 2) https://developers.google.com/chart/interactive/docs/gallery/geomap#regionsexample Here is the