移动GPS网络应用程序 [英] Mobile GPS web application

问题描述

我需要开发一个网络应用程序。 （PHP）的手机100％，需要从手机GPS获取信息，以获得用户的当前位置。我的问题是，我应该怎么做？

我知道PHP，但我对GPS部分完全无能为力（之前从未与他们合作过）。我正在寻找的是抬头看看我是否可以处理这项工作，或只是拒绝它。

我听说W3地理定位API做得非常好，但在测试之后，我并不确信精确度和浏览器支持。我不想使用谷歌的齿轮，因为它必须先下载。

我确实认为< W3C地理定位API 是一个很好的开始：它越来越被接受手机，是一个开放的标准，并将所有特定于设备的API抽象出来。

的确，准确性可能不够完美，但这是因为手机本身可能不是总是知道它在哪里。该API为您提供了一些解决此问题的方法：如果您需要高精确度，则可以通过 enableHighAccuracy 标志并设置一个很长的超时参数，以允许设备使用GPS查找位置。此外，所有位置均以95％的置信度返回精度值 - 如果错误过高（通常电​​话会在第一次请求时返回高错误），您可以再次请求位置，指定您不想要一个缓存的位置。

I need to develop a web app. (PHP) 100% for mobile phones and need to get the information from the mobile phone GPS, in order to get the user's current position. My question is, what should I do?

I know PHP but I'm completely clueless about the GPS part (never worked with them before). All i'm looking is for headsup to see if I can handle the job or just reject it.

I've heard that the W3 geolocation API does a very good job but after testing it i'm not convinced about the accuracy and browser support. I don't want to use Google's gears due to the fact that it must be downloaded first.

解决方案

I do think the W3C Geolocation API is a good place to start: it has growing acceptance on mobile phones, is an open standard and abstracts away all the device-specific APIs.

It's true that the accuracy may not be perfect, but that's because the phone itself may not always know perfectly where it is. The API gives you a couple ways to work around this: if you need high accuracy, you can hint to the device that you want an accurate result even at the cost of power/time with the enableHighAccuracy flag and set a long timeout parameter to allow the device to use GPS to find a location. Also, all positions are returned with an accuracy value for 95% confidence -- if the error is too high (often phones will return a high error on the first request), you can request the location again, specifying that you don't want a cached location.

这篇关于移动GPS网络应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！