是否可以使用PhoneGap检索现有iPhone图像的元数据（特别是地理定位数据）？ [英] Is it possible to retrive an existing iPhone image's metadata (specifically geolocation data) using PhoneGap?

问题描述

我使用PhoneGap 1.4.1创建iPhone应用程序。我可以成功执行以下任务：
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• 从相册或相机胶卷中检索图像
  
• 用相机拍摄一张新照片


• 检索设备的当前地理位置
  

我的理解是，在iPhone上拍摄的图像包含元数据。我相信元数据包含拍摄照片的地理位置。

我无法在PhoneGap API中找到关于图像元数据的任何内容。
我已经可以检索设备的当前位置，但我需要访问拍摄照片的坐标。

是否可以使用PhoneGap访问存储的iPhone照片地理位置？

解决方案

它目前不是PhoneGap的功能，但您仍然可以在Objective-C中执行此功能。

链接来帮助你做到这一点

UIImagePickerController并从现有照片中提取EXIF数据

向iOS图像添加元数据

< a href =http://code.google.com/p/iphone-exif/ =nofollow noreferrer>谷歌代码：iPhone EXIF

<那么如果你不能用PhoneGap来使用它，你可能会有创建一个PhoneGap插件

I'm using PhoneGap 1.4.1 to create an iPhone application. I can successfully perform the following tasks:

• retrieve an image from a photo album or the camera roll
• take a new image with the camera
• retrieve the current geolocation of the device

It is my understanding that images taken on the iPhone contain metadata. I believe the metadata contains the geolocation of where the picture was taken.

I can't seem to find anything in the PhoneGap API about image metadata. I can already retrieve the device's current location, but I need to access the coordinates of where a picture was taken.

Is it possible to access the stored geolocation of an iPhone photo using PhoneGap?

解决方案

It is not a PhoneGap features at the moment but you can still do it in Objective-C.

Here are some link to help you do it

UIImagePickerController and extracting EXIF data from existing photos

Adding metadata to iOS images

Google code : iPhone EXIF

Then if you can't to use it with PhoneGap, you'll probably have to create a PhoneGap Plugin

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