[TIMOB-3427] Ti API: Provide EXIF data interface
| GitHub Issue | n/a |
|---|---|
| Type | New Feature |
| Priority | Low |
| Status | Closed |
| Resolution | Done |
| Resolution Date | 2017-08-26T19:07:37.000+0000 |
| Affected Version/s | n/a |
| Fix Version/s | n/a |
| Components | TiAPI |
| Labels | n/a |
| Reporter | Ralf Pfeiffer |
| Assignee | Hans Knöchel |
| Created | 2011-04-15T03:45:04.000+0000 |
| Updated | 2018-10-30T07:36:55.000+0000 |
Description
As Exif data is stored in photo files created using the device camera, it can be exploited to simplify apps as the information does not need to be implemented/duplicated using the DB. Hence, propose that access to the data be considered for inclusion in a future release.
This functionality is available for iOS from version 4.0, according to http://developer.appcelerator.com/helpdesk/view/63941.
This request also raised for Android.
I would love this functionality. I maintain an Appcelerator-based app for recording natural history observations (http://itunes.apple.com/us/app/inaturalist/id421397028?mt=8) and several people have asked me to add the ability to add observations from existing photos on their phone, and it would be enormously helpful if I could pull out the datetime and GPS info from the photos. I can't do it without access to EXIF data, though.
I would like to see this feature added as well.
I filed the original HD ticket, which is now [here](http://support.appcelerator.com/tickets/NUL-37132-362) on the new helpdesk. Early this month I filed a follow up ticket [APP-955238](https://support.appcelerator.com/tickets/APP-955238) with a link to [implementation details](http://infinite-sushi.com/2011/02/iphone-and-exif-revisited/) for EXIF and location support. Support staff said they will discuss availability of this feature "early next week" so we should hear some news soon.
Has this Object-C code been converted to a useable Ti.Module? The code looks solid and having access to *[representation metadata]* should give all the access one would need for Exif. While this does't solve the problem for Android, it should be out there for iOS.
Reassigning this popular ticket, due to Reggie's absence.
I've converted this to a TiAPI feature request. Note: This will probably not be implemented in core platform, but may be moved to an external module. This is TBD.
Don, serious cash of baked goods or beverages be the reward for this feature/module. Been needing this for a long time.
Alfred, I'm working on a module for this now. Ping me on twitter at @benCoding in about two weeks.
@Ben, if goods delivered, same reward for you sir.
What is the status of this? There appears to be a great deal of interest, yet not much progress. ETA???
Don, It seems like it would make sense to implement this into the Titanium.Media.openPhotoGallery success callback (as opposed to a TiAPI function). You could pass the EXIF data back in the CameraMediaItemType object. Based on the comments, I think this would satisfy all of the requirements. Thoughts? Thanks, Dave
Please provide a SWAG.
While waiting for an official solution I've built a module which provides simple access to Androids ExifInterface class, and provides a simple utility method to automatically rotate an image, resize it to the appropriate size and compress it as a JPEG in one pass. No solution for iOS yet, and I'm sure it won't help in everybody's situation, but it helps us for the time being. You can find it here: https://github.com/freshheads/fh.imagefactory
Stefan, thank you for the module! Working fine. Now I know how and when to rotate an image taken in portrait mode on different Android phones.
Definitely would like to see this soon. Will this also cover, setting the exif data from you app with Titanium.Media.showCamera? As for now, when you take a picture from your app and you even mirror it to the camera roll, there is either no exif data on the image. Below is the native way for saving exif along with the camera picture on ios from a 3d party app http://stackoverflow.com/questions/10166575/photo-taken-with-camera-does-not-contain-any-alasset-metadata
As a note, there is also this implementation of the functionality: https://github.com/gstreetmedia/Titanium-Mobile-ExifData. Has anyone encountered any limitations using this code?
Given limited feedback on my last comment, assuming that existing module works well enough, so downgrading priority.
This is not a solved problem. Try it with titanium 4.2.1.GA. I'll have a more coherent write up sometime this week. Bottom line, is right now there is no good EXIF solution in titanium at the moment that reliably works with 4.2.1.GA + shows the exif data + shows the gps data. If you can produce an example that satisfies those three requirements, I am all ears.
Hey there! I've made a quick module to get rid of this ticket, try it out [here](https://github.com/hansemannn/titanium-exif). Example:
EXIF.scanEXIFDataFromImage({ image: Ti.Filesystem.getFile('test.jpg').read(), tags: [271], // Array of tags, here: Manufacturer callback: function(e) { Ti.API.warn(e.exif); } });Closed as completed. If this is in error, please reopen.
I have to admit receiving a notification on this post today made me chuckle! It only took 6 years and still doesn't have a fix version attached just some link to other people's modules :(
[~ndastur] It was closed because it is already available, but as a module and not inside the SDK. You can use EXIF without issues since a while, try it out with the above links.
This module crashes an app with 7.4.1.GA SDK. Without any logs, even in trace mode.