How can i get the name of image picked through photo library in iphone?

Question

I am picking an image from photo library in iphone application. How will i retrieve the actual image name.

in .h class

UIImageView * imageView;

UIButton * choosePhotoBtn;

in .m class

-(IBAction) getPhoto:(id) sender 
{
    UIImagePickerController * picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    if((UIButton *) sender == choosePhotoBtn)
    {
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    }
    else 
    { 
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    }
    [self presentModalViewController:picker animated:YES];
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info 
{
    [picker dismissModalViewControllerAnimated:YES];
    imageView.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
}

How will i get the actual name of image ?

I m new in iphone. Please help me.

Thanks in advance.

see this link http://stackoverflow.com/questions/5864814/uiimagepickercontroller-get-the-name-of-the-image-selected-from-photo-library — PRASAD1240, Mar 29 '13 at 09:08
http://stackoverflow.com/questions/5864814/uiimagepickercontroller-get-the-name-of-the-image-selected-from-photo-library — PRASAD1240, Mar 29 '13 at 09:47
@PRASAD1240 why are you posting links of questions that asked later of this question? Please at least check questions date. — Sandeep Singh, Oct 19 '16 at 08:01
Since the comment is older than both the questions that's okay in my opinion. As long as this question does not depend on versions. — buddhiv, Jan 30 '19 at 10:03

score 69 · Accepted Answer · edited May 23 '17 at 12:26

import AssetsLibrary in your file:

#import <AssetsLibrary/AssetsLibrary.h>

And, in - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

put

// get the ref url
NSURL *refURL = [info valueForKey:UIImagePickerControllerReferenceURL];

// define the block to call when we get the asset based on the url (below)
ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *imageAsset)
{
    ALAssetRepresentation *imageRep = [imageAsset defaultRepresentation];
    NSLog(@"[imageRep filename] : %@", [imageRep filename]);
};

// get the asset library and fetch the asset based on the ref url (pass in block above)
ALAssetsLibrary* assetslibrary = [[ALAssetsLibrary alloc] init];
[assetslibrary assetForURL:refURL resultBlock:resultblock failureBlock:nil];

so you'll get the image name in log.

*don't forget to add existing framework: AssetsLibrary.framework Steps:

In the project navigator, select your project
Select your target
Select the 'Build Phases' tab
Open 'Link Binaries With Libraries' expander
Click the '+' button
Select your framework
(optional) Drag and drop the added framework to the 'Frameworks' group

Source: http://www.raywenderlich.com/forums/viewtopic.php?f=2&p=34901 & How to "add existing frameworks" in Xcode 4?

Better than the accepted answer, but the image names are still something like `IMG_1754.JPG`, even for images downloaded by Safari. But this seems to the way it is, Image Capture shows the same names. — Marius Soutier, May 03 '14 at 20:57
deprecated warning in iOS 9. Equiavlent is fetchAssestsWithLocalIdentifiers:options — Husein Behboudi Rad, Oct 14 '15 at 09:21

score 9 · Answer 2 · answered Apr 13 '16 at 00:42

If you are building for iOS 9+ target, you will see a bunch of deprecation warnings with ALAssetsLibrary, i.e.:

'assetForURL(_:resultBlock:failureBlock:)' was deprecated in iOS 9.0: Use fetchAssetsWithLocalIdentifiers:options: on PHAsset to fetch assets by local identifier (or to lookup PHAssets by a previously known ALAssetPropertyAssetURL use fetchAssetsWithALAssetURLs:options:) from the Photos framework instead

As the warning describes, you should use PHAsset. Using swift 2.x, for example, you will need to add import Photos to your file first. Then, in the didFinishPickingMediaWithInfo UIImagePickerControllerDelegate method use fetchAssetsWithALAssetURLs to get the filename:

if let imageURL = info[UIImagePickerControllerReferenceURL] as? NSURL {
    let result = PHAsset.fetchAssetsWithALAssetURLs([imageURL], options: nil)
    let filename = result.firstObject?.filename ?? ""
}

This will set filename to be something like, "IMG_0007.JPG".

Try this: `let fileName = result.firstObject?.value(forKey: "filename") as? String ?? "Unknown"` — parag, Apr 10 '17 at 21:05
By using this code unable to get the filename in ios 11.0. every time it returns nil. any solution? — User558, Oct 26 '17 at 10:54

score 6 · Answer 3 · answered Dec 04 '15 at 15:50

6

Simple Swift implementation:

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {

    if let referenceUrl = info[UIImagePickerControllerReferenceURL] as? NSURL {

        ALAssetsLibrary().assetForURL(referenceUrl, resultBlock: { asset in

            let fileName = asset.defaultRepresentation().filename()
            //do whatever with your file name

            }, failureBlock: nil)
        }
    }
}

Remember about: import AssetsLibrary

answered Dec 04 '15 at 15:50

Bartłomiej Semańczyk

59,234
49
233
358

2

XCode says ALAssetsLibrary is deprecated, use PHPhotoLibrary instead – zulkarnain shah Mar 01 '16 at 09:43
For Swift, its now "import Photos" – colinwong Feb 11 '19 at 02:44

score 5 · Answer 4 · answered Aug 13 '16 at 05:39

In Objective C, use the Photos framework and import Photos/Photos.h

Then, in your imagePickerController function add the following to get the filename of the image from the photo library

NSURL *refURL = [info valueForKey:UIImagePickerControllerReferenceURL];
PHFetchResult *result = [PHAsset fetchAssetsWithALAssetURLs:@[refURL] options:nil];
NSString *filename = [[result firstObject] filename];

score 2 · Answer 5 · answered Jun 27 '12 at 10:38

Though you may be able to retrieve the last path component and use it like a file name, it is not advisable to do so. These filenames are assigned by the system for iTunes to understand while syncing and are not meant for programmers to access as they could be replaced by some other images in future syncs.

A good round about for this is to assign the current Date as filenames, while saving to images picked from the gallery. You may save it in your documents or library directory and use a mapping PList file to map images to their filename.

Alternatively, you can also assign unique numbers as filenames and access the images using these values.

score 1 · Answer 6 · answered May 25 '17 at 11:13

Objective C implementation that works on iOS 10. ALAssetsLibrary seems to be deprecated so you should use PHAsset:

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{

    NSURL *imageURL = [info valueForKey:UIImagePickerControllerReferenceURL];
    PHAsset *phAsset = [[PHAsset fetchAssetsWithALAssetURLs:@[imageURL] options:nil] lastObject];
    NSString *imageName = [phAsset valueForKey:@"filename"];

    UIImage *photo = [info valueForKey:UIImagePickerControllerOriginalImage];

    NSLog(@"Picked image: %@ width: %f x height: %f",imageName, photo.size.width, photo.size.height);

    [picker dismissViewControllerAnimated:YES completion:nil];
}

score 0 · Answer 7 · edited May 23 '17 at 12:26

0

As of Swift 3 and iOS8+ the .filename is not accessible any more. It is still available through self.valueForKey("filename"), but not quite legal though.

However, I found this answer in the question "iOS8 Photos Framework: How to get the name(or filename) of a PHAsset?" to be short, simple, and legal.

edited May 23 '17 at 12:26

Community

1
1

answered Jan 13 '17 at 16:10

Vitalii

4,267
1
40
45

score 0 · Answer 8 · edited Jan 29 '18 at 17:23

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any])
{
    let imageUrl          = info[UIImagePickerControllerReferenceURL] as! NSURL
    let imageName         = imageUrl.lastPathComponent
    let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
    let photoURL          = NSURL(fileURLWithPath: documentDirectory)
    let localPath         = photoURL.appendingPathComponent(imageName!)
    let image             = info[UIImagePickerControllerOriginalImage]as! UIImage
    let data              = UIImagePNGRepresentation(image)

    do
    {
        try data?.write(to: localPath!, options: Data.WritingOptions.atomic)
    }
    catch
    {
        // Catch exception here and act accordingly
    }

    self.dismiss(animated: true, completion: nil);
}

Please add some lines explaining how your code answers the question. — Yannis, Jan 29 '18 at 16:13

Kiran S · Answer 9 · 2018-05-10T13:24:31.470

0

 var fileName: String = "Attachment"

 if let imageURL = info[UIImagePickerControllerReferenceURL] as? URL {

    let assets = PHAsset.fetchAssets(withALAssetURLs: [imageURL], options: nil)
    let assetResource = PHAssetResource.assetResources(for: assets.firstObject!)
    fileName = assetResource.first?.originalFilename ?? "Attachment"
 }
 print(fileName)

edited May 10 '18 at 13:24

answered May 10 '18 at 13:10

Kiran S

403
8
13

How can i get the name of image picked through photo library in iphone?

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