CODEWITHSUNDEEP
objective-calassetslibrary
Hieicker
Hieicker

Reputation: 595

Objective-C/ALAssetslibrary - How retrieve the correct path of the assets

I have implemented a simple method that find the path of the images inside the device. Actually i'm using the iPhone Simulator. This is the code that i'm using:

[library enumerateGroupsWithTypes:ALAssetsGroupAll usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
    if (group) {
        [group setAssetsFilter:[ALAssetsFilter allPhotos]];
        [group enumerateAssetsUsingBlock:^(ALAsset *asset, NSUInteger index, BOOL *stop){
            if (asset){
                NSString *description = [asset description];
                NSRange first = [description rangeOfString:@"URLs:"];
                NSRange second = [description rangeOfString:@"?id="];
                NSString *path = [description substringWithRange: NSMakeRange(first.location + first.length, second.location - (first.location + first.length))];
                [idList addObject:path];
            }
        }];
    }        
    } failureBlock:^(NSError *error) {
        NSLog(@"error enumerating AssetLibrary groups %@\n", error);
    }
  ];
});

At this point, if i log the path of the images i'm receiving this: "assets-library://asset/asset.JPG", that for what i know isn't the entire path with the exactly position of the image. Are you ok? So, how can i obtain the entire path of the asset?

Thanks

Upvotes: 4

Views: 2204

Answers (1)

serrrgi
serrrgi

Reputation: 634

You are not retrieving the URL properly from the asset description.

Consider using ALAsset valueForProperty: to ease your task.

NSURL *url = [asset valueForProperty:ALAssetPropertyAssetURL];

You can later use the url to retrieve the asset from the library by using ALAssetsLibrary assetForURL:

[library assetForURL:self.url resultBlock:^(ALAsset *asset) {

    } failureBlock:^(NSError *error) {

    }];

Upvotes: 1

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