Crash when you select 30 images about elcimagepickercontroller HOT 3 CLOSED

This happens because ELC tries to keep all those selected images in an array, in memory. iPhone 5, with more memory, is able to keep more images around in memory than the smaller iPhone 4. What you want to do is get the URL to the asset for all selected images from ELC instead of actual images, and then use the AssetsLibrary to get to the actual image from the URL

1. Comment out the following line in ELCImagePickerController.m
   // Do not hold images in the array - crashes when several large images are selected
   // [workingDictionary setObject:[UIImage imageWithCGImage:[[asset defaultRepresentation] fullResolutionImage]] forKey:@"UIImagePickerControllerOriginalImage"];
2. In your implementation of - (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info, do the following:

for(NSDictionary dict in info)
{
NSString mediaType = [dict objectForKey:UIImagePickerControllerMediaType];
NSURL* assetURL = [dict objectForKey:UIImagePickerControllerReferenceURL];

if ([mediaType isEqual:@"ALAssetTypeVideo"])
{
// it's a video
}
else
{
// it's a photo
ALAssetsLibrary *assetslibrary = [[ALAssetsLibrary alloc] init];
[assetslibrary assetForURL:assetURL
resultBlock:resultblock
failureBlock:failureblock];
}
}

ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *asset) {
long long int size = asset.defaultRepresentation.size;
if (size < 20 * 1024 * 1024) {
Byte *buffer = (Byte *) malloc((size_t) size);

                NSError *error = nil;
                NSUInteger k = [asset.defaultRepresentation getBytes:buffer fromOffset:0
                                                              length:(size_t) size error:&error];

                if (k > 0 && !error) {
                    NSData* data = [[NSData alloc] initWithBytesNoCopy:buffer length:k freeWhenDone:YES];
                    // this is the raw image data you can use to get the image
                   UIImage* image = [UIImage alloc] initWithData:data];
                }
                else {
                    NSLog(@"Can not get asset - %@", error);
                }
            }
            else {
                // File is too big to fit into memory. Copy to a temporary file
                // this is just to be safe in case you have images larger than 20MB (makes more sense for videos)
            }

};

from elcimagepickercontroller.

Thanks beta-dawg for the concise explanation, and fixes. The original code will stay the same for now.

from elcimagepickercontroller.

@beta-dawg First thanks for the solution. But the ALAsset I get inside the block is nil, the url is fine, do you have any idea?

from elcimagepickercontroller.