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POHow to save and reload image using ALAsset?
 

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  1. POHow to save and reload image using ALAsset?
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    <p>I'm writing an app that lets users take Photos and assign them to a Device. For this I need to be able to store the URL of the taken Picture and reload the Picture afterwards. </p> <p>I know there have been several discussions on that, but strangely none of the Ansers helped me...</p> <p>So here's my Code for saving an Image:</p> <pre><code>- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { ALAssetsLibrary * library = [[ALAssetsLibrary alloc] init]; UIImage * image; // Request to save Image if ([picker sourceType] == UIImagePickerControllerSourceTypeCamera) { image = [info objectForKey:UIImagePickerControllerEditedImage]; [library writeImageToSavedPhotosAlbum:[image CGImage] orientation:(ALAssetOrientation)[image imageOrientation] completionBlock:^(NSURL * assertURL, NSError * error){ if (error) { UIAlertView * alert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"PictureSaveErrorTitle", @"Title if saving picture fails") message:NSLocalizedString(@"PictureSaveErrorMessage", @"Message if saving picture fails") delegate:nil cancelButtonTitle:NSLocalizedString(@"PictureSaveErrorOK", @"OK if saving picture fails") otherButtonTitles:nil]; [alert show]; } else { [self setUserImage:[assertURL absoluteString]]; [imageOfDevice setImage:image]; } }]; } else { image = [info objectForKey:UIImagePickerControllerOriginalImage]; [self setUserImage:[[info valueForKey:UIImagePickerControllerReferenceURL] path]]; } [self dismissModalViewControllerAnimated:YES]; } </code></pre> <p>And this is for reloading the Image:</p> <pre><code>if (userImage != nil) { ALAssetsLibrary * library = [[ALAssetsLibrary alloc] init]; [library assetForURL:[NSURL fileURLWithPath:userImage] resultBlock:^(ALAsset * asset){ [imageOfDevice setImage:[UIImage imageWithCGImage:[asset thumbnail]]]; } failureBlock:^(NSError * error){ NSLog(@"cannot get image - %@", [error localizedDescription]); }]; } </code></pre> <p>Does anybody see any fault?</p> <p>Thanks for helping,</p> <p>sensslen</p>
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    1. COI'm still looking for anybody with a great Idea to help me I'm still stuck with this silly Problem. Actually this can't be so difficult. There are Plenty of Apps doing something with Photo Library, aren't there?
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