Created
June 15, 2013 08:19
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Get the Last Photo
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| // Link Against Assets Library | |
| // #import <AssetsLibrary/AssetsLibrary.h> | |
| ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init]; | |
| // Enumerate just the photos and videos group by using ALAssetsGroupSavedPhotos. | |
| [library enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos usingBlock:^(ALAssetsGroup *group, BOOL *stop) | |
| { | |
| // Within the group enumeration block, filter to enumerate just photos. | |
| [group setAssetsFilter:[ALAssetsFilter allPhotos]]; | |
| if (group) | |
| { | |
| if ([group numberOfAssets] > 0) | |
| { | |
| [group enumerateAssetsWithOptions:NSEnumerationReverse usingBlock:^(ALAsset *asset, NSUInteger index, BOOL *stop) | |
| { | |
| if (asset) | |
| { | |
| ALAssetRepresentation *representation = [asset defaultRepresentation]; | |
| ALAssetOrientation orientation = [representation orientation]; | |
| UIImage *latestPhoto = [UIImage imageWithCGImage:[representation fullResolutionImage] scale:[representation scale] orientation:(UIImageOrientation)orientation]; | |
| // resize the photo | |
| latestPhoto = [latestPhoto resizedImageWithContentMode:UIViewContentModeScaleAspectFill bounds:self.imagePickerView.frame.size interpolationQuality:kCGInterpolationHigh]; | |
| // post a notification with the image | |
| [[NSNotificationCenter defaultCenter] postNotificationName:@"User Chose Image For Image View Element" object:self.imagePickerView userInfo:@{@"image":latestPhoto}]; | |
| *stop = YES; | |
| } | |
| }]; | |
| } else | |
| { | |
| UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No Photos" | |
| message:@"It appears you do not have any photos" | |
| delegate:nil | |
| cancelButtonTitle:@"Okay" | |
| otherButtonTitles:nil, nil]; | |
| [alert show]; | |
| } | |
| } | |
| } failureBlock: ^(NSError *error) { | |
| // Typically you should handle an error more gracefully than this. | |
| NSLog(@"error: %@", error); | |
| }]; |
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