ALAssetsLibrary+CustomPhotoAlbum iOS 9

Question

我更新了应用程序以支持iOS9，在iOS9中不再支持的AlAssets库出现错误，需要你PHPhotoLibrary。

请对更新代码以支持IOS 9所需的更改提出任何建议

   //
//  ALAssetsLibrary category to handle a custom photo album
//
//  Created by Marin Todorov on 10/26/11.
//  Copyright (c) 2011 Marin Todorov. All rights reserved.
//

#import "ALAssetsLibrary+CustomPhotoAlbum.h"

@implementation ALAssetsLibrary(CustomPhotoAlbum)

-(void)saveImage:(UIImage*)image toAlbum:(NSString*)albumName withCompletionBlock:(SaveImageCompletion)completionBlock
{
    //write the image data to the assets library (camera roll)
    [self writeImageToSavedPhotosAlbum:image.CGImage orientation:(ALAssetOrientation)image.imageOrientation 
                        completionBlock:^(NSURL* assetURL, NSError* error) {

                          //error handling
                          if (error!=nil) {
                              completionBlock(error,assetURL);
                              return;
                          }

                          //add the asset to the custom photo album
                          [self addAssetURL: assetURL 
                                    toAlbum:albumName 
                        withCompletionBlock:completionBlock];

                      }];
}

-(void)addAssetURL:(NSURL*)assetURL toAlbum:(NSString*)albumName withCompletionBlock:(SaveImageCompletion)completionBlock
{
    __block BOOL albumWasFound = NO;

    //search all photo albums in the library
    [self enumerateGroupsWithTypes:ALAssetsGroupAlbum 
                        usingBlock:^(ALAssetsGroup *group, BOOL *stop) {

                            //compare the names of the albums
                            if ([albumName compare: [group valueForProperty:ALAssetsGroupPropertyName]]==NSOrderedSame) {

                                //target album is found
                                albumWasFound = YES;

                                //get a hold of the photo's asset instance
                                [self assetForURL: assetURL 
                                      resultBlock:^(ALAsset *asset) {

                                          //add photo to the target album
                                          [group addAsset: asset];

                                          //run the completion block
                                          completionBlock(nil,assetURL);

                                      } failureBlock:^(NSError *error){ completionBlock(error,nil);}];

                                //album was found, bail out of the method
                                return;
                            }

                            if (group==nil && albumWasFound==NO) {
                                //photo albums are over, target album does not exist, thus create it

                                __weak ALAssetsLibrary* weakSelf = self;

                                //create new assets album
                                [self addAssetsGroupAlbumWithName:albumName 
                                                      resultBlock:^(ALAssetsGroup *group) {

                                                          //get the photo's instance
                                                          [weakSelf assetForURL: assetURL 
                                                                        resultBlock:^(ALAsset *asset) {

                                                                            //add photo to the newly created album
                                                                            [group addAsset: asset];

                                                                            //call the completion block
                                                                            completionBlock(nil,assetURL);

                                                                        } failureBlock: ^(NSError *error){ completionBlock(error,nil);}];

                                                      } failureBlock: ^(NSError *error){ completionBlock(error,nil);}];

                                //should be the last iteration anyway, but just in case
                                return;
                            }

                        } failureBlock: ^(NSError *error){ completionBlock(error,nil);}];

}

@end

Answer 1

ALAssetLibrary在iOS 9上被弃用，我认为它甚至在iOS 9上也不能正常工作，所以似乎ALAssets的访问在这里不再可用。

如果有人做了不同的体验，或者找到了解决办法，我会很感激。