1 Reply
      Latest reply on Nov 19, 2018 10:01 PM by cheesemaker
      Leon1024 Level 1 Level 1 (0 points)

        I have a probabilistic crash in my app, detailed as follows,


        0 CoreFoundation ___exceptionPreprocess + 228
        1 libobjc.A.dylib objc_exception_throw + 56
        2 Photos -[PHPhotoLibrary recordInsertRequest:]
        3 Photos -[PHChangeRequestHelper initWithUUID:objectID:changeRequest:] + 136
        4 Photos -[PHAssetCollectionChangeRequest initWithUUID:objectID:] + 140
        5 Photos +[PHAssetCollectionChangeRequest _changeRequestForAssetCollection:optionalAssets:] + 180


        and my code  detailed as follows,

                __block NSString *localIdentifier = nil;
                [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
                    PHAssetCollectionChangeRequest *collectionRequest = nil;
                    PHFetchResult <PHAssetCollection *>*result = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:nil];
                    for (PHAssetCollection *assetCollection in result) {
                        if ([assetCollection.localizedTitle isEqualToString:albumName]) {
                            if ([assetCollection canPerformEditOperation:PHCollectionEditOperationCreateContent]) {
                                collectionRequest = [PHAssetCollectionChangeRequest changeRequestForAssetCollection:assetCollection];
                } completionHandler:^(BOOL success, NSError * _Nullable error) {

        before run this code, i have the strict logical control to get album permission, and i  have followed the api advice,

        // if the asset collection does not allow the type of change requested, these methods will raise an exception, call canPerformEditOperation: on the asset collection to determine if the type of edit operation is allowed.

        but it is does not work, and the crash are still happened, and  https://forums.developer.apple.com/message/155809#155809

        is not what i wanted.

        Does anyone have the same problems? i really appreciate any help…