I am trying to create a collection list in Photos which will have multiple albums.
The code to create the collection list is as follows:
__block NSString * localId;
NSError *createFolderError;
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
// Create the folder
PHCollectionListChangeRequest *changeRequest = [PHCollectionListChangeRequest creationRequestForCollectionListWithTitle: #"My Photos"];
localId = [[changeRequest placeholderForCreatedCollectionList] localIdentifier];
} completionHandler:^(BOOL success, NSError * _Nullable error) {
if (!success) {
DebugLog(#"Creating My Photos Folder Failed... error : %#", error.description);
return;
}
if(localId) {
//Do something
}
}];
But, getting error as follows:
Error Domain=NSCocoaErrorDomain Code=-1 "(null)"
Earlier, it was creating folder even after getting the error, but now, I see folder not getting created under Photos application.
Let me know if I am doing anything wrong.
EDIT
The folder is getting created in the Photos app each time, but was not reflecting. When Photos App was killed and relaunched, I can see the folder. But still, why the error is shown, remains a question.
Related
My application has function to downloads many photo and video files in tmp folder and save them in camera roll with PHPhotoLibrary API.
The problem is that sometimes (the probability is around 10%) exception happens in the saving process.
The error message in console is,
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'This method can only be
called from inside of -[PHPhotoLibrary performChanges:completionHandler:] or -[PHPhotoLibrary
performChangesAndWait:error:]'
My code is like below:
- (void)saveVideoFileInCameraRoll:(NSString *)videoFilePath
{
NSURL *videoFileUrl = [NSURL fileURLWithPath:videoFilePath];
photoLibrarySaveImageCompletion completion = ^(BOOL success, NSError *error) {
NSLog(#"success=%#, error=%#", (success ? #"YES" : #"NO"), error);
};
NSLog(#"videoFileUrl=%#", videoFileUrl);
[self saveVideoFile:videoFileUrl completion:completion];
}
- (void)saveVideoFile:(NSURL *)fileURL completion:(photoLibrarySaveImageCompletion)completion
{
NSLog(#"fileURL=%#", fileURL);
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
NSLog(#"fileURL=%#", fileURL);
// Exception happens on this line as [SIGABRT]
PHAssetChangeRequest *assetChangeRequest = [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:fileURL];
if (_assetCollection) {
PHAssetCollectionChangeRequest *assetCollectionChangeRequest =
[PHAssetCollectionChangeRequest changeRequestForAssetCollection:self.assetCollection];
[assetCollectionChangeRequest addAssets:#[ [assetChangeRequest placeholderForCreatedAsset] ]];
}
else {
NSLog(#"### assetCollection is nil ###");
}
}
completionHandler:^(BOOL success, NSError *_Nullable error) {
NSLog(#"success=%#, error=%#", (success ? #"YES" : #"NO"), error);
completion(success, error);
}];
}
I checked similar case:
Save image to photo library using photo framework
The case crashes every time, but my code rarely crashes.
And unlike the case I'm calling
[PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:]
in 'performChanges' block
Also I confirmed the fileURL of video file in tmp folder by NSLog and it's OK outside and inside of 'performChanges' block.
fileURL=file:///private/var/mobile/Containers/Data/Application/C87F0F75-E128-4E9F-AE07-6B914939AC5D/tmp/video3.mp4
I would appreciate it if you would let me know the reason or resolution of this issue.
Hi I'm playing with the new photos framework for ios 8.0. I'm trying to delete an array of photos and here is the code:
NSArray *toDeletePhotos = [photos valueForKey:#"asset"];
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
[PHAssetChangeRequest deleteAssets:toDeletePhotos];
} completionHandler:^(BOOL success, NSError *error) {
if (success) {
dispatch_async(dispatch_get_main_queue(), ^{
[self refreshPhotosAfterDeleting];
});
}
}];
I tested this on around 8 devices. 6 of them successfully deleted selected photos and 2 of them returned and error that says: Error Domain=NSCocoaErrorDomain Code=-1 "The operation couldn’t be completed. (Cocoa error -1.)" The two devices I tested on are 6+ and 5s.
I couldn't figure out what error it is and wonder anyone could help me with this. Thanks!
so after a while I solved the problem my self.
It turns out that when photos are streamed/synced from other devices, there's no way you can delete them without deleting them on iTunes/iCoud. So I added a filter so no streamed/synced photos are fetched.
For more information please refer to: https://support.apple.com/en-us/HT204120.
Hope this helps!
I am using setImageData to delete a photo in the following way :
[asset setImageData:nil metadata:nil completionBlock:^(NSURL *assetURL, NSError *error)
{
// Do something
}];
This code was working perfectly fine in iOS 8.2 and earlier versions.
But, in 8.3 it gives the error :
#"Error Domain=ALAssetsLibraryErrorDomain Code=-3311 \"User denied access\" UserInfo=0x175061ac0 {NSLocalizedFailureReason=The user has denied the application access to their media., NSLocalizedDescription=User denied access, NSUnderlyingError=0x17025d700 \"The operation couldn’t be completed. (ALAssetsLibraryErrorDomain error -3311.)\”}"
I tried replacing the image data and metadata fields with some valid image data instead of “nil”. Still it gives the same error!!
Is this some bug in iOS 8.3? Is there any workaround?
Thanks in anticipation.
Another important information :
[PHPhotoLibrary authorizationStatus] returns "PHAuthorizationStatusAuthorized".
[ALAssetsLibrary authorizationStatus] also returns "ALAuthorizationStatusAuthorized".
As far as I know, the setImageData method was never intended to be used as a method for deleting assets. It is possible that on iOS 8.3 Apple patched things up so this no longer works.
I recommend that you look into using the Photos framework which includes a dedicated method for deleting assets.
Here's an example:
-(void)deleteAssetWithURL:(NSString*)assetURLString
{
NSURL *assetURL = [NSURL URLWithString:assetURLString];
if (assetURL == nil)
{
return;
}
PHFetchResult *result = [PHAsset fetchAssetsWithALAssetURLs:#[assetURL] options:nil];
if (result.count > 0)
{
PHAsset *phAsset = result.firstObject;
if ((phAsset != nil) && ([phAsset canPerformEditOperation:PHAssetEditOperationDelete]))
{
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^
{
[PHAssetChangeRequest deleteAssets:#[phAsset]];
}
completionHandler:^(BOOL success, NSError *error)
{
if ((!success) && (error != nil))
{
NSLog(#"Error deleting asset: %#", [error description]);
}
}];
}
}
}
When using the Photos framework, don't forget to link Photos.framework in your target and also import the header in your source file: #import <Photos/Photos.h>
I have a similar problem, and haven't been able to resolve it either. I think its a bug in 8.3 with the AssetsLibrary, and would suggest you submit a bug report to Apple as I have:
Can't edit photo metadata using AssetsLibrary in iOS 8.3 (worked in 8.2)
The user has denied the application access to their media
This explains why you have the error. As far as the system is concerned you don't have access to the photo library.
You need to look at checking the authorization status and requesting if needed as show in the Apple Doc's
You need something like:
if([PHPhotoLibrary authorizationStatus] != PHAuthorizationStatus.PHAuthorizationStatusAuthorized){
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status)
{
if (status != PHAuthorizationStatus.PHAuthorizationStatusAuthorized)
{
//Fail
}
else
{
//SetImageData
}
}
}
I want to save an image (which is downloaded from server) in iOS device photo album and store that image photo album url in local database. My question is, How do i get that photo album image url after saving the image?
I am able to save the image in photo album using the following ALAsset code: But, I need this url image also to be stored in my local db. So next time, i won't download the same image from server and i can load directly from device photo album.
[self.maAssetsLibrary saveImage:image
toAlbum:#"My-Album"
completion:completion
failure:nil];
Please suggest.
UPDATE:
I tried this, but NOT getting me the photo album image URL after saving the image.
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
// The completion block to be executed after image taking action process done
void (^completion)(NSURL *, NSError *) = ^(NSURL *assetURL, NSError *error) {
};
[self.maAssetsLibrary saveImage:image toAlbum:#"My-Album" completion:^(NSURL *assetURL, NSError *error){
if (error) {
NSLog(#"error");
} else {
NSLog(#"url %#", assetURL);
}
} failure:^(NSError *error) {
}];
});
Due to sandboxing you can't get such a url. As #Lord Zsolt proposes in the comment, you can overcome this by saving images in your application's folder. In this case you might e.g. give them a name that serves as key to identify each image.
EDIT
As #MidhunMP commented, I was wrong on that! There is a way (and I'm happy to know that now) and it comes from this Stack Overflow answer, provided by #CRDave in the comment above.
The main point is to use ALAssetsLibrary's writeImageToSavedPhotosAlbum:orientation:completionBlock: method.
It's always nice to learn.
So I am trying to allow two users to swap files that each has in their Google Drive. That involves knowing the ID of the other person's file and using the API calls to retrieve it. Both files sit in folders that have been shared to anyone/public.
Trouble is when I execute the code below I am finding that each user can only use the downloadUrl corresponding to the file they own - the others return a 404. In this case either "mine" or "theirs" depending on the account I'm logged into.
// _driveService and its authorizer setup elsewhere
// Retrieve the metadata then the actual data
NSString *mine = #"0B4Pba9IBDsR3T1NVTC1XSGJTenc";
NSString *theirs = #"0B4n9OyY8tqWpNlNaN1dUc3FsNG8";
NSString *get = [NSString stringWithFormat:#"https://www.googleapis.com/drive/v2/files/%#",theirs];
[_driveService fetchObjectWithURL:[NSURL URLWithString:get] completionHandler:^
(GTLServiceTicket *ticket, GTLDriveFile *file, NSError *error)
{
if (error != nil)
NSLog(#"Error retrieving metadata: %#", error);
else
{
// Download the actual data
GTMHTTPFetcher *fetcher = [_driveService.fetcherService fetcherWithURLString:file.downloadUrl];
[fetcher beginFetchWithCompletionHandler:^
(NSData *data, NSError *error)
{
if (error != nil)
NSLog(#"Error retrieving actual data: %#", error);
else
{
NSString *content = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"Content: %#", content);
}
}];
}
}];
Error retrieving actual data: Error Domain=com.google.HTTPStatus Code=404 "The operation couldn’t be completed. (com.google.HTTPStatus error 404.)"
What am I doing wrong here? If it's a permissions thing, why am I allowed to get the metadata?
Note this is for an iOS app and both files were created and uploaded from the app using the official client API (rev 353).
Hah, so it seems the devil is in the detail I left out of the question. When creating the authorizer the scope I was providing is kGTLAuthScopeDriveFile, which was the default in an example and I forgot all about it when everything else thus far worked fine. Apparently I need to use kGTLAuthScopeDrive instead (the differences are explained here)
The logic seems a bit flawed here though, I mean I don't want access to other files that weren't created with the app, I just want access to a public file somebody else created with the app...