Photos and videos are not saving in my custom photo album (TestAlbum). Instead, it is saving in the Camera Roll. Can you kindly help me to identify the issue and help me to correct the code.
PHPhotoLibrary.shared().performChanges({
let albumName = "TestAlbum"
let assetCollection: PHAssetCollection!
let fetchOptions = PHFetchOptions()
PHAssetCollectionChangeRequest.creationRequestForAssetCollection(withTitle: albumName)
fetchOptions.predicate = NSPredicate(format: "title = %#", albumName)
let collection = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: fetchOptions)
if let _: AnyObject = collection.firstObject {
collection.firstObject
}
let options = PHAssetResourceCreationOptions()
options.shouldMoveFile = true
let creationRequest = PHAssetCreationRequest.forAsset()
creationRequest.addResource(with: .video, fileURL: outputFileURL, options: options)
}, completionHandler: { success, error in
if !success {
print("Could not save movie to photo library: \(String(describing: error))")
}
cleanUp()
})
As in the comments above I would separate the creation of the photo album and the saving of your photo/video into two performChanges blocks. But I don't see anyway in your code where you are actually adding the asset (photo/video) to your asset collection (photo album). To do that do as follows
let assetPlaceholder = creationRequest.placeholderForCreatedAsset
let albumChangeRequest = PHAssetCollectionChangeRequest(for:collection)
if let changeRequest = albumChangeRequest, let placeholder = assetPlaceholder {
changeRequest.addAssets(NSArray(array:[placeholder]))
}
Related
I am working on UICollectionView fetching gallery images and shown in UICollectionViewCell but i need to shown all images within one single folder.
Is there any solution for this?
You can try this way.Below code is fetch the "Repost" folder from gallery and fetch all the photos of it.
func getImages() {
image = []
let albumName = "Repost" //album name
let fetchOptions = PHFetchOptions()
var assetCollection = PHAssetCollection()
fetchOptions.predicate = NSPredicate(format: "title = %#", albumName)
let collection:PHFetchResult = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: fetchOptions)
if let _:AnyObject = collection.firstObject{
//found the album
assetCollection = collection.firstObject!
albumFound = true
}
else { albumFound = false
print("album not found")
}
let assets = PHAsset.fetchAssets(in: assetCollection, options: nil) as! PHFetchResult<AnyObject>
assets.enumerateObjects({ (object, count, stop) in
// self.cameraAssets.add(object)
if object.mediaType == .image
{
self.image.append(object as! PHAsset) // for image
}
})
self.image.reverse()
self.imgcollection.reloadData()
}
Don't forgot to import photos framework.
Thanks.
In case you are still struggling to figure out here is the code snippet, good luck
func saveImageToDocumentDirectory(image: UIImage ) {
let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let fileName = "image001.png" // name of the image to be saved
let fileURL = documentsDirectory.appendingPathComponent(fileName)
if let data = UIImageJPEGRepresentation(image, 1.0),!FileManager.default.fileExists(atPath: fileURL.path) {
do {
try data.write(to: fileURL)
print("file saved")
} catch {
print("error saving file:", error)
}
}
}
func loadImageFromDocumentDirectory(nameOfImage : String) -> UIImage {
let nsDocumentDirectory = FileManager.SearchPathDirectory.documentDirectory
let nsUserDomainMask = FileManager.SearchPathDomainMask.userDomainMask
let paths = NSSearchPathForDirectoriesInDomains(nsDocumentDirectory, nsUserDomainMask, true)
if let dirPath = paths.first {
let imageURL = URL(fileURLWithPath: dirPath).appendingPathComponent(nameOfImage)
let image = UIImage(contentsOfFile: imageURL.path)
return image!
}
return UIImage.init(named: "default.png")!
}
I tried to fetch all images from album. It fetches all images with their URL's and image data, but it does not fetch images directly from given URL path, So I need to download images in Document Directory and then get path. So it's taking too much time. I use below code. I want fetch images like iPhone photos library fetches.
Please find error.
func fatchImagesfromAlbum() {
DispatchQueue.global(qos: .background).async {
self.photoAssets = self.fetchResult as! PHFetchResult<AnyObject>
let fetchOptions = PHFetchOptions()
fetchOptions.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.image.rawValue)
self.photoAssets = PHAsset.fetchAssets(in: self.assetCollection, options: fetchOptions) as! PHFetchResult<AnyObject>
for i in 0..<self.photoAssets.count{
autoreleasepool {
let asset = self.photoAssets.object(at: i)
let imageSize = CGSize(width: asset.pixelWidth,
height: asset.pixelHeight)
let options = PHImageRequestOptions()
options.deliveryMode = .fastFormat
options.isSynchronous = true
options.isNetworkAccessAllowed = true
self.imageManager.requestImage(for: asset as! PHAsset, targetSize: imageSize, contentMode: .aspectFill, options: options, resultHandler: { (image, info) -> Void in
if image != nil {
let image1 = image as! UIImage
let imageUrl = info!["PHImageFileURLKey"] as? NSURL
let imageName = imageUrl?.lastPathComponent
let urlString: String = imageUrl!.path!
let theFileName = (urlString as NSString).lastPathComponent
self.imageName.append("\(theFileName)")
self.imagePath.append("\(urlString)")
let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
let photoURL = NSURL(fileURLWithPath: documentDirectory)
let localPath = photoURL.appendingPathComponent(imageName!)
DispatchQueue.global(qos: .background).async {
if !FileManager.default.fileExists(atPath: localPath!.path) {
do {
try UIImageJPEGRepresentation(image1, 0.1)?.write(to: localPath!)
print("file saved")
}catch {
print("error saving file")
}
}
else {
print("file already exists")
}
}
}
})
DispatchQueue.main.async
{
self.collectionView.reloadData()
}
}
}
self.hudHide()
}
PHPhotoLibrary.shared().register(self)
if fetchResult == nil {
let allPhotosOptions = PHFetchOptions()
allPhotosOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]
fetchResult = PHAsset.fetchAssets(with: allPhotosOptions)
}
}
I recommend simply using UIImagePickerController or if your app requires multiple image selection functionality, a third-party library like DKImagePickerController. As another user already mentioned in the comments, these will only copy the image(s) the user selected into your app's directory and save on processing time.
I using AVFoundation to capture photos and to save the photos locally.
I get the data using AVCapturePhotoOutput.jpegPhotoDataRepresentation, but the file size seems to be 3-4x compared to the size when saving using the Photos framework. How can this be?
photoData:
photoData = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: photoSampleBuffer, previewPhotoSampleBuffer: previewPhotoSampleBuffer)
Code saving using Photos Framework:
PHPhotoLibrary.shared().performChanges({ [unowned self] in
let creationRequest = PHAssetChangeRequest.creationRequestForAsset(from: UIImage(data: photoData)!)
creationRequest.creationDate = Date()
if let assetCollection = assetCollection, let assetPlaceholder = creationRequest.placeholderForCreatedAsset {
let albumChangeRequest = PHAssetCollectionChangeRequest(for: assetCollection)
let enumeration: NSArray = [assetPlaceholder]
albumChangeRequest?.addAssets(enumeration)
}
}, completionHandler: { [unowned self] success, error in
}
)
Code saving locally:
try! photoData.write(to: originalFilePath, options: .atomic)
photoData is just Data.
I created an PHAssetCollection to house my photos for my app, and it works fine. However, I am trying to have it so the user can delete the PHAssetCollection when they press a button. How do I go about deleting the entire AssetCollection ("App Folder") that I created in the following code?
Code to create PHAssetCollection:
let albumName = "App Folder"
//Check if the folder exists, if not, create it
let fetchOptions = PHFetchOptions()
fetchOptions.predicate = NSPredicate(format: "title = %#", albumName)
let collection:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Album, subtype: .Any, options: fetchOptions)
if let first_Obj:AnyObject = collection.firstObject{
//found the album
self.albumFound = true
self.assetCollection = first_Obj as! PHAssetCollection
}else{
//Album placeholder for the asset collection, used to reference collection in completion handler
var albumPlaceholder:PHObjectPlaceholder!
//create the folder
NSLog("\nFolder \"%#\" does not exist\nCreating now...", albumName)
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let request = PHAssetCollectionChangeRequest.creationRequestForAssetCollectionWithTitle(albumName)
albumPlaceholder = request.placeholderForCreatedAssetCollection
},
completionHandler: {(success:Bool, error:NSError!)in
if(success){
println("Successfully created folder")
self.albumFound = true
if let collection = PHAssetCollection.fetchAssetCollectionsWithLocalIdentifiers([albumPlaceholder.localIdentifier], options: nil){
self.assetCollection = collection.firstObject as! PHAssetCollection
}
}else{
println("Error creating folder")
self.albumFound = false
}
})
}
PHPhotoLibrary.sharedPhotoLibrary().performChanges({ () -> Void in
PHAssetCollectionChangeRequest.deleteAssetCollections([self.deleteTarget])
}, completionHandler: nil)
There's a class method in PHAssetCollectionChangeRequest called deleteAssetCollections: which does just that: requests that specific asset collections be deleted. Looking at the documentation it seems you can just call this with an array of PHAssetCollections like so:
PHAssetCollectionChangeRequest.deleteAssetCollections(self.assetCollection)
just made it easy to use. hope it helps :
Here's function to delete custom album programmatically with error handeling
func deleteAlbum(albumName: String){
let options = PHFetchOptions()
options.predicate = NSPredicate(format: "title = %#", albumName)
let album = PHAssetCollection.fetchAssetCollections(with: .album, subtype: .any, options: options)
// check if album is available
if album.firstObject != nil {
// request to delete album
PHPhotoLibrary.shared().performChanges({
PHAssetCollectionChangeRequest.deleteAssetCollections(album)
}, completionHandler: { (success, error) in
if success {
print(" \(albumName) removed succesfully")
} else if error != nil {
print("request failed. please try again")
}
})
}else{
print("requested album \(albumName) not found in photos")
}
}
How to Use -
deleteAlbum(albumName: "YourAlbumName")
I am making an app that takes pictures with AVFoundation and I want to save them to a custom album that I can then query and show in my app. (I'd prefer to not have them in the general photo roll, unless the user wants that) I can't really find anything showing how to do this in Swift... or at all. Is there a different way I am supposed to do this?
I found this example on SO but it doesn't make sense to me and I can't get it to work.
func savePhoto() {
var albumFound : Bool = false
var assetCollection: PHAssetCollection!
var photosAsset: PHFetchResult!
var assetThumbnailSize:CGSize!
// Create the album if does not exist (in viewDidLoad)
if let first_Obj:AnyObject = collection.firstObject{
//found the album
self.albumFound = true
self.assetCollection = collection.firstObject as PHAssetCollection
}else{
//Album placeholder for the asset collection, used to reference collection in completion handler
var albumPlaceholder:PHObjectPlaceholder!
//create the folder
NSLog("\nFolder \"%#\" does not exist\nCreating now...", albumName)
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let request = PHAssetCollectionChangeRequest.creationRequestForAssetCollectionWithTitle(albumName)
albumPlaceholder = request.placeholderForCreatedAssetCollection
},
completionHandler: {(success:Bool, error:NSError!)in
NSLog("Creation of folder -> %#", (success ? "Success":"Error!"))
self.albumFound = (success ? true:false)
if(success){
let collection = PHAssetCollection.fetchAssetCollectionsWithLocalIdentifiers([albumPlaceholder.localIdentifier], options: nil)
self.assetCollection = collection?.firstObject as PHAssetCollection
}
})
}
let bundle = NSBundle.mainBundle()
let myFilePath = bundle.pathForResource("highlight1", ofType: "mov")
let videoURL:NSURL = NSURL.fileURLWithPath(myFilePath!)!
let priority = DISPATCH_QUEUE_PRIORITY_DEFAULT
dispatch_async(dispatch_get_global_queue(priority, 0), {
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
//let createAssetRequest = PHAssetChangeRequest.creationRequestForAssetFromImage
let createAssetRequest = PHAssetChangeRequest.creationRequestForAssetFromVideoAtFileURL(videoURL)
let assetPlaceholder = createAssetRequest.placeholderForCreatedAsset
let albumChangeRequest = PHAssetCollectionChangeRequest(forAssetCollection: self.assetCollection, assets: self.photosAsset)
albumChangeRequest.addAssets([assetPlaceholder])
}, completionHandler: {(success, error)in
dispatch_async(dispatch_get_main_queue(), {
NSLog("Adding Image to Library -> %#", (success ? "Sucess":"Error!"))
//picker.dismissViewControllerAnimated(true, completion: nil)
})
})
})
}
Any help/explanations would be great!
This is how I do:
At the top:
import Photos
var image: UIImage!
var assetCollection: PHAssetCollection!
var albumFound : Bool = false
var photosAsset: PHFetchResult!
var assetThumbnailSize:CGSize!
var collection: PHAssetCollection!
var assetCollectionPlaceholder: PHObjectPlaceholder!
Creating the album:
func createAlbum() {
//Get PHFetch Options
let fetchOptions = PHFetchOptions()
fetchOptions.predicate = NSPredicate(format: "title = %#", "camcam")
let collection : PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Album, subtype: .Any, options: fetchOptions)
//Check return value - If found, then get the first album out
if let _: AnyObject = collection.firstObject {
self.albumFound = true
assetCollection = collection.firstObject as! PHAssetCollection
} else {
//If not found - Then create a new album
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let createAlbumRequest : PHAssetCollectionChangeRequest = PHAssetCollectionChangeRequest.creationRequestForAssetCollectionWithTitle("camcam")
self.assetCollectionPlaceholder = createAlbumRequest.placeholderForCreatedAssetCollection
}, completionHandler: { success, error in
self.albumFound = success
if (success) {
let collectionFetchResult = PHAssetCollection.fetchAssetCollectionsWithLocalIdentifiers([self.assetCollectionPlaceholder.localIdentifier], options: nil)
print(collectionFetchResult)
self.assetCollection = collectionFetchResult.firstObject as! PHAssetCollection
}
})
}
}
When saving the photo:
func saveImage(){
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let assetRequest = PHAssetChangeRequest.creationRequestForAssetFromImage(self.image)
let assetPlaceholder = assetRequest.placeholderForCreatedAsset
let albumChangeRequest = PHAssetCollectionChangeRequest(forAssetCollection: self.assetCollection, assets: self.photosAsset)
albumChangeRequest!.addAssets([assetPlaceholder!])
}, completionHandler: { success, error in
print("added image to album")
print(error)
self.showImages()
})
}
Showing the images from that album:
func showImages() {
//This will fetch all the assets in the collection
let assets : PHFetchResult = PHAsset.fetchAssetsInAssetCollection(assetCollection, options: nil)
print(assets)
let imageManager = PHCachingImageManager()
//Enumerating objects to get a chached image - This is to save loading time
assets.enumerateObjectsUsingBlock{(object: AnyObject!,
count: Int,
stop: UnsafeMutablePointer<ObjCBool>) in
if object is PHAsset {
let asset = object as! PHAsset
print(asset)
let imageSize = CGSize(width: asset.pixelWidth, height: asset.pixelHeight)
let options = PHImageRequestOptions()
options.deliveryMode = .FastFormat
imageManager.requestImageForAsset(asset, targetSize: imageSize, contentMode: .AspectFill, options: options, resultHandler: {(image: UIImage?,
info: [NSObject : AnyObject]?) in
print(info)
print(image)
})
}
}
Answer in Objective-C and cleaned up a bit.
__block PHFetchResult *photosAsset;
__block PHAssetCollection *collection;
__block PHObjectPlaceholder *placeholder;
// Find the album
PHFetchOptions *fetchOptions = [[PHFetchOptions alloc] init];
fetchOptions.predicate = [NSPredicate predicateWithFormat:#"title = %#", #"YOUR_ALBUM_TITLE"];
collection = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum
subtype:PHAssetCollectionSubtypeAny
options:fetchOptions].firstObject;
// Create the album
if (!collection)
{
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetCollectionChangeRequest *createAlbum = [PHAssetCollectionChangeRequest creationRequestForAssetCollectionWithTitle:#"YOUR_ALBUM_TITLE"];
placeholder = [createAlbum placeholderForCreatedAssetCollection];
} completionHandler:^(BOOL success, NSError *error) {
if (success)
{
PHFetchResult *collectionFetchResult = [PHAssetCollection fetchAssetCollectionsWithLocalIdentifiers:#[placeholder.localIdentifier]
options:nil];
collection = collectionFetchResult.firstObject;
}
}];
}
// Save to the album
[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
PHAssetChangeRequest *assetRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:[UIImage imageWithData:imageData]];
placeholder = [assetRequest placeholderForCreatedAsset];
photosAsset = [PHAsset fetchAssetsInAssetCollection:collection options:nil];
PHAssetCollectionChangeRequest *albumChangeRequest = [PHAssetCollectionChangeRequest changeRequestForAssetCollection:collection
assets:photosAsset];
[albumChangeRequest addAssets:#[placeholder]];
} completionHandler:^(BOOL success, NSError *error) {
if (success)
{
NSString *UUID = [placeholder.localIdentifier substringToIndex:36];
self.photo.assetURL = [NSString stringWithFormat:#"assets-library://asset/asset.PNG?id=%#&ext=JPG", UUID];
[self savePhoto];
}
else
{
NSLog(#"%#", error);
}
}];
The bit at the end with the UUID was something I found on another StackOverflow thread for creating a replacement for AssetURL property from an ALAsset.
Note: See chris' comment below for more complete answer.
I like to reuse the code I write so I decided to create an extension for PHPhotoLibrary where it is possible to use it like:
PHPhotoLibrary.saveImage(photo, albumName: "Trip") { asset in
guard let asset = asset else {
assert(false, "Asset is nil")
return
}
PHPhotoLibrary.loadThumbnailFromAsset(asset) { thumbnail in
print(thumbnail)
}
}
Here is the code: https://gist.github.com/ricardopereira/636ccd0a3c8a327c43d42e7cbca4d041
As updated for Swift 2.1+ and for Video in case you are trying to do that and ended up here. Compare to the other answers for slight differences (such as using for Images rather than Video)
var photosAsset: PHFetchResult!
var collection: PHAssetCollection!
var assetCollectionPlaceholder: PHObjectPlaceholder!
//Make sure we have custom album for this app if haven't already
let fetchOptions = PHFetchOptions()
fetchOptions.predicate = NSPredicate(format: "title = %#", "MY_APP_ALBUM_NAME")
self.collection = PHAssetCollection.fetchAssetCollectionsWithType(.Album, subtype: .Any, options: fetchOptions).firstObject as! PHAssetCollection
//if we don't have a special album for this app yet then make one
if self.collection == nil {
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let createAlbumRequest : PHAssetCollectionChangeRequest = PHAssetCollectionChangeRequest.creationRequestForAssetCollectionWithTitle("MY_APP_ALBUM_NAME")
self.assetCollectionPlaceholder = createAlbumRequest.placeholderForCreatedAssetCollection
}, completionHandler: { success, error in
if success {
let collectionFetchResult = PHAssetCollection.fetchAssetCollectionsWithLocalIdentifiers([self.assetCollectionPlaceholder.localIdentifier], options: nil)
print(collectionFetchResult)
self.collection = collectionFetchResult.firstObject as! PHAssetCollection
}
})
}
//save the video to Photos
PHPhotoLibrary.sharedPhotoLibrary().performChanges({
let assetRequest = PHAssetChangeRequest.creationRequestForAssetFromVideoAtFileURL(self.VIDEO_URL_FOR_VIDEO_YOU_MADE!)
let assetPlaceholder = assetRequest!.placeholderForCreatedAsset
self.photosAsset = PHAsset.fetchAssetsInAssetCollection(self.collection, options: nil)
let albumChangeRequest = PHAssetCollectionChangeRequest(forAssetCollection: self.collection, assets: self.photosAsset)
albumChangeRequest!.addAssets([assetPlaceholder!])
}, completionHandler: { success, error in
if success {
print("added video to album")
}else if error != nil{
print("handle error since couldn't save video")
}
}
})
I improved on #ricardopereira and #ColossalChris code. Added video to the extension, and added another extension on top of PHAsset to get rid of the compilation errors. Works in Swift 2.1.
Sample usage:
#import "Yourtargetname-Swift.h"//important!
NSURL *videoURL = [[NSURL alloc] initFileURLWithPath:PATH_TO_VIDEO];
[PHPhotoLibrary saveVideo:videoURL albumName:#"my album" completion:^(PHAsset * asset) {
NSLog(#"success");
NSLog(#"asset%lu",(unsigned long)asset.pixelWidth);
}];
Import both swift files:
https://github.com/kv2/PHPhotoLibrary-PhotoAsset.swift
It is usable in objective-c as long as you import the swift header for your target (see the ViewController.m file).