How to fetch all photos from library

Question

The code shown below is what i've tried already.What I wish to achieve is to fetch all the photos from the device.Currently only a few are being fetched.How to modify the code so as to load all the images from device?

let fetchOptions = PHFetchOptions()

let collection:PHFetchResult = PHAssetCollection.fetchAssetCollectionsWithType(.Moment, subtype: .Any, options: fetchOptions)

if let first_Obj:AnyObject = collection.firstObject
{
    self.assetCollection = first_Obj as! PHAssetCollection
}

you're only looking at the first value in the result. Why not look at all the values in the result? Have you checked the `count`? — Rob Napier, Jun 27 '16 at 17:42
You also are fetching collections when you seem to be interested in assets. — rickster, Jun 27 '16 at 18:14

CodeBender · Accepted Answer · 2018-04-10T14:58:39.843

24

Updated David's answer for iOS 10+ & Swift 4.x/3.x:

Request permission from the device to access photos:

Add the following value to your info.plist

Privacy - Photo Library Usage Description

And provide a string that is shown to the user.

Request all images:

PHPhotoLibrary.requestAuthorization { status in
    switch status {
    case .authorized:
        let fetchOptions = PHFetchOptions()
        let allPhotos = PHAsset.fetchAssets(with: .image, options: fetchOptions)
        print("Found \(allPhotos.count) assets")
    case .denied, .restricted:
        print("Not allowed")
    case .notDetermined:
        // Should not see this when requesting
        print("Not determined yet")
    }
}

edited Apr 10 '18 at 14:58

answered Jun 19 '17 at 18:24

CodeBender

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This works, but it will crash if you don't add "Privacy - Photo Library Usage Description" to info.plist – Mr Stanev Jul 27 '17 at 15:45
@MrStanev That is actually noted at the top of the answer under "Request permission from the device to access photos" – CodeBender Jul 27 '17 at 15:54
@CodeBender Is it possible to fetch with limit? Can we make pagination? – Dipang Aug 23 '17 at 05:03
@Dipang Yes, you can use a combination of sortDescriptors, fetchLimits and a predicate to get what you want. – CodeBender Aug 23 '17 at 17:46

score 1 · Answer 2 · edited Apr 10 '18 at 15:01

1

All photos is pretty easy, but you need to ensure that you're authorized first. Here's some simple code to demonstrate:

PHPhotoLibrary.requestAuthorization { (status) in
    switch status
    {
    case .Authorized:
        print("Good to proceed")
        let fetchOptions = PHFetchOptions()
        let allPhotos = PHAsset.fetchAssetsWithMediaType(.Image, options: fetchOptions)
        print("Found \(allPhotos.count) images")
    case .Denied, .Restricted:
        print("Not allowed")
    case .NotDetermined:
        print("Not determined yet")
    }
}

On my phone this returns 25750 items. On a fresh simulator, this should yield 5 images.

edited Apr 10 '18 at 15:01

ColdFire

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answered Jun 27 '16 at 19:07

David S.

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what is the type of allPhotos?? – Vineeth Krishnan Jun 28 '16 at 08:55
If you enter the code, and control-click on the fetchAssetsWithMediaType function, you will see that it is a PHFetchResult. https://developer.apple.com/library/ios/documentation/Photos/Reference/PHFetchResult_Class/index.html – David S. Jun 28 '16 at 12:47

How to fetch all photos from library

2 Answers2

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