Ytukyg

I find tutorial who make gallery in app with swift I want to show picture in m'y application but it dosen't work.

there is my CollectionController:

import UIKit

import Photos



class CollectionController: UICollectionViewController {



    var imageArray = [UIImage]()



    override func viewDidLoad() {

        grabPhotos()

    }



    func grabPhotos(){



        let imgManager = PHImageManager.default()

        let requestOptions = PHImageRequestOptions()

        requestOptions.isSynchronous = true



        requestOptions.deliveryMode = .opportunistic



        let fetchOptions = PHFetchOptions()

        fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: false)]



        let fetchResult : PHFetchResult = PHAsset.fetchAssets(with: PHAssetMediaType.image, options: fetchOptions)



            if fetchResult.count > 0 {



                for i in 0...fetchResult.count{



                    imgManager.requestImage(for: fetchResult.object(at: i), targetSize: CGSize(width: 200, height: 200), contentMode: .aspectFill, options: requestOptions) {

                        image, error in

                        self.imageArray.append(image!)

                    }

                }

            }

            else{

                print("You don't have photos");

                self.collectionView.reloadData()

            }

    }



    override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

        return imageArray.count

    }



    override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {



        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath)



        let imageView = cell.viewWithTag(1) as! UIImageView



        imageView.image = imageArray[indexPath.row]



        return cell



    }



}

myCell.swift :

import UIKit



class myCell: UICollectionViewCell {



    @IBOutlet weak var myImageView: UIImageView!

}

this code return the following error and I have white screen and Thread 1: signal SIGABRT on the AppDelegate

2018-11-23 17:14:56.499653+0100 My app[1584:453752] *** Terminating app due to uncaught exception 'NSRangeException', reason: '0x28276c900: index (551) beyond bounds (551)'

*** First throw call stack:

(0x212243ef8 0x211411a40 0x212148ac4 0x220fcd434 0x220fee08c 0x1001db530 0x1001db0f4 

    0x1001db128 0x23f189e4c 0x23f18a27c 0x23f261e90 0x23f262438 0x23f27342c 0x23eabfe10 

    0x23eac57ac 0x23f2ecdb8 0x23f2e9364 0x23f2eca34 0x23f2ed3d4 0x23f2ac5fc 0x23f2ac2a8

    0x23f2ef844 0x23f2f0334 0x23f2ef6fc 0x23f2e8a10 0x23eac3ca4 0x23eaf545c 0x214c73890

    0x214c7e658 0x214c7dd50 0x1011c0de4 0x1011c4a2c 0x214cb2640 0x214cb22cc 0x214cb28e8

    0x2121d25b8 0x2121d2538 0x2121d1e1c 0x2121ccce8 0x2121cc5b8 0x214440584 0x23eac7558

    0x1001d62e8 0x211c8cb94)

libc++abi.dylib: terminating with uncaught exception of type NSException

(lldb)

I don't understand why !

Please help me fix the issues.

thanks!!

For the first compiler error, it is saying that you are using the if let condition on the item returning non-optional value.

let fetchResult : PHFetchResult = PHAsset.fetchAssets(with: PHAssetMediaType.image, options: fetchOptions){



    if fetchResult.count > 0 {



        for i in 0...fetchResult.count{



            imgManager.requestImage(for: fetchResult.object(at: i), targetSize: CGSize(width: 200, height: 200), contentMode: .aspectFill, options: requestOptions) {

                image, error in

                self.imageArray.append(image!)



            }



        }



    }

    else{

        print("You don't have photos");

        self.collectionView.reloadData()

    }

Update your code and share the results.