ios - 如何像 iOS 中的图库一样仅在 Swift 中访问从相机拍摄的图像？

Question

在 Android 中，我们仅获取相机图像，即当我们以编程方式打开图库时，但在 iOS 中，当我们打开照片时，我们会获取相机胶卷图像和其他不需要的图像，例如 Whatsapp 图像。打开图库时如何过滤仅相机图像？

我在 Swift 4 中尝试过的内容如下所示:

func getPhotosAndVideos()
{
    let fetchOptions = PHFetchOptions()
    fetchOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate",ascending: false)]

    fetchOptions.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.image.rawValue)

    print("fetchOptions : ", fetchOptions)

    let assets = PHAsset.fetchAssets(with: fetchOptions)

    var results = NSMutableArray()
    assets.enumerateObjects { (obj, idx, bool) -> Void in

        results.add(obj)
    }

    let cameraRollAssets = results.filtered(using: NSPredicate(format: "sourceType == %@", argumentArray: [3]))
    results = NSMutableArray(array: cameraRollAssets)

    print("cameraRollAssets : ", cameraRollAssets)

    print("results : ", results)
}

我只想用手机拍摄的相机图像。

Answer 1

嘿，你可以使用苹果默认的 UIImagePickerController() 来做到这一点

class testViewController: UIViewController {
    let picker = UIImagePickerController()
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    @IBAction openPicker(_ sender: UIButton) {
      self.picker.sourceType = .savedPhotosAlbum
      self.picker.delegate = self
      self.present(self.picker, animated: true, completion: nil)
    }
}

---

extension testViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        print(info)
    }
}