Question

我已经创建了照片中所有缩略图图像的集合视图，为此我编写了以下代码：

    var photoAssets: PHFetchResult<PHAsset> = PHFetchResult()

    let allPhotosOptions = PHFetchOptions()
    allPhotosOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)]

    let allPhotosResult = PHAsset.fetchAssets(with: PHAssetMediaType.image, options: allPhotosOptions)

    photoAssets = allPhotosResult

现在我有了PhotoAssets of Array，用于获取我编写代码的每个PHAsset的缩略图：

    let manager = PHImageManager.default()
    let requestOptions = PHImageRequestOptions()
    public var thumbnailSize = CGSize(width: 100, height: 100)
    requestOptions.isSynchronous = true
    requestOptions.isNetworkAccessAllowed = true
    requestOptions.deliveryMode = .highQualityFormat
    requestOptions.resizeMode = .exact

    manager.requestImage(for: selectedAsset, targetSize: self.thumbnailSize, contentMode: PHImageContentMode.aspectFill, options: requestOptions) {
        image, info in
        // here I am getting the thumbnail image this code is running fine.
    }

当我从UICollection视图中选择任何缩略图时，我得到索引并从 photoAssets 数组中获取PHAsset。现在为我的PHAsset创建完整大小的图像，我写了代码：

    let manager = PHImageManager.default()
    let requestOptions = PHImageRequestOptions()
    public var thumbnailSize = CGSize(width: 100, height: 100)
    requestOptions.isSynchronous = true
    requestOptions.isNetworkAccessAllowed = true
    requestOptions.deliveryMode = .highQualityFormat
    requestOptions.resizeMode = .exact
    manager.requestImage(for: selectedAsset, targetSize: PHImageManagerMaximumSize, contentMode: PHImageContentMode.aspectFill, options: requestOptions) {
        image, info in
        //completion(image, info as AnyObject)
        //here i'll get the full size image for requested PHasset 
   }

我的问题是在获取非iCloud设备的全尺寸图像时，我正在获取图像，但对于那些启用了iCould的设备，我得到 image = nil 和创建具有未知类型的图像格式是错误

Answer 1

创建具有未知类型的图像格式是错误

这是xcode中的一个错误，如果选择器可以正确选择并返回图像，这意味着一切正常，只需忽略它。

使用PHAssets时出现此错误：创建具有未知类型的图像格式是一个错误

1 个答案: