我使用 PHLibrary 使用 requestContentEditingInput 获取照片的 URL
asset.requestContentEditingInput(with: PHContentEditingInputRequestOptions()) { (input, _) in
let url = input?.fullSizeImageURL
}
此 URL 打印：file:///Users/josh/Library/Developer/CoreSimulator/Devices/EE65D986-55E7-414C-A73E-D1C96FF17004/data/Media/DCIM/100APPLE/IMG_0005.JPG.
如何检索此图像？我已经尝试了以下但它没有返回任何内容：
var fileLocation = "file:///Users/josh/Library/Developer/CoreSimulator/Devices/EE65D986-55E7-414C-A73E-D1C96FF17004/data/Media/DCIM/100APPLE/IMG_0005.JPG"
let url = URL(string: fileLocation)
let asset = PHAsset.fetchAssets(withALAssetURLs: [url!], options: nil)
if let result = asset.firstObject {
//asset.firstObject does not exist
}
显然，即使开发人员接受了照片使用，苹果也不允许开发人员访问用户照片库中的任何和每张照片。如果您使用的图像不是从 imagePicker 中选取的（即选择库中的最后一张图像），则必须先将图像存储在文档目录中，然后才能使用文档目录 URL。我想这可以防止人们侵入他人的照片库
//Storing the image (in my case, when selecting last photo NOT via imagePicker)
let fileManager = FileManager.default
let paths = (NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as NSString).appendingPathComponent("image01.jpg")
let imageData = UIImageJPEGRepresentation(image!, 1.0)
fileManager.createFile(atPath: paths as String, contents: imageData, attributes: nil)
//Retrieving the image
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("image01.jpg")
if let imageRetrieved = UIImage(contentsOfFile: imageURL.path) {
//do whatever you want with this image
print(imageRetrieved)
}
}
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