ios - 从网上下载图片时如何找到 "UIImagePickerControllerOriginalImage"和 "UIImagePickerControllerReferenceURL"

Question

我想在下载图像并将图像保存到相册时获取 UIImagePickerControllerOriginalImage 和 UIImagePickerControllerReferenceURL..

谁能建议找到这两个参数的正确方法？

如果我使用方法“

[library writeImageToSavedPhotosAlbum:[viewImage CGImage] orientation:(ALAssetOrientation)[viewImage imageOrientation] completionBlock:^(NSURL *assetURL, NSError *error)

我会得到“UIImagePickerControllerReferenceURL”如果我使用

UIImageWriteToSavedPhotosAlbum([UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:self.imageURL]]], testOriginalImage, @selector(image:didFinishSavingWithError:contextInfo:), nil)

我会得到“UIImagePickerControllerOriginalImage”

怎么做才能同时获得这两者？

Answer 1

如果你调用:

[library writeImageToSavedPhotosAlbum:[viewImage CGImage] orientation:(ALAssetOrientation)[viewImage imageOrientation] completionBlock:^(NSURL *assetURL, NSError *error)

然后你会得到/拥有两者。 assetURL 是 UIImagePickerControllerReferenceURL，viewImage 与 UIImagePickerControllerOriginalImage 相同。