如何使用新的PHAsset内容在UIImagePickerController上获取iOS上的完整图像URL

Question

你是如何使用新的PHAsset内容在iOS上使用UIImagePickerController获取完整图像的URL，因为ALAssetLibrary的内容已被弃用？

Answer 1

我很难找到答案，所以为了帮助将来的人，这里是我的代码，用于将实际文件URL用于使用内置iOS UIImagePickerController选择的照片。使用ALAsset URL获取PHAsset仍然有点紧张，如果你知道另一种方法，那么请分享。

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
NSURL* sourceURL = [info objectForKey:UIImagePickerControllerReferenceURL];
if (sourceURL != nil) {
    PHAsset* asset = [[PHAsset fetchAssetsWithALAssetURLs:@[sourceURL] options:nil] lastObject];

    PHContentEditingInputRequestOptions* assetOptions = [[PHContentEditingInputRequestOptions alloc] init];
    [assetOptions setNetworkAccessAllowed:false];
    [asset requestContentEditingInputWithOptions:assetOptions 
        completionHandler:^(PHContentEditingInput* contentEditingInput, NSDictionary* info) {
        NSURL* fullImageURL = contentEditingInput.fullSizeImageURL;
        printf("Hey, got the actual image URL: %s\n", [[fullImageURL absoluteString] UTF8String]);
        }];
    }

// ...finish and dismiss the UIImagePickerController
}