partial void BtnClick(UIKit.UIButton sender)
{
PHFetchResult fetchResults = PHAsset.FetchAssets(PHAssetMediaType.Image, null);
for (int i = 0; i < fetchResults.Count; i++)
{
//fetching Result
PHAsset phAsset = (PHAsset)fetchResults[i];
String fileName = (NSString)phAsset.ValueForKey((NSString)"filename");
PHImageManager.DefaultManager.RequestImageData(phAsset, null, (data, dataUti, orientation, info) =>
{
var path = (info?[(NSString)@"PHImageFileURLKey"] as NSUrl).FilePathUrl.Path;
//Stream stream = System.IO.OpenRead((String)path);
Stream stream = new FileStream(path, FileMode.Open, FileAccess.Read);
});
}
}
static FileResult DictionaryToMediaFile(NSDictionary info)
{
if (info == null)
{
return(null);
}
PHAsset phAsset = null;
NSUrl assetUrl = null;
if (Platform.HasOSVersion(11, 0))
{
assetUrl = info[UIImagePickerController.ImageUrl] as NSUrl;
// Try the MediaURL sometimes used for videos
if (assetUrl == null)
{
assetUrl = info[UIImagePickerController.MediaURL] as NSUrl;
}
if (assetUrl != null)
{
if (!assetUrl.Scheme.Equals("assets-library", StringComparison.InvariantCultureIgnoreCase))
{
return(new UIDocumentFileResult(assetUrl));
}
phAsset = info.ValueForKey(UIImagePickerController.PHAsset) as PHAsset;
}
}
if (phAsset == null)
{
assetUrl = info[UIImagePickerController.ReferenceUrl] as NSUrl;
if (assetUrl != null)
{
phAsset = PHAsset.FetchAssets(new NSUrl[] { assetUrl }, null)?.LastObject as PHAsset;
}
}
if (phAsset == null || assetUrl == null)
{
var img = info.ValueForKey(UIImagePickerController.OriginalImage) as UIImage;
var imgUrl = info.ValueForKey(UIImagePickerController.ImageUrl) as NSString;
if (img != null)
{
var rotatedImg = CorrectImageRotation(img);
return(new UIImageFileResult(rotatedImg ?? img));
}
}
if (phAsset == null || assetUrl == null)
{
return(null);
}
string originalFilename;
if (Platform.HasOSVersion(9, 0))
{
originalFilename = PHAssetResource.GetAssetResources(phAsset).FirstOrDefault()?.OriginalFilename;
}
else
{
originalFilename = phAsset.ValueForKey(new NSString("filename")) as NSString;
}
return(new PHAssetFileResult(assetUrl, phAsset, originalFilename));
}