private MediaFile GetPictureMediaFile(ALAsset asset)
{
var rep = asset.DefaultRepresentation;
if (rep == null)
{
return(null);
}
var cgImage = rep.GetImage();
var path = MediaPickerDelegate.GetOutputPath(MediaImplementation.TypeImage,
_options.Directory ?? "temp",
_options.Name);
var image = new UIImage(cgImage, 1.0f, (UIImageOrientation)rep.Orientation);
var percent = 1.0f;
if (_options.PhotoSize != PhotoSize.Full)
{
try
{
switch (_options.PhotoSize)
{
case PhotoSize.Large:
percent = .75f;
break;
case PhotoSize.Medium:
percent = .5f;
break;
case PhotoSize.Small:
percent = .25f;
break;
case PhotoSize.Custom:
percent = (float)_options.CustomPhotoSize / 100f;
break;
}
if (_options.PhotoSize == PhotoSize.MaxWidthHeight && _options.MaxWidthHeight.HasValue)
{
var max = Math.Max(image.CGImage.Width, image.CGImage.Height);
if (max > _options.MaxWidthHeight.Value)
{
percent = (float)_options.MaxWidthHeight.Value / (float)max;
}
}
if (percent < 1.0f)
{
//begin resizing image
image = image.ResizeImageWithAspectRatio(percent);
}
}
catch (Exception ex)
{
Console.WriteLine($"Unable to compress image: {ex}");
}
}
NSDictionary meta = null;
try
{
//meta = PhotoLibraryAccess.GetPhotoLibraryMetadata(asset.AssetUrl);
//meta = info[UIImagePickerController.MediaMetadata] as NSDictionary;
if (meta != null && meta.ContainsKey(ImageIO.CGImageProperties.Orientation))
{
var newMeta = new NSMutableDictionary();
newMeta.SetValuesForKeysWithDictionary(meta);
var newTiffDict = new NSMutableDictionary();
newTiffDict.SetValuesForKeysWithDictionary(meta[ImageIO.CGImageProperties.TIFFDictionary] as NSDictionary);
newTiffDict.SetValueForKey(meta[ImageIO.CGImageProperties.Orientation], ImageIO.CGImageProperties.TIFFOrientation);
newMeta[ImageIO.CGImageProperties.TIFFDictionary] = newTiffDict;
meta = newMeta;
}
var location = _options.Location;
if (meta != null && location != null)
{
meta = MediaPickerDelegate.SetGpsLocation(meta, location);
}
}
catch (Exception ex)
{
Console.WriteLine($"Unable to get metadata: {ex}");
}
//iOS quality is 0.0-1.0
var quality = (_options.CompressionQuality / 100f);
var savedImage = false;
if (meta != null)
{
savedImage = MediaPickerDelegate.SaveImageWithMetadata(image, quality, meta, path);
}
if (!savedImage)
{
image.AsJPEG(quality).Save(path, true);
}
string aPath = null;
//try to get the album path's url
var url = asset.AssetUrl;
aPath = url?.AbsoluteString;
return(new MediaFile(path, () => File.OpenRead(path), albumPath: aPath));
}
static void ResizeAndCompressImage(StoreCameraMediaOptions options, MediaFile mediaFile, string pathExtension)
{
var image = UIImage.FromFile(mediaFile.Path);
var percent = 1.0f;
if (options.PhotoSize != PhotoSize.Full)
{
try
{
switch (options.PhotoSize)
{
case PhotoSize.Large:
percent = .75f;
break;
case PhotoSize.Medium:
percent = .5f;
break;
case PhotoSize.Small:
percent = .25f;
break;
case PhotoSize.Custom:
percent = (float)options.CustomPhotoSize / 100f;
break;
}
if (options.PhotoSize == PhotoSize.MaxWidthHeight && options.MaxWidthHeight.HasValue)
{
var max = Math.Max(image.Size.Width, image.Size.Height);
if (max > options.MaxWidthHeight.Value)
{
percent = (float)options.MaxWidthHeight.Value / (float)max;
}
}
if (percent < 1.0f)
{
//begin resizing image
image = image.ResizeImageWithAspectRatio(percent);
}
}
catch (Exception ex)
{
Console.WriteLine($"Unable to compress image: {ex}");
}
}
NSDictionary meta = null;
if (options.SaveMetaData)
{
try
{
meta = PhotoLibraryAccess.GetPhotoLibraryMetadata(new NSUrl(mediaFile.AlbumPath));
}
catch (Exception ex)
{
Console.WriteLine($"Unable to get metadata: {ex}");
}
}
//iOS quality is 0.0-1.0
var quality = (options.CompressionQuality / 100f);
var savedImage = false;
if (meta != null)
{
savedImage = MediaPickerDelegate.SaveImageWithMetadata(image, quality, meta, mediaFile.Path, pathExtension);
}
if (!savedImage)
{
if (pathExtension == "png")
{
image.AsPNG().Save(mediaFile.Path, true);
}
else
{
image.AsJPEG(quality).Save(mediaFile.Path, true);
}
}
image?.Dispose();
image = null;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
}
private static void ResizeAndCompressImage(StoreCameraMediaOptions options, MediaFile mediaFile, string pathExtension)
{
var image = UIImage.FromFile(mediaFile.Path);
var percent = 1.0f;
if (options.PhotoSize != PhotoSize.Full)
{
try
{
switch (options.PhotoSize)
{
case PhotoSize.Large:
percent = .75f;
break;
case PhotoSize.Medium:
percent = .5f;
break;
case PhotoSize.Small:
percent = .25f;
break;
case PhotoSize.Custom:
percent = (float)options.CustomPhotoSize / 100f;
break;
}
if (options.PhotoSize == PhotoSize.MaxWidthHeight && options.MaxWidthHeight.HasValue)
{
var max = Math.Max(image.Size.Width, image.Size.Height);
if (max > options.MaxWidthHeight.Value)
{
percent = (float)options.MaxWidthHeight.Value / (float)max;
}
}
if (percent < 1.0f)
{
//begin resizing image
image = image.ResizeImageWithAspectRatio(percent);
}
NSDictionary meta = null;
try
{
//meta = PhotoLibraryAccess.GetPhotoLibraryMetadata(asset.AssetUrl);
//meta = info[UIImagePickerController.MediaMetadata] as NSDictionary;
if (meta != null && meta.ContainsKey(ImageIO.CGImageProperties.Orientation))
{
var newMeta = new NSMutableDictionary();
newMeta.SetValuesForKeysWithDictionary(meta);
var newTiffDict = new NSMutableDictionary();
newTiffDict.SetValuesForKeysWithDictionary(meta[ImageIO.CGImageProperties.TIFFDictionary] as NSDictionary);
newTiffDict.SetValueForKey(meta[ImageIO.CGImageProperties.Orientation], ImageIO.CGImageProperties.TIFFOrientation);
newMeta[ImageIO.CGImageProperties.TIFFDictionary] = newTiffDict;
meta = newMeta;
}
var location = options.Location;
if (meta != null && location != null)
{
meta = MediaPickerDelegate.SetGpsLocation(meta, location);
}
}
catch (Exception ex)
{
Console.WriteLine($"Unable to get metadata: {ex}");
}
//iOS quality is 0.0-1.0
var quality = (options.CompressionQuality / 100f);
var savedImage = false;
if (meta != null)
{
savedImage = MediaPickerDelegate.SaveImageWithMetadata(image, quality, meta, mediaFile.Path, pathExtension);
}
if (!savedImage)
{
image.AsJPEG(quality).Save(mediaFile.Path, true);
}
image?.Dispose();
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
}
catch (Exception ex)
{
Console.WriteLine($"Unable to compress image: {ex}");
}
}
}
