void PhotoEnumerator(ALAsset result, nint index, ref bool stop)
{
if (result == null)
{
return;
}
ELCAsset elcAsset = new ELCAsset(this, result);
bool isAssetFiltered = false;
/*if (self.assetPickerFilterDelegate &&
* [self.assetPickerFilterDelegate respondsToSelector:@selector(assetTablePicker:isAssetFilteredOut:)])
* {
* isAssetFiltered = [self.assetPickerFilterDelegate assetTablePicker:self isAssetFilteredOut:(ELCAsset*)elcAsset];
* }*/
if (result.DefaultRepresentation == null)
{
isAssetFiltered = true;
}
if (!isAssetFiltered)
{
ElcAssets.Add(elcAsset);
}
}
/// <summary>
/// Synchronouses the get asset.
/// </summary>
/// <returns>The get asset.</returns>
/// <param name="filename">Filename.</param>
public ALAsset SynchronousGetAsset(string filename)
{
ManualResetEvent waiter = new ManualResetEvent(false);
NSError error = null;
ALAsset result = null;
Exception exception;
ThreadPool.QueueUserWorkItem((object state) => _assetLibrary.AssetForUrl(new NSUrl(filename), (ALAsset asset) =>
{
result = asset;
waiter.Set();
},
e =>
{
error = e;
waiter.Set();
}));
if (!waiter.WaitOne(TimeSpan.FromSeconds(10)))
{
throw new Exception("Error Getting Asset : Timeout, Asset=" + filename);
}
if (error != null)
{
throw new Exception(error.Description);
}
return(result);
}
private bool SelectImageIfPossible(ALAsset asset, int sectionIndex)
{
if (SelectedImages.Count == 10)
{
SetToasterText("You can select a maximum of 10 images");
return(false);
}
SelectedImages.Add(asset);
UpdateNavigationBar();
bool allSectionImageSelected = true;
foreach (var image in Sections[sectionIndex].Images)
{
if (!SelectedImages.Contains(image.Asset))
{
allSectionImageSelected = false;
break;
}
}
if (allSectionImageSelected)
{
Sections[sectionIndex].Selected = true;
using (var headerKind = new NSString("UICollectionElementKindSectionHeader"))
{
if (CollectionView.GetSupplementaryView(headerKind, NSIndexPath.FromItemSection(0, sectionIndex)) is SelectableDateCollectionHeaderView header)
{
header.UpdateSelectedState(true, true);
}
}
}
return(true);
}
public static void setCurrentPhotoToIndex(int index)
{
currentAsset = photoAssets [index];
ALAssetRepresentation rep = currentAsset.RepresentationForUti("public.jpeg");
CGImage imageRef = rep.GetFullScreenImage();
if (imageRef != null)
{
currentPhotoImage = UIImage.FromImage(imageRef);
currentPhotoIndex = index;
}
}
bool ShouldSelectAsset(ALAsset asset, int previousCount)
{
var shouldSelect = MaximumImagesCount <= 0 || previousCount < MaximumImagesCount;
if (!shouldSelect)
{
string title = String.Format("Only {0} photos please!", MaximumImagesCount);
string message = String.Format("You can only send {0} photos at a time.", MaximumImagesCount);
var alert = new UIAlertView(title, message, null, null, "Ok");
alert.Show();
}
return(shouldSelect);
}
/// <summary>
/// Assets the enumerator.
/// </summary>
/// <param name="asset">Asset.</param>
/// <param name="index">Index.</param>
/// <param name="shouldStop">Should stop.</param>
private void AssetEnumerator(ALAsset asset, nint index, ref bool shouldStop)
{
if (asset == null)
{
shouldStop = true;
return;
}
if (!shouldStop)
{
// add asset name to list
_assets.Add(asset.AssetUrl.ToString());
shouldStop = false;
}
}
/// <summary>
/// A simple asset enumerator that adds the asset to our asset list
/// </summary>
protected void AssetEnumerator (ALAsset asset, nint index, ref bool stop)
{
// when the enumeration is completed, this method is invoked with group set to null
if(asset != null) {
Console.WriteLine ("Found asset: " + index.ToString ());
// add the asset to the group list
assetGroups[currentGroup].Add (asset);
// keep going
stop = false;
//Console.WriteLine(asset.AssetType.ToString());
}
else
Console.WriteLine("Asset enumeration completed.");
}
public AssetImage(ALAsset asset)
{
Asset = asset;
Date = asset.Date.ToDateTime().Date;
if (Asset.Thumbnail != null)
{
Thumbnail = Asset.Thumbnail;
}
else
{
var rep = Asset.DefaultRepresentation;
if (rep != null)
{
Thumbnail = rep.GetFullScreenImage();
}
}
}
private void AssetEnumerator(ALAsset asset, nint index, ref bool shouldStop)
{
if (asset == null)
{
shouldStop = true;
return;
}
if (!shouldStop)
{
var picture = new Picture {
ThumbnailHandle = asset.Thumbnail.Handle,
Uri = asset.AssetUrl.ToString()
};
pictures.Add(picture);
shouldStop = false;
}
}
private void UnselectImage(ALAsset asset, int sectionIndex)
{
SelectedImages.Remove(asset);
UpdateNavigationBar();
if (!Sections[sectionIndex].Selected)
{
return;
}
Sections[sectionIndex].Selected = false;
using (var headerKind = new NSString("UICollectionElementKindSectionHeader"))
{
if (CollectionView.GetSupplementaryView(headerKind, NSIndexPath.FromItemSection(0, sectionIndex)) is SelectableDateCollectionHeaderView header)
{
header.UpdateSelectedState(false, true);
}
}
}
public static void setCurrentPhotoToIndex(int index)
{
currentAsset = photoAssets [index];
ALAssetRepresentation rep = currentAsset.RepresentationForUti("public.jpeg");
// image might not be available as a JPEG
if (rep == null)
{
return;
}
CGImage imageRef = rep.GetFullScreenImage();
if (imageRef == null)
{
return;
}
currentPhotoImage = UIImage.FromImage(imageRef);
currentPhotoIndex = index;
}
private void PhotoEnumerator(ALAsset result, nint index, ref bool stop)
{
if (result == null)
{
return;
}
var isAssetFiltered = false;
if (result.DefaultRepresentation == null)
{
isAssetFiltered = true;
}
if (!isAssetFiltered)
{
assets.Add(result);
}
}
/// <summary>
/// A simple asset enumerator that adds the asset to our asset list
/// </summary>
protected void AssetEnumerator(ALAsset asset, nint index, ref bool stop)
{
// when the enumeration is completed, this method is invoked with group set to null
if (asset != null)
{
Console.WriteLine("Found asset: " + index.ToString());
// add the asset to the group list
assetGroups[currentGroup].Add(asset);
// keep going
stop = false;
//Console.WriteLine(asset.AssetType.ToString());
}
else
{
Console.WriteLine("Asset enumeration completed.");
}
}
bool ShouldSelectAsset(ALAsset asset, int previousCount)
{
var shouldSelect = MaximumImagesCount <= 0 || previousCount < MaximumImagesCount;
if (!shouldSelect)
{
var first = NSBundle.MainBundle.GetLocalizedString("Only", "Only");
var second = NSBundle.MainBundle.GetLocalizedString("photos please", "photos please!");
var title = $"{first} {MaximumImagesCount} {second}";
var third = NSBundle.MainBundle.GetLocalizedString("You can only send", "You can only send");
var fourth = NSBundle.MainBundle.GetLocalizedString("photos at a time", "photos at a time.");
var message = $"{third} {MaximumImagesCount} {fourth}";
var alert = new UIAlertView(title, message, null, null, NSBundle.MainBundle.GetLocalizedString("Okay", "Okay"));
alert.Show();
}
return(shouldSelect);
}
bool ShouldSelectAsset(ALAsset asset, int previousCount)
{
var shouldSelect = MaximumImagesCount <= 0 || previousCount < MaximumImagesCount;
if (!shouldSelect)
{
var first = NSBundle.MainBundle.LocalizedString("Only", "Only");
var second = NSBundle.MainBundle.LocalizedString("photos please", "photos please!");
string title = String.Format("{0} {1} {2}", first, MaximumImagesCount, second);
var third = NSBundle.MainBundle.LocalizedString("You can only send", "You can only send");
var fourth = NSBundle.MainBundle.LocalizedString("photos at a time", "photos at a time.");
string message = String.Format("{0} {1} {2}", third, MaximumImagesCount, fourth);
var alert = new UIAlertView(title, message, null, null, NSBundle.MainBundle.LocalizedString("Okay", "Okay"));
alert.Show();
}
return(shouldSelect);
}
/// <summary>
/// Initializes a new instance of the <see cref="Gallery.iOS.PhotoController"/> class.
/// </summary>
public PhotoController(ALAsset asset) : base("PhotoController", null)
{
_imageView = new UIImageView()
{
TranslatesAutoresizingMaskIntoConstraints = false,
ContentMode = UIViewContentMode.ScaleAspectFit
};
_titleLabel = new UILabel()
{
TranslatesAutoresizingMaskIntoConstraints = false,
};
_dateLabel = new UILabel()
{
TranslatesAutoresizingMaskIntoConstraints = false,
};
_imageView.Image = new UIImage(asset.DefaultRepresentation.GetFullScreenImage());
_titleLabel.Text = asset.DefaultRepresentation.Filename;
_dateLabel.Text = asset.Date.ToString();
}
private MediaFile GetPictureMediaFile(ALAsset asset, long index = 0)
{
var rep = asset.DefaultRepresentation;
if (rep == null)
{
return(null);
}
var cgImage = rep.GetImage();
var path = MediaPickerDelegate.GetOutputPath(MediaImplementation.TypeImage,
_options.Directory ?? "temp",
_options.Name, index);
var image = new UIImage(cgImage, 1.0f, (UIImageOrientation)rep.Orientation);
cgImage?.Dispose();
cgImage = null;
rep?.Dispose();
rep = null;
image.AsJPEG().Save(path, true);
image?.Dispose();
image = null;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Default);
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));
}
private MediaFile GetPictureMediaFile(ALAsset asset, long index = 0)
{
var rep = asset.DefaultRepresentation;
if (rep == null)
{
return(null);
}
var cgImage = rep.GetImage();
UIImage image = null;
if (cgImage == null)
{
var fetch = PHAsset.FetchAssets(new[] { asset.AssetUrl }, null);
var ph = fetch.firstObject as PHAsset;
var manager = PHImageManager.DefaultManager;
var phOptions = new PHImageRequestOptions
{
Version = PHImageRequestOptionsVersion.Original,
NetworkAccessAllowed = true,
Synchronous = true
};
phOptions.ProgressHandler = (double progress, NSError error, out bool stop, NSDictionary info) =>
{
Debug.WriteLine($"Progress: {progress.ToString()}");
stop = false;
};
if (UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
manager.RequestImageDataAndOrientation(ph, phOptions, (data, i, orientation, k) =>
{
if (data != null)
{
image = new UIImage(data, 1.0f);
}
});
}
else
{
manager.RequestImageData(ph, phOptions, (data, i, orientation, k) =>
{
if (data != null)
{
image = new UIImage(data, 1.0f);
}
});
}
phOptions?.Dispose();
fetch?.Dispose();
ph?.Dispose();
}
else
{
image = new UIImage(cgImage, 1.0f, (UIImageOrientation)rep.Orientation);
}
var path = MediaPickerDelegate.GetOutputPath(MediaImplementation.TypeImage,
options.Directory ?? "temp",
options.Name, asset.AssetUrl?.PathExtension, index);
cgImage?.Dispose();
cgImage = null;
rep?.Dispose();
rep = null;
//There might be cases when the original image cannot be retrieved while image thumb was still present.
//Then no need to try to save it as we will get an exception here
//TODO: Ideally, we should notify the client that we failed to get original image
//TODO: Otherwise, it might be confusing to the user, that he saw the thumb, but did not get the image
if (image == null)
{
return(null);
}
image.AsJPEG().Save(path, true);
image?.Dispose();
image = null;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Default);
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));
}
public static void setCurrentPhotoToIndex (int index)
{
currentAsset = photoAssets [index];
ALAssetRepresentation rep = currentAsset.RepresentationForUti ("public.jpeg");
CGImage imageRef = rep.GetFullScreenImage ();
if (imageRef != null) {
currentPhotoImage = UIImage.FromImage (imageRef);
currentPhotoIndex = index;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Intranel.Mobile.Touch.AssetLibraryReadStream"/> class.
/// </summary>
public AssetLibraryReadStream(ALAsset asset, ALAssetsLibrary assetLibrary)
{
AssetRep = asset.DefaultRepresentation;
Lib = assetLibrary;
m_Position = 0;
}
bool ShouldSelectAsset(ALAsset asset, int previousCount)
{
var shouldSelect = MaximumImagesCount <= 0 || previousCount < MaximumImagesCount;
if (!shouldSelect) {
string title = Catalog.Format (Catalog.GetString ("Only {0} photos please!"), MaximumImagesCount);
string message = Catalog.Format (Catalog.GetString ("You can only send {0} photos at a time."), MaximumImagesCount);
var alert = new UIAlertView (title, message, null, null, Catalog.GetString ("Okay"));
alert.Show ();
}
return shouldSelect;
}
public ELCAsset(ELCAssetTablePicker parent, ALAsset asset)
{
_Parent = new WeakReference(parent);
Asset = asset;
}
private MediaFile GetPictureMediaFile(ALAsset asset, long index = 0)
{
var rep = asset.DefaultRepresentation;
if (rep == null)
{
return(null);
}
var cgImage = rep.GetImage();
UIImage image = null;
if (cgImage == null)
{
var fetch = PHAsset.FetchAssets(new[] { asset.AssetUrl }, null);
var ph = fetch.firstObject as PHAsset;
var manager = PHImageManager.DefaultManager;
var phOptions = new PHImageRequestOptions
{
Version = PHImageRequestOptionsVersion.Original,
NetworkAccessAllowed = true,
Synchronous = true
};
phOptions.ProgressHandler = (double progress, NSError error, out bool stop, NSDictionary info) =>
{
Debug.WriteLine($"Progress: {progress.ToString()}");
stop = false;
};
manager.RequestImageData(ph, phOptions, (data, i, orientation, k) =>
{
if (data != null)
{
image = new UIImage(data, 1.0f);
}
});
phOptions?.Dispose();
fetch?.Dispose();
ph?.Dispose();
}
else
{
image = new UIImage(cgImage, 1.0f, (UIImageOrientation)rep.Orientation);
}
var path = MediaPickerDelegate.GetOutputPath(MediaImplementation.TypeImage,
options.Directory ?? "temp",
options.Name, asset.AssetUrl?.PathExtension, index);
cgImage?.Dispose();
cgImage = null;
rep?.Dispose();
rep = null;
image.AsJPEG().Save(path, true);
image?.Dispose();
image = null;
GC.Collect(GC.MaxGeneration, GCCollectionMode.Default);
string aPath = null;
//try to get the album path's url
var url = asset.AssetUrl;
aPath = url?.AbsoluteString;
return(new MediaFile(path, () => File.OpenRead(path), albumPath: aPath));
}
private MediaFile GetPictureMediaFile(ALAsset asset)
{
var rep = asset.DefaultRepresentation;
if (rep == null)
{
return(null);
}
var cgImage = rep.GetImage();
var path = MediaPickerDelegate.GetOutputPath(MediaImplementation.TypeImage,
_options.Directory ?? "temp",
_options.Name);
var image = new UIImage(cgImage, 1.0f, (UIImageOrientation)rep.Orientation);
var percent = 1.0f;
if (_options.PhotoSize != PhotoSize.Full)
{
try
{
switch (_options.PhotoSize)
{
case PhotoSize.Large:
percent = .75f;
break;
case PhotoSize.Medium:
percent = .5f;
break;
case PhotoSize.Small:
percent = .25f;
break;
case PhotoSize.Custom:
percent = (float)_options.CustomPhotoSize / 100f;
break;
}
if (_options.PhotoSize == PhotoSize.MaxWidthHeight && _options.MaxWidthHeight.HasValue)
{
var max = Math.Max(image.CGImage.Width, image.CGImage.Height);
if (max > _options.MaxWidthHeight.Value)
{
percent = (float)_options.MaxWidthHeight.Value / (float)max;
}
}
if (percent < 1.0f)
{
//begin resizing image
image = image.ResizeImageWithAspectRatio(percent);
}
}
catch (Exception ex)
{
Console.WriteLine($"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));
}
public ELCAsset(ELCAssetTablePicker parent, ALAsset asset)
{
_Parent = new WeakReference (parent);
Asset = asset;
}
void PhotoEnumerator(ALAsset result, nint index, ref bool stop)
{
if (result == null) {
return;
}
ELCAsset elcAsset = new ELCAsset (this, result);
bool isAssetFiltered = false;
/*if (self.assetPickerFilterDelegate &&
[self.assetPickerFilterDelegate respondsToSelector:@selector(assetTablePicker:isAssetFilteredOut:)])
{
isAssetFiltered = [self.assetPickerFilterDelegate assetTablePicker:self isAssetFilteredOut:(ELCAsset*)elcAsset];
}*/
if (result.DefaultRepresentation == null)
isAssetFiltered = true;
if (!isAssetFiltered) {
ElcAssets.Add (elcAsset);
}
}
public static void setCurrentPhotoToIndex (int index)
{
currentAsset = photoAssets [index];
ALAssetRepresentation rep = currentAsset.RepresentationForUti ("public.jpeg");
// image might not be available as a JPEG
if (rep == null)
return;
CGImage imageRef = rep.GetFullScreenImage ();
if (imageRef == null)
return;
currentPhotoImage = UIImage.FromImage (imageRef);
currentPhotoIndex = index;
}
bool ShouldSelectAsset(ALAsset asset, int previousCount)
{
var shouldSelect = MaximumImagesCount <= 0 || previousCount < MaximumImagesCount;
if (!shouldSelect) {
var first = NSBundle.MainBundle.LocalizedString ("Only", "Only");
var second = NSBundle.MainBundle.LocalizedString ("photos please", "photos please!");
string title = String.Format ("{0} {1} {2}", first, MaximumImagesCount, second);
var third = NSBundle.MainBundle.LocalizedString ("You can only send", "You can only send");
var fourth = NSBundle.MainBundle.LocalizedString ("photos at a time", "photos at a time.");
string message = String.Format ("{0} {1} {2}", third, MaximumImagesCount, fourth);
var alert = new UIAlertView (title, message, null, null, NSBundle.MainBundle.LocalizedString ("Okay", "Okay"));
alert.Show ();
}
return shouldSelect;
}
/// <summary>
/// Initializes a new instance of the <see cref="Intranel.Mobile.Touch.AssetLibraryReadStream"/> class.
/// </summary>
public AssetLibraryReadStream(ALAsset asset, ALAssetsLibrary assetLibrary)
{
AssetRep = asset.DefaultRepresentation;
Lib = assetLibrary;
m_Position = 0;
}
