private static bool TryGetOrientation(string url, out Orientation rez)
{
try
{
var ei = new ExifInterface(url);
rez = (Orientation)ei.GetAttributeInt(ExifInterface.TagOrientation, (int)Orientation.Normal);
return(true);
}
catch
{
//nothing to do
}
rez = Orientation.Normal;
return(false);
}
/**
* Gets the Amount of Degress of rotation using the exif integer to determine how much
* we should rotate the image.
* @param exifOrientation - the Exif data for Image Orientation
* @return - how much to rotate in degress
*/
public static int ExifToDegrees(Orientation exifOrientation)
{
if (exifOrientation == Orientation.Rotate90)
{
return(90);
}
else if (exifOrientation == Orientation.Rotate180)
{
return(180);
}
else if (exifOrientation == Orientation.Rotate270)
{
return(270);
}
return(0);
}
//Background image
public void LoadImage(string path, bool IsInResources, Abstractions.Scaling Scaling = Abstractions.Scaling.Absolute_None)
{
backgroundScaling = Scaling;
if (IsInResources)
{
string file = path.Split('.')[0];
var id = Resources.GetIdentifier(file.ToLower(), "drawable", Context.PackageName);
backgroundBitmap = BitmapFactory.DecodeResource(Resources, id);
}
else
{
backgroundBitmap = BitmapFactory.DecodeFile(path);
ExifInterface exif = new ExifInterface(path);
var orientationAttribute = exif.GetAttribute(ExifInterface.TagOrientation);
Android.Media.Orientation orientationRotate = (Android.Media.Orientation) int.Parse(orientationAttribute);
int imageRotation = 0;
switch (orientationRotate)
{
case Android.Media.Orientation.Rotate90:
imageRotation = 90;
break;
case Android.Media.Orientation.Rotate180:
imageRotation = 180;
break;
case Android.Media.Orientation.Rotate270:
imageRotation = 270;
break;
}
imageSize.X = backgroundBitmap.Width;
imageSize.Y = backgroundBitmap.Height;
orientation = imageRotation;
backgroundBitmap = RotateBitmap(backgroundBitmap, imageRotation);
}
}
