private async Task GeoTagPhotoAsync()
{
// see if the photo already contains geo coords
var exif = new ExifInterface(_file.Path);
if (!string.IsNullOrWhiteSpace(exif.GetAttribute(ExifInterface.TagGpsLatitude)))
return;
RequestCurrentLocation();
var location = await _locationTCS.Task;
try
{
int num1Lat = (int)Math.Floor(location.Latitude);
int num2Lat = (int)Math.Floor((location.Latitude - num1Lat) * 60);
double num3Lat = (location.Latitude - ((double)num1Lat + ((double)num2Lat / 60))) * 3600000;
int num1Lon = (int)Math.Floor(location.Longitude);
int num2Lon = (int)Math.Floor((location.Longitude - num1Lon) * 60);
double num3Lon = (location.Longitude - ((double)num1Lon + ((double)num2Lon / 60))) * 3600000;
exif.SetAttribute(ExifInterface.TagGpsLatitude, num1Lat + "/1," + num2Lat + "/1," + num3Lat + "/1000");
exif.SetAttribute(ExifInterface.TagGpsLongitude, num1Lon + "/1," + num2Lon + "/1," + num3Lon + "/1000");
if (location.Latitude > 0)
{
exif.SetAttribute(ExifInterface.TagGpsLatitudeRef, "N");
}
else
{
exif.SetAttribute(ExifInterface.TagGpsLatitudeRef, "S");
}
if (location.Longitude > 0)
{
exif.SetAttribute(ExifInterface.TagGpsLongitudeRef, "E");
}
else
{
exif.SetAttribute(ExifInterface.TagGpsLongitudeRef, "W");
}
exif.SaveAttributes();
}
catch (Java.IO.IOException)
{
// location will not be available on this image, but continue
}
}
public void OnPictureTaken(byte[] data, Android.Hardware.Camera camera)
{
FileOutputStream output = null;
string path = System.IO.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.MyDocuments), "Images");
if (!System.IO.Directory.Exists(path))
System.IO.Directory.CreateDirectory(path);
string filename = PictureName + number.ToString() + ".jpg";
if (data != null)
{
fullFilename = System.IO.Path.Combine(path, filename);
number++;
try
{
output = new FileOutputStream(fullFilename);
output.Write(data);
output.Close();
}
catch (FileNotFoundException)
{
RunOnUiThread(delegate
{
GeneralUtils.Alert(context, Application.Context.Resources.GetString(Resource.String.commonError),
Application.Context.Resources.GetString(Resource.String.errorFileTransfer));
});
return;
}
catch (IOException)
{
RunOnUiThread(delegate
{
GeneralUtils.Alert(context, Application.Context.Resources.GetString(Resource.String.commonError),
Application.Context.Resources.GetString(Resource.String.errorNoImagesTaken));
});
isRunning = true;
camera.StartPreview();
return;
}
catch (Exception e)
{
#if DEBUG
System.Diagnostics.Debug.WriteLine("Exception thrown - {0}", e.Message);
#endif
return;
}
var f = new File(fullFilename);
try
{
var exifInterface = new ExifInterface(f.CanonicalPath);
exifInterface.GetAttribute(ExifInterface.TagModel);
var latLong = new float[2];
exifInterface.GetLatLong(latLong);
exifInterface.SetAttribute(ExifInterface.TagMake, "Phone picture");
exifInterface.SetAttribute(ExifInterface.TagDatetime, DateTime.Now.ToString());
}
catch (IOException)
{
RunOnUiThread(delegate
{
GeneralUtils.Alert(context, Application.Context.Resources.GetString(Resource.String.commonError),
Application.Context.Resources.GetString(Resource.String.errorStoreEXIF));
});
isRunning = true;
camera.StartPreview();
return;
}
}
RunOnUiThread(() => Toast.MakeText(context, Application.Context.Resources.GetString(Resource.String.commonPictureTaken), ToastLength.Short).Show());
isRunning = true;
camera.StartPreview();
return;
}
