How to get the file path of an image in Camera2Basic api? - xamarin

Question

this must be a stupid question but please help me. How can we get the image file path in camera2basic api and display the image on the other activity's imageview? I have been trying to get the "Absolutepath" of the mFile in the project but not getting anything.
As Camera2 api is relatively complex to understand for me. Please help me.
public override void OnActivityCreated(Bundle savedInstanceState)
{
base.OnActivityCreated(savedInstanceState);
mFile = new Java.IO.File(Activity.GetExternalFilesDir(null), "pic.jpg");
mCaptureCallback = new CameraCaptureListener(this);
mOnImageAvailableListener = new ImageAvailableListener(this, mFile);
}
when we press the button, it evokes takepicture(); which has lockfocus();
private void LockFocus()
{
try
{
// This is how to tell the camera to lock focus.
mPreviewRequestBuilder.Set(CaptureRequest.ControlAfTrigger, (int)ControlAFTrigger.Start);
// Tell #mCaptureCallback to wait for the lock.
mState = STATE_WAITING_LOCK;
mCaptureSession.Capture(mPreviewRequestBuilder.Build(), mCaptureCallback,
mBackgroundHandler);
}
catch (CameraAccessException e)
{
e.PrintStackTrace();
}
}
I have showCapturePhoto which is getting the image from ImageAvailableListener
using Android.Media;
using Java.IO;
using Java.Lang;
using Java.Nio;
using Android.Util;
namespace Camera2Basic.Listeners
{
public class ImageAvailableListener : Java.Lang.Object,
ImageReader.IOnImageAvailableListener
{
private readonly File file;
private Camera2BasicFragment owner;
public ImageAvailableListener(Camera2BasicFragment fragment, File
file)
{
if (fragment == null)
throw new System.ArgumentNullException("fragment");
if (file == null)
throw new System.ArgumentNullException("file");
owner = fragment;
this.file = file;
}
//public File File { get; private set; }
//public Camera2BasicFragment Owner { get; private set; }
public void OnImageAvailable(ImageReader reader)
{
owner.mBackgroundHandler.Post(new ImageSaver(reader.AcquireNextImage(), file));
}
// Saves a JPEG {#link Image} into the specified {#link File}.
private class ImageSaver : Java.Lang.Object, IRunnable
{
// The JPEG image
private Image mImage;
// The file we save the image into.
private File mFile;
public ImageSaver(Image image, File file)
{
if (image == null)
throw new System.ArgumentNullException("image");
if (file == null)
throw new System.ArgumentNullException("file");
mImage = image;
mFile = file;
}
public void Run()
{
ByteBuffer buffer = mImage.GetPlanes()[0].Buffer;
byte[] bytes = new byte[buffer.Remaining()];
buffer.Get(bytes);
using (var output = new FileOutputStream(mFile))
{
try
{
output.Write(bytes);
}
catch (IOException e)
{
e.PrintStackTrace();
}
finally
{
mImage.Close();
}
}
Camera2BasicFragment.showCapturedPhoto(mImage);
}
}
}
}
ShowcapturePhoto
public static void showCapturedPhoto(Image img)
{
ByteBuffer buffer;
byte[] bytes;
MemoryStream memStream = new MemoryStream();
buffer = img.GetPlanes()[0].Buffer;
bytes = new byte[buffer.Capacity()];
buffer.Get(bytes);
Activity activity= new Activity();
Intent showPhoto = new Intent(activity, typeof(RetryOK));
showPhoto.PutExtra("savedImg", bytes);
showPhoto.PutExtra("zoomAmount", 1.7f / 1.4f);
showPhoto.PutExtra("focusDistance", -1.0f);
activity.StartActivity(typeof(RetryOK));
}