Xamarin Android Take picture intent save 0b file - webview

Question

i'm trying to take a pitcure with camera startin from fileupload of webview.
All code works for file chooser, but when i take a pitcure with camera, i found a 0b file in the directory where i create the temp file.
Someone can help me?
Here my code for customchromeclient filechooser event:
public override bool OnShowFileChooser(Android.Webkit.WebView webView, Android.Webkit.IValueCallback filePathCallback, FileChooserParams fileChooserParams)
{
string[] type = fileChooserParams.GetAcceptTypes();
this.mFilePathCallback = filePathCallback;
px_MyActivity.mFilePathCallback = filePathCallback;
if (string.Join("/", type).Contains("jpg") || string.Join("/", type).Contains("image"))
{
try
{
Intent takePictureIntent = new Intent(Android.Provider.MediaStore.ActionImageCapture);
if (takePictureIntent.ResolveActivity(px_MyActivity.PackageManager) != null) {
Java.IO.File photoFile = null;
try
{
photoFile = createImageFile();
}
catch(Exception e)
{
}
if (photoFile != null) {
mCameraPhotoPath = "file:" + photoFile.AbsolutePath;
//takePictureIntent.PutExtra(Android.Provider.MediaStore.ExtraOutput, photoFile);
px_MyActivity.mCameraPhotoPath = Android.Net.Uri.FromFile(photoFile); ;
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ActionGetContent);
contentSelectionIntent.AddCategory(Intent.CategoryOpenable);
contentSelectionIntent.SetType("image/*");
Intent[] intentArray;
if(takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent};
} else {
intentArray = new Intent[0];
}
//Intent chooserIntent = new Intent(Intent.ActionChooser);
Intent chooserIntent = Intent.CreateChooser(contentSelectionIntent, "Carica Foto");
chooserIntent.PutExtra(Intent.ExtraIntent, contentSelectionIntent);
chooserIntent.PutExtra(Intent.ExtraTitle, "Carica Foto");
chooserIntent.PutExtra(Intent.ExtraInitialIntents, intentArray);
px_MyActivity.StartActivityForResult(chooserIntent, PHOTO_REQUEST);
}catch(Exception ex){
}
}
else if (string.Join("/", type).Contains("mpg"))
{
Intent takePictureIntent = new Intent(Android.Provider.MediaStore.ActionVideoCapture);
}
else
{
Intent chooserIntent = fileChooserParams.CreateIntent();
chooserIntent.SetType("file/*");
chooserIntent.AddCategory(Intent.CategoryOpenable);
px_MyActivity.StartActivity(Intent.CreateChooser(chooserIntent, "File Chooser"), FILECHOOSER_RESULTCODE, this.OnFileChooserEnd);
}
return true;
}
private Java.IO.File createImageFile(){
// Create an image file name
string timeStamp = Android.OS.SystemClock.CurrentThreadTimeMillis().ToString();
string imageFileName = "JPEG_" + timeStamp + "_";
Java.IO.File storageDir = new Java.IO.File(Android.OS.Environment.ExternalStorageDirectory.Path);
Java.IO.File imageFile = Java.IO.File.CreateTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
return imageFile;
}
and here the code for avtivityresult:
protected override void OnActivityResult(int requestCode, Result resultVal, Android.Content.Intent data)
{
if (resultVal == Result.Ok)
{
if (requestCode == SPEECH)
{
var matches = data.GetStringArrayListExtra(RecognizerIntent.ExtraResults);
if (matches.Count != 0)
{
string xResult = matches[0];
if (xResult.Length > 500)
{
xResult = xResult.Substring(0, 500);
}
Xamarin.Forms.MessagingCenter.Send(this, "SpeechEnd", xResult);
}
}else if (requestCode == FILECHOOSER_RESULTCODE)
{
}else if (requestCode == PHOTO_REQUEST)
{
if (mFilePathCallback == null)
{
base.OnActivityResult(requestCode, resultVal, data);
return;
}
Android.Net.Uri[] result = null;
if (data == null)
{
if (mCameraPhotoPath != null)
{
result = new Android.Net.Uri[] { mCameraPhotoPath };
}
}
else
{
string xDataString = data.DataString;
if (xDataString != null)
{
result = new Android.Net.Uri[] { Android.Net.Uri.Parse(xDataString) };
}
else
{
Android.Graphics.Bitmap xImage = (Android.Graphics.Bitmap)data.Extras.Get("data");
try
{
//if(Android.Support.V4.Content.ContextCompat.CheckSelfPermission(this, Android.Manifest.Permission.ReadExternalStorage) == Permission.Granted)
//{
// var xStream = new System.IO.FileStream(mCameraPhotoPath.Path, System.IO.FileMode.OpenOrCreate);
// xImage.Compress(Bitmap.CompressFormat.Jpeg, 100, xStream);
// xStream.Flush();
// xStream.Close();
// //string path = Android.Provider.MediaStore.Images.Media.InsertImage(ContentResolver, xImage, "Title", "prova 1");
// // string path = Android.Provider.MediaStore.Images.Media.InsertImage(ContentResolver, mCameraPhotoPath.Path, "Title.jpg", "prova 1");
//}
if (mCameraPhotoPath != null)
{
result = new Android.Net.Uri[] { mCameraPhotoPath };
}
}
catch (Java.IO.IOException e)
{
e.PrintStackTrace();
}
}
}
//mFilePathCallback.OnReceiveValue(Android.Webkit.WebChromeClient.FileChooserParams.ParseResult((int)resultVal, data));
mFilePathCallback.OnReceiveValue(result);
mFilePathCallback = null;
}
}else{
if (requestCode == PHOTO_REQUEST)
{
mFilePathCallback.OnReceiveValue(Android.Webkit.WebChromeClient.FileChooserParams.ParseResult((int)resultVal, null));
}
}