my image is not displayed - android

I have a weird problem!
My application calls the phone's camera to take a picture.
The photo is taken and stored in the ad hoc directory successfully
However, when I open the photo is not displayed (black screen)
and when I send the photo by email I can open it in my pc.
Here is the code :
String imageName = txtNomPhoto.getText().toString()+JPEG_FILE_SUFFIX;
File dossier = new File(Environment.getExternalStorageDirectory(),"/DossierPhotos");
if (!dossier.exists()){
if (dossier.mkdir()){
}
}
File mFichier = new File(dossier.getAbsolutePath(),imageName);
Uri fileUri = Uri.fromFile(mFichier);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent, PHOTO_RESULT);
Thank you for your quick help.

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I'm using this code to open camera intent :
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startActivityForResult(takePicture, 0);
And it works fine but only on Samsung devices (8\9) with android 8
after I take a picture the preview is all blurry ,
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( I also tried without the putExtra line )
Here are the screenshots :
]3
you have to give a photo path Uri as an extra in the camera intent as:
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in my onActivityResult the intent is null so I cannot use anything there to get the Uri but doing this.
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I am using this code to take the picture from the camera
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
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TIA,
VijayRaj
This may have to do with the fact that the Android media scanner is not constantly indexing files on the phone. In the past I have called the following function immediately after saving an image to notify the MediaScanner:
private void scanMedia(File file) {
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sendBroadcast(scanFileIntent);
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Hope this works!

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vals.put(Media.MIME_TYPE, "image/jpeg");
Uri imageFileUri = context.getContentResolver()
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i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, imageFileUri);
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I suppose I could downsample after the picture is taken, but if I can request the activity do it for me I would like to do so.
As bonus questions, how do I change the album they get saved to in the gallery, and how do I prevent the camera activity from saving a copy in the default location (on my phone it is "photos")

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