TakePicture.java

public class NewActivity extends AppCompatActivity {

    private static final String TAG = "[NewActivity]";

    private static final int PHOTO_REQUEST_CODE = 102;
    private String path;
    Uri photoURI = null;

    @BindView(R.id.img_output)
    ImageView imgOutput;
    @BindView(R.id.img_camera)
    ImageView imgCamera;
    @BindView(R.id.btn_delete)
    Button btnDelete;


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        final PermissionManager permissionManager = new PermissionManager();
        Glide.with(this).load(R.drawable.photo).into(imgCamera);
        imgCamera.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (permissionManager.userHasPermission(NewActivity.this)) {
                    takePicture();
                } else {
                    permissionManager.requestPermission(NewActivity.this);
                }
            }
        });

        btnDelete.setOnClickListener(v -> {
            File fi = new File(path);
            deleteAndScanFile(this, path, fi, photoURI);

        });
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == PHOTO_REQUEST_CODE && resultCode == Activity.RESULT_OK) {
            Bitmap source = BitmapFactory.decodeFile(path, provideCompressionBitmapFactoryOptions());
            imgOutput.setImageBitmap(source);
        }
    }

    private void takePicture() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            try {
                File photoFile = createImageFileWith();
                path = photoFile.getAbsolutePath();
                photoURI = FileProvider.getUriForFile(NewActivity.this,
                        getString(R.string.file_provider_authority),
                        photoFile);

            } catch (IOException ex) {
                Log.e("TakePicture", ex.getMessage());
            }
            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
            if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP) {
                takePictureIntent.setClipData(ClipData.newRawUri("", photoURI));
                takePictureIntent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
            }
            startActivityForResult(takePictureIntent, PHOTO_REQUEST_CODE);
        }
    }

    private static BitmapFactory.Options provideCompressionBitmapFactoryOptions() {
        BitmapFactory.Options opt = new BitmapFactory.Options();
        opt.inJustDecodeBounds = false;
        opt.inPreferredConfig = Bitmap.Config.RGB_565;
        return opt;
    }

    public File createImageFileWith() throws IOException {
        final String timestamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        final String imageFileName = "JPEG_" + timestamp;
        File storageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "pics");
        storageDir.mkdirs();
        return File.createTempFile(imageFileName, ".jpg", storageDir);
    }

    private void deleteAndScanFile(final Context context, String path,
                                   final File fi, Uri photoURI) {

        String fpath = path.substring(path.lastIndexOf("/") + 1);
        Log.i("fpath", fpath);
        try {
            MediaScannerConnection.scanFile(context, new String[]{Environment
                            .getExternalStorageDirectory().toString()
                            + "/images/"
                            + fpath.toString()}, null,
                    new MediaScannerConnection.OnScanCompletedListener() {
                        public void onScanCompleted(String path, Uri uri) {
                            if (photoURI != null) {
                                context.getContentResolver().delete(photoURI, null,
                                        null);//here is the line where i am getting exception
                            }
                            fi.delete();
                            System.out.println("file Deleted :" + fi.getPath());
                            Log.i("ExternalStorage", "Scanned " + path + ":");
                            Log.i("ExternalStorage", "-> uri=" + uri);
                        }
                    });
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}