File file = new File(filePath);
        Uri contentUri = FileProvider.getUriForFile(getApplicationContext(), "com.screencapture.reva.screencapture.fileprovider", file);
        grantUriPermission("com.screencapture.reva.screencapture.fileprovider", contentUri, Intent.FLAG_GRANT_READ_URI_PERMISSION);

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(contentUri, "video/mp4");
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        startActivity(intent);

            //copy file
            File srcFile = new File(filePath);
            File dstDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
            String newFile;
            try {
                newFile = copyFile(srcFile,dstDir);
            } catch (IOException e) {
                Log.e(TAG,e.getMessage());
                return;
            }


            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(newFile));
            intent.setDataAndType(Uri.parse(newFile), "video/mp4");
            //intent.setData(Uri.parse(filePath));
            //intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            startActivity(intent);

    /**
     * Move source file to destination directory
     * @param fileSrc - source file
     * @param dirDst - destination directory
     * @throws IOException
     */
    private String copyFile(File fileSrc, File dirDst) throws IOException {
        File newFile = new File(dirDst, fileSrc.getName());
        FileChannel outputChannel = null;
        FileChannel inputChannel = null;
        try {
            outputChannel = new FileOutputStream(newFile).getChannel();
            inputChannel = new FileInputStream(fileSrc).getChannel();
            inputChannel.transferTo(0, inputChannel.size(), outputChannel);
            inputChannel.close();
            //fileSrc.delete();
        } finally {
            if (inputChannel != null) inputChannel.close();
            if (outputChannel != null) outputChannel.close();
        }
        return newFile.getAbsolutePath();
    }