public class Visualizador_pdf extends AppCompatActivity {

    private TextView textView;
    private File file;

    //Declaracions de la conexió:

    private static final String TAG = "Visualizador_pdf";
    public static Context cntx = null;
    private static final String HOST = "ftp.appdesigndm.com";
    private static final String USER = "master@appdesigndm.com";
    private static final String PASS = "Alin1022";
    public static FTPClient mFTPClient = null;

    String srcFilePath = "";
    String desFileStream = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/PDF/" + "des.pdf";



    //-------------------------------------------------------------------------------------------------------------------------------

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_visualizador_pdf);

        cntx = this;
        mFTPClient = new FTPClient();

        //String ruta = "";
        //file = new File(ruta);
        //textView = (TextView) findViewById(R.id.text);

        Intent intent = getIntent();
        Bundle extras = intent.getExtras();

        if (extras != null) {

            srcFilePath = extras.getString("PDF");

            Toast.makeText(getApplicationContext(), srcFilePath, Toast.LENGTH_LONG).show();


            HiloDescarga hilo = new HiloDescarga();
            hilo.execute(srcFilePath, desFileStream);

            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            //llamarpdf();

        }

    }

    public static boolean download(String srcFilePath, String desFilePath) {
        boolean status = false;

        try {
            File f = new File(desFilePath.substring(0, desFilePath.lastIndexOf("/") + 1));
            if (!f.exists()) {
                f.mkdirs();
            }

            FileOutputStream desFileStream = new FileOutputStream(desFilePath);

            mFTPClient.connect(HOST);
            mFTPClient.login(USER, PASS);

            status = mFTPClient.retrieveFile(srcFilePath, desFileStream);
            desFileStream.close();
            return status;

        } catch (Exception e) {
            Log.e(TAG, e.toString());
            Log.d(TAG, "download failed");
        } finally {
            try {
                mFTPClient.disconnect();
            } catch (Exception e) {
                Log.e(TAG, e.toString());
            }
        }

        return status;

    }





    public void llamarpdf() {

        String path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/PDF/" + "des.pdf";

        File file = new File(path);
        Intent aviso = new Intent(Intent.ACTION_VIEW);
        aviso.setDataAndType(Uri.fromFile(file), "application/pdf");
        aviso.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
        Intent intent = Intent.createChooser(aviso, "Open file");
        try {
            startActivity(intent);
        } catch (ActivityNotFoundException e) {

        }
        finish();
    }
    @Override
    protected void onStop() {
        super.onStop();
    }
}