//Scan activity
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        cardnumberbox.requestFocus();}
 cardnumberbox.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            }

            @Override
            public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                String text1 = cardnumberbox.getText().toString().trim();
                if (text1.equals("R")) {
                    Toast.makeText(getApplicationContext(), getString(R.string.Skan_Udfyld_Kort_Nummer), Toast.LENGTH_SHORT).show();
                    cardnumberbox.setText("");
                    cardnumberbox.requestFocus();
                } else if (cardnumberbox.getText().toString().length() > 0) {
                    shelfnumberbox.requestFocus();
                }
                {
                }
            }

//cam activity
    public void btn_aprove2(View view) {
        Intent i = new Intent(CameraActivity.this, ScanActivity.class);
        String counts = count.getText().toString().trim();
        i.putExtra("EXTRA_SESSION_IDs", counts);
        String carde = cardnumberbox2.getText().toString().trim();
        i.putExtra("EXTRA_SESSION_ID", carde);
        startActivity(i);
        finish();
    }