How to reset Activity in android

btn_reset.setOnClickListener(new View.OnClickListener()
 {
 @Override
 public void onClick(View v)
 {
 btn_reset.setTextColor(Color.WHITE);
 btn_reset.setBackgroundResource(R.drawable.btn_selec);
 Intent intent = getIntent();
 finish();
 startActivity(intent);
 mDialog_timerup.dismiss();
 }});