title: how to navigate back to login page after successful register
body: <pre><code>  @Override
      public void onClick(View v) {
           if(v == buttonRegister){
              registerUser();
            }
       }
  private void registerUser() {
      ?*some code here*/   
  }
  private void register(String name, String email, String password, String phone ) {
      String urlSuffix = "?name="+name+"&amp;email="+email+"&amp;password="+password+"&amp;phone="+phone;
      class RegisterUser extends AsyncTask&lt;String, Void, String&gt; {
          ProgressDialog loading;
          @Override
          protected void onPreExecute() {
              super.onPreExecute();
              loading = ProgressDialog.show(SignUpActivity.this, "Please Wait",null, true, true);
          }
          @Override
          protected void onPostExecute(String s) {
              super.onPostExecute(s);
              loading.dismiss();
              Toast.makeText(getApplicationContext(), s, Toast.LENGTH_SHORT).show();
  
  
          }
  
          @Override
          protected String doInBackground(String... params) {
              String s = params[0];
              BufferedReader bufferedReader = null;
              try {
                  URL url = new URL(REGISTER_URL+s);
                  HttpURLConnection con = (HttpURLConnection) url.openConnection();
                  bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
  
                  String result;
  
                  result = bufferedReader.readLine();
  
                  return result;
              }catch(Exception e){
                  return null;
              }
          }
      }
  
      RegisterUser ru = new RegisterUser();
      ru.execute(urlSuffix);
  }
  </code></pre>