public class MainActivity extends AppCompatActivity {

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


        final TextView text = (TextView)findViewById(R.id.infoText);


        Button button = (Button)findViewById(R.id.buttonInfo);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
               EditText etnickname = (EditText) findViewById(R.id.loginField);
               TimePicker tptime = (TimePicker) findViewById(R.id.timePicker);
               String time = String.valueOf(tptime.getHour() + ":" +String.valueOf(tptime.getMinute()));
               text.setText(etnickname.getText() +  "\t-" +time);
            }
        });
    }
}