Best way to implement View.OnClickListener in android

Question

Suppose we have an Activity with a lot of views on which OnClickListener is to be registered.

The most common way to implement this is to let the Activi

Answer 1

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private Chronometer chronometer;
    private Button startButton;
    private Button stopButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        chronometer = findViewById(R.id.chronometer);
        startButton =findViewById(R.id.startBtn);
        stopButton = findViewById(R.id.stopBtn);

        startButton.setOnClickListener(this);
        stopButton.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.startBtn:
                chronometer.start();
                break;
            case R.id.stopBtn:`
                chronometer.stop();
                break;

        }
    }

}