Where to set all Listeners?

Question

Where to set all Listeners for the user interfaces?
Is it good practice to set them in onCreate? This looks so unstructured and strange.
Is

Answer 1

This might be what you want to avoid a mess

public class SomeActivity extends Activity{
    @Override
    protected void onCreate(Bundle savedInstanceState){
        Button button1 = (Button)findViewById(R.id.button1);
        button1.setOnClickListener(new OnClickListener(){
            @Override
            public void onClick(View view){
                SomeActivity.this.button1_onClick(view);
            }
        });
    }

    private void button1_onClick(View view){
        ///do stubs here
    }
}