Button button = (Button) findViewById(R.id.button);

@InjectView(R.id.button) Button mButton;

button.setOnClickListener(new View.OnClickListener() {
  public void onClick(View v) {
    // ...
  }
});

@OnClick(R.id.button)
public void onButtonClick() {
  // ...
}

static class ViewHolder{
    @InjectView(R.id.image_in_item)
    ImageView image;
    @InjectView(R.id.textview_in_item)
    TextView text;

    public ViewHolder(View view){
        ButterKnife.inject(this, view);
    }
}