title: ButterKnife onclick is not working
body: <p>I injected views perfectly using butterknife library. But when I try to implement listeners, for example <code>onclick</code> I'm not able to implement them. Following java code will help you to understand my problem.</p>
  
  <p>Java code:</p>
  
  <pre><code>public class LoginActivity extends ActionBarActivity{
      @InjectView(R.id.toolbar) Toolbar toolbar;
      @InjectView(R.id.btn_login) Button login;
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.login);
          ButterKnife.inject(this);
  
          initialize();
          //initListeners();
  
          @OnClick(R.id.btn_login)
          public void submit(View view) {
            // TODO submit data to server...
          }
      }
  
      /*private void initListeners() {
          @OnClick(R.id.btn_login)
          public void login(){
  
          }
      }*/
  
      private void initialize() {
          setSupportActionBar(toolbar);
          getSupportActionBar().setIcon(R.drawable.toolbar_icon);
          getSupportActionBar().setTitle(null);
          getSupportActionBar().setDisplayShowHomeEnabled(true);
      }
  }
  </code></pre>
  
  <p>Tell me why it is happening. Anything wrong in code? I've already configured the IDE which is compatible with ButterKnife by using following URL.</p>
  
  <p>http://stackoverflow.com/questions/27754811/onclick-is-not-working-in-implementation-of-butterknife-library</p>
  
  <p>Please give me any suggestions regarding this issue. Thanks in Advance..</p>