title: Get values other views when onClick. DataBinding
body: <p>I have xml with android data binding:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;layout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:app="http://schemas.android.com/apk/res-auto"&gt;
  
      &lt;data&gt;
          &lt;variable name="presenter" type="com.myapp.presentation.presenter.CreateUserPresenter"/&gt;
      &lt;/data&gt;
              &lt;LinearLayout
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:orientation="vertical"&gt;
  
                  &lt;android.support.design.widget.TextInputLayout
                      android:id="@+id/firstNameInput"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:paddingLeft="16dp"
                      android:paddingTop="8dp"
                      android:paddingRight="16dp"
                      android:paddingBottom="8dp"&gt;
                      &lt;android.support.design.widget.TextInputEditText
                          android:layout_width="match_parent"
                          android:layout_height="wrap_content"
                          android:inputType="textCapSentences"
                          android:hint="@string/first_name" /&gt;
                  &lt;/android.support.design.widget.TextInputLayout&gt;
                  &lt;android.support.design.widget.TextInputLayout
                      android:id="@+id/secondNameInput"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:paddingLeft="16dp"
                      android:paddingTop="8dp"
                      android:paddingRight="16dp"
                      android:paddingBottom="8dp"&gt;
                      &lt;android.support.design.widget.TextInputEditText
                          android:layout_width="match_parent"
                          android:layout_height="wrap_content"
                          android:inputType="textCapSentences"
                          android:hint="@string/second_name" /&gt;
                  &lt;/android.support.design.widget.TextInputLayout&gt;
                  &lt;android.support.v7.widget.AppCompatButton
                      android:id="@+id/btnCreate"
                      style="@style/Widget.AppCompat.Button.Colored"
                      android:layout_width="match_parent"
                      android:layout_height="wrap_content"
                      android:layout_margin="12dp"
                      android:text="@string/create"
                      android:onClick="@{(view) -&gt; presenter.createUser()}" /&gt;    
              &lt;/LinearLayout&gt;    
  &lt;/layout&gt;
  </code></pre>
  
  <p>and <code>CreateUserPresenter.class</code>:</p>
  
  <pre><code>public class CreateUserPresenter {
  
      public CreateUserPresenter () {}
  
      public void createUser(String firstName, String lastName) {
  
      }
  }
  </code></pre>
  
  <p>How to pass the input (<code>firstNameInput</code> and <code>secondNameInput</code>) values in the method <code>createUser()</code> on click button?</p>
  
  <pre><code>android:onClick="@{(view) -&gt; presenter.createUser()}"
  </code></pre>