title: Default text in TextView
body: <p>If I have a <code>textview</code> like this:</p>
  
  <pre><code>&lt;TextView
          android:id="@+id/time"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="Elapsed Time: " /&gt;
  </code></pre>
  
  <p>I want my app to always display "Elapsed Time: ", followed by some value which I will update in my MainActivity. How can I do this without doing</p>
  
  <pre><code>mTimeTextView.setText("Elapsed Time: " + &lt;some value here&gt;);
  </code></pre>
  
  <p>each time?</p>