title: How get textview height
body: <p>My layout as below:</p>
  
  <pre><code>&lt;LinearLayout
      android:id="@+id/layout"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:gravity="center_vertical"
      android:orientation="vertical" &gt;
  
  
      &lt;TextView
          android:id="@+id/title"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" /&gt;
  
  
      &lt;TextView
          android:id="@+id/info"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>My code as below:</p>
  
  <pre><code>TextView title = (TextView)findViewById(R.id.title);
  title.setText("ABCDE...");
  title.setTextSize(20);
  
  TextView info = (TextView)findViewById(R.id.info);
  info.setText("abcde...");
  info.setTextSize(16);
  
  LinearLayout layout = (LinearLayout)findViewById(R.id.layout);
  </code></pre>
  
  <p>I want to get the height of TextView title and info, or the height of layout.
  How to do it?</p>