title: Flutter: CupertinoNavigationBar with leading icon and title
body: <p>how can I create in Flutter a leading item of Navigation bar with back icon and title of the previous scaffold. Have a look in a picture:</p>
  
  <p><a href="https://i.stack.imgur.com/wMgzl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wMgzl.png" alt="enter image description here"></a></p>
  
  <p>I've tried to put a <code>Text</code> widget inside a <code>Row</code> but got an overflow.</p>
  
  <pre><code>CupertinoNavigationBar(
      middle: Text('New report'),
      leading: Align(
        alignment: Alignment(-1.5, -1),
        child: IconButton(
          onPressed: () {
            Navigator.pop(context);
          },
          icon: Row(
            mainAxisAlignment: MainAxisAlignment.start,
            children: &lt;Widget&gt;[
              Icon(
                CupertinoIcons.left_chevron,
                color: CupertinoColors.destructiveRed,
              ),
            ],
          ),
        ),
      ),
    ),
  </code></pre>
  
  <p>Thanks in advance!</p>